Impact of Magnesium Sulfate on ICU Mortality in Acute Myocardial Infarction Patients

A retrospective cohort study of 5,650 critically ill patients with acute myocardial infarction from the MIMIC-IV v3.1 database. The research, authored by Guibao Jiang and last updated in May 2026, analyzes the association between intravenous magnesium sulfate administration and ICU mortality using multivariable Cox regression and propensity score matching. It identifies a 45% reduction in mortality risk and explores dose-response relationships.

Use Cases

• Evaluating the efficacy of magnesium sulfate as a cardioprotective agent based on the described mortality endpoint.
• Training predictive models for ICU mortality risk based on treatment administration and patient cohort characteristics.
• Conforming dose-response relationship analyses for critical care therapeutics based on the reported cumulative dose and duration findings.
• Assessing the robustness of observational study conclusions to unmeasured confounding using the E-value methodology described.

Strengths

• Study includes 5,650 patient records, providing a substantial cohort size.
• Employs multiple rigorous statistical methods: multivariable Cox regression, propensity score matching, and propensity score weighting.
• Reports specific quantitative findings, including a hazard ratio of 0.55 and a restricted mean survival time benefit of 1.64 days.
• Explicitly evaluates potential unmeasured confounding with an E-value of 2.66.

Limitations

• Dataset size is 556.9 KB, indicating a very limited scope, likely containing summary results rather than raw patient-level data.
• Column-level documentation is absent; field semantics must be inferred from the study description.
• Data is sourced from a single-center database (Beth Israel Deaconess Medical Center), which may limit generalizability.

Provenance

Source

Medical Information Mart for Intensive Care-IV version 3.1 (MIMIC-IV v3.1) database.

Collection Method

Retrospective cohort study.

Freshness

Last updated 2026-05-25 06:03:30; freshness should be verified.

Geography

Beth Israel Deaconess Medical Center, USA.