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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

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

Interventional versus conservative treatment for patients with unstable angina or non-ST-elevation myocardial

K A A Fox1, P A Poole-Wilson, R A Henderson

  • 1Cardiovascular Research, Department of Medical and Radiological Sciences, Royal Infirmary, Edinburgh EH3 9YW, UK. k.a.a.fox@ed.ac.uk

Lancet (London, England)
|September 21, 2002
PubMed

Insights

An early interventional strategy for unstable coronary-artery disease significantly reduces refractory angina compared to a conservative approach. This approach is preferable, showing no increased risk of death or myocardial infarction.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Acute Coronary Syndromes

Background:

  • Current guidelines offer both interventional and conservative strategies for moderate-risk unstable coronary-artery disease.
  • The optimal strategy for these patients remains a subject of investigation.

Purpose of the Study:

  • To compare the efficacy of an early interventional strategy versus a conservative strategy in patients with non-ST-elevation acute coronary syndromes.

Main Methods:

  • A randomized multicenter trial involving 1810 patients with non-ST-elevation acute coronary syndromes.
  • Patients were assigned to either an early intervention or a conservative strategy, both using enoxaparin.
  • Co-primary endpoints included a composite of death, myocardial infarction, or refractory angina at 4 months, and death or myocardial infarction at 1 year.

Main Results:

  • At 4 months, the intervention group showed a significantly lower rate of death, myocardial infarction, or refractory angina (9.6% vs. 14.5%, p=0.001).
  • This difference was primarily driven by a reduction in refractory angina.
  • At 1 year, the rates of death or myocardial infarction were similar between groups (7.6% vs. 8.3%, p=0.58).
  • The interventional strategy led to improved angina symptoms and reduced antianginal medication use.

Conclusions:

  • An early interventional strategy is preferable for patients with unstable coronary-artery disease.
  • This preference is mainly due to a significant reduction in refractory or severe angina.
  • The interventional strategy does not increase the risk of death or myocardial infarction.
Abstract

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