RICHARD F. KEHOE, M.D.; ROBERT BAUERNFEIND, M.D.; CARL TOMMASO, M.D.; CHRISTOPHER WYNDHAM, M.D.; KENNETH M. ROSEN, M.D.
The clinical and electrophysiologic findings in four patients with biopsy-proven polymyositis and bifascicular block are described. Atrioventricular (AV) block developed in two of these four patients, and intracardiac electrophysiologic studies documented the site of spontaneous block to be distal to the His bundle in one, whereas in the second marked His-ventricular prolongation was found, and distal block developed at low paced atrial rates. Sinus node and AV nodal function were normal in all four. These electrophysiologic data provide the first documentation of the site of AV block in patients with polymyositis and correlate well with findings of previous pathologic studies that have shown extensive fibrosis of the distal His bundle and bundle branches.
Learn more about subscription options.
Register Now for a free account.
KEHOE RF, BAUERNFEIND R, TOMMASO C, WYNDHAM C, ROSEN KM. Cardiac Conduction Defects in Polymyositis: Electrophysiologic Studies in Four Patients. Ann Intern Med. 1981;94:41–43. doi: 10.7326/0003-4819-94-1-41
Download citation file:
Published: Ann Intern Med. 1981;94(1):41-43.
Cardiology, Rhythm Disorders and Devices.
Results provided by:
Copyright © 2017 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use
This PDF is available to Subscribers Only