Ischemia time and post-infarction complications dataset in patients with ST-elevation myocardial infarction (STEMI)

This dataset contains anonymized clinical data from patients diagnosed with ST-elevation myocardial infarction (STEMI) treated at Hospital General Regional No. 12 in Mérida, Yucatán, Mexico.

The dataset was generated as part of a retrospective observational analytical study designed to evaluate the association between total ischemia time (TTI) and the development of clinical complications within 30 days following myocardial infarction.

Total ischemia time was defined as the interval from symptom onset to effective reperfusion therapy, either through primary percutaneous coronary intervention or fibrinolytic therapy.

Clinical variables include demographic characteristics, comorbidities, total ischemia time, and multiple cardiovascular complications recorded within the first 30 days after the ischemic event.

The study included patients diagnosed with STEMI between July and December 2024, and statistical analysis included descriptive statistics, chi-square tests, Student’s t-test, and binary logistic regression to evaluate associations between ischemia time and complications.

This dataset supports reproducibility of the analyses presented in the associated thesis and enables further epidemiological analysis, predictive modeling, and quality-of-care assessments in cardiovascular emergency medicine.

The study design was retrospective, observational, and cross-sectional, based on medical record review.

Study Design

Retrospective observational cross-sectional analytical study.

Study Population

41 patients diagnosed with STEMI.

Study Period

July to December 2024.

Study Site

Hospital General Regional No. 12Mérida, Yucatán, Mexico

Variables Description (general version)

The dataset includes demographic, clinical, exposure, and outcome variables collected from patients diagnosed with ST-elevation myocardial infarction (STEMI).

Variables were grouped into clinically relevant domains to evaluate the association between total ischemia time and the development of complications.

The dataset includes:

Demographic variables, including patient age and sex.

Clinical variables, including comorbidities such as diabetes mellitus, hypertension, chronic kidney disease, chronic obstructive pulmonary disease, and obesity.

Anthropometric variables, including body mass index (BMI).

Exposure variables, including total ischemia time measured in minutes and categorized into optimal (≤120 minutes) and prolonged (≥121 minutes).

Outcome variables, including the presence or absence of complications within 30 days after myocardial infarction.

Specific complication variables, including heart failure, arrhythmias, cardiogenic shock, reinfarction, mural thrombus, systemic embolism, pericarditis, myocardial rupture, ventricular aneurysm, and in-hospital mortality.

These variables were selected based on clinical relevance and prior evidence demonstrating the importance of ischemia time in determining cardiovascular outcomes.