Supplementary file 1_Association between intraoperative hypotension and myocardial injury

175 patients (12.0%) experienced myocardial injury after non-cardiac surgery (MINS) in a cohort of 1,461 patients undergoing major open abdominal surgery. This dataset, authored by Haiying Ji and published on figshare under CC-BY-4.0, contains results from a single-center retrospective cohort study conducted between June 2016 and July 2019. It models the association between the severity and duration of intraoperative hypotension and MINS using multiple absolute and relative mean arterial pressure thresholds.

Use Cases

• Modeling the dose-response relationship between hypotension duration and myocardial injury risk based on multiple blood pressure thresholds.
• Validating clinical definitions of intraoperative hypotension against postoperative troponin levels.
• Comparing the predictive consistency of absolute versus relative blood pressure thresholds for adverse surgical outcomes.

Strengths

• Study includes 1,461 patients meeting inclusion criteria from an initial screening of 8,281 patients.
• Analysis uses six distinct thresholds (three absolute, three relative) for defining intraoperative hypotension.
• Results include specific odds ratios with confidence intervals for different hypotension durations, such as 3.81 (95% CI 2.20–6.61) for ≥21 minutes at MAP ≤60 mmHg.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect single-center bias inherent to the study design.

Provenance

Source

figshare

Collection Method

Single-center retrospective cohort study with invasive blood pressure monitoring.

Time Range

June 2016 to July 2019

Freshness

Last updated 2026-05-05 05:28:40; freshness should be verified.