Key result
New Q-waves after coronary surgery (8.1% incidence) were not associated with significantly different CK-MB or troponin-T levels, with >25% having normal troponin-T on postoperative day 4.
Why the study?
Are new Q-wave criteria on ECG reliable for the diagnosis of perioperative myocardial infarction in patients undergoing coronary surgery?
Observational (n=302)
Single-blind
Are new Q-wave criteria on ECG reliable for the diagnosis of perioperative myocardial infarction in patients undergoing coronary surgery?
New Q-waves after coronary surgery are often not associated with major myocardial tissue damage or short-term clinical outcomes, challenging their use as the gold standard for diagnosing perioperative myocardial infarction.
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New Q-waves may not indicate perioperative MI after coronary surgery; hypothesis-generating for validated diagnostic criteria.
Svedjeholm et al. (1998) conducted an observational in Perioperative myocardial infarction after coronary surgery (n=302). New Q-waves on electrocardiogram vs. Absence of new Q-waves was evaluated on Biochemical markers of myocardial injury (CK-MB or troponin-T levels) and clinical outcome. New Q-waves after coronary surgery (8.1% incidence) were not associated with significantly different CK-MB or troponin-T levels, with >25% having normal troponin-T on postoperative day 4.
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