Elevación del segmento ST y factores asociados en adultos mayores con síndrome coronario agudo en cuidados intensivos

Introduction: Acute coronary syndrome poses particular challenges in older adults, and identifying factors associated with ST-segment elevation may guide preventive and clinical research. Objective: To identify factors associated with ST-segment elevation acute coronary syndrome compared with non-ST-segment elevation presentations among patients aged 60–80 years admitted to intensive care. Methods: Observational, retrospective, analytical cross-sectional study of 36 records from the Dominican Institute of Cardiology, January–July 2022. Odds ratios, 95% confidence intervals, Fisher exact tests, and Cramér V were estimated. Logistic regression was adjusted for age, sex, and hypertension; Firth regression was used as sensitivity analysis. Results: ST-segment elevation occurred in 36.1%. Smoking recorded in the medical record was more frequent in STEMI than in non-ST-elevation presentations (84.6% vs 26.1%) and was associated in bivariate analysis (OR = 15.58; 95% CI: 2.65–91.57; p = 0.0014), the adjusted model (aOR = 25.24; 95% CI: 3.27–194.55; p = 0.0019), and Firth analysis (aOR = 15.07; 95% CI: 2.39–94.97; p = 0.0039). Conclusions: Smoking recorded in the medical record was associated with higher odds of ST-segment elevation. The small sample, convenience selection, and imprecision require an exploratory interpretation.