Key result
Perioperative ST-segment changes occur in ~4% of moderate-risk noncardiac surgery patients without subsequent cardiovascular symptoms.
Why the study?
Does intraoperative and early postoperative continuous electrocardiographic monitoring improve detection of occult coronary artery disease in asymptomatic moderate-risk patients undergoing noncardiac surgery?
Cohort (n=190)
No
Does intraoperative and early postoperative continuous electrocardiographic monitoring improve detection of occult coronary artery disease in asymptomatic moderate-risk patients undergoing noncardiac surgery?
Perioperative ST-segment changes are rare in moderate-risk asymptomatic patients undergoing noncardiac surgery and do not reliably indicate occult coronary artery disease.
Answers are grounded in this paper and cite their sources.
Continuous ECG monitoring detects few events without symptoms in moderate-risk noncardiac surgery; leaves open targeted use for occult CAD in higher-risk groups.
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Fleisher et al. (1997) conducted a cohort in Moderate risk for coronary artery disease (n=190). Perioperative ST-segment changes vs. No ST-segment changes was evaluated on Significant ST-segment changes during the intraoperative or early postoperative period. Perioperative ST-segment changes occurred in only 7 of 190 (3.7%) moderate-risk patients undergoing noncardiac surgery, with no cardiovascular symptoms observed during 24-month follow-up.
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