MBBS OSCE · cardiology
OSCE — Arrhythmogenic Cardiomyopathy
Eight-minute OSCE station on Arrhythmogenic Cardiomyopathy: focused history, examination priorities, investigations, emergency and definitive management.
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Brief (to candidate)
You will assess a patient with a presentation consistent with Arrhythmogenic Cardiomyopathy.
You have 8 minutes to take a focused history, outline examination, investigations, and management including red flags.
Clinical context
Arrhythmogenic cardiomyopathy (ACM) is an inherited heart-muscle disease in which progressive fibro-fatty replacement of ventricular myocardium (classically the right ventricle) produces ventricular arrhythmias, heart failure and sudden cardiac death (SCD) in apparently healthy young people — most notably competitive athletes. Inheritance is usually autosomal dominant and the genes are predominantly desmosomal (PKP2 plakophilin-2, DSP desmoplakin, DSG2 desmoglein-2, DSC2 desmocollin-2, JUP plakoglobin); non-desmosomal genes include TMEM43, LMNA, PLN, DES, CDH2, SCN5A, CTNNA3. The ECG hallmark is the epsilon wave (a low-amplitude deflection at the end of the QRS in V1-V3) with T-wave inversion in V1-V3 in the absence of complete right bundle branch block; diagnosis uses the 2010 Modified Task Force Criteria, extended to the left ventricle by the 2020 Padua criteria. Management is restriction from competitive and high-intensity sport, a beta-blocker first-line, an ICD chosen by risk category, and catheter ablation for drug-refractory ventricular tachycardia.[1][3][4]
Candidate tasks
- Clarify onset, severity, associated features, and red-flag symptoms.[1]
- State focused examination priorities.
- List first-line investigations and any named score/criteria.
- Give immediate resuscitation steps.
- Outline definitive management with doses/routes where standard.
- Name complications and disposition (ward / HDU / theatre / discharge safety-net).
- Mention one special-population modifier (pregnancy, child, elderly, CKD).
Examiner checklist
| Domain | Pass behaviours |
|---|---|
| Definition | Correct working diagnosis language |
| Assessment | Focused, prioritised, red flags sought |
| Investigations | Appropriate first-line + interpretation |
| Emergency care | ABC / time-critical actions first |
| Definitive care | Specific drugs/procedures, not generic phrases |
| Safety | Young athlete with palpitations, syncope or near-syncope during exertion - consi |
| Safety | Epsilon waves, T-wave inversion V1-V3 (without RBBB) and RV outflow-tract ectopy |
| Safety | Survivor of sudden cardiac arrest with structurally abnormal RV or biventricular |
| Communication | Clear plan and safety-netting |
Model outline
Lead with the working diagnosis and life threats. Resuscitate before definitive tests when unstable. Use guideline-standard therapy with named agents and doses. Document escalation criteria and follow-up. A safe candidate is specific, structured, and never delays critical care for non-urgent imaging.[2][4]
References4ShowHide
- [1]Marcus FI, McKenna WJ, Sherrill D, et al. Diagnosis of arrhythmogenic right ventricular cardiomyopathy/dysplasia: proposed modification of the task force criteria Circulation, 2010.PMID 20172911
- [2]Zeppenfeld K, Tfelt-Hansen J, de Riva M, et al. 2022 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death Eur Heart J, 2022.PMID 36017572
- [3]Corrado D, Perazzolo Marra M, Zorzi A, et al. Diagnosis of arrhythmogenic cardiomyopathy: The Padua criteria Int J Cardiol, 2020.PMID 32561223
- [4]Iezzi L, Sorella A, Galanti K, et al. Arrhythmogenic cardiomyopathy diagnosis and management: a systematic review of clinical practice guidelines and recommendations with insights for future research Eur Heart J Qual Care Clin Outcomes, 2025.PMID 40386976