Study challenges troponin threshold for flagging damage after cardiac surgery

Results confirm real-world experience that troponin spikes are expected after routine procedures, clinicians say

The levels of high-sensitivity troponin after cardiac surgery that signal an increased risk of death within 30 days are substantially higher than the currently recommended threshold, new research suggests.

Conventional wisdom states that cardiac troponin levels that are 10-70 times higher than the upper reference limit indicate a perioperative MI or clinically important periprocedural myocardial injury.

But according to the VISION (Vascular Events in Surgery Patients Cohort Evaluation) Cardiac Surgery group — which

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