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Electrophysiologic and hemodynamic effects of Diltiazem Jun Umemura 1 , Hiroshi Kasanuki 1 , Satoshi Ohnishi 1 , Etsuko Tanaka 1 , Nobuhisa Hagiwara 1 , Yumiko Hagiwara 1 , Takashi Nirei 1 , Koshichi Hiroawa 1 1Tokyo Women's Medical College, The Heart Institute of Japan pp.303-307
Published Date 1986/3/15
DOI https://doi.org/10.11477/mf.1404204839
  • Abstract
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Electrophysiologic and hemodynamic studies were performed in 18 patients (SSS 10 cases) who were administered diltiazem (10mg or 20mg) intraven-ously and were compared with those studies of patients administered verapamil (5mg).

In electrophysiologic study, diltiazem extended SSS patients' P-P interval, Sinus node Recovery Time and Effective Refractory Period of atrium. These tendencies were similar in verapamil. Diltia-zem extended non-SSS patients' P-P interval but verapamil did not. In non-AV block patients. both drugs extended A-H interval and ERP of AV node. But H-V interval was not changed by either drugs.

In hemodynamic study, diltiazem and verapamil decreased mean femoral arterial pressure and Total Systemic Resistance. And both drugs increased mean pulmonary arterial pressure and Cardiac Index. Diltizem increased Stroke Index and Total Pulmonary Resistance but verapamil did not change these parameters.


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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