Obese patients are thought to have an increased risk for complications in coronary artery bypass surgery.
However, several risk stratification systems do not identify obesity as a variable for risk adjustment.
In this study, doctors from the Netherlands evaluate the in-hospital and 1-year mortality and morbidity in obese and non-obese patients after a coronary artery bypass.
The team evaluated data from 1130 patients undergoing myocardial revascularization between January 2000 and August 2002.
The team defined obesity as a body mass index of 30 kg/m2.
They compared 206 obese patients with 924 non-obese patients.
|Incidence of postoperative wound infections was increased in obese patients.|
|European Journal of Cardiothoracic Surgery|
The team did not find any significant differences between obese and non-obese patients for a number of variables.
However, the incidence of postoperative wound infections was increased in obese patients (8% in obese versus 4% in non-obese).
On multivariate analysis, the team determined that obesity was the only risk factor for postoperative for wound infections (odds ratio 1.97).
Dr Ariena Lindhout and colleagues concluded, "Obese patients do not have an increased risk of in-hospital and early (1-year) mortality after coronary artery bypass".
"However, obese patients have an increased risk of postoperative wound infections compared to non-obese patients."