Dr Daniel Birch and colleagues from Canada analyzed preoperative weight loss as a predictor of postoperative success in patients after bariatric surgery.
Data were obtained from a retrospective chart review of 562 patients in a multidisciplinary obesity clinic.
|38% of patients lost weight|
|American Journal of Surgery|
The researchers found that 146 patients met the inclusion criteria, of which 23 were men and 123 were women.
The mean age was 40 years, and the mean body mass index was 53 kg/m2.
Comorbid disease included diabetes, hypertension, mental illness, and musculoskeletal disease.
Procedures performed were 16 vertical band gastroplasties, 43 open gastric bypasses, 52 laparoscopic gastric bypasses, and 35 laparoscopic adjustable gastric bands.
The team noted that 21% of patients gained weight, 38% of patients lost weight, and 40% of patients maintained their weight.
The team found postoperative weight loss was not influenced by preoperative weight change among women.
However, the researchers observed that men who gained weight preoperatively had significantly worse outcomes.
Dr Birch's team concluded, "Patients may achieve satisfactory early postoperative outcomes despite inconsistent or marginal preoperative weight change."