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Characteristics of patients with cardiac arrest caused by coronary vasospasm

Nobuaki Kobayashi1, Noritake Hata, Tetsuro Shimura

  • 1Division of Intensive Care Unit, Chiba-Hokusoh Hospital, Nippon Medical School, Tokyo, Japan. s5047@nms.ac.jp

Circulation Journal : Official Journal of the Japanese Circulation Society
|December 5, 2012
PubMed

Insights

Coronary vasospasm (CVS) is a significant cause of out-of-hospital cardiac arrest (OHCA). Patients experiencing cardiac arrest due to CVS often exhibit distinct characteristics, necessitating careful diagnosis.

Area of Science:

  • Cardiology
  • Emergency Medicine
  • Clinical Research

Background:

  • Coronary vasospasm (CVS) is recognized as a potential cause of out-of-hospital cardiac arrest (OHCA).
  • However, the specific clinical characteristics differentiating patients with OHCA due to CVS have remained unclear.

Purpose of the Study:

  • To clarify the characteristics of patients experiencing OHCA attributed to CVS.
  • To determine the prevalence of CVS as a cause of OHCA.

Main Methods:

  • Study 1: Retrospective analysis of 1,000 OHCA patients to determine the prevalence of CVS-related OHCA.
  • Study 2: Comparison of 138 CVS patients, divided into those with (n=12) and without (n=126) cardiac arrest.

Main Results:

  • In Study 1, 9 out of 121 successfully resuscitated OHCA patients had CVS as the cause.
  • Study 2 revealed that patients with cardiac arrest due to CVS were more likely to experience events during vigorous exertion, in daytime, and without preceding chest pain compared to non-arrest CVS patients.

Conclusions:

  • Coronary vasospasm is an important, often underdiagnosed, cause of OHCA.
  • Distinct clinical features differentiate CVS patients with cardiac arrest from those without, highlighting the need for targeted diagnostic considerations.
Abstract

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