Acute myocardial infarction due to left main coronary artery disease: a large multicenter national registry

Area of Science:

• Cardiology
• Interventional Cardiology
• Clinical Research

Background:

• Optimal management for acute myocardial infarction (MI) from unprotected left main coronary artery (ULMCA) stenosis is unclear.
• Observational data suggest percutaneous coronary intervention (PCI) may benefit high-risk patients.
• This study examined gender differences in acute MI patients with ULMCA as the infarct-related artery.

Purpose of the Study:

• To investigate gender-related discrepancies in clinical course and prognosis.
• To evaluate mortality rates in patients with acute MI and ULMCA stenosis.
• To identify prognostic factors influencing outcomes in this patient population.

Main Methods:

• A cohort of 643 patients (28.6% female) with acute MI due to critical ULMCA stenosis was analyzed.
• Data were extracted from 121,526 patients hospitalized for acute coronary syndromes (2003-2006).
• Primary endpoints included in-hospital, 30-day, 6-month, and 12-month mortality.

Main Results:

• Women were older and had a higher proportion of unfavorable risk profiles compared to men.
• Clinical management and mortality rates showed no significant gender-related differences across all follow-up periods.
• Multivariate analysis identified cardiogenic shock, pulmonary edema, STEMI, and advanced age as mortality predictors, while successful PCI reduced mortality.

Conclusions:

• No significant differences in clinical course, treatment, or prognosis were observed between men and women.
• Mortality rates were high in both genders.
• Cardiogenic shock, pulmonary edema, STEMI, and advanced age were the most significant negative prognostic factors; PCI proved feasible with high success rates.