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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

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Coronary angiography or not after cardiac arrest without ST segment elevation: A systematic review and meta-analysis

Meng-Chang Yang1,2, Wu Meng-Jun3, Xu Xiao-Yan3

  • 1Department of Anesthesiology, West China Hospital, Sichuan University.

Medicine
|October 8, 2020
PubMed

Insights

Immediate coronary angiography (CAG) significantly improves survival and neurological function in out-of-hospital cardiac arrest (OHCA) patients without ST segment elevation, according to this meta-analysis. Early CAG offers a survival benefit until discharge for OHCA survivors.

Area of Science:

  • Cardiology
  • Emergency Medicine
  • Critical Care

Background:

  • Out-of-hospital cardiac arrest (OHCA) is a critical medical emergency with high mortality.
  • The optimal timing for coronary angiography (CAG) in OHCA patients without ST-segment elevation remains debated.
  • Early intervention may improve patient outcomes, but evidence needs synthesis.

Purpose of the Study:

  • To evaluate the necessity and impact of immediate coronary angiography (CAG) on outcomes for OHCA patients without ST-segment elevation.
  • To synthesize existing evidence on the benefits of early versus delayed or no CAG in this patient population.

Main Methods:

  • A systematic meta-analysis of observational and case-control studies.
  • Searched multiple databases including Web of Science, PubMed, Embase, CNKI, Wanfang, and SinoMed.
  • Included studies comparing immediate, delayed, or no CAG in OHCA patients without ST-segment elevation.

Main Results:

  • Immediate CAG was associated with significantly increased survival benefit until discharge (OR=1.78, P<.0001).
  • Early CAG significantly preserved neurological function at discharge (OR=1.66, P<.00001).
  • No significant survival benefit was observed with early CAG during middle-term follow-up (OR=1.21, P=.15).

Conclusions:

  • Performing immediate coronary angiography (CAG) may offer significant benefits for out-of-hospital cardiac arrest (OHCA) patients without ST-segment elevation.
  • Early CAG improves short-term survival and neurological outcomes.
  • Further research may clarify long-term benefits.
Abstract

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