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  • Title: A clinical role for right ventricular endomyocardial biopsy.
    Author: Glazier JJ, Mortimer G, Daly KM.
    Journal: Ir Med J; 1989 Dec; 82(4):153-5. PubMed ID: 2621076.
    Abstract:
    There is considerable uncertainty about the value of endomyocardial biopsy (EMB) in the diagnosis and management of patients with suspected primary myocardial dysfunction. To determine the clinical utility of this procedure in patients referred to our centre, we reviewed the clinical records and biopsy findings of the first 21 consecutive patients in whom we performed right ventricular EMB. Patients were divided into four groups according to the clinical indications for EMB: unexplained congestive cardiac failure and a dilated heart (Group 1: 11 patients); unexplained congestive cardiac failure and a non dilated heart (Group 2: three patients); unexplained cardiomegaly in the absence of cardiac failure (Group 3: one patient); suspected hypertrophic cardiomyopathy (HCM) (Group 4: six patients). Histological examination of EMB tissue obtained from all patients in Group 1 as well as the single patient in Group 3 showed non specific features judged to be compatible with a diagnosis of dilated cardiomyopathy. Accordingly, in all patients in Groups 1 and 3, a potentially treatable cause of primary myocardial dysfunction was excluded. Biopsy examination demonstrated the presence of a specific disease process in two of three patients in Group 2 (one patient had amyloidosis, the other endomyocardial fibrosis). In five of the six patients in Group 4, the biopsy findings were either diagnostic or suggestive of HCM. Our results suggest that EMB is a clinically useful tool in patients presenting with features suggestive of a primary myocardial disorder.
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