Progressive familial heart block type I. Clinical and pathological observations

Van Der Merwe P.-L. ; Rose A.G. ; Van Der Walt J.J. ; Weymar H.W. ; Hunter J.C. ; Weich H.F.H. (1991)

Article

The original publication is available at http://www.samj.org.za

Article

Progressive familial heart block type I (PFHB-I) is an autosomal inherited disease. It was previously postulated that the disease is limited to the cardiac conduction tissue. The presentation of a patient with dilated cardiomyopathy focused on the possibility that this might be part of PFHB-I. This observation led to routine echocardiographic examination of patients with complete heart block, who belonged to PFHB-I families, and another 5 cases with signs of dilated cardiomyopathy were identified. This is the first time, to our knowledge, that the histological picture of PFHB-I has been described. From these case reports it is clear that in the presence of a dilated cardiomyopathy the prognosis in PFHB-I tends to be poor.

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