A prospective randomized study comparing patients with morbid obesity submitted to laparotomic gastric bypass with or without omentectomy.
BACKGROUND
Visceral fat, especially the greater omentum, seems to be an important factor in the development of some metabolic disturbances such as insulin resistance, hyperglycemia, and dyslipidemia. Therefore, we wanted to evaluate the influence of resecting or leaving in situ the greater omentum in a group of patients with morbid obesity.


METHODS
Seventy patients with morbid obesity were submitted to laparotomic resectional gastric bypass and an omentectomy was randomly performed in some patients. Body mass index (BMI), serum levels of sugar, insulin, total cholesterol, and triglycerides were determined prior to surgery and followed up on for 2 years afterwards.


RESULTS
Two years after surgery, no differences were seen in BMI levels in either group. Blood sugar levels, serum insulin, total cholesterol levels, and serum triglycerides had similar values in both groups. Arterial hypertension had similar behavior.


CONCLUSIONS
Based on these results, omentectomy is not justified as part of bariatric surgery. Its theoretical advantages are not reflected in this prospective random trial.
Csendes
Attila
A
Department of Surgery, University Hospital, University of Chile, Santiago, Chile. acsendes@redclinicauchile.cl
Maluenda
Fernando
F
Burgos
Ana Maria
AM
D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D015992:Body Mass Index; D005260:Female; D015390:Gastric Bypass / Q000379:methods*; D006801:Humans; D007813:Laparotomy; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000097:blood / Q000601:surgery; D009852:Omentum / Q000601:surgery*; D011446:Prospective Studies; D014280:Triglycerides / Q000097:blood
D001786:Blood Glucose; D014280:Triglycerides