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  • Title: [Endomyocardial biopsy in childhood--experiences in 60 pediatric patients].
    Author: Schmaltz AA, Apitz J, Hort W, Maisch B.
    Journal: Z Kardiol; 1987 Sep; 76(9):563-9. PubMed ID: 3321731.
    Abstract:
    In 60 pediatric patients, aged from 1 month to 22 years (median 3.54) and a bodyweight of 3 to 67 kg (median 12.6 kg) transvascular endomyocardial biopsy was performed from the right (35 patients) or left ventricle (30 patients). The specimens were investigated by light and electron microscopy. Immune serological investigations were performed in 22 patients, immune histological examinations in eight. There were three indications for biopsy: a. 29 children had a poorly functioning, dilated left ventricle. Of these, seven suffered from endocardial fibroelastosis, 16 from dilated cardiomyopathy, six (plus one control-biopsy) from healing/healed or chronic myocarditis. b. 17 children showed inadequate left ventricular hypertrophy. Of these, ten suffered from HCM, four from secondary hypertrophy, three from storage diseases. c. Various questions were answered in eight children - four with hypoxic, two with cytotoxic myocardial damage. There were five misindications, retrospectively. We observed no serious complications. Evaluation of biopsy revealed diagnostic findings in 11.7%, was helpful in 71.7% and of no help in 16.6%. Hence, even in childhood, endomyocardial biopsy is a diagnostic tool which can contribute useful information on the etiology or pathogenesis of the underlying myocardial disease.
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