Hyperthyroidism as a rare cause of complete AV block
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(1). Multislice computed tomography (CT) may be useful for detecting myocardial fat infiltration and diagnosing ARVC (1-3). Because of its excellent spatial and temporal resolution, CT has received much attention in diagnosing of ARVC. It has been reported that CT findings of ARVC are (a) a dilated right ventricle, b) abundant epicardial adipose tissue, (c) conspicuous trabeculations with low attenuation, (d) a scalloped appearance of the right ventricular free wall, and (e) intramyocardial fat deposits (1, 2). Coronary artery fistula is an uncommon clinical entity with an incidence in selected series ranging from 0.26% to 0.40% of congenital cardiac anomalies. Many adults are asymptomatic if the fistulae are small. Symptoms of fatigue, dyspnea, angina (due to “steal” phenomenon), atrial arrhythmia, signs of congestive heart failure, pulmonary hypertension or infective endocarditis are seen. In one report, patients older than 20 years had dyspnea on exertion (35%), fatigue (8%) or angina (22%). Conversely, only 9% of those <20 years of age had had such symptoms (4, 5).
SourceAnadolu Kardiyoloji Dergisi