One Anastomosis Gastric Bypass

The  one-anastomosis gastric bypass – OAGB  used to be called the “mini gastric bypass.”

Currently this is the second most common operation done in the world. It was just endorsed by the American Society of Metabolic and Bariatric Surgery.  And we have done more of these operations than anyone in California. Sadly  insurance does not cover this procedure in the United States, but is available by cash payment.  Our Ventura County surgical practice, convenient to Santa Barbara, Malibu, and Los Angeles areas, can offer this weight loss surgery to patients ready to take this important step towards better health.

We are one of the few centers in the United States to offer this procedure, which provides better outcomes than the standard gastric sleeve. For people who have had the gastric sleeve and have reflux, or inability to lose weight this has been one way to revise the operation to allow for more weight loss.

Some insurance companies do not cover weight loss (bariatric) surgery. If yours does not, and you wish to have weight loss surgery, we offer the most competitive cash prices in the US.  Many places in Mexico offer this procedure, but none of the experience that we do. While we cannot compete with Mexico cash prices, we can offer your surgery in a Center of Excellence, complete with post operative follow up using video or phone, and the knowledge that the people taking care of you meet the highest standards in the world. Interested – make an appointment today to talk to us or email Dr. Simpson directly at terry@drsimpson.com

The procedure is simple to conceive – we bring a loop of small bowel up and attach it to the stomach.

In head-to-head comparisons of this versus regular RNY-gastric bypass:
(a) Shorter operating time
(b) Less risk of internal hernias than a RNY-gastric bypass
(c) Similar weight loss – sometimes greater weight loss
(d) less cutting of intestines and re-connecting

Weight Loss:
This procedure has been associated with more weight loss than traditional gastric bypass. See the head to head comparisons in the literature.
Lee WJ, Ser KH, Lee YC, Tsou JJ, Chen SC, Chen JC. Laparoscopic Roux-en-Y vs. mini-gastric bypass for the treatment of morbid obesity: a 10-year experience. Obes Surg. 2012;22(12):1827-1834. doi:10.1007/s11695-012-0726-9 found in a ten year review of RNY gastric bypass vs. Mini-gastric bypass that Conclusions: This study demonstrates that LMGBP can be regarded as a simpler and safer alternative to LRYGB with similar efficacy at a 10-year experience.” They also found more weight loss in the mini-gastric bypass “At 5 years after surgery, the mean BMI was lower in LMGB than LRYGB (27.7 vs. 29.2, p < 0.05) and LMGB also had a higher excess weight loss than LRYGB (72.9 vs. 60.1%, p < 0.05). :

Operative time was shorter with the mini.
Rheinwalt KP, Plamper A, Rückbeil MV, Kroh A, Neumann UP, Ulmer TF. One Anastomosis Gastric Bypass-Mini-Gastric Bypass (OAGB-MGB) Versus Roux-en-Y Gastric Bypass (RYGB)-a Mid-Term Cohort Study with 612 Patients. Obes Surg. 2020;30(4):1230-1240. doi:10.1007/s11695-019-04250-3 found “Conclusions: TWL, malnutrition, and comorbidity remission 3 years postoperatively were comparable. Gastroesophageal reflux was less frequent after RYGB (p = 0.0729), whereas shorter operation times (p < 0.0001), less frequent stenosis (p < 0.0001), and dumping syndrome (p = 0.0018) were found in OAGB-MGB. Further RCTs are required.”

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