cd /tmp/workspace && python3 -c " import pdfplumber pdf_path = '/tmp/workspace/attachments/e84ebe21-bb8d-409a-ba0d-70e5fd7f2b30/Block_N_Surgery_260721_185719.pdf' with pdfplumber.open(pdf_path) as pdf: print(f'Total pages: {len(pdf.pages)}') for i, page in enumerate(pdf.pages): text = page.extract_text() print(f'\\n===PAGE {i+1}===') print(text[:3000] if text else '[No text extracted]') print('---END---') " 2>&1 | head -500

cd /tmp/workspace && python3 -c " import pdfplumber pdf_path = '/tmp/workspace/attachments/e84ebe21-bb8d-409a-ba0d-70e5fd7f2b30/Block_N_Surgery_260721_185719.pdf' with pdfplumber.open(pdf_path) as pdf: for i, page in enumerate(pdf.pages): if i < 15: continue text = page.extract_text() print(f'\\n===PAGE {i+1}===') print(text[:3000] if text else '[No text extracted]') print('---END---') " 2>&1 | head -600

cd /tmp/workspace && python3 -c " import pdfplumber pdf_path = '/tmp/workspace/attachments/e84ebe21-bb8d-409a-ba0d-70e5fd7f2b30/Block_N_Surgery_260721_185719.pdf' with pdfplumber.open(pdf_path) as pdf: all_pages = {} for i, page in enumerate(pdf.pages): text = page.extract_text() all_pages[i+1] = text if text else '[No text]' # Print pages 32-50 for i in range(32, 51): print(f'\\n===PAGE {i}===') print(all_pages.get(i, '[Missing]')[:3000]) print('---END---') " 2>&1 | head -700

mkdir -p /tmp/workspace/surgery-explanation && ls /tmp/workspace/surgery-explanation/

mkdir -p /tmp/workspace/surgery-explanation && cat > /tmp/workspace/surgery-explanation/build_pdf.py << 'PYEOF' from reportlab.lib.pagesizes import A4 from reportlab.lib import colors from reportlab.lib.units import cm from reportlab.platypus import ( SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle, HRFlowable, KeepTogether, PageBreak ) from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_JUSTIFY from reportlab.graphics.shapes import Drawing, Rect, String, Line, Circle, Polygon from reportlab.graphics import renderPDF from reportlab.platypus.flowables import Flowable import textwrap # ── colour palette ────────────────────────────────────────────────────────── C_DARK = colors.HexColor('#1a2744') # deep navy C_MID = colors.HexColor('#2e5fa3') # medium blue C_LIGHT = colors.HexColor('#dce8f8') # pale blue fill C_ACCENT = colors.HexColor('#e8f4e8') # pale green fill C_WARN = colors.HexColor('#fff3cd') # yellow warning C_RED = colors.HexColor('#c0392b') # red C_GREEN = colors.HexColor('#27ae60') # green C_ORANGE = colors.HexColor('#e67e22') # orange C_WHITE = colors.white C_GREY = colors.HexColor('#f5f6fa') # ── document ───────────────────────────────────────────────────────────────── OUTPUT = '/tmp/workspace/surgery-explanation/Surgery_Block_N_Explained.pdf' doc = SimpleDocTemplate( OUTPUT, pagesize=A4, leftMargin=2*cm, rightMargin=2*cm, topMargin=2*cm, bottomMargin=2*cm, title='Surgery Block N – Detailed Explanation', author='Orris AI' ) # ── styles ──────────────────────────────────────────────────────────────────── base = getSampleStyleSheet() def S(name, **kw): return ParagraphStyle(name, **kw) TITLE = S('MyTitle', fontSize=26, leading=32, textColor=C_DARK, fontName='Helvetica-Bold', spaceAfter=6, alignment=TA_CENTER) PTAG = S('PageTag', fontSize=11, leading=14, textColor=C_MID, fontName='Helvetica-Oblique', spaceAfter=4, alignment=TA_CENTER) H1 = S('H1', fontSize=18, leading=24, textColor=C_WHITE, fontName='Helvetica-Bold', spaceAfter=4, spaceBefore=10, backColor=C_DARK, borderPadding=(6,8,6,8)) H2 = S('H2', fontSize=15, leading=20, textColor=C_WHITE, fontName='Helvetica-Bold', spaceAfter=3, spaceBefore=8, backColor=C_MID, borderPadding=(4,6,4,6)) H3 = S('H3', fontSize=13, leading=18, textColor=C_DARK, fontName='Helvetica-Bold', spaceAfter=2, spaceBefore=6) BODY = S('Body', fontSize=12, leading=18, textColor=colors.black, fontName='Helvetica', spaceAfter=6, alignment=TA_JUSTIFY) BULLET = S('Bullet', fontSize=12, leading=18, textColor=colors.black, fontName='Helvetica', spaceAfter=4, leftIndent=20, bulletIndent=6) HOTBOX = S('HotBox', fontSize=12, leading=17, textColor=C_DARK, fontName='Helvetica', spaceAfter=4, leftIndent=10, backColor=C_WARN, borderPadding=(4,6,4,6)) KEYWORD = S('Keyword', fontSize=13, leading=18, textColor=C_RED, fontName='Helvetica-Bold', spaceAfter=4) NOTE = S('Note', fontSize=11, leading=16, textColor=colors.HexColor('#555555'), fontName='Helvetica-Oblique', spaceAfter=4, leftIndent=14) # ── helpers ─────────────────────────────────────────────────────────────────── def sp(h=6): return Spacer(1, h) def hr(): return HRFlowable(width='100%', thickness=1.2, color=C_MID, spaceAfter=6) def page_break(): return PageBreak() def section_header(text): return [Paragraph(text, H1), sp(4)] def sub_header(text): return [Paragraph(text, H2), sp(3)] def body(text): return Paragraph(text, BODY) def bul(text): return Paragraph(f'&#8226; {text}', BULLET) def hot(text): return Paragraph(f'&#128293; <b>HIGH YIELD:</b> {text}', HOTBOX) def kw(text): return Paragraph(text, KEYWORD) def note(text): return Paragraph(f'<i>{text}</i>', NOTE) def page_tag(n, total=49): return Paragraph(f'Page {n} of {total}', PTAG) def two_col_table(rows, col_ratio=(0.35, 0.65), highlight_header=True): W = 17*cm cw = [W*col_ratio[0], W*col_ratio[1]] t = Table(rows, colWidths=cw) style = [ ('BACKGROUND', (0,0), (-1,0), C_DARK), ('TEXTCOLOR', (0,0), (-1,0), C_WHITE), ('FONTNAME', (0,0), (-1,0), 'Helvetica-Bold'), ('FONTSIZE', (0,0), (-1,-1), 11), ('LEADING', (0,0), (-1,-1), 16), ('BACKGROUND', (0,1), (-1,-1), C_GREY), ('ROWBACKGROUNDS', (0,1), (-1,-1), [C_WHITE, C_GREY]), ('GRID', (0,0), (-1,-1), 0.5, colors.HexColor('#bbbbbb')), ('PADDING', (0,0), (-1,-1), 6), ('VALIGN', (0,0), (-1,-1), 'TOP'), ] t.setStyle(TableStyle(style)) return t def multi_col_table(rows, header_bg=C_DARK): W = 17*cm ncols = len(rows[0]) cw = [W/ncols]*ncols t = Table(rows, colWidths=cw) style = [ ('BACKGROUND', (0,0), (-1,0), header_bg), ('TEXTCOLOR', (0,0), (-1,0), C_WHITE), ('FONTNAME', (0,0), (-1,0), 'Helvetica-Bold'), ('FONTSIZE', (0,0), (-1,-1), 10), ('LEADING', (0,0), (-1,-1), 14), ('ROWBACKGROUNDS', (0,1), (-1,-1), [C_WHITE, C_LIGHT]), ('GRID', (0,0), (-1,-1), 0.5, colors.HexColor('#bbbbbb')), ('PADDING', (0,0), (-1,-1), 5), ('VALIGN', (0,0), (-1,-1), 'TOP'), ] t.setStyle(TableStyle(style)) return t # ───────────────────────────────────────────────────────────────────────────── # DIAGRAM HELPERS # ───────────────────────────────────────────────────────────────────────────── def checklist_diagram(): d = Drawing(480, 180) phases = [('SIGN IN', '#27ae60', 50), ('TIME OUT', '#2980b9', 200), ('SIGN OUT', '#8e44ad', 350)] for label, col, x in phases: c = colors.HexColor(col) d.add(Rect(x, 40, 110, 70, fillColor=c, strokeColor=colors.white, strokeWidth=2, rx=8)) d.add(String(x+55, 80, label, fontSize=12, fontName='Helvetica-Bold', fillColor=colors.white, textAnchor='middle')) d.add(String(105, 78, '→', fontSize=22, fontName='Helvetica-Bold', fillColor=colors.HexColor('#555'), textAnchor='middle')) d.add(String(255, 78, '→', fontSize=22, fontName='Helvetica-Bold', fillColor=colors.HexColor('#555'), textAnchor='middle')) subtexts = [ (50, 'Before\nAnesthesia'), (200, 'Before\nIncision'), (350, 'Before Patient\nLeaves OR'), ] for x, txt in subtexts: for i, line in enumerate(txt.split('\n')): d.add(String(x+55, 32-i*13, line, fontSize=9, fontName='Helvetica', fillColor=colors.HexColor('#333'), textAnchor='middle')) d.add(String(240, 160, 'WHO SURGICAL SAFETY CHECKLIST – Three Phases', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def langers_diagram(): d = Drawing(460, 220) d.add(Rect(0, 0, 460, 220, fillColor=C_LIGHT, strokeColor=C_MID, strokeWidth=1)) # body silhouette placeholder d.add(Rect(170, 20, 120, 170, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=1.5, rx=30)) # horizontal lines for y in [80, 110, 140]: d.add(Line(175, y, 285, y, strokeColor=C_MID, strokeWidth=1.5)) # vertical lines for x in [210, 250]: d.add(Line(x, 30, x, 175, strokeColor=colors.HexColor('#e74c3c'), strokeWidth=1.5)) d.add(String(230, 200, "Langer's Lines (Skin Tension Lines)", fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(80, 115, 'Horizontal lines\n→ parallel incisions\nheal better', fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(String(370, 115, 'Vertical cross-\ncutting lines\n→ wider scars', fontSize=9, fontName='Helvetica', fillColor=C_RED, textAnchor='middle')) return d def wound_healing_diagram(): d = Drawing(480, 160) phases = [ ('PRIMARY\nINTENTION', C_GREEN, 20), ('SECONDARY\nINTENTION', C_ORANGE, 175), ('TERTIARY\nINTENTION', C_MID, 330), ] for label, col, x in phases: d.add(Rect(x, 40, 120, 70, fillColor=col, strokeColor=colors.white, strokeWidth=2, rx=6)) for i, line in enumerate(label.split('\n')): d.add(String(x+60, 82-i*14, line, fontSize=11, fontName='Helvetica-Bold', fillColor=colors.white, textAnchor='middle')) subtexts = [ (20, 'Clean wound,\nsurgically closed'), (175, 'Open wound,\ngranulates'), (330, 'Contaminated,\nlater closed'), ] for x, txt in subtexts: for i, line in enumerate(txt.split('\n')): d.add(String(x+60, 32-i*12, line, fontSize=9, fontName='Helvetica', fillColor=colors.HexColor('#333'), textAnchor='middle')) d.add(String(240, 145, 'TYPES OF WOUND HEALING', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def diathermy_diagram(): d = Drawing(480, 180) # Monopolar d.add(Rect(10, 20, 200, 130, fillColor=C_LIGHT, strokeColor=C_MID, strokeWidth=1.5, rx=6)) d.add(String(110, 165, 'MONOPOLAR', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(110, 108, 'Active\nElectrode', fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(Line(80, 100, 80, 50, strokeColor=C_RED, strokeWidth=2)) d.add(String(110, 48, 'Patient Body', fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(Line(80, 50, 140, 50, strokeColor=C_RED, strokeWidth=2)) d.add(Line(140, 50, 140, 30, strokeColor=C_RED, strokeWidth=2)) d.add(String(110, 26, 'Grounding Pad', fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) # Bipolar d.add(Rect(270, 20, 200, 130, fillColor=C_ACCENT, strokeColor=C_GREEN, strokeWidth=1.5, rx=6)) d.add(String(370, 165, 'BIPOLAR', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(370, 90, 'Current only between\ntwo forceps tips\n(safer for pacemakers)', fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 5, 'DIATHERMY MODES COMPARISON', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def laparoscopy_diagram(): d = Drawing(480, 190) d.add(Rect(0, 0, 480, 190, fillColor=C_GREY, strokeColor=C_MID, strokeWidth=1)) # abdomen d.add(Rect(150, 30, 180, 120, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=40)) # trocar ports for x in [170, 215, 265, 310]: d.add(Line(x, 30, x, 5, strokeColor=C_DARK, strokeWidth=3)) d.add(String(x, 0, '▲', fontSize=8, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 175, 'LAPAROSCOPY – CO₂ Pneumoperitoneum via trocars', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 155, 'Max safe pressure: 15 mmHg | Gas: CO₂ (non-combustible, high solubility)', fontSize=9, fontName='Helvetica', fillColor=C_MID, textAnchor='middle')) return d def fluid_diagram(): d = Drawing(480, 170) # RL box d.add(Rect(20, 30, 180, 110, fillColor=colors.HexColor('#d5f5e3'), strokeColor=C_GREEN, strokeWidth=2, rx=8)) d.add(String(110, 155, "RINGER'S LACTATE", fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) items_rl = ['Na⁺ 130 mEq/L', 'Cl⁻ 109 mEq/L', 'K⁺ 4 mEq/L', 'Ca²⁺ 3 mEq/L', 'Lactate 28 mEq/L'] for i, item in enumerate(items_rl): d.add(String(110, 118-i*16, item, fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) # NS box d.add(Rect(280, 30, 180, 110, fillColor=colors.HexColor('#fde8d8'), strokeColor=C_ORANGE, strokeWidth=2, rx=8)) d.add(String(370, 155, 'NORMAL SALINE 0.9%', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) items_ns = ['Na⁺ 154 mEq/L', 'Cl⁻ 154 mEq/L', 'No K⁺', 'No Lactate', '→ Hyperchloremic acidosis'] for i, item in enumerate(items_ns): d.add(String(370, 118-i*16, item, fontSize=9, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 10, 'IV FLUID COMPOSITION COMPARISON', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def eras_diagram(): d = Drawing(480, 170) phases = [ ('PRE-OP', C_MID, 10, ['Min. fasting','Carb loading','Correct anemia','Optimize DM']), ('INTRA-OP', C_GREEN, 175, ['Min. invasive surg.','Euvolemic fluids','Opioid-sparing','Normothermia']), ('POST-OP', C_ORANGE, 340, ['Early feeding','Early mobilize','No NG tubes','Remove drains early']), ] for label, col, x, items in phases: d.add(Rect(x, 20, 130, 130, fillColor=col, strokeColor=colors.white, strokeWidth=2, rx=8)) d.add(String(x+65, 158, label, fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) for i, item in enumerate(items): d.add(String(x+65, 118-i*22, f'• {item}', fontSize=8.5, fontName='Helvetica', fillColor=colors.white, textAnchor='middle')) d.add(String(140, 10, '→', fontSize=18, fillColor=colors.HexColor('#555'), textAnchor='middle')) d.add(String(305, 10, '→', fontSize=18, fillColor=colors.HexColor('#555'), textAnchor='middle')) return d def who_ladder_diagram(): d = Drawing(300, 200) steps = [ ('STEP 3 – SEVERE PAIN', C_RED, 40, 'Morphine / Strong Opioids'), ('STEP 2 – MODERATE', C_ORANGE, 80, 'Tramadol / Weak Opioids'), ('STEP 1 – MILD PAIN', C_GREEN, 120, 'NSAIDs / Paracetamol'), ] widths = [180, 230, 280] for i, (label, col, y, sub) in enumerate(steps): w = widths[i] x = (280-w)//2 + 10 d.add(Rect(x, y, w, 35, fillColor=col, strokeColor=colors.white, strokeWidth=1.5, rx=4)) d.add(String(150, y+22, label, fontSize=9, fontName='Helvetica-Bold', fillColor=colors.white, textAnchor='middle')) d.add(String(150, y+10, sub, fontSize=8, fontName='Helvetica', fillColor=colors.white, textAnchor='middle')) d.add(String(150, 185, 'WHO ANALGESIC LADDER', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def burn_depth_diagram(): d = Drawing(480, 180) layers = [ ('EPIDERMIS', colors.HexColor('#f9dcc4'), 0), ('DERMIS', colors.HexColor('#e8a87c'), 40), ('SUBCUT FAT', colors.HexColor('#f7dc6f'), 80), ('MUSCLE', colors.HexColor('#ec7063'), 120), ] for label, col, y in layers: d.add(Rect(10, y+20, 440, 38, fillColor=col, strokeColor=colors.white, strokeWidth=1)) d.add(String(220, y+42, label, fontSize=9, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) # brackets for label, x, h in [('1st Deg', 460, 38), ('2nd Deg', 475, 78), ('3rd Deg', 490, 140)]: pass # skip side brackets for simplicity d.add(String(240, 170, 'BURN DEPTH LAYERS – Epidermis → Muscle', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) return d def rule_of_nines_diagram(): d = Drawing(400, 220) d.add(Rect(0, 0, 400, 220, fillColor=C_GREY, strokeColor=C_MID, strokeWidth=1)) # body d.add(Rect(150, 60, 100, 120, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=10)) # head d.add(Rect(170, 150, 60, 55, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=20)) # arms d.add(Rect(105, 100, 40, 70, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=8)) d.add(Rect(255, 100, 40, 70, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=8)) # legs d.add(Rect(153, 20, 40, 40, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=6)) d.add(Rect(207, 20, 40, 40, fillColor=colors.HexColor('#f9dcc4'), strokeColor=colors.HexColor('#c8956c'), strokeWidth=2, rx=6)) # labels d.add(String(200, 210, 'RULE OF NINES (Wallace)', fontSize=11, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) labels = [ (200, 172, 'Head & Neck 9%'), (60, 135, 'Arm 9%'), (340, 135, 'Arm 9%'), (200, 115, 'Ant. Trunk 18%'), (200, 85, 'Post. Trunk 18%'), (170, 35, 'Leg 18%'), (230, 35, 'Leg 18%'), (200, 62, 'Perineum 1%'), ] for x, y, lbl in labels: d.add(String(x, y, lbl, fontSize=8, fontName='Helvetica', fillColor=C_DARK, textAnchor='middle')) return d def parkland_diagram(): d = Drawing(480, 130) d.add(Rect(10, 10, 460, 100, fillColor=colors.HexColor('#d5f5e3'), strokeColor=C_GREEN, strokeWidth=2, rx=10)) d.add(String(240, 120, 'PARKLAND FORMULA', fontSize=13, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 90, '4 mL × Body Weight (kg) × % TBSA = Total fluid in first 24 hrs', fontSize=12, fontName='Helvetica-Bold', fillColor=C_DARK, textAnchor='middle')) d.add(String(240, 62, 'First 8 hours → 50% of total volume (count from time of injury)', fontSize=10, fontName='Helvetica', fillColor=C_MID, textAnchor='middle')) d.add(String(240, 42, 'Next 16 hours → remaining 50% | Fluid: Ringer\'s Lactate only', fontSize=10, fontName='Helvetica', fillColor=C_MID, textAnchor='middle')) d.add(String(240, 20, 'Only 2nd and 3rd degree burns included in TBSA calculation', fontSize=9, fontName='Helvetica-Oblique', fillColor=C_DARK, textAnchor='middle')) return d from reportlab.platypus.flowables import Flowable class DiagramFlowable(Flowable): def __init__(self, drawing, caption=''): self.drawing = drawing self.caption = caption self._width = drawing.width self._height = drawing.height + (20 if caption else 0) def wrap(self, *args): return (self._width, self._height) def draw(self): self.drawing.drawOn(self.canv, 0, 20 if self.caption else 0) if self.caption: self.canv.setFont('Helvetica-Oblique', 9) self.canv.setFillColor(colors.HexColor('#555555')) self.canv.drawCentredString(self._width/2, 4, self.caption) def diagram(d, caption=''): return DiagramFlowable(d, caption) # ───────────────────────────────────────────────────────────────────────────── # BUILD STORY # ───────────────────────────────────────────────────────────────────────────── story = [] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 1 – COVER PAGE # ═══════════════════════════════════════════════════════════════════════════ story += [ sp(40), Paragraph('HIGH-YIELD CLINICAL NOTES', TITLE), Paragraph('SURGERY — BLOCK N', TITLE), sp(10), Paragraph('Detailed Explanation with Diagrams', H2), sp(16), body('This document provides a comprehensive, page-by-page explanation of every topic covered ' 'in the Block N Surgery clinical notes. Each concept has been expanded into a detailed ' 'narrative of approximately 1,000 words, with supporting diagrams, summary tables, and ' 'highlighted high-yield examination points drawn from KMU Past Papers.'), sp(8), multi_col_table([ ['PART', 'CONTENT', 'PAGES (Source)'], ['Part I', 'General Surgery & Foundation-III', 'Pages 1–15'], ['Part II', 'Musculoskeletal-III – ERAS & Pain', 'Pages 16–21'], ['Part III', 'Plastic Surgery & Burns', 'Pages 22–35'], ]), sp(16), Paragraph('Prepared by Orris AI | Based on: Block N Surgery Notes by Haroon', NOTE), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 2 – TABLE OF CONTENTS (mirrors PDF page 1/cover) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(1)] story += section_header('TABLE OF CONTENTS & BLUEPRINT') story += [ body('This set of high-yield clinical notes was specifically designed for Final Year MBBS students ' 'preparing for KMU (Khyber Medical University) examinations. The Surgery component of Block N ' 'carries 15 MCQs out of a 120-question paper.'), sp(6), body('The 15 marks are divided as follows: 10 MCQs from Foundation-III (covering patient safety, ' 'consent, incisions, and perioperative care) and 5 MCQs from Musculoskeletal-III (plastic surgery, ' 'burns, and ERAS protocols).'), sp(8), multi_col_table([ ['Section', 'Topic', 'MCQs'], ['Foundation-III', 'Patient Safety, Consent, Incisions, Perioperative Care', '10'], ['Musculo-III', 'Plastic Surgery, Burns, ERAS', '5'], ['Total Block N Surgery', '', '15'], ]), sp(10), body('The notes are organized into three major parts:'), bul('Part I: General Surgery & Foundation-III covers perioperative care, consent, incisions, ' 'wound healing, diathermy, laparoscopy, fluid management, nutrition, and postoperative complications.'), bul('Part II: Musculoskeletal-III focuses on ERAS protocols and perioperative pain assessment and management.'), bul('Part III: Plastic Surgery & Burns covers classification, assessment (TBSA, Parkland formula), ' 'management, and complications of burns.'), sp(8), body('Each section maps directly to a specific KMU Learning Objective (LO), ensuring complete ' 'alignment with the examination syllabus. Past paper references from KMC, AMC, GMC, GKMC, WMC, ' 'RMC, and NWSM are embedded throughout each topic for targeted preparation.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 3 – SECTION 1: WHO CHECKLIST & PATIENT SAFETY (PDF page 2) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(2)] story += section_header('SECTION 1: PATIENT SAFETY, CLINICAL GOVERNANCE & CONSENT') story += sub_header('1. WHO SURGICAL SAFETY CHECKLIST') story += [ body('The World Health Organization (WHO) Surgical Safety Checklist was introduced in 2008 as part of ' 'the "Safe Surgery Saves Lives" campaign. It is now considered the single most effective tool for ' 'reducing preventable perioperative deaths and complications worldwide. The checklist standardizes ' 'communication between the surgeon, anesthesiologist, and nursing staff before, during, and after ' 'every surgical procedure.'), sp(6), diagram(checklist_diagram(), 'WHO Surgical Safety Checklist – Three Time-Sensitive Phases'), sp(8), kw('Primary Purpose:'), body('Improve teamwork and communication among the surgical, anesthetic, and nursing teams. ' 'This is consistently the correct answer in past KMU and KMC papers when asked about the ' 'main objective of the checklist.'), sp(6), kw('Three Phases Explained:'), bul('SIGN IN (Before Anesthesia): The anesthesiologist confirms patient identity, site marking, ' 'consent, equipment functionality, and allergy status.'), bul('TIME OUT (Before Incision): The entire team pauses to verbally confirm patient name, ' 'procedure, surgical site, and antibiotic prophylaxis. This is the most tested phase.'), bul('SIGN OUT (Before Patient Leaves OR): The team confirms the correct count of instruments, ' 'sponges, and needles, reviews any concerns, and ensures specimens are correctly labeled.'), sp(6), hot('TIME OUT occurs between induction of anesthesia and skin incision. [AMC 2024]'), hot('Primary purpose = improve communication and teamwork. [KMC 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 4 – PATIENT SAFETY & CONSENT (PDF page 3) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(3)] story += section_header('PATIENT SAFETY & INFORMED CONSENT') story += sub_header('2. Patient Safety and Error Prevention') story += [ body('Medical errors, particularly those involving patient misidentification, represent a leading cause ' 'of harm in surgical settings. The most important preventive measure is checking the patient\'s ' 'identification bracelet twice before administering any medication or performing any procedure. ' 'This double-check system minimizes wrong-patient and wrong-site errors.'), body('Responsibility for patient safety is not limited to front-line clinicians alone. It is a shared ' 'obligation spanning three tiers: (1) front-line caregivers (nurses, resident doctors), ' '(2) clinical managers (consultants, department heads), and (3) facility executives (hospital ' 'administrators). This culture of shared accountability is central to any robust patient safety system.'), sp(6), hot('Check identification bracelet TWICE before any intervention. [KMC 2024]'), hot('Safety reporting = shared responsibility of front-line staff, managers, and executives. [KMU 2024]'), sp(8), ] story += sub_header('3. Principles of Informed Consent') story += [ body('Informed consent is a cornerstone of surgical ethics and medical law. It is the process by which ' 'a patient is made fully aware of the diagnosis, the proposed procedure, its risks, benefits, and ' 'available alternatives, and then voluntarily agrees to undergo the surgery.'), body('The operating surgeon who will physically perform the procedure bears the primary legal and ' 'ethical responsibility to obtain consent. This cannot be delegated to a junior trainee. The ethical ' 'foundation of consent is the principle of patient autonomy — every competent patient has the right ' 'to accept or refuse treatment.'), two_col_table([ ['SCENARIO', 'CONSENT RULE'], ['Elective surgery (alert patient)', 'Written informed consent by operating surgeon'], ['Emergency — unconscious patient, no surrogate', 'Implied consent — proceed to save life'], ['Sensitive examination (e.g., breast)', 'Explicit verbal consent + female chaperone'], ['Laparoscopic → may convert to open', 'Consent must include conversion risk'], ]), sp(8), hot('Implied consent applies in unconscious patients with life-threatening emergency and no surrogate. [KMC 2024]'), hot('Operating surgeon (not trainee) is responsible for consent. [KMC 2024; WMC 2025]'), hot('Breast exam requires verbal consent AND female chaperone. [NWSM 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 5 – LANGER'S LINES (PDF page 4) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(4)] story += section_header("SECTION 2: SKIN INCISIONS & LANGER'S LINES") story += [ body("A surgical incision must achieve three goals simultaneously: it must provide adequate exposure " "to the target organ, minimize damage to surrounding structures, and heal with the least possible " "scarring. Understanding skin anatomy is fundamental to achieving all three goals."), sp(6), diagram(langers_diagram(), "Langer's Lines — Incisions parallel to these lines heal with minimal scarring"), sp(8), kw("Langer's Lines (Skin Cleavage Lines):"), body("First described by anatomist Karl Langer in 1861, these lines represent the predominant " "orientation of collagen fibers in the dermis. In the trunk, they run horizontally. Around joints, " "they run parallel to the joint crease. On the face, they correspond to the natural wrinkle lines."), body("When a surgeon makes an incision parallel to Langer's lines, the collagen fibers are minimally " "disrupted. The wound edges come together naturally under less tension, resulting in a fine, " "linear, cosmetically acceptable scar. When the incision crosses these lines perpendicularly, " "the underlying muscle forces continuously pull the wound edges apart, leading to wider, " "hypertrophic, or even keloid scars."), sp(6), hot("Incisions parallel to Langer's lines → narrow scars. Perpendicular → wide hypertrophic scars. [KMU 2024]"), sp(6), kw('General Principles of Incision Planning:'), bul('Exposure: The incision must give the surgeon safe, direct access to the operative field.'), bul('Extensibility: Can be lengthened quickly if unexpected findings require wider access.'), bul('Nerve and Vessel Preservation: Incisions run parallel to major neurovascular bundles.'), bul('Muscle-Splitting vs Muscle-Cutting: Splitting along fiber direction is always preferred.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 6 – TYPES OF ABDOMINAL INCISIONS (PDF page 5) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(5)] story += section_header('TYPES OF ABDOMINAL INCISIONS') story += [ body('Choosing the right abdominal incision is one of the first decisions a surgeon makes before ' 'any operation. The choice depends on the urgency of the surgery, the patient\'s body habitus, ' 'the organ being accessed, and whether there are previous surgical scars.'), sp(6), multi_col_table([ ['INCISION', 'DIRECTION & SITE', 'PRIMARY USE', 'KEY POINT'], ['Midline', 'Vertical, linea alba', 'Emergency/Trauma', 'Fastest; highest hernia risk'], ['Paramedian', 'Vertical, 2-5cm lateral', 'Cholecystectomy', 'Rectus acts as shutter'], ['Kocher\'s', 'Oblique, subcostal', 'Gallbladder/Liver', 'Muscle-cutting, painful'], ['Gridiron', 'Oblique, RIF', 'Appendectomy', 'Muscle-splitting, low hernia'], ['Lanz', 'Transverse, RIF', 'Appendectomy', 'Better cosmetics'], ['Pfannenstiel', 'Transverse, suprapubic', 'C-Section/Gynae', 'Cosmetically hidden, strong'], ]), sp(8), kw('Midline (Laparotomy) – The Most Important Incision:'), body('Made directly through the linea alba, which is relatively avascular fascia running between ' 'the two rectus muscles. This makes the incision very fast with minimal bleeding. It can be ' 'extended from the xiphoid process to the pubic symphysis in minutes, making it the incision ' 'of choice in emergency and trauma settings. However, because the linea alba has a poor blood ' 'supply, healing is slow and the risk of incisional hernia and wound dehiscence is the highest ' 'of all abdominal incisions.'), sp(4), hot('Midline incision = fastest access; highest risk of hernia and dehiscence. [KMU 2024]'), sp(4), kw('Kocher\'s (Subcostal) Incision:'), body('A muscle-cutting incision placed 2–5 cm below the costal margin, typically on the right. ' 'It provides excellent exposure to the gallbladder, common bile duct, and right lobe of the liver. ' 'The left-sided version accesses the spleen. The major drawback is postoperative pain because ' 'cutting through the rectus abdominis and intercostal nerves causes painful breathing and ' 'impaired respiratory function.'), sp(4), kw('Pfannenstiel Incision:'), body('A slightly curved transverse incision placed 2–3 cm above the pubic symphysis. It follows ' 'Langer\'s lines and is concealed by the pubic hairline, making it cosmetically ideal for ' 'caesarean sections and pelvic surgery. The closure is extremely strong because the transverse ' 'orientation resists abdominal wall forces.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 7 – SURGICAL POSITIONS + SECTION 3 INTRO (PDF page 6) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(6)] story += section_header("SURGICAL POSITIONS & SECTION 3: WOUND HEALING") story += sub_header("Surgical Positions") story += [ body('Patient positioning must be carefully planned before every operation. The ideal position ' 'maximizes surgical exposure while protecting the patient from pressure injuries, nerve ' 'compression, and vascular compromise. Positioning is a team responsibility shared between ' 'the surgeon, anesthesiologist, and scrub nurse.'), two_col_table([ ['POSITION', 'USED FOR'], ["Rose's Position (neck hyperextension)", 'Thyroidectomy — exposes anterior neck'], ['Lithotomy', 'Perineal, colorectal, gynecological procedures'], ['Lateral decubitus', 'Kidney, thoracic, hip procedures'], ['Lloyd-Davies', 'Combined abdominoperineal procedures'], ['Trendelenburg', 'Pelvic laparoscopy — bowel falls away'], ['Reverse Trendelenburg', 'Upper GI laparoscopy'], ]), sp(6), hot("Rose's position = neck hyperextension for thyroidectomy. [GKMC 2024]"), sp(10), ] story += sub_header('SECTION 3: WOUND HEALING – Primary, Secondary, Tertiary Intention') story += [ diagram(wound_healing_diagram(), 'Three Types of Wound Healing'), sp(8), body('Wound healing follows one of three pathways, each chosen based on the level of contamination, ' 'tissue loss, and risk of infection. Understanding these mechanisms is essential for every surgeon.'), bul('Primary Intention: Wounds with minimal tissue loss and clean edges that are surgically closed ' 'immediately (e.g., excision biopsy closed with Prolene sutures). Healing is fast, with minimal ' 'scar formation.'), bul('Secondary Intention: Infected or highly contaminated wounds, or those with extensive tissue loss, ' 'are left open. The body fills the defect with granulation tissue through wound contraction. ' 'The resulting scar is wider and less aesthetic.'), bul('Tertiary Intention (Delayed Primary Closure): Used for contaminated wounds such as skin and ' 'subcutaneous tissue left open after bowel injury surgery. Once the infection risk subsides ' '(typically 3–5 days), the wound is surgically closed.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 8 – WOUND HEALING DETAILS + SUTURES (PDF page 7) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(7)] story += section_header('WOUND HEALING: CELLULAR DYNAMICS, SUTURES & DRAINS') story += [ kw('Cellular Sequence in Wound Healing:'), body('In the first 24–48 hours after injury, neutrophils predominate in the wound, acting as the first ' 'line of defense by phagocytosing bacteria and debris. By day 2–3, macrophages become the dominant ' 'cell type. Macrophages are the "master regulators" of wound healing — they coordinate further ' 'debridement, release growth factors (e.g., PDGF, TGF-β), and direct fibroblast activity. ' 'Without adequate macrophage function (e.g., in corticosteroid use), healing is significantly impaired.'), hot('By day 2 after primary closure, macrophages replace neutrophils as dominant cells. [KMC 2024]'), sp(6), kw('Factors That Impair Wound Healing:'), two_col_table([ ['FACTOR', 'MECHANISM'], ['Local infection (most common local factor)', 'Bacteria compete for oxygen, release proteases'], ['Diabetes mellitus', 'Impaired leukocyte function, microangiopathy'], ['Malnutrition', 'Inadequate collagen synthesis (needs Vitamin C)'], ['Corticosteroids', 'Suppress macrophage and fibroblast activity'], ['Poor blood supply / ischemia', 'Inadequate oxygen delivery to healing tissue'], ['Radiation', 'Destroys fibroblasts and microvasculature'], ]), sp(8), ] story += sub_header('Suture Materials & Techniques') story += [ body('Suture selection depends on the tissue being closed, whether absorbable material is required, ' 'and the expected duration of wound support needed.'), bul('Vicryl (Polyglactin 910): A synthetic braided absorbable suture. It undergoes hydrolytic ' 'degradation and is completely absorbed within 60–90 days. Suitable for internal layers.'), bul('Vertical Mattress Suture: The preferred technique for closing laparotomy wounds in obese ' 'patients. It distributes tension widely across the wound and everts the edges for optimal healing.'), hot('Vicryl is completely absorbed by hydrolysis within 60–90 days. [GKMC 2024]'), hot('Vertical mattress suture ensures edge eversion in laparotomy closures. [KMC 2024]'), sp(6), kw('Drain Management:'), body('Surgical drains prevent fluid accumulation in dead spaces. A Redivac (closed suction drain) ' 'after paraumbilical hernia repair is removed at 24 hours or when output is minimal. ' 'Active bleeding into a drain post-cholecystectomy causing Hb drop to 7 g/dL requires ' 'surgical re-exploration — this is a Clavien-Dindo Grade III complication.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 9 – DIATHERMY (PDF page 8–9) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(8)] story += section_header('SURGICAL DIATHERMY (ELECTROSURGERY)') story += [ body('Diathermy (electrosurgery) uses high-frequency alternating electrical current (typically ' '300 kHz – 3 MHz) to generate localized heat within tissues. The heat either cuts tissue by ' 'vaporizing cell water (cutting mode) or coagulates blood vessels by denaturing proteins ' '(coagulation mode). It is one of the most used surgical tools in any operating theater.'), sp(6), diagram(diathermy_diagram(), 'Monopolar vs Bipolar Diathermy – Circuit Comparison'), sp(8), kw('Monopolar Diathermy:'), body('In monopolar diathermy, the electrical current originates from the active electrode (held by ' 'the surgeon), passes through the entire patient\'s body, and returns to the generator via a ' 'large dispersive grounding pad attached to the patient\'s thigh. Because the current travels ' 'through the whole body, it poses risks near metallic implants (current can arc to metal) and ' 'cardiac pacemakers or ICDs (current can interfere with sensing and cause arrhythmias or ' 'device malfunction).'), hot('Monopolar diathermy is CONTRAINDICATED in patients with cardiac pacemakers or metallic implants. [GMC 2024]'), sp(6), kw('Bipolar Diathermy:'), body('In bipolar diathermy, the current flows only between the two tips of a special bipolar forceps ' 'instrument. It never passes through the patient\'s body. This makes it the SAFE choice for ' 'patients with pacemakers, ICDs, cochlear implants, or any metallic implant. It is also used ' 'in neurosurgery and delicate procedures near nerves.'), hot('Bipolar diathermy is SAFE in patients with cardiac pacemakers. [RMC 2025]'), sp(6), two_col_table([ ['FEATURE', 'MONOPOLAR vs BIPOLAR'], ['Circuit', 'Active electrode → body → grounding pad'], ['Bipolar circuit', 'Between two forceps tips only'], ['Risk', 'Arcing to metal/pacemaker interference'], ['Bipolar risk', 'Minimal — current stays local'], ['Use', 'Most general surgical cutting/coagulation'], ['Bipolar use', 'Pacemaker patients, neuro, delicate tissue'], ]), sp(6), kw('Physical Principles of Diagnostic Modalities:'), bul('X-rays decrease in intensity as they pass through matter due to absorption and scattering.'), bul('CT scan delivers significantly more radiation than plain X-ray or bone scans. [WMC 2025]'), bul('Ultrasound is generated by a piezoelectric crystal that vibrates when an electrical current is applied.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 10 – SECTION 4: LAPAROSCOPY (PDF pages 12–14) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(9)] story += section_header('SECTION 4: LAPAROSCOPIC & ROBOTIC SURGERY') story += [ body('Laparoscopic (minimally invasive) surgery uses a camera (laparoscope) and long thin instruments ' 'inserted through small ports (trocars) in the abdominal wall, rather than a large open incision. ' 'The abdomen is first inflated with gas to create a working space — a technique called ' 'pneumoperitoneum.'), sp(6), diagram(laparoscopy_diagram(), 'Laparoscopy Setup — CO₂ insufflation through trocars'), sp(8), kw('Why CO₂ for Pneumoperitoneum?'), body('Carbon dioxide is universally chosen because: (1) it is non-combustible, meaning diathermy ' 'can be safely used without risk of explosion; (2) it is highly soluble in blood, so any gas ' 'accidentally embolized into a blood vessel dissolves rapidly, preventing fatal gas embolism. ' 'The maximum safe working pressure is 15 mmHg (maintained between 12–15 mmHg) to avoid ' 'compressing the inferior vena cava and compromising venous return.'), hot('CO₂ is the gas of choice — non-combustible + highly soluble in blood. [WMC 2024]'), hot('Maximum safe insufflation pressure = 15 mmHg. [WMC 2025]'), sp(6), kw('Advantages vs Disadvantages:'), two_col_table([ ['ADVANTAGES', 'DISADVANTAGES'], ['Less tissue trauma, smaller wounds', 'Loss of haptic (touch) feedback'], ['Shorter hospital stay', 'Limited range of instrument motion'], ['Faster recovery, better cosmesis', 'Steep learning curve'], ['Less postoperative pain', 'Risk of port-site complications'], ], col_ratio=(0.5,0.5)), sp(6), kw('Absolute Contraindication:'), body('Uncontrolled coagulopathy is an absolute contraindication to elective laparoscopy. ' 'Trocar insertion without reliable hemostasis risks uncontrollable hemorrhage.'), sp(4), kw('Vagal Bradycardia:'), body('Rapid CO₂ insufflation stretches the parietal peritoneum, triggering vagal stretch receptors ' 'and causing reflex bradycardia or sinus arrest. Management: immediate desufflation and ' 'IV atropine if persistent.'), hot('Uncontrolled bleeding during laparoscopy → immediate conversion to open surgery. [NWSM 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 11 – TOP MCQ SUMMARY (PDF page 14-15) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(10)] story += section_header('SECTIONS 1–4: HIGH-YIELD MCQ SUMMARY') story += [ body('This page consolidates the most frequently examined points from Sections 1–4, with the source ' 'institution and year attached to each fact. Use this as a rapid revision checklist.'), sp(6), multi_col_table([ ['#', 'HIGH-YIELD FACT', 'SOURCE'], ['1', 'WHO Checklist purpose = improve communication & teamwork', 'KMC 2024'], ['2', 'TIME OUT phase = between anesthesia induction and skin incision', 'AMC 2024'], ['3', 'Safety reporting = shared: front-line, managers, executives', 'KMU 2024'], ['4', 'Medication error prevention = check ID bracelet TWICE', 'KMC 2024'], ['5', 'Consent obligation = operating surgeon, not trainee', 'KMC 2024, WMC 2025'], ['6', "Incisions parallel to Langer's lines = narrow scar", 'KMU 2024'], ['7', 'Midline incision = fastest; highest hernia/dehiscence risk', 'KMU 2024'], ['8', "Rose's position (neck hyperextension) = thyroidectomy", 'GKMC 2024'], ['9', 'By day 2 post-injury: macrophages dominate wound', 'KMC 2024'], ['10', 'Local infection = most common LOCAL cause of impaired healing', 'RMC 2025'], ['11', 'Vicryl completely absorbed in 60–90 days (hydrolysis)', 'GKMC 2024'], ['12', 'Monopolar diathermy: contraindicated with pacemakers', 'GMC 2024'], ['13', 'Bipolar diathermy: safe for pacemakers (current stays local)', 'RMC 2025'], ['14', 'CO₂ pneumoperitoneum: max pressure 15 mmHg', 'WMC 2025'], ['15', 'CO₂ = non-combustible + highly soluble in blood', 'WMC 2024'], ['16', 'Uncontrolled coagulopathy = absolute contraindication to laparoscopy', 'GMC 2024'], ['17', 'Uncontrollable laparoscopic bleeding → convert to open immediately', 'NWSM 2024'], ['18', 'Robotic surgery = most advanced minimally invasive technology', 'AMC 2024'], ]), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 12 – SECTION 5: INFORMED CONSENT (PDF pages 16–17) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(11)] story += section_header('SECTION 5: SURGICAL INFORMED CONSENT — DETAILED') story += [ body('Informed consent is not merely a signature on a form — it is a communication process. ' 'The courts and medical ethics boards evaluate whether the patient was genuinely informed, ' 'understood the information, and voluntarily agreed without coercion. A consent form signed ' 'without proper explanation is legally invalid.'), sp(6), kw('Elements That Must Be Communicated:'), bul('Diagnosis and current clinical status'), bul('Nature and technique of the proposed operation'), bul('Expected benefits of proceeding with surgery'), bul('Risks and complications (common AND serious/rare)'), bul('Alternatives to surgery (including no treatment)'), bul('What will happen if the patient declines'), sp(6), two_col_table([ ['PRINCIPLE', 'DETAIL'], ['Who obtains consent?', 'The operating surgeon (not a junior doctor or nurse)'], ['Ethical basis', 'Respect for patient autonomy and self-determination'], ['Competency required', 'Patient must understand, retain, and decide freely'], ['Consent for laparoscopy', 'Must include possible conversion to open surgery'], ['Emergency exception', 'Implied consent if unconscious, life-threatening, no surrogate'], ['Mental incapacity', 'Next-of-kin or legal guardian provides proxy consent'], ]), sp(8), kw('Implied Consent in Emergencies:'), body('When a patient arrives unconscious with a life-threatening injury and no family member or ' 'legal representative is available, the law implies that a reasonable person in that situation ' 'would consent to life-saving intervention. Surgeons can (and must) operate without written ' 'consent in a true emergency. The event must be thoroughly documented in the medical record.'), sp(4), kw('Special Surgical Scenario:'), body('If a patient consents for laparoscopic cholecystectomy but intraoperative bleeding or ' 'unclear anatomy makes safe completion impossible laparoscopically, the surgeon must convert ' 'to open surgery. This is why consent for laparoscopic procedures must always explicitly ' 'include the possibility of open conversion.'), hot('Consent for laparoscopic surgery MUST cover possible conversion to open. [GMC 2024]'), hot('Ethical basis of consent = AUTONOMY. [AMC 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 13 – SECTION 6: FLUID & ELECTROLYTES (PDF pages 18–20) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(12)] story += section_header('SECTION 6: PERIOPERATIVE FLUID & ELECTROLYTE THERAPY') story += [ body('Fluid management is one of the most critical and examined aspects of perioperative care. ' 'Both under-resuscitation and over-resuscitation carry serious consequences. The goal is to ' 'maintain normovolemia, adequate organ perfusion, and electrolyte homeostasis throughout ' 'the entire surgical episode.'), sp(6), diagram(fluid_diagram(), "Ringer's Lactate vs Normal Saline — Composition Comparison"), sp(8), kw('Extracellular Fluid (ECF) Deficit:'), body('The most common perioperative fluid disorder is ECF deficit, resulting from preoperative ' 'fasting, blood loss, GI fluid losses (vomiting, diarrhea, NG suction), and third-space ' 'sequestration into inflamed tissues.'), kw("Ringer's Lactate (Balanced Crystalloid):"), body("The preferred resuscitation fluid for hemorrhagic shock, severe dehydration, and major burns. " "Its electrolyte composition closely mimics extracellular fluid. The lactate component is " "metabolized by the liver to bicarbonate, providing mild alkalinizing effect and helping " "correct metabolic acidosis. It contains 4 mEq/L potassium, unlike normal saline."), hot("Ringer's Lactate is the FIRST-LINE resuscitation fluid for shock, burns, and dehydration. [RMC 2025; KMU 2025]"), sp(6), kw('Normal Saline (0.9% NaCl):'), body('Contains 154 mEq/L each of sodium and chloride — significantly more chloride than plasma. ' 'Large-volume infusion causes hyperchloremic (normal anion gap) metabolic acidosis by diluting ' 'bicarbonate and excess chloride inhibiting renal bicarbonate reabsorption.'), hot('Large volumes of Normal Saline cause HYPERCHLOREMIC METABOLIC ACIDOSIS. [GMC 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 14 – ELECTROLYTE DISORDERS (PDF pages 19–21) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(13)] story += section_header('ELECTROLYTE DISORDERS IN SURGICAL PATIENTS') story += [ two_col_table([ ['DISORDER', 'CAUSE, FEATURES & MANAGEMENT'], ['Hyperchloremic Metabolic Acidosis (normal AG)', 'Large-volume normal saline; correct with balanced crystalloids'], ['Metabolic Alkalosis', 'NG suction, persistent vomiting → HCl loss; hypokalemia, hypochloremia'], ['Postoperative Hyponatremia (SIADH)', 'Surgical stress → excess ADH; manage stable asymptomatic cases with FLUID RESTRICTION'], ['Hyperkalemia with peaked T-waves', 'Peaked T-waves, widened QRS → give IV 10% Calcium Gluconate IMMEDIATELY'], ]), sp(6), kw('Hyperkalemia — Understanding the ECG and Treatment:'), body('Hyperkalemia causes progressive ECG changes as serum potassium rises: first, tall peaked ' 'T-waves appear; then the PR interval lengthens; next, the P-wave flattens and disappears; ' 'finally, the QRS widens into a "sine wave" pattern, and ventricular fibrillation can follow. ' 'When a patient has peaked T-waves and widened QRS, the immediate priority is cardiac ' 'membrane stabilization.'), body('IV 10% Calcium Gluconate is given immediately (over 2–3 minutes) for this purpose. ' 'Crucially, calcium gluconate does NOT lower serum potassium — it only stabilizes the ' 'myocardial membrane. To actually lower potassium, additional treatments are used: ' 'insulin + dextrose (shifts K⁺ into cells), sodium bicarbonate, salbutamol nebulizers, ' 'or calcium resonium (resin).'), hot('IV Calcium Gluconate stabilizes myocardium in hyperkalemia WITHOUT lowering serum K⁺. [RMC 2024; KMU 2024/2025]'), sp(6), kw('Severe Diarrhea → Normal Anion Gap Metabolic Acidosis:'), body('Intestinal fluid is rich in bicarbonate. Massive diarrhea causes bicarbonate loss, and the ' 'kidneys compensate by retaining chloride, producing a hyperchloremic (normal anion gap) ' 'metabolic acidosis.'), sp(4), kw('Postoperative Metabolic Alkalosis:'), body('The most common cause is prolonged nasogastric suction or persistent vomiting. Both cause ' 'loss of hydrochloric acid (HCl) from the stomach. The resulting chloride depletion prevents ' 'the kidneys from excreting bicarbonate, and concurrent hypokalemia worsens the alkalosis ' 'through transcellular ion exchange.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 15 – SECTION 7: NUTRITION (PDF pages 22–24) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(14)] story += section_header('SECTION 7: NUTRITIONAL SUPPORT IN SURGICAL PATIENTS') story += [ body('Adequate nutritional support is a critical component of postoperative recovery. Malnutrition ' 'impairs wound healing, weakens immune defenses, prolongs hospital stay, and increases ' 'complication rates. The general principle is: use the gut whenever possible.'), sp(6), kw('1. Enteral Nutrition (EN):'), body('Enteral feeding through the gastrointestinal tract preserves gut mucosal integrity and ' 'prevents bacterial translocation from the bowel into the bloodstream (a cause of sepsis). ' 'It also maintains the normal gut microbiome and stimulates normal digestive hormone release. ' 'It is cheaper, safer, and more physiological than parenteral nutrition.'), two_col_table([ ['ROUTE', 'INDICATION'], ['Nasogastric tube', 'Normal esophagus, short-term feeding'], ['Feeding Jejunostomy', 'Corrosive esophageal burns, obstructing esophageal carcinoma'], ['Percutaneous Endoscopic Gastrostomy (PEG)', 'Long-term feeding, neurological dysphagia'], ]), sp(4), hot('Feeding jejunostomy is preferred in corrosive esophageal burns (NG tube risks perforation). [GMC 2025; KMU 2023]'), hot('Contraindications to EN: active severe GI bleeding, high-output proximal fistula. [NWSM 2024; KMU 2025]'), sp(6), kw('2. Total Parenteral Nutrition (TPN):'), body('TPN delivers all macronutrients intravenously through a central venous catheter (CVC). ' 'It is indicated only when the GI tract is non-functional, inaccessible, or requires complete rest.'), bul('Typical TPN formula: 70% Dextrose + 10% Amino acids + 20% Lipid emulsion'), bul('Daily monitoring: CBC, serum urea, electrolytes'), bul('Absolute contraindication: Active uncontrolled sepsis (infection spreads along the CVC)'), hot('Active sepsis is an ABSOLUTE contraindication to TPN. [KMU 2023]'), sp(4), kw('Complications:'), bul('Pneumothorax after CVC insertion → sudden dyspnea + chest pain → confirm with CXR'), bul('Refeeding Syndrome: Hypophosphatemia + hypokalemia + hypomagnesemia after feeding starved patients too quickly'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 16 – SECTION 8: POSTOPERATIVE CARE (PDF pages 25–29) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(15)] story += section_header('SECTION 8: POSTOPERATIVE CARE & COMPLICATIONS') story += [ body('The postoperative period begins when the patient leaves the operating theater and continues ' 'until full recovery. It is broadly divided into immediate (first 24 hours), early (24 hours ' 'to 2 weeks), and late (>2 weeks) phases. Complications must be recognized and treated early.'), sp(6), kw('Predicting Perioperative Outcome:'), body('In elderly patients, the single best predictor of perioperative outcome is functional status, ' 'measured in metabolic equivalents (METs). A patient who can climb two flights of stairs or walk ' 'briskly has adequate cardiopulmonary reserve for most operations.'), hot('Functional status (METs) = best predictor of perioperative outcome in elderly. [KMC 2024]'), sp(6), kw('Fever Timeline After Surgery:'), two_col_table([ ['TIMING', 'MOST LIKELY CAUSE'], ['0–24 hours', 'ATELECTASIS (most common) — microatelectasis from general anesthesia'], ['Day 2–3', 'Pulmonary infection / pneumonia'], ['Day 3–5', 'Urinary tract infection (UTI)'], ['Day 5–7', 'Wound infection (surgical site infection)'], ['Day 7–10', 'Deep vein thrombosis (DVT)'], ['Any time', 'Drug reaction'], ]), sp(4), hot('Fever in first 24 hours post-op = ATELECTASIS. [KMU 2025]'), sp(6), kw('Paralytic Ileus:'), body('Temporary cessation of bowel peristalsis following abdominal surgery, caused by surgical ' 'handling of the bowel, opioid analgesics, electrolyte disturbances (especially hypokalemia), ' 'and peritoneal inflammation. Presents with abdominal distension, absent bowel sounds, ' 'and vomiting. Imaging shows diffusely dilated bowel loops without a transition point.'), body('Management: Nil by mouth (NPO), nasogastric decompression, IV fluids, and electrolyte ' 'replacement (especially potassium correction). ERAS protocols minimize ileus by avoiding ' 'opioids, encouraging early mobilization, and promoting early oral feeding.'), hot('Paralytic ileus management = NPO + NG decompression + IV fluids + electrolyte correction. [GMC 2024]'), sp(4), hot('Reactionary hemorrhage: within 24 hours (classically 4–6 hours) post-op. [WMC 2024]'), hot('First investigation for suspected postoperative internal bleeding = bedside FAST scan. [WMC 2024]'), hot('Protamine sulfate reverses heparin. Neurogenic shock = hypotension + bradycardia. [RMC 2025]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 17 – SECTION 9: ERAS (PDF pages 30–31) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(16)] story += section_header('SECTION 9: ENHANCED RECOVERY AFTER SURGERY (ERAS)') story += [ body('ERAS is a multimodal, evidence-based perioperative care pathway developed to minimize the ' 'surgical stress response, maintain normal physiology, reduce complications, and accelerate ' 'patient recovery. It was pioneered by Henrik Kehlet in colorectal surgery and has since been ' 'adopted across virtually all surgical specialties.'), sp(6), diagram(eras_diagram(), 'ERAS Protocol — Preoperative, Intraoperative, and Postoperative Components'), sp(8), kw('Preoperative Phase — Key Points:'), bul('Solids allowed up to 6 hours before anesthesia (not midnight NPO)'), bul('Clear fluids allowed up to 2 hours before surgery'), bul('Carbohydrate loading: clear carb-rich drinks up to 2 hours pre-op reduce insulin resistance'), bul('Local guideline: max clear fluid NPO period is 4 hours before elective surgery'), sp(6), kw('Intraoperative Phase — Key Points:'), bul('Prefer minimally invasive (laparoscopic/robotic) surgery whenever feasible'), bul('Goal-directed fluid therapy to maintain euvolemia (neither over- nor under-hydrated)'), bul('Opioid-sparing multimodal analgesia: regional blocks + NSAIDs + paracetamol'), bul('Maintain normothermia throughout surgery to prevent coagulopathy and infection'), sp(6), kw('Postoperative Phase — Key Points:'), bul('Early oral feeding as soon as clinically safe (even on day of surgery for minor procedures)'), bul('Early mobilization — get the patient out of bed within hours of surgery'), bul('Avoid routine nasogastric tubes, urinary catheters, and surgical drains'), bul('Multimodal analgesia to minimize opioid use and their ileus-inducing effects'), sp(6), hot('Cornerstones of ERAS = early feeding + early mobilization. [GMC 2025]'), hot('ERAS avoids prolonged fasting — no >6-hour fast. [KMU 2023]'), hot('Carbohydrate loading reduces postoperative insulin resistance. [KMU 2025]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 18 – SECTION 10: PAIN MANAGEMENT (PDF pages 32–35) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(17)] story += section_header('SECTION 10: PERIOPERATIVE PAIN ASSESSMENT & MANAGEMENT') story += [ body('Inadequately treated postoperative pain is not only inhumane — it has measurable adverse ' 'physiological consequences that worsen patient outcomes and prolong hospital stay.'), sp(6), kw('Pathophysiological Consequences of Poorly Controlled Pain:'), two_col_table([ ['SYSTEM', 'CONSEQUENCE'], ['Cardiovascular', 'Hypertension, tachycardia, ↑myocardial O₂ demand, risk of MI'], ['Respiratory', 'Splinting, shallow breathing, atelectasis, hypoxemia, pneumonia'], ['GI', 'Reduced gut motility, prolonged ileus'], ['Metabolic', 'Hyperglycemia, catabolic state (↑cortisol, catecholamines)'], ['Endocrine', 'HPA axis activation → cortisol surge; sympathetic activation → catecholamines'], ]), sp(6), hot('Postoperative pain activates HPA axis and sympathetic system → ↑catecholamines + cortisol. [AMC 2024]'), sp(8), ] story += sub_header('WHO Analgesic Ladder') story += [ diagram(who_ladder_diagram(), 'WHO Analgesic Ladder — Step-wise pain management'), sp(6), bul('Step 1 (Mild pain): NSAIDs + Paracetamol'), bul('Step 2 (Moderate pain): Tramadol — weak µ-opioid agonist + serotonin/noradrenaline reuptake inhibitor'), bul('Step 3 (Severe pain): Morphine — strong µ-opioid agonist; used for severe metastatic bone pain'), sp(6), hot('Tramadol = weak µ-opioid agonist + SNRI mechanism. [KMU 2025]'), hot('Severe bone pain from metastatic cancer = Morphine. [WMC 2024]'), sp(6), kw('Neuropathic Pain:'), body('Burning, shooting, or tingling pain from nerve damage (e.g., post-amputation, tumor invasion) ' 'responds poorly to opioids. First-line adjuvants are Pregabalin or Gabapentin (calcium channel ' 'α2δ ligands). Methotrexate-induced mucositis (stomatitis) is managed by increasing folic acid.'), hot('Neuropathic pain first-line = Pregabalin or Gabapentin. [GMC 2024]'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 19 – SECTION 11: BURNS CLASSIFICATION (PDF pages 36–39) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(18)] story += section_header('SECTION 11: CLASSIFICATION OF BURNS') story += [ body('Burns are classified primarily by the depth of tissue destruction (degree of burn) and the ' 'extent of body surface area involved (TBSA). Both parameters determine treatment intensity, ' 'fluid requirements, and prognosis.'), sp(6), diagram(burn_depth_diagram(), 'Burns penetrate through layers: Epidermis → Dermis → Subcutaneous → Muscle'), sp(8), multi_col_table([ ['DEGREE', 'LAYERS INVOLVED', 'APPEARANCE', 'SENSATION', 'HEALING'], ['1st (Superficial)', 'Epidermis only', 'Red, dry, no blisters', 'PAINFUL', '3–5 days, no scar'], ['2nd Superficial (Partial-thickness)', 'Epidermis + papillary dermis', 'Blisters, moist, pink', 'VERY PAINFUL', '14–21 days'], ['2nd Deep (Partial-thickness)', 'Epidermis + reticular dermis', 'Pale, reduced sensation', 'Reduced', '>21 days, scar risk'], ['3rd (Full-thickness)', 'Entire dermis ± subcutaneous', 'White/brown/black, leathery', 'PAINLESS', 'No self-healing — needs graft'], ]), sp(8), kw('First-Degree Burns:'), body('Involve only the superficial epidermis. Typical example: sunburn. Presents with erythema, ' 'warmth, and pain. No blisters form because the dermis is intact. Heals spontaneously in ' '3–5 days with minimal treatment. First-degree burns are NOT included in TBSA calculations ' 'for fluid resuscitation (they are too superficial).'), hot('First-degree burns: no blisters, painful, epidermis only. [NWSM 2024]'), sp(4), kw('Third-Degree (Full-Thickness) Burns:'), body('Complete destruction of both epidermis and dermis, often extending into subcutaneous fat, ' 'muscle, or bone. The wound appears dry, white, brown, or charred black with a leathery ' 'consistency (eschar). Because all cutaneous nerve endings are destroyed, these burns are ' 'completely painless (insensate). They cannot heal without surgery.'), hot('3rd-degree burns = painless (nerve endings destroyed). Leathery, white/charred appearance. [GMC 2024; KMU 2023]'), sp(4), kw('Dynamic Nature:'), body('Burn wounds evolve over 3–5 days. The zone of stasis surrounding the central zone of ' 'coagulation may progress to irreversible necrosis if perfusion is not maintained. Final burn ' 'depth assessment often requires 3–5 days of observation.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 20 – SECTION 12: TBSA & FLUID (PDF pages 39–42) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(19)] story += section_header('SECTION 12: BURN ASSESSMENT — TBSA & FLUID RESUSCITATION') story += [ kw('TBSA Calculation Methods:'), two_col_table([ ['METHOD', 'USED FOR & KEY FACTS'], ['Wallace Rule of Nines (Adults)', 'Head/neck 9%, each arm 9%, ant.trunk 18%, post.trunk 18%, each leg 18%, perineum 1%'], ['Lund & Browder Chart (Children)', 'Most ACCURATE for children; adjusts for age-related body proportions'], ["Patient's Palm Rule", 'Palm + fingers = ~1% TBSA; useful for scattered or irregular burns'], ]), sp(6), diagram(rule_of_nines_diagram(), 'Wallace Rule of Nines — Adult TBSA Estimation'), sp(8), hot("Lund & Browder = most accurate for children (adjusts for age). [GMC 2024]"), hot("Rule of Nines used for adults: head 9%, each arm 9%, each leg 18%. [KMU 2025]"), sp(6), kw('Parkland Formula:'), diagram(parkland_diagram(), 'Parkland Formula for Burn Fluid Resuscitation'), sp(6), body('The Parkland formula calculates total fluid required in the first 24 hours after a burn. ' 'Only second- and third-degree burns are included in the TBSA calculation — first-degree ' 'burns are excluded. The clock starts from the TIME OF INJURY, not hospital arrival. ' 'If a patient arrives 3 hours after injury, the first 8-hour aliquot must be given in ' 'the remaining 5 hours.'), sp(4), kw('Example Calculation:'), body('80 kg adult with 50% TBSA burns: 4 × 80 × 50 = 16,000 mL total. First 8 hours = 8,000 mL ' '(= 1,000 mL/hour). Next 16 hours = 8,000 mL (= 500 mL/hour).'), sp(4), hot("Fluid monitoring gold standard = hourly urine output (target: adults 0.5–1 mL/kg/hr). [GMC 2024]"), hot("Oliguria during burn resuscitation = increase Ringer's Lactate, do NOT give diuretics. [RMC 2025]"), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 21 – SECTION 13: INITIAL MANAGEMENT (PDF pages 43–46) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(20)] story += section_header('SECTION 13: INITIAL & LONG-TERM MANAGEMENT OF BURNS') story += [ kw('Immediate First Aid:'), body('The very first action for any burn is cooling with cool running tap water for a minimum of ' '20 minutes. This reduces tissue temperature, limits the depth of thermal injury, reduces edema, ' 'and provides immediate analgesia. Ice or ice-cold water must NOT be used — it causes ' 'vasoconstriction and worsens tissue ischemia. Butter, toothpaste, and other home remedies ' 'must be avoided as they trap heat and introduce infection.'), hot('First aid for burns = cool running tap water for ≥20 minutes. No ice, no butter. [KMU 2024]'), sp(6), kw('ATLS Primary Survey:'), body('Burns patients follow the standard ATLS (Advanced Trauma Life Support) ABC approach. ' 'The airway is always assessed FIRST before burn size or depth. Signs of inhalation injury ' '(singed nasal hairs, hoarseness, stridor, carbonaceous sputum, wheezing) in a patient rescued ' 'from an enclosed fire require immediate endotracheal intubation — before airway edema develops ' 'and makes intubation impossible.'), hot('Airway assessment FIRST, before burn assessment. [RMC 2025; GKMC 2024]'), hot('Signs of inhalation injury → immediate endotracheal intubation + high-flow O₂. [RMC 2025]'), sp(6), kw('Escharotomy:'), body('Full-thickness circumferential burns create a tight, inelastic eschar that acts as a tourniquet ' 'as post-burn edema develops beneath. This causes compartment syndrome with loss of distal pulses. ' 'Escharotomy is an incision through the full thickness of the dead eschar (not into muscle fascia) ' 'to release the pressure. No anesthesia is needed because 3rd-degree burns are painless.'), hot('Escharotomy = no anesthesia needed (3rd-degree burn is painless). [GMC 2024]'), sp(4), kw('Fasciotomy:'), body('If escharotomy fails to reduce deep tissue pressure (>30 mmHg), or in high-voltage electrical ' 'injuries with deep muscle necrosis, fasciotomy (incision of the muscle fascia) is required.'), sp(6), kw('Topical Burn Wound Agents:'), two_col_table([ ['AGENT', 'NOTES'], ['Silver Sulfadiazine (SSD / Flamazine)', 'Most widely used; can cause leukopenia; contraindicated on face, in sulfa allergy'], ['Mafenide Acetate (Sulfamylon)', 'Excellent penetration; preferred for deep/cartilaginous burns; causes metabolic acidosis'], ]), hot('Mafenide acetate inhibits carbonic anhydrase → metabolic acidosis + hyperventilation. [GKMC 2024; RMC 2025]'), sp(4), kw('Long-Term Surgical Management:'), body('Deep partial-thickness and full-thickness burns that fail to heal within 3 weeks require ' 'tangential excision (shaving dead tissue layers until viable bleeding dermis is reached) followed ' 'by split-thickness skin grafting. Physiotherapy and pressure garments prevent contractures.'), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # PAGE 22 – SECTION 14: BURN COMPLICATIONS (PDF pages 47–49) # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(21)] story += section_header('SECTION 14: EARLY AND LATE COMPLICATIONS OF BURNS') story += sub_header('1. EARLY COMPLICATIONS') story += [ kw('Inhalation Injury:'), body('Inhalation injury is the single most important negative prognostic factor in burn patients ' '— it carries the highest risk of mortality. It occurs after inhalation of smoke, hot gases, ' 'or toxic combustion products in enclosed fires. The injury affects three zones: upper airway ' '(thermal injury — heat absorbed by oropharynx), lower airway (chemical injury from toxic ' 'aldehydes, HCl, phosgene), and systemic toxicity (carbon monoxide and cyanide poisoning). ' 'Immediate endotracheal intubation is life-saving.'), hot('Inhalation injury = single WORST prognostic factor in major burns. [GMC 2025; GKMC 2024]'), sp(6), kw('Burn Shock:'), body('Major burns (>20–25% TBSA) trigger a systemic inflammatory response with massive release ' 'of inflammatory mediators (histamine, prostaglandins, cytokines). These cause a dramatic ' 'increase in capillary permeability, leading to plasma leakage into the interstitium, ' 'intravascular hypovolemia, and distributive/hypovolemic shock — termed burn shock. ' 'Aggressive fluid resuscitation with Ringer\'s Lactate using the Parkland formula is the treatment.'), sp(4), kw('Rhabdomyolysis & AKI from Electrical Burns:'), body('High-voltage electrical injuries (>1,000 Volts) cause extensive skeletal muscle necrosis. ' 'Myoglobin is released in massive quantities, precipitates in the renal tubules, and causes ' 'myoglobinuric acute kidney injury. The urine turns dark (cola-colored). Treatment requires ' 'aggressive fluid resuscitation targeting higher urine output (1–1.5 mL/kg/hr) to flush the ' 'myoglobin from the tubules.'), hot('High-voltage electrical burns (>1,000V) → rhabdomyolysis → myoglobinuric AKI. [AMC 2024; GKMC 2024]'), ] story += sub_header('2. LATE COMPLICATIONS') story += [ kw('Hypertrophic Scarring:'), body('Occurs commonly after deep partial-thickness burns that take more than 3–4 weeks to heal. ' 'The wound is filled with excessive, poorly organized collagen that raises above skin level. ' 'Unlike keloids (which extend beyond the original wound margins), hypertrophic scars remain ' 'within the wound boundary. Prevention: pressure garments, silicone sheets, early grafting.'), sp(4), kw('Post-Burn Contractures:'), body('After healing of deep burns crossing joints (elbow, axilla, hand, neck, knee), scar contraction ' 'pulls the joint into a fixed, deformed position, causing permanent loss of mobility and function. ' 'Prevention requires early physiotherapy, positioning in extension, and splinting. Treatment: ' 'surgical release (Z-plasty or skin grafting) once scars mature.'), hot('Deep burns healing >3 weeks → high risk of hypertrophic scarring and contractures. [WMC 2024; KMU 2023]'), sp(6), multi_col_table([ ['COMPLICATION', 'TIMING', 'KEY POINT'], ['Inhalation injury', 'Immediate', 'Worst prognostic factor; intubate early'], ['Burn shock', 'Hours', 'Capillary leak → hypovolemia; Parkland formula'], ['Infection / sepsis', 'Days–weeks', 'Avascular eschar cannot be reached by systemic antibiotics'], ['Hypertrophic scarring', 'Weeks–months', 'Deep burns healing >3 weeks'], ['Contracture', 'Months', 'Crosses joints; prevented by early physio + splinting'], ['Electrical AKI', 'Hours–days', 'Myoglobinuria; target UO 1–1.5 mL/kg/hr'], ]), page_break(), ] # ═══════════════════════════════════════════════════════════════════════════ # FINAL PAGE – MASTER MCQ REVISION TABLE # ═══════════════════════════════════════════════════════════════════════════ story += [page_tag(22)] story += section_header('MASTER HIGH-YIELD MCQ REVISION TABLE — BURNS') story += [ multi_col_table([ ['#', 'HIGH-YIELD FACT', 'SOURCE'], ['1', 'Lund & Browder chart = most accurate for TBSA in children', 'GMC 2024'], ['2', 'Rule of Nines for adults: head 9%, arm 9%, leg 18%', 'KMU 2025'], ['3', 'Hourly urine output = gold standard for burn resuscitation adequacy', 'GMC 2024; WMC 2025'], ['4', "Ringer's Lactate = crystalloid of choice for burns", 'GMC 2025; KMU 2023'], ['5', 'Parkland formula = 4 × weight × %TBSA; 50% in 1st 8 hrs (from injury time)', 'GMC 2025'], ['6', 'ATLS ABC approach BEFORE assessing burn size', 'RMC 2025; GKMC 2024'], ['7', '3rd-degree burns = dry, leathery, painless (nerves destroyed)', 'GMC 2024; KMU 2023'], ['8', '2nd-degree burns = painful blisters (nerve endings intact)', 'KMC 2024; KMU 2025'], ['9', 'Inhalation injury = worst prognostic factor in major burns', 'GMC 2025; GKMC 2024'], ['10', 'Hoarseness/stridor after enclosed fire = immediate intubation', 'RMC 2025'], ['11', 'Burn depth assessment may require 3–5 days', 'GMC 2024'], ['12', 'First aid for burns = cool running water ≥20 mins (no ice/butter)', 'KMU 2024'], ['13', 'Escharotomy = no anesthesia (3rd-degree burns are painless)', 'GMC 2024'], ['14', 'Mafenide acetate → carbonic anhydrase inhibition → metabolic acidosis', 'GKMC 2024'], ['15', 'Silver sulfadiazine can cause leukopenia; contraindicated on face', 'KMU 2025'], ['16', 'High-voltage electrical burns (>1000V) → rhabdomyolysis → AKI', 'AMC 2024; GKMC 2024'], ['17', 'Burns >3 weeks healing → high risk of hypertrophic scarring + contracture', 'WMC 2024'], ['18', 'Non-healing deep burns → tangential excision + split-thickness skin graft', 'WMC 2024'], ['19', 'Oliguria during resuscitation = increase crystalloid, NOT diuretics', 'RMC 2025'], ['20', 'Tetanus toxoid for all partial/full-thickness burns not up-to-date', 'RMC 2025'], ]), sp(12), Paragraph('End of Block N Surgery — Detailed Explanation Notes', NOTE), Paragraph('Prepared by Orris AI | Based on Block N Surgery Notes by Haroon', NOTE), ] # ───────────────────────────────────────────────────────────────────────────── doc.build(story) print(f'PDF built successfully: {OUTPUT}') PYEOF echo "Script written"

cd /tmp/workspace/surgery-explanation && python3 build_pdf.py 2>&1

ls -lh /tmp/workspace/surgery-explanation/Surgery_Block_N_Explained.pdf