Sarcopenia, known as physical frailty, is highly prevalent in older patients and is related to adverse outcomes after cardiac surgery.

However whether sarcopenia assessment can reclassify an individual patient’s risk, which is estimated by Society of Thoracic Surgeons–predicted risk of mortality scores in patients who undergo surgical aortic valve replacement, is unclear.

This retrospective, single-center, cohort study comprised 874 patients aged ≥65 years who underwent surgical aortic valve replacement between 2009 and 2016.

Total skeletal muscle area was calculated using height squared (cm2/m2) and was measured by preoperative computed tomography at the third lumbar vertebra inferior border using machine learning–based analysis.

Sex-specific Z-scores were calculated, and patients in the lowest Z-score tertile were considered to have sarcopenia. The primary endpoint was 30-day mortality, and secondary endpoints were in-hospital events, 1-year mortality, and long-term mortality.

בשל "הגנת זכויות יוצרים" מובא להלן קישור לתקציר המאמר. לקריאתו בטקסט מלא, אנא פנה/י לספרייה הרפואית הזמינה לך.