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J Cardiol Suppl. 1989;21:75-80, discussion 81-3.

[Systolic time intervals in mitral valve prolapse syndrome].

Journal of cardiology. Supplement

[Article in Japanese]
N Yazaki, H Niwayama, M Onishi, Y Sunami, Y Nishimoto, Y Masuda, Y Inagaki

Affiliations

  1. Third Department of Internal Medicine, Chiba University School of Medicine.

PMID: 2778645

Abstract

Systolic time intervals (STI) were measured in 135 patients with mitral valve prolapse syndrome (MVP). These patients were categorized as Group II (no or trivial mitral regurgitation) and Group III (moderate or severe regurgitation). The controls consisted of 120 normal subjects (Group I). The Group II patients tended to have increased ETc and shortened PEP. The Group III patients tended to have prolonged Q-I and decreased QIIc and ETc, reflecting mitral regurgitation. It was suggested that autonomic nervous system, especially sympathetic nerve, may play a role in changes of STI of the Group II patients.

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