A 23-year-old male collapses during intense exercise. Vital signs reveal HR 118/min, BP 92/58 mmHg, RR 22/min, SpO2 94% on room air. ECG demonstrates T-wave inversions in V1–V3 with epsilon waves at the QRS terminus. Transthoracic echocardiography shows right ventricular dilation with preserved left ventricular function. Troponin I is normal. He denies syncope at rest or palpitations with exertion previously. Which of the following is the most likely diagnosis?
- A)Hypertrophic cardiomyopathy
- B)Brugada syndrome
- C)Arrhythmogenic right ventricular cardiomyopathyGABARITO
- D)Acute myocarditis
- E)Restrictive cardiomyopathy due to amyloid
Explicação
Arrhythmogenic right ventricular cardiomyopathy is characterized by fibrofatty replacement of right ventricular myocardium and predisposes to ventricular arrhythmias and sudden death in young adults. Epsilon waves and right precordial T-wave inversions are cla... Ver explicação completa e trilha adaptativa →