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Choi, Kim, Rho, and Kim: A Case of Paroxysmal Atrioventricular Block Complicating Takayasu's Arteritis
Case Report
Korean Circulation Journal

Korean Circulation Journal 1994; 24(5): 717-721.

Published online: 31 October 1994

DOI: https://doi.org/10.4070/kcj.1994.24.5.717

A Case of Paroxysmal Atrioventricular Block Complicating Takayasu's Arteritis

Jong Young Choi, M.D., Hee Yeol Kim, M.D., Tai Ho Rho, M.D., Jae Hyung Kim, M.D.

Copyright © 1994 The Korean Society of Circulation

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Takayasu's arteritis is briefly as an inflammatory process of unknown etiology occuring dominantly in young female most commonly involving the great vessels arising from the aortic arch. The disease process results in stenosis and obliteration of involved vessels. Syncope in Takayasu's arteritis is known to result from decreased blood flow to brain because of stenosing blood vessels.
We herein describe a case of paroxysmal atrioventricular block in a 40-year old man with Takayasu's arteritis. The patient presented with spontaneous recurrent syncope associated with paroxysmal AV block. Carotid sinus pressure repeatedly induced paroxysmal AV block and syncope. Carotid sinus pressure after pretreatment of atropine failed to induce AV block or syncope. Coronary angiogram was normal. We concluded that syncope in this patients was attributed to carotid hypersensitivity rather than decreased blood flow to the brain due to vessel stenosis.

Keywords: Takayasu's arteritis, Paroxysmal AV block, Carotid sinus hypersensitivity

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