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ASSOCIATION OF GENDER WITH STENT THROMBOSIS AND SHORT-TERM MAJOR ADVERSE CARDIOVASCULAR EVENTS IN PATIENTS UNDERGOING PRIMARY PERCUTANEOUS CORONARY INTERVENTION

Objectives: Gender has been reported to be an independent predictor of stent thrombosis (ST), however, very limited data are available regarding gender disparities in the incidence of ST after primary percutaneous coronary intervention (PCI). Therefore, the objective of this study was to compare the incidence of ST among males and females after primary PCI.
Methodology: In this study, we included consecutive patients diagnosed with ST-elevation myocardial infarction undergoing primary PCI. The incidence of ST and short-term major adverse cardiovascular events (MACE) were compared between male and female cohorts.
Results: The gender distribution was 21% (368) female and 79% (1388) male patients. In the unmatched cohorts of females and males, the incidence of ST was 3.3% (12) vs. 5.3% (74); p=0.102, respectively. Short-term all-cause mortality rate was 12.2% (45) vs. 8.6% (119); p=0.032 among female and male patients, respectively. After propensity matching of the baseline characteristics, the incidence of stent thrombosis was 3.3% (12) vs. 4.9% (18); p=0.263 among females and male counterparts, respectively. The short-term all-cause mortality rate was 12.2% (45) vs. 10.6% (39); p=0.487 among female and propensity-matched male cohorts, respectively.
Conclusion: There are no gender-based disparities in the incidence of ST as well as short-term MACE after primary PCI. The gender of the patient itself does not determine the prognosis of the patient, but longer ischemic time, older age, and consequently higher burden of risk factors confound the effect of the female gender.