"septic shock"[MeSH Terms] AND "management"

Surviving Sepsis Campaign adult guidelines 2026 septic shock recommendations

pathophysiology of sepsis and septic shock diagram

https://www.sccm.org/clinical-resources/guidelines/guideline…

mkdir -p /tmp/workspace/septic-shock-note && cd /tmp/workspace/septic-shock-note && curl -sL -o sepsis_patho.jpg "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_068567e08d01f798c650ab7e8777d08409e588e4a9e85b4527081d042fdf81c8.jpg" && ls -la && python3 -c "from PIL import Image; im=Image.open('sepsis_patho.jpg'); print(im.size)"

cat > /tmp/workspace/septic-shock-note/build.py <<'EOF' from docx import Document from docx.shared import Pt, Inches, RGBColor from docx.enum.text import WD_ALIGN_PARAGRAPH from docx.enum.table import WD_TABLE_ALIGNMENT from docx.oxml.ns import qn from docx.oxml import OxmlElement NAVY = RGBColor(0x1F,0x3A,0x5F) doc = Document() sec = doc.sections[0] sec.page_width, sec.page_height = Inches(8.27), Inches(11.69) for a in ("left_margin","right_margin"): setattr(sec,a,Inches(0.9)) sec.top_margin = Inches(0.8); sec.bottom_margin = Inches(0.8) st = doc.styles["Normal"]; st.font.name="Arial"; st.font.size=Pt(10.5) st.element.rPr.rFonts.set(qn("w:eastAsia"),"Arial") st.paragraph_format.space_after = Pt(4); st.paragraph_format.line_spacing = 1.12 for name,size in (("Heading 1",14),("Heading 2",11.5)): h = doc.styles[name]; h.font.name="Arial"; h.font.size=Pt(size); h.font.bold=True h.font.color.rgb = NAVY h.element.rPr.rFonts.set(qn("w:eastAsia"),"Arial") h.paragraph_format.space_before = Pt(10 if name=="Heading 1" else 6) h.paragraph_format.space_after = Pt(3) h.paragraph_format.keep_with_next = True def shade(cell, color): tcPr = cell._tc.get_or_add_tcPr(); s = OxmlElement("w:shd") s.set(qn("w:val"),"clear"); s.set(qn("w:color"),"auto"); s.set(qn("w:fill"),color); tcPr.append(s) def para(text="", bold_lead=None, style=None, italic=False, size=None, align=None): p = doc.add_paragraph(style=style) if bold_lead: r = p.add_run(bold_lead); r.bold=True r = p.add_run(text); r.italic = italic if size: for x in p.runs: x.font.size = Pt(size) if align: p.alignment = align return p def bullet(text, lead=None): p = doc.add_paragraph(style="List Bullet") p.paragraph_format.space_after = Pt(2) if lead: r = p.add_run(lead); r.bold=True p.add_run(text); return p def table(rows, widths, header=True, size=9.5): t = doc.add_table(rows=len(rows), cols=len(rows[0])); t.style="Table Grid" t.alignment = WD_TABLE_ALIGNMENT.CENTER for i,row in enumerate(rows): for j,val in enumerate(row): c = t.cell(i,j); c.width = Inches(widths[j]); c.text="" p = c.paragraphs[0]; p.paragraph_format.space_after=Pt(1) r = p.add_run(val); r.font.size=Pt(size) if header and i==0: r.bold=True; r.font.color.rgb=RGBColor(255,255,255); shade(c,"1F3A5F") elif j==0: r.bold=True; shade(c,"E8EEF5") doc.add_paragraph().paragraph_format.space_after=Pt(2) return t # footer page numbers fp = sec.footer.paragraphs[0]; fp.alignment = WD_ALIGN_PARAGRAPH.CENTER r = fp.add_run("Septic Shock: Short Note | Page "); r.font.size=Pt(8.5) r2 = fp.add_run(); r2.font.size=Pt(8.5) for t,txt in (("begin",None),("instr"," PAGE "),("end",None)): if t=="instr": e = OxmlElement("w:instrText"); e.set(qn("xml:space"),"preserve"); e.text=txt else: e = OxmlElement("w:fldChar"); e.set(qn("w:fldCharType"),t) r2._r.append(e) # Title tp = doc.add_paragraph(); tp.alignment = WD_ALIGN_PARAGRAPH.CENTER r = tp.add_run("SEPTIC SHOCK"); r.bold=True; r.font.size=Pt(22); r.font.color.rgb=NAVY sp = doc.add_paragraph(); sp.alignment = WD_ALIGN_PARAGRAPH.CENTER r = sp.add_run("Short note: definition, pathophysiology, diagnosis and management"); r.italic=True; r.font.size=Pt(11) doc.add_heading("1. Introduction and Definitions", 1) para("Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection (Sepsis-3, 2016). Septic shock is the subset of sepsis in which circulatory, cellular and metabolic abnormalities are profound enough to substantially increase mortality. It is a form of distributive shock: vasodilation, capillary leak and myocardial depression combine to cause tissue hypoperfusion.") table([ ["Term","Definition (Sepsis-3)"], ["Infection","Suspected or proven infection (bacterial, viral, fungal or parasitic)."], ["Sepsis","Infection plus acute rise in SOFA score of 2 or more points from baseline (organ dysfunction)."], ["Septic shock","Sepsis with persistent hypotension needing vasopressors to keep MAP of 65 mmHg or more AND serum lactate above 2 mmol/L despite adequate fluid resuscitation. Hospital mortality exceeds 40%."], ["qSOFA (bedside screen)","Any 2 of: respiratory rate 22/min or more, altered mentation (GCS below 15), systolic BP 100 mmHg or less. A positive screen prompts a full SOFA assessment. It is a screening prompt, not a diagnostic test."], ],[1.6,5.0]) para("The older term \"severe sepsis\" has been dropped. SIRS (two or more of: temperature above 38 or below 36 C, heart rate above 90, respiratory rate above 20, WBC above 12,000 or below 4,000/mm3) is no longer part of the definition because it is non-specific, though it is still seen in older texts and exam answers.", size=10) doc.add_heading("2. Epidemiology and Aetiology", 1) para("Sepsis affects tens of millions of people worldwide each year and is a leading cause of in-hospital death. Septic shock develops in roughly one in five to one in three septic patients in ICU series. Risk is highest at the extremes of age and in people with comorbidities.") doc.add_heading("Common sources", 2) bullet(" pneumonia (most common), including community-acquired and ventilator-associated.", "Respiratory:") bullet(" peritonitis, cholangitis, perforation, intra-abdominal abscess.", "Abdominal:") bullet(" pyelonephritis, obstructive uropathy, catheter-associated infection.", "Urinary:") bullet(" cellulitis, necrotising fasciitis, toxic shock syndrome, line-related bacteraemia.", "Skin, soft tissue and devices:") bullet(" meningitis, endocarditis, post-partum or post-abortal sepsis.", "Others:") doc.add_heading("Risk factors", 2) para("Age over 65 or under 1 year, diabetes, malignancy, chemotherapy, immunosuppression, HIV, cirrhosis, chronic kidney disease, alcohol misuse, indwelling catheters or recent surgery, and pregnancy or the puerperium. Gram-negative organisms (E. coli, Klebsiella, Pseudomonas) and Gram-positive cocci (Staph. aureus, Streptococcus pneumoniae, group A strep) are the commonest pathogens. Fungi matter mainly in immunocompromised or prolonged-ICU patients.") doc.add_heading("3. Pathophysiology", 1) para("Pathogen-associated molecular patterns (such as bacterial lipopolysaccharide) and host damage-associated molecular patterns (such as HMGB1) bind pattern-recognition receptors, mainly Toll-like receptors, on macrophages and endothelium. This triggers NF-kB signalling and release of TNF-alpha, IL-1, IL-6 and IL-8. A pro-inflammatory phase and a compensatory anti-inflammatory phase (IL-10, regulatory T-cells, lymphocyte apoptosis) run in parallel, which explains both early shock and later immunoparalysis with secondary infections.") p = doc.add_paragraph(); p.alignment = WD_ALIGN_PARAGRAPH.CENTER p.add_run().add_picture("/tmp/workspace/septic-shock-note/sepsis_patho.jpg", width=Inches(3.6)) para("Figure. Dysregulated host response in sepsis: concurrent pro-inflammatory (SIRS) and anti-inflammatory/immunosuppressive (CARS) pathways. Source: Orris medical image library.", italic=True, size=8.5, align=WD_ALIGN_PARAGRAPH.CENTER) doc.add_heading("Key mechanisms leading to shock", 2) bullet(" Inducible nitric oxide synthase, prostacyclin and a relative deficiency of vasopressin cause loss of vascular smooth muscle tone and low systemic vascular resistance (SVR). Catecholamine hyporesponsiveness develops through receptor down-regulation and K-ATP channel activation.", "Vasodilation:") bullet(" Glycocalyx shedding and endothelial injury cause leaky capillaries, interstitial oedema and effective hypovolaemia. Venodilation lowers venous return.", "Capillary leak:") bullet(" Cytokines, nitric oxide and altered calcium handling reduce contractility (septic cardiomyopathy). Ejection fraction may fall even when cardiac output is high.", "Myocardial depression:") bullet(" Tissue factor expression, reduced antithrombin and protein C, and raised PAI-1 produce microthrombi and DIC, worsening organ perfusion.", "Coagulopathy:") bullet(" Tissue hypoxia itself activates NF-kB, cytokine synthesis, nitric oxide and HMGB-1, and induces coagulation (Goldman-Cecil Medicine, section on tissue hypoxia in septic shock). Mitochondrial dysfunction prevents oxygen use even when delivery is restored, giving cytopathic hypoxia and lactate rise.", "Microcirculatory and cellular failure:") para("The haemodynamic picture is typically a warm, vasodilated state (high or normal cardiac output, low SVR) early on, which becomes cold and hypodynamic if volume depletion or myocardial failure dominates.") doc.add_heading("4. Clinical Features", 1) table([ ["System","Features"], ["General / CVS","Fever or hypothermia, rigors, tachycardia, warm flushed peripheries and bounding pulses early; hypotension, cold mottled skin and delayed capillary refill late."], ["Respiratory","Tachypnoea, hypoxaemia, ARDS (PaO2/FiO2 below 300 with bilateral infiltrates)."], ["CNS","Confusion, agitation, drowsiness, reduced GCS (septic encephalopathy)."], ["Renal","Oliguria (below 0.5 mL/kg/h), rising creatinine (acute kidney injury)."], ["Haematological","Thrombocytopenia, prolonged PT/aPTT, purpura (DIC)."], ["Hepatic / GI","Jaundice, raised bilirubin, ileus, stress ulceration."], ["Source clues","Cough and consolidation, dysuria and flank pain, abdominal guarding, spreading erythema, meningism, new murmur, petechial rash."], ],[1.4,5.2]) para("Elderly, diabetic and immunosuppressed patients may present without fever, with only confusion or a fall in functional state.", size=10) doc.add_heading("5. Investigations", 1) bullet(" at least two sets of blood cultures before antibiotics (without delaying them by more than 45 minutes), plus cultures of urine, sputum, wound, CSF or line tips as indicated.", "Microbiology:") bullet(" serum lactate (repeat if above 2 mmol/L), arterial blood gas, CBC with differential, CRP and procalcitonin, urea, creatinine, electrolytes, LFTs, coagulation profile with fibrinogen and D-dimer, glucose.", "Blood tests:") bullet(" chest X-ray, bedside ultrasound (IVC, cardiac function, abdomen), CT or MRI to find and plan control of the source.", "Imaging:") bullet(" ECG, urine output monitoring, arterial line for continuous BP, central venous access for vasopressors where needed. Echocardiography helps assess cardiac function and fluid responsiveness.", "Monitoring:") bullet(" SOFA score (PaO2/FiO2, platelets, bilirubin, MAP or vasopressor dose, GCS, creatinine or urine output) to quantify organ dysfunction and track progress.", "Scoring:") doc.add_heading("6. Management", 1) para("Septic shock is a time-critical emergency. Management follows the Surviving Sepsis Campaign (SSC) approach, now updated in the [SSC 2026 adult guidelines](https://www.sccm.org/clinical-resources/guidelines/guidelines/surviving-sepsis-campaign-international-guidelines-for-management-of-sepsis-and-septic-shock-2026). Recommendation strengths below are taken from that document unless marked as 2021.".replace("[SSC 2026 adult guidelines](https://www.sccm.org/clinical-resources/guidelines/guidelines/surviving-sepsis-campaign-international-guidelines-for-management-of-sepsis-and-septic-shock-2026)","SSC 2026 adult guidelines")) doc.add_heading("6.1 Hour-1 bundle (resuscitate while you investigate)", 2) table([ ["Step","Action"], ["1","Recognise early; call for senior and ICU help; give oxygen to target SpO2 of 92-96%."], ["2","Measure lactate; repeat within 2-4 hours if raised. Use capillary refill time as an adjunct perfusion marker (SSC 2026, conditional)."], ["3","Take blood cultures before antibiotics, if this causes no significant delay."], ["4","Give broad-spectrum IV antimicrobials immediately, ideally within 1 hour of recognition in possible, probable or definite septic shock (strong recommendation)."], ["5","Start IV crystalloid resuscitation. The classical dose is 30 mL/kg within the first 3 hours (suggested in SSC 2021); give in boluses and reassess after each, as dosing should be individualised."], ["6","Start vasopressors if hypotension persists during or after fluids, to keep MAP at 65 mmHg or more."], ],[0.6,6.0]) doc.add_heading("6.2 Antimicrobial therapy", 2) bullet("Choose empiric cover by likely source, local resistance patterns, recent antibiotic exposure and immune status. Use one or more agents covering all likely pathogens, and add MRSA or antifungal cover only where risk factors exist (SSC 2026 advises against routine empiric antifungals).") bullet("Optimise dosing using pharmacokinetic principles; consider prolonged beta-lactam infusion.") bullet("De-escalate by culture results and clinical response. Use the shortest effective course (commonly 7-10 days; longer for undrained foci, bacteraemia with S. aureus or slow response). Procalcitonin can help decide when to stop.") doc.add_heading("6.3 Fluid resuscitation", 2) bullet("Crystalloids are first-line; balanced crystalloids (Ringer's lactate, Plasma-Lyte) are suggested over 0.9% saline, except in traumatic brain injury (SSC 2026).") bullet("Crystalloids alone are suggested over adding albumin. Albumin may be considered when large volumes are needed or in cirrhosis.") bullet("Avoid starch solutions and gelatins. Use dynamic measures (passive leg raise, pulse pressure variation, ultrasound) and capillary refill to guide further fluid, and avoid fluid overload once the patient is no longer fluid responsive.") doc.add_heading("6.4 Vasopressors and inotropes", 2) bullet(" is the first-line vasopressor (strong recommendation, SSC 2026), preferred over dopamine, epinephrine or selepressin. It can be started peripherally through a good proximal vein while central access is arranged. Rosen's Emergency Medicine notes that peripheral initiation is reasonable in the emergency setting.", "Norepinephrine") bullet(" Initial MAP target is 65 mmHg (strong). A range of 60-65 mmHg is suggested for patients aged 65 or over.", "Target:") bullet(" Vasopressin (up to 0.03 units/min) is added when norepinephrine alone is insufficient, as a second-line agent (Goldman-Cecil Medicine: not superior as a single agent). Epinephrine can be added as a third agent. SSC 2026 suggests against terlipressin.", "Adding agents:") bullet(" Dobutamine (or epinephrine) is considered if there is evidence of myocardial dysfunction with persistent hypoperfusion despite adequate MAP and volume.", "Inotropes:") bullet(" Insert an arterial line as soon as practical.", "Monitoring:") doc.add_heading("6.5 Corticosteroids", 2) para("IV corticosteroids are suggested for septic shock (conditional, SSC 2026). A typical regimen is hydrocortisone 200 mg/day (50 mg every 6 hours or by infusion), started when ongoing vasopressor need persists (SSC 2021: norepinephrine 0.25 mcg/kg/min or more for at least 4 hours). Fludrocortisone is optional.") doc.add_heading("6.6 Source control", 2) para("Identify an anatomic source within 6-12 hours and control it as soon as medically and logistically practical: drain abscesses and empyema, decompress obstructed biliary or urinary tracts, debride necrotic tissue, and remove infected intravascular devices after establishing alternative access.") doc.add_heading("6.7 Organ support and general care", 2) bullet(" Low tidal volume (6 mL/kg predicted body weight) with plateau pressure below 30 cmH2O for sepsis-induced ARDS; prone positioning for moderate-severe ARDS (PaO2/FiO2 below 150); VV-ECMO in selected severe cases at experienced centres.", "Ventilation:") bullet(" Renal replacement therapy for standard indications (refractory acidosis, hyperkalaemia, uraemia, fluid overload), not for creatinine rise alone.", "Renal:") bullet(" Restrictive transfusion (threshold haemoglobin 7 g/dL) is recommended in the absence of myocardial ischaemia or active bleeding.", "Blood products:") bullet(" Start insulin at glucose of 180 mg/dL (10 mmol/L) or above and aim for 144-180 mg/dL.", "Glucose:") bullet(" Pharmacological prophylaxis alone (low-molecular-weight heparin preferred); stress-ulcer prophylaxis in those at risk of GI bleeding; early enteral nutrition within 72 hours.", "VTE, GI and nutrition:") bullet(" Admit to ICU within 6 hours; discuss goals of care early; plan post-discharge follow-up.", "Disposition:") bullet(" Sodium bicarbonate is not recommended for lactic acidosis unless severe acidaemia (pH below 7.2) with AKI; high-dose vitamin C and routine immunoglobulins are not recommended.", "Not recommended:") doc.add_heading("6.8 Resuscitation end-points", 2) para("MAP of 65 mmHg or more, falling lactate, improving capillary refill and mottling, urine output above 0.5 mL/kg/h, improving mental state and decreasing vasopressor requirement. Refractory shock needs a search for missed source, adrenal insufficiency, tamponade, pneumothorax, and drug or fluid problems.") doc.add_heading("7. Complications", 1) para("ARDS, acute kidney injury, DIC, septic cardiomyopathy, ischaemic hepatitis, ileus and stress ulcer bleeding, critical-illness polyneuropathy and myopathy, secondary infections (immunoparalysis), peripheral gangrene (symmetrical purpura fulminans), and multi-organ dysfunction syndrome. Long-term effects of survivors include post-sepsis syndrome: cognitive impairment, PTSD and depression, weakness and readmission.") doc.add_heading("8. Prognosis", 1) para("Hospital mortality is roughly 10% for sepsis and above 40% for septic shock. Adverse prognostic factors include delayed antibiotics or source control, high or non-clearing lactate, higher SOFA score, number of failing organs, advanced age, immunosuppression and inappropriate empiric therapy. Each hour of antibiotic delay in shock is associated with higher mortality.") doc.add_heading("9. Quick Revision Points", 1) for t in [ "Septic shock = sepsis + vasopressor need for MAP 65 + lactate above 2 despite fluids; mortality above 40%.", "Distributive shock: low SVR, capillary leak, myocardial depression, cytopathic hypoxia.", "Antibiotics within 1 hour; cultures first if no delay; lactate measured early.", "Balanced crystalloids first-line; 30 mL/kg is the traditional starting volume; reassess with dynamic measures.", "Norepinephrine first, MAP target 65; add vasopressin, then consider epinephrine; hydrocortisone for refractory shock.", "Control the source early; supportive care (lung-protective ventilation, restrictive transfusion, VTE prophylaxis, early feeding).", ]: bullet(t) doc.add_heading("Sources", 2) para("Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2026 (SCCM / Intensive Care Medicine). Singer M et al. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA 2016;315:801-810. Goldman-Cecil Medicine International Edition (Circulatory Therapy; Vasopressors; Tissue Hypoxia in Septic Shock). Rosen's Emergency Medicine (Vasoactive Drug Therapy). Tintinalli's Emergency Medicine (Norepinephrine). Dosing details marked as 2021 come from the earlier SSC 2021 guideline and should be checked against current local protocols.", size=9) doc.save("/tmp/workspace/septic-shock-note/Septic_Shock_Short_Note.docx") EOF cd /tmp/workspace/septic-shock-note && python3 build.py && python3 -c " from docx import Document d=Document('Septic_Shock_Short_Note.docx') w=sum(len(p.text.split()) for p in d.paragraphs)+sum(len(c.text.split()) for t in d.tables for r in t.rows for c in r.cells) print(w)"

cd /tmp/workspace/septic-shock-note && python3 -c " from docx import Document d=Document('Septic_Shock_Short_Note.docx') t=' '.join(p.text for p in d.paragraphs)+' '.join(c.text for tb in d.tables for r in tb.rows for c in r.cells) print('\u2014' in t, '\u2013' in t)"; ls -la