Waist Circumference in Cardiac Surgery

Metabolic syndrome including increased body mass index or waist circumference is known to be a risk factor of cardiovascular disease. However, the relationship between body mass index or waist circumference and clinical outcome after cardiac surgery has not been fully elucidated.

Along with body mass index, which is determined with height and weight, waist circumference reflects abdominal obesity and may increase cardio-metabolic risk and all-cause morbidity/mortality. In this observational study, we will review the electronic medical records of patients underwent cardiac surgery and assess their waist circumference, measured on preoperative computed tomography, as well as body mass index. The relationship between body mass index or waist circumference and mortality after cardiac surgery will be analysed.