Omentectomy in Addition to Bariatric Surgery-a 5-Year Follow-up.
Omentectomy in addition to bariatric surgery has been suggested to improve metabolic outcome but short-term (6-24 months) studies have refuted this notion. We investigated whether there was any long-term impact of omentectomy.



Forty-nine obese women underwent gastric bypass surgery and were randomly assigned to omentectomy (n = 26) or not (n = 23). They were re-examined after 5 years including dual-energy X-ray absorptiometry for body composition, blood pressure and blood sampling.



There were no significant differences between the two groups at baseline (p = 0.07-0.93) or 5 years post-operatively (p = 0.15-0.93) regarding weight, BMI, body composition, HOMA-IR, plasma cholesterol, HDL cholesterol, or triglycerides.



In agreement with previous shorter studies, removal of the greater omentum in addition to GBP is not associated with metabolic benefits after long-term follow-up.
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden. Daniel.p.andersson@ki.se.
Daniel P
DP
Andersson
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Daniel
D
Eriksson-Hogling
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Jesper
J
Bäckdahl
Department of Surgery, Karolinska Institutet, Ersta Hospital, Stockholm, Sweden.
Anders
A
Thorell
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Patrik
P
Löfgren
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Mikael
M
Rydén
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Peter
P
Arner
Department of Medicine, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden.
Johan
J
Hoffstedt
D015502:Absorptiometry, Photon; D000328:Adult; D050110:Bariatric Surgery / Q000379:methods*; D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure / Q000502:physiology; D001823:Body Composition / Q000502:physiology; D015992:Body Mass Index; D008076:Cholesterol, HDL / Q000378:metabolism; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D009767:Obesity, Morbid / Q000097:blood / Q000503:physiopathology / Q000601:surgery*; D009852:Omentum / Q000601:surgery*; D014280:Triglycerides / Q000097:blood
D001786:Blood Glucose; D008076:Cholesterol, HDL; D014280:Triglycerides
Clinical trial; Gastric bypass; Insulin resistance; Randomized; Visceral fat