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  • Title: Apical hypertrophic cardiomyopathy might lead to misdiagnosis of ischaemic heart disease.
    Author: Duygu H, Zoghi M, Nalbantgil S, Ozerkan F, Akilli A, Akin M, Onder R, Erturk U.
    Journal: Int J Cardiovasc Imaging; 2008 Oct; 24(7):675-81. PubMed ID: 18373279.
    Abstract:
    PURPOSE: In this study, demographic, clinic, electrocardiographic and angiographic properties of patients, on whom coronary angiography was performed with the pre-diagnosis of coronary artery disease (CAD) and whose ventriculography demonstrated typical apical hypertrophic cardiomyopathy (AHCM), were investigated. METHODS: Seventeen patients (mean age 58 +/- 10 years, 10 male) with CAD pre-diagnosis, on whom coronary angiography was performed and had typical spade-like appearance on left ventriculography, were included in the study between January 2000 and May 2005. RESULTS: As risk factor for CAD, 8 (47%) patients had hypertension, 8 (47%) patients had dyslipidaemia, 2 (11%) patients had type 2 diabetes mellitus, 13 (77%) patients had a history of smoking, and 2 (11%) patients had family history. Seven (42%) patients presented unstable angina pectoris, 8 (47%) patients presented stable angina pectoris and 2 (11%) patients were asymptomatic. On coronary angiography, it was determined that 10 (58%) patients had normal coronary arteries, 3 (17%) patients had non-significant stenosis and 4 (25%) patients had myocardial bridging. Five (30%) patients revealed mid-ventricular obstruction and intraventricular gradient was 25 +/- 5 mmHg by the catheterization. All patients showed ''giant'' negative (> or = 10 mm) T waves in the precordial leads, whereas 2 patients had atrial fibrillation. Maximum wall thickness was measured as 18 +/- 4 mm in the apical region by transthoracic echocardiography. One patient (5%) who had mid-ventricular obstruction developed atrial fibrillation during 2 years follow-up, though any other events did not occur during hospitalization or follow-up period. CONCLUSIONS: Physicians caring for patients with chest pain should consider AHCM in their differential diagnosis in case of a patient with chest pain and electrocardiographic changes suggestive of CAD.
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