A new study in JAMA finds that postoperative Troponin T (TnT) tests can independently improve 30 day mortality risk assessment among patients who have had noncardiac surgery. The VISION (Vascular Events in Noncardiac Surgery Patients Cohort Evaluation) study investigators evaluated the prognostic power of postoperative fourth-generation TnT testing in 15,133 patients. Overall mortality at 30 days was…

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