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oa Cardiovascular Journal of Africa - The effort test as diagnostic aid in progressive familial heart block type I

Volume 3, Issue 4
  • ISSN : 1995-1892

 

Abstract

Progressive familial heart block (PFHB) is an autosomal dominant inherited disorder that is usually asymptomatic. Affected members of such families are diagoosed on any of the foUowing electrocardiographic features: sinus bradycardia (SB), right bundle-branch block (RBBB), left anterior or left posterior hemlblocks, second-degree atrioventricular (A V) blocks aod complete beart block with broad or narrow QRS complexes. The aim of this study was to evaluate the effort test as a diagnostic aid to identity PFHB family members at risk. Seventy-nine pFHB members were subjected to an effort test (38 witb abnormal electrocardiograms (ReGs) and 41 with normal ECGs at rest). The commonest finding was the Inability of a significant number of members with abnormal ECGs to reach their target heart rate (X"" P < 0,05). Other ECG changes were also commoner in this group (Xl, p <0,0(5).

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/content/cardio1/3/4/AJA10159657_235
1992-08-01
2017-03-24

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