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The Revised Cardiac Risk Index (RCRI; NEJM JW Gen Med Oct 1 1999 and Circulation 1999; 100:1043) predicts postoperative adverse cardiac events after noncardiac surgery; however, its applicability to patients undergoing high-risk spinal surgeries has not been demonstrated. Investigators used data from the National Surgical Quality Improvement Program (from 2006–2014) to compare RCRI scores and outcomes — 30-day mortality and adverse cardiac events — among 52,000 patients who underwent posterior lumbar decompression (PLD).
Most patients (98%) had RCRIs of 0 or 1. Thirty-day risk for myocardial infarction (MI), cardiac arrest, or death was 0.1% among patients with RCRIs of 0, ≈0.3% among those with RCRIs of 1, and 0.5% to 0.8% among those with …