Key result
Intracardiac electrophysiologic studies in 4 patients with polymyositis and bifascicular block documented the site of AV block to be distal to the His bundle.
Case Report (n=4)
Electrophysiologic studies in patients with polymyositis and bifascicular block demonstrate that AV block occurs distal to the His bundle, consistent with pathologic fibrosis.
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May suggest infranodal AV block in polymyositis; hypothesis-generating and should not yet change practice.
Richard Kehoe (1981) conducted a case report in Polymyositis and bifascicular block (n=4). Polymyositis was evaluated on Clinical electrophysiologic findings (site of AV block). Intracardiac electrophysiologic studies in 4 patients with polymyositis and bifascicular block documented the site of AV block to be distal to the His bundle.
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