High mortality rates in conservatively managed patients with acute coronary syndrome

Erlend Aune1, Jøran Hjelmesaeth, Keith A A Fox

  • 1Department of Cardiology, Vestfold Hospital, Tønsberg, Norway. erlend.aune@siv.no

Insights

This study found higher one-year mortality rates in acute coronary syndrome (ACS) patients, particularly ST-elevation myocardial infarction (STEMI) and Non-ST-elevation myocardial infarction (NSTEMI) groups, compared to typical registry data. Conservative management strategies may contribute to these outcomes.

Area of Science:

  • Cardiology
  • Clinical Research
  • Public Health

Background:

  • Revised diagnostic criteria for acute coronary syndrome (ACS) necessitate updated data on treatment and outcomes.
  • Understanding the distinct outcomes for ST-elevation myocardial infarction (STEMI), Non-ST-elevation myocardial infarction (NSTEMI), and Unstable angina pectoris (UAP) is crucial.

Purpose of the Study:

  • To analyze treatment patterns and one-year mortality rates across different categories of acute coronary syndrome (ACS).
  • To compare outcomes in ACS patients with non-coronary chest pain and coronary heart disease without ACS.

Main Methods:

  • A prospective study registered 755 consecutive patients admitted with suspected ACS.
  • Patients were categorized into five groups: STEMI, NSTEMI, UAP, coronary heart disease (CHD) without ACS, and non-coronary chest pain.
  • One-year all-cause mortality was tracked for each group.

Main Results:

  • One-year mortality rates were 20% for STEMI, 32% for NSTEMI, 7% for UAP, 10% for CHD without ACS, and 3% for non-coronary chest pain.
  • Immediate reperfusion therapy was given to 61% of STEMI patients (18:1 thrombolysis to primary PCI ratio).
  • Only 3% of NSTEMI patients received PCI within two days.

Conclusions:

  • The one-year mortality rate in this conservatively managed ACS population is significantly higher than reported in most registries and clinical trials.
  • These findings highlight potential areas for improvement in ACS management and treatment strategies.
Abstract

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