[Relationship between the systolic-diastolic shock index and mortality in myocardial infarction].

BACKGROUND: In the emergency room, the shock index was applied to determine the prognosis in various pathologies, such as acute infarction. The shock index is the re-sult of dividing heart rate by the systolic blood pressure.

OBJECTIVE: To determine the relationship between the systolic shock index and the di-astolic shock index as prognostic factors for mortality in acute myocardial infarction with ST segment elevation prior to admission to the Hemodynamics Room.

MATERIAL AND METHODS: A prolective analytical cross-sectional study was carried out in patients who were admitted to the Hemodynamics Room for cardiac catheterization within a period of 5 months in 2022. The systolic shock index and diastolic shock index were included as independent variables and mortality was the dependent variable. SPSS, version 25, was used and Pearson's chi-square test was used as statistical test, with a p value < 0.05 being significant.

RESULTS: 162 patients were analyzed and showed a diastolic shock index > 1.2143 with a sensitivity of 62.5% and a specificity of 77.4% with a p < 0.05. Their systolic shock in-dex was > 0.8908 with a sensitivity of 45.8% and specificity of 91.2%, with a p < 0.05.

CONCLUSION: It was determined that both shock indices are related as mortality prognos-tic factors in acute myocardial infarction with ST elevation prior to admission to the He-modynamic Room.