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Effects of Cilostazol on Heart Rate and Neurohumoral Factors for Sick Sinus Syndrome: A case report Takao Nakahara 1 , Yoshifumi Takata 1 , Genzo Shiokawa 1 , Toyoyuki Okubo 1 , Akira Yamashina 1 1The Second Department of Internal Medicine, Tokyo Medical University Keyword: シロスタゾール , 洞機能不全症候群 , ナトリウム利尿ペプチド , cilostazol , sick sinus syndrome(brady-arrhythmia) , natriuretic peptides pp.95-99
Published Date 2001/1/15
DOI https://doi.org/10.11477/mf.1404902231
  • Abstract
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 A case of sick sinus syndrome remarkably relieved byadministration of cilostazol was described. A 74-year-old man was admitted to our hospital presenting withvertigo and headache. Holter electrocardiogramrevealed marked sinus brady-arrhythmia with escapedjunctional rhythm (total heart beats of 61,000/day).Two weeks later, the patient had a sudden attack ofcerebral infarction, and an antithrombotic agent. cilostazol (200mg/day) was administrated to prevent reccurent attacks. Cilostazol increased the heart rate remarkably (total heart beats of 89,000/day) with the consequence that plasma concentration of natriuretic peptides, which are potent biochemical makers of cardiacoverload, remarkably decreased. After an interruptionof cilostazol administration, the heart rate decreasedand these plasma concentrations increased again. Theincrease of heart rate accompanied by an improvementin neurohumoral factors indicated the efficacy of cilostazol to reduce the cardiac overload in this patient. Apossible role of cilostazol in the treatment of bradyarrhythmia was suggested.


Copyright © 2001, 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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