2025 cardiomegaly diagnosis ECG radiographic changes treatment beta blockers cardiac glycosides guideline

"cardiomegaly" AND "heart failure"

chest radiograph cardiomegaly increased cardiothoracic ratio pulmonary vascular congestion

ECG left ventricular hypertrophy strain pattern 12 lead

2022 AHA ACC HFSA guideline beta blockers digoxin heart failure recommendations

~/

mkdir -p "/tmp/workspace/cardiomegaly-ppt/src" "/tmp/workspace/cardiomegaly-ppt/output" "/tmp/workspace/cardiomegaly-ppt/assets" && python /tmp/skills/shared/scripts/fetch_images.py "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_4ee8d8c1a9e409dcc3d45aef14b4e850b78c1d7c05459012be5ab562929b6e71.jpg" "https://cdn.orris.care/cdss_images/pmc_clinical_VQA_03152b722b1cb86ef1d57f4d755aa687989488df7da9defa36d7d35f9ab80e28.jpg" > "/tmp/workspace/cardiomegaly-ppt/assets/image_data.json"

python - <<'PY' import json,base64,os p='/tmp/workspace/cardiomegaly-ppt/assets/image_data.json' with open(p) as f: d=json.load(f) for i,x in enumerate(d): raw=base64.b64decode(x['base64'].split(',',1)[1]) open(f'/tmp/workspace/cardiomegaly-ppt/assets/img{i+1}.jpg','wb').write(raw) print([(i+1,len(base64.b64decode(x['base64'].split(',',1)[1]))) for i,x in enumerate(d)]) PY

cat > "/tmp/workspace/cardiomegaly-ppt/src/create_ppt.py" <<'PY' from pptx import Presentation from pptx.util import Inches, Pt from pptx.dml.color import RGBColor from pptx.enum.text import PP_ALIGN, MSO_ANCHOR from pptx.enum.shapes import MSO_SHAPE from pptx.enum.dml import MSO_THEME_COLOR from pptx.enum.text import MSO_AUTO_SIZE from pptx.enum.shapes import MSO_CONNECTOR from pptx import Presentation from pathlib import Path OUT = Path('/tmp/workspace/cardiomegaly-ppt/output/Cardiomegaly_Talha_Khan_610A.pptx') ASSET = Path('/tmp/workspace/cardiomegaly-ppt/assets') prs = Presentation(); prs.slide_width=Inches(13.333); prs.slide_height=Inches(7.5) blank=prs.slide_layouts[6] NAVY=RGBColor(11,31,52); BLUE=RGBColor(25,116,171); TEAL=RGBColor(25,150,152); RED=RGBColor(202,66,67); GOLD=RGBColor(237,171,42); PALE=RGBColor(238,246,249); WHITE=RGBColor(255,255,255); TEXT=RGBColor(34,49,63); MUTED=RGBColor(91,108,122); GREEN=RGBColor(46,139,87); LIGHTRED=RGBColor(252,235,235) def rect(s,x,y,w,h,fill,line=None,r=False): sh=s.shapes.add_shape(MSO_SHAPE.ROUNDED_RECTANGLE if r else MSO_SHAPE.RECTANGLE, Inches(x), Inches(y), Inches(w), Inches(h)) sh.fill.solid(); sh.fill.fore_color.rgb=fill sh.line.color.rgb = line if line else fill return sh def textbox(s,x,y,w,h,text,size=18,color=TEXT,bold=False,align=PP_ALIGN.LEFT,font='Aptos',val=MSO_ANCHOR.TOP): sh=s.shapes.add_textbox(Inches(x),Inches(y),Inches(w),Inches(h)); tf=sh.text_frame tf.clear(); tf.word_wrap=True; tf.margin_left=Inches(.06); tf.margin_right=Inches(.06); tf.margin_top=Inches(.03); tf.margin_bottom=Inches(.02); tf.vertical_anchor=val lines=text.split('\n') for i,line in enumerate(lines): p=tf.paragraphs[0] if i==0 else tf.add_paragraph(); p.text=line; p.alignment=align; p.space_after=Pt(4) for r in p.runs: r.font.name=font; r.font.size=Pt(size); r.font.bold=bold; r.font.color.rgb=color return sh def title(s,n,t,sub=None): rect(s,0,0,13.333,.48,NAVY); textbox(s,.55,.61,11.8,.48,t,27,NAVY,True) if sub: textbox(s,.58,1.10,11.7,.28,sub,11,MUTED) textbox(s,12.18,.12,.65,.2,f'{n:02}',10,WHITE,True,PP_ALIGN.RIGHT) rect(s,.56,1.46,1.05,.05,TEAL) def footer(s): rect(s,0,7.22,13.333,.28,NAVY); textbox(s,.55,7.255,8,.16,'Cardiomegaly | Talha Khan | Group 610A',8,WHITE) def bullets(s, items, x=.75,y=1.75,w=6.0,h=4.9,size=19,accent=TEAL): for i,item in enumerate(items): yy=y+i*(h/len(items)) rect(s,x,yy+.10,.12,.12,accent) textbox(s,x+.27,yy,w-.27,h/len(items)-.03,item,size,TEXT,False) def card(s,x,y,w,h,head,body,color=BLUE): rect(s,x,y,w,h,WHITE,RGBColor(210,222,230),True); rect(s,x,y,w,.12,color) textbox(s,x+.22,y+.25,w-.44,.34,head,16,color,True) textbox(s,x+.22,y+.70,w-.44,h-.82,body,13,TEXT) def add_notes(slide, note): notes=slide.notes_slide.notes_text_frame notes.text=note def image(s,path,x,y,w,h,cap=None): s.shapes.add_picture(str(path), Inches(x), Inches(y), width=Inches(w), height=Inches(h)) if cap: textbox(s,x,y+h+.03,w,.30,cap,9,MUTED,False,PP_ALIGN.CENTER) def cover(): s=prs.slides.add_slide(blank); rect(s,0,0,13.333,7.5,NAVY); rect(s,0,0,.22,7.5,TEAL); rect(s,8.9,0,4.43,7.5,RGBColor(16,55,79)) # stylized cardiac silhouette for x,y,sz,c in [(9.65,1.05,2.2,TEAL),(10.7,2.3,1.55,BLUE),(9.2,3.3,1.9,RED)]: sh=s.shapes.add_shape(MSO_SHAPE.HEART,Inches(x),Inches(y),Inches(sz),Inches(sz)); sh.fill.solid();sh.fill.fore_color.rgb=c;sh.line.color.rgb=c textbox(s,.8,1.2,7.5,.55,'CARDIOMEGALY',36,WHITE,True) textbox(s,.82,1.93,7.4,.8,'Causes, types, clinical features, ECG and radiological changes, treatment, beta-blockers and cardiac glycosides',20,RGBColor(211,229,238)) rect(s,.82,3.35,2.0,.06,GOLD); textbox(s,.82,4.0,4.8,.35,'Name: Talha Khan',20,WHITE,True); textbox(s,.82,4.48,4.8,.35,'Group: 610A',20,WHITE,True) textbox(s,.82,6.65,6,.24,'Educational presentation | September 2026',10,RGBColor(185,208,220)) add_notes(s,'Opening slide. Introduce cardiomegaly as an enlarged heart silhouette or true chamber/wall enlargement, not a diagnosis by itself.') def standard(n,t,items,sub=None, note=''): s=prs.slides.add_slide(blank); title(s,n,t,sub); bullets(s,items); footer(s); add_notes(s,note); return s cover() standard(2,'Learning objectives',['Define cardiomegaly and distinguish it from pseudo-cardiomegaly.','Classify cardiomegaly by chamber, mechanism, and time course.','Recognize clinical, ECG, and chest radiographic features.','Outline cause-directed treatment and safe use of beta-blockers and cardiac glycosides.'],note='State that the presentation focuses on adult principles; individual therapy needs clinical assessment and echocardiography.') standard(3,'What is cardiomegaly?',['Cardiomegaly means enlargement of the heart caused by chamber dilatation, myocardial hypertrophy, or both.','It may be physiological, for example in trained athletes, or pathological.','On an upright posteroanterior chest radiograph, a cardiothoracic ratio (CTR) greater than 0.50 suggests an enlarged cardiac silhouette.','Chest radiography is a screening tool. Echocardiography determines chamber size, wall thickness, valves, and ventricular function.'],note='Mention that CTR may mislead in AP portable films, poor inspiration, obesity, pericardial effusion, or chest-wall deformity.') standard(4,'Why the heart enlarges',['Pressure overload causes hypertrophy: myocytes thicken to generate higher pressure.','Volume overload causes dilatation: increased end-diastolic volume enlarges a chamber.','Myocardial injury or genetic disease can reduce contractility and promote remodeling.','Pericardial fluid can mimic cardiomegaly on radiography without true cardiac enlargement.'],note='Use the terms concentric hypertrophy, eccentric hypertrophy and dilatation.') standard(5,'Types: by anatomical pattern',['Left ventricular enlargement: hypertension, aortic valve disease, ischemic/dilated cardiomyopathy.','Right ventricular enlargement: pulmonary hypertension, chronic lung disease, pulmonary valve disease, congenital shunts.','Biatrial enlargement: chronic mitral disease, restrictive cardiomyopathy, long-standing atrial arrhythmias.','Global enlargement: dilated cardiomyopathy, advanced valvular disease, large shunts, or combined heart failure.'],note='Emphasize that chamber pattern helps suggest etiology but is confirmed by echo or cardiac MRI.') standard(6,'Types: by mechanism and time course',['Concentric hypertrophy: increased wall thickness with relatively small/normal cavity, classically pressure overload.','Eccentric hypertrophy/dilatation: increased cavity size with increased mass, classically volume overload or systolic failure.','Acute enlargement can occur with acute valvular regurgitation or myocarditis, but marked radiographic enlargement usually takes time.','Physiological remodeling in athletes should be differentiated from disease using history, examination, ECG, and imaging.'],note='Avoid calling all large hearts “hypertrophy”. Dilatation and hypertrophy have different causes.') standard(7,'Major causes: pressure overload',['Systemic hypertension: common cause of left ventricular hypertrophy.','Aortic stenosis or coarctation: chronic left ventricular pressure load.','Pulmonary hypertension: right ventricular hypertrophy and later dilatation.','Pulmonic stenosis or chronic thromboembolic disease: right-sided pressure overload.'],note='Relate pressure load to concentric hypertrophy, then eventual decompensation/dilatation.') standard(8,'Major causes: volume overload',['Valvular regurgitation: aortic, mitral, tricuspid, or pulmonary regurgitation.','Congenital shunts: atrial septal defect, ventricular septal defect, patent ductus arteriosus.','High-output states: severe anemia, thyrotoxicosis, arteriovenous fistula, and some nutritional disorders.','Chronic kidney disease and salt-water retention can worsen volume load and heart failure.'],note='Explain that shunts may create right-sided or biventricular enlargement depending on the lesion.') standard(9,'Major causes: myocardial disease',['Ischemic heart disease and prior myocardial infarction with ventricular remodeling.','Dilated cardiomyopathy: idiopathic, genetic, viral/inflammatory, toxin-related, or peripartum.','Hypertrophic cardiomyopathy and infiltrative/storage disease such as amyloidosis or Fabry disease.','Myocarditis, tachycardia-induced cardiomyopathy, and stress-related cardiomyopathy.'],note='A cause-based diagnosis determines management. Cardiomegaly itself is not treated as a stand-alone disorder.') standard(10,'Specific clinical symptoms',['Breathlessness on exertion, orthopnea, paroxysmal nocturnal dyspnea, and reduced exercise tolerance.','Fatigue, weakness, early satiety, and reduced concentration due to low cardiac output.','Palpitations, dizziness, presyncope/syncope, or chest pain depending on rhythm and cause.','Leg swelling, abdominal distension, weight gain, and nocturia from congestion.'],note='Symptoms can be absent early. Ask about rapid symptom change, which may signify acute heart failure or arrhythmia.') standard(11,'Key physical signs',['Displaced and diffuse apical impulse; heaves may suggest ventricular hypertrophy.','S3 gallop may indicate volume overload/systolic dysfunction; S4 may occur with a stiff hypertrophied ventricle.','Murmurs point to valvular disease; irregular pulse may indicate atrial fibrillation.','Raised JVP, basal crackles, hepatomegaly, ascites, and peripheral edema indicate congestion.'],note='Signs must be interpreted together with history, ECG, imaging and biomarkers.') # image slide CXR s=prs.slides.add_slide(blank); title(s,12,'Radiological changes: chest radiograph','A chest X-ray supports, but does not establish, the diagnosis.'); image(s,ASSET/'img1.jpg',.65,1.75,6.1,4.55,'PA radiograph: enlarged cardiac silhouette with pulmonary vascular congestion (educational image).'); bullets(s,['CTR >0.50 on an upright PA film suggests cardiomegaly.','Assess shape: left ventricular prominence, right-sided contour changes, or globular silhouette.','Look for pulmonary venous redistribution, interstitial/alveolar edema, pleural effusions, and vascular congestion.','Confirm with echocardiography; AP portable films can magnify the heart.'],7.05,1.75,5.55,4.9,15,RED); footer(s); add_notes(s,'Read the film systematically: projection, inspiration, CTR, cardiac contours, pulmonary vessels, edema, and pleura.') standard(13,'Radiological changes: beyond X-ray',['Echocardiography is first-line to measure chamber dimensions, ejection fraction, wall thickness, valves, filling pressures, and pericardial effusion.','Cardiac MRI characterizes myocardial morphology, function, fibrosis, inflammation, and infiltrative disease.','CT may define coronary, aortic, pericardial, or congenital structural disease when indicated.','Imaging must be integrated with clinical findings and ECG.'],note='No test should be ordered in isolation. Echo answers the most common questions after an enlarged silhouette is seen.') # ECG image slide s=prs.slides.add_slide(blank); title(s,14,'ECG changes associated with cardiomegaly','ECG findings depend on the enlarged chamber and underlying disease.'); image(s,ASSET/'img2.jpg',.55,1.65,5.8,4.95,'Example: LVH voltage with lateral ST-T “strain” pattern (educational image).'); bullets(s,['LVH: increased QRS voltage, left-axis deviation, and lateral ST depression/T-wave inversion (“strain”).','RVH: right-axis deviation, dominant R in V1, and right-precordial strain.','Atrial enlargement: broad/notched P waves in LAE or peaked P waves in RAE.','Other possible findings: atrial fibrillation, bundle branch block, Q waves from infarction, or low voltage with effusion/infiltration.'],6.65,1.75,5.95,4.75,15,TEAL); footer(s); add_notes(s,'ECG cannot diagnose cardiomegaly reliably. It detects electrical effects and clues to etiology.') standard(15,'Diagnostic approach',['History: hypertension, coronary disease, valvular/rheumatic disease, alcohol/toxins, family history, pregnancy, systemic symptoms.','Examination: signs of heart failure, valvular lesions, arrhythmia, and systemic disease.','Initial tests: ECG, chest X-ray, blood tests such as CBC, renal function, electrolytes, thyroid tests, and natriuretic peptides when appropriate.','Confirm and phenotype with echocardiography. Consider MRI, ischemia evaluation, genetic or disease-specific tests when indicated.'],note='Include red flags: syncope, severe dyspnea, hypotension, acute pulmonary edema, ongoing chest pain, or sustained ventricular arrhythmia need urgent assessment.') standard(16,'Treatment principles',['Treat the cause: control blood pressure, repair/replace significant valves, treat ischemia, correct endocrine or hematologic causes, and manage congenital lesions.','Treat heart failure phenotype: diuretics for congestion plus evidence-based long-term therapy when HFrEF is present.','Manage arrhythmias, especially atrial fibrillation, with rate/rhythm strategy and anticoagulation when indicated.','Supportive care: salt moderation when advised, fluid plan for selected patients, smoking cessation, activity/cardiac rehabilitation, and vaccination.'],note='Do not imply every cardiomegaly needs the same drugs. Therapy is phenotype and cause specific.') standard(17,'HFrEF therapy: a practical framework',['For symptomatic HFrEF, guideline-directed therapy typically includes an ARNI/ACE inhibitor/ARB, evidence-based beta-blocker, mineralocorticoid receptor antagonist, and SGLT2 inhibitor.','Loop diuretics relieve fluid congestion but do not replace disease-modifying therapy.','Iron deficiency treatment, device therapy, revascularization, valve intervention, or advanced HF referral may be appropriate in selected patients.','Titrate medications gradually with blood pressure, pulse, renal function, potassium, symptoms, and volume status monitoring.'],note='This is a high-level educational framework, not a prescription. The four foundational drug classes are for HFrEF, not automatically for all cardiomegaly.') standard(18,'Beta-blockers: specific features',['In stable symptomatic HFrEF, the mortality-reducing agents are bisoprolol, carvedilol, and sustained-release metoprolol succinate. Start low and titrate slowly when euvolemic and clinically stable.','Benefits: lower mortality and hospitalization, improve remodeling, slow heart rate, and help control rate in atrial fibrillation.','Monitor heart rate, blood pressure, fatigue, fluid retention, AV block, bronchospasm risk, and glucose masking in diabetes.','Avoid initiation or dose escalation during acute decompensated heart failure, shock, marked bradycardia, or high-grade AV block unless paced/specialist-directed.'],note='Beta-blockers can transiently worsen symptoms at initiation. Reassess volume status before increasing dose.') standard(19,'Cardiac glycosides: digoxin',['Digoxin inhibits Na+/K+-ATPase, increasing intracellular calcium and contractility; it also increases vagal tone and slows AV nodal conduction.','Main roles: selected symptomatic HFrEF despite guideline-directed therapy to reduce HF hospitalization, and ventricular rate control in atrial fibrillation when appropriate.','It does not provide the mortality benefit of evidence-based beta-blockers in HFrEF.','Use caution with renal impairment, older age, low body mass, hypokalemia/hypomagnesemia, interacting drugs, sinus-node disease, and AV block.'],note='Discuss digoxin as an adjunct in selected patients, never a replacement for foundational HFrEF treatment.') standard(20,'Digoxin toxicity and safe monitoring',['Typical toxicity: nausea, vomiting, anorexia, confusion, visual disturbance (yellow/blurred vision), bradycardia, AV block, atrial tachycardia with block, or ventricular arrhythmias.','Check renal function, potassium, magnesium, calcium, heart rate, ECG, and drug interactions. Serum level timing and targets follow local protocol.','Hypokalemia increases toxicity risk; amiodarone, verapamil, macrolides, and other drugs may raise levels.','Suspected severe toxicity or life-threatening arrhythmia requires urgent care; digoxin immune Fab may be indicated under specialist management.'],note='End with safety message: digoxin has a narrow therapeutic index. Never recommend a dose in a generic slide deck.') # sources slide s=prs.slides.add_slide(blank); title(s,21,'Key take-home points and sources'); card(s,.65,1.7,5.9,4.7,'TAKE-HOME POINTS','• Cardiomegaly is a sign, not a diagnosis.\n• Define the chamber pattern and cause with echocardiography.\n• ECG and radiography provide clues, but have limitations.\n• Treat the cause and the heart-failure/rhythm phenotype.\n• Beta-blockers are foundational in stable HFrEF; digoxin is selective and requires close monitoring.',TEAL); card(s,6.85,1.7,5.8,4.7,'SELECTED SOURCES','• Fuster & Hurst’s The Heart, 15th ed.: cardiac size; chest radiography; ECG.\n• Goldman-Cecil Medicine: radiographic assessment of heart size; digoxin.\n• 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure.\n• Images: indexed educational clinical images from PMC clinical VQA library.\n\nFor education only. Clinical decisions require clinician assessment and current local guidelines.',BLUE); footer(s); add_notes(s,'Summarize and invite questions. Cite 2022 AHA/ACC/HFSA: beta blockers are Class I in symptomatic HFrEF; digoxin may be considered to reduce HF admissions in selected patients.') # meta settings prs.core_properties.title='Cardiomegaly: causes, diagnosis, and treatment' prs.core_properties.author='Talha Khan' prs.core_properties.subject='Group 610A' prs.save(OUT) print(OUT) PY python "/tmp/workspace/cardiomegaly-ppt/src/create_ppt.py"

python - <<'PY' from pptx import Presentation from pathlib import Path p=Path('/tmp/workspace/cardiomegaly-ppt/output/Cardiomegaly_Talha_Khan_610A.pptx') print('exists',p.exists(),'bytes',p.stat().st_size) prs=Presentation(p) print('slides',len(prs.slides)) for i,s in enumerate(prs.slides,1): text=' | '.join(sh.text.replace('\n',' / ') for sh in s.shapes if hasattr(sh,'text_frame') and sh.text.strip()) print(i, text[:150]) PY