Risk factors for unfavorable prognosis in patients with coronary artery disease and age-related disorders undergoing coronary artery bypass grafting

Highlights. Patients with coronary artery disease and age-related disorders (sarcopenia, osteopenic syndrome, osteosarcopenia) who underwent elective on-pump coronary artery bypass grafting are at higher risk of developing cardiovascular complications, non-infectious complications, and death.Musculoskeletal disorders (sarcopenia, osteopenic syndrome, osteosarcopenia) in combination with traditional predictors (age, diabetes mellitus, prior myocardial infarction and stroke, cancer) are risk factors for unfavorable prognosis of postoperative period of coronary artery bypass grafting. Aim. To assess risk factors for unfavorable prognosis in patients with coronary artery disease (CAD) undergoing elective on-pump coronary artery bypass grafting, taking into account age-related disorders (sarcopenia, osteopenic syndrome, osteosarcopenia).Methods. This single-center study included 387 CAD patients admitted for elective coronary artery bypass grafting. Taking into account the diagnosed age-related disorders, four groups of patients were formed. The first group consisted of 52 (13.4%) patients with sarcopenia, the second group was comprised of 28 (7.2%) patients with osteopenia (osteopenia/osteoporosis), the third group included 25 (6.5%) patients with osteosarcopenia, and the fourth group consisted of 282 (72.9%) participants with coronary artery disease and without musculoskeletal disorders (MSD). Risk factors for a composite endpoint (myocardial infarction, stroke, paroxysmal atrial fibrillation, cardiac rhythm disturbances) and death, and noninfectious complications (resternotomy for bleeding, pneumothorax aspiration and thoracentesis) were assessed.Results. The composite endpoint occurred more frequently in patients with osteopenia (group I – 9.6%, group II – 32.1%, group III – 12%, group IV – 12.8%; p = 0.029), and non-infectious complications occurred more frequently in patients with sarcopenia and osteosarcopenia (group I – 17.3%, group II – 7.1%, group III – 12%, group IV – 5.3%; p = 0.002). MSD were associated with the risk of composite endpoint (odds ratio (OR) 1.73, p = 0.035), and osteopenia increased it three-fold (OR 3.01, p = 0.046). Moreover, MSD were associated with higher risk of non-infectious complications (OR 1.71, p = 0.026), especially in patients with sarcopenia (OR 2.02, p = 0.034). The assessment of risk factors for unfavorable prognosis highlighted the presence of osteopenic syndrome (100 CU), prior stroke (88 CU) and myocardial infarction (85 CU). The risk of non-infectious complications was associated with prior ischemic events (ranking level for myocardial infarction – 100 CU, stroke – 75 CU), and MSD (89 CU) and its types (osteosarcopenia – 77 CU, osteopenia – 69 CU, sarcopenia – 52 CU).Conclusion. Age-related disorders in combination with MSD increase the risk of a composite endpoint and non-infectious complications by one to three times.