Abstract
Isolated myocardial involvement in tuberculosis is exceedingly rare but there are reports it can present with sudden cardiac death, atrioventricular block, ventricular arrhythmias or congestive cardiac failure. We report the case of a 33-year-old male, of South Asian descent, who presented with chest pain, shortness of breath and an abnormal ECG. The patient had no significant past medical history and coronary angiogram showed no evidence of coronary artery disease. Of note, the patient had recently been discharged from a local district hospital with an episode of myocarditis. The patient was found to be severely hypoxic with evidence of severe biventricular failure on echocardiography. Computed tomography of the chest demonstrated hilar lymphadenopathy, and the differential diagnosis was thought to be tuberculosis or sarcoidosis. A TB Quantiferon gold test performed at the district hospital was positive; however, fine needle aspiration was negative for acid-fast bacilli. Despite aggressive diuresis, the patient became increasingly hypoxic and suffered a cardiac arrest. Post-mortem confirmed a diagnosis of myocardial tuberculosis–a rare case of acute decompensated heart failure.
Highlights
Tuberculosis (TB) rarely involves the heart but when it does most usually manifests as isolated pericarditis leading to a pericardial effusion or myopericarditis
Tuberculosis myocarditis is a rare diagnosis but should be considered in at risk individuals presenting with acute fulminant myocarditis
Mycobacterium tuberculosis remains a deadly disease with the ability to invade almost every organ of the body
Summary
Isolated myocardial involvement in tuberculosis is exceedingly rare but there are reports it can present with sudden cardiac death, atrioventricular block, ventricular arrhythmias or congestive cardiac failure. We report the case of a 33-year-old male, of South Asian descent, who presented with chest pain, shortness of breath and an abnormal ECG. The patient had recently been discharged from a local district hospital with an episode of myocarditis. The patient was found to be severely hypoxic with evidence of severe biventricular failure on echocardiography. A TB Quantiferon gold test performed at the district hospital was positive; fine needle aspiration was negative for acid-fast bacilli. Post-mortem confirmed a diagnosis of myocardial tuberculosis – a rare case of acute decompensated heart failure. Tuberculosis myocarditis is a rare diagnosis but should be considered in at risk individuals presenting with acute fulminant myocarditis
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