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Diagnosis of perioperative myocardial infarction after heart valve surgery with new cut-off point of high-sensitivity troponin T and new ECG or echocardiogram changes
Friday, February 17, 2017
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Source Name: JTCVS
These authors from Spain retrospectively analyzed a group of 805 patients undergoing isolated heart valve surgery in order to correlate levels of high-sensitivity troponin T (hs-cTnT) and CK-MB with whether a patient experienced a postoperative MI, as diagnosed by EKG and/or TTE.
In all, 88 patients (10.9%) met the criteria for MI. In comparing the non-MI to the MI patients, the authors found, by analyzing the Receiver Operating Characteristics (ROC), the following peak cut-off levels to distinguish whether a patient had a postop MI or not:
- hs-cTnT: >1057 pg/mL @ 16 hours
- CK-MB: >55 mg/dl @ 8 hours.
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