Short-Term Changes on Body Composition and Bone Mass After One-Anastomosis Gastric Bypass: a Prospective Observational Study

Abstract Background It is already known that Laparoscopic sleeve gastrectomy (LSG) has gained popularity as a stand-alone procedure with good short-term results for weight loss. However, in the long-term, weight regain is considered as a complication. Demand for secondary surgery is rising, partly for this reason, but through that study we try to discover the efficacy of conversion of failed sleeve gastrectomy to one anastomosis gastric bypass (OAGB) regarding weight loss and metabolic outcomes. Objective To asses the efficacy and safety of one anastomosis gastric bypass (OAGB) as a conversion surgery post Sleeve Gastrectomy failure as regard weight loss and metabolic outcomes. Patients and Methods This study is a retrospective cohort study which included 20 patients underwent one anastomosis gastric bypass at Ain-Shams University El-Demerdash Hospital, Cairo, Egypt and specialized bariatric center, Cairo, Egypt From February 2019 to July 2019 with 6 months of postoperative follow up till January 2019. Results In this study, we reviewed and analyzed the outcomes from the revision of the SG due to either inadequate weight loss or weight regain to one anastomosis gastric bypass (OAGB) with %EBWL of 6.65% at 1 month, 13.61 % at 3 months and 20.86% at 6 months. Conclusion OAGB appears to be an effective and safe therapeutic technique as a revisional surgery for failed primary SG with good short-term results for treating morbid obesity and its associated comorbidities with a significantly low rate of complications. However the EBWL was less than what is reported after primary OAGB weight. Multicenter studies with larger series of patients and longer term follow up after SG revisions to OAGB are warranted.

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High incidence of renal failure requiring short-term dialysis: a prospective observational study

QJM ◽

10.1093/qjmed/95.9.585 ◽

2002 ◽

Vol 95 (9) ◽

pp. 585-590 ◽

Cited By ~ 18

Author(s):

S. ROBERTSON

Keyword(s):

Renal Failure ◽

Observational Study ◽

Prospective Observational Study ◽

Short Term ◽

High Incidence

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Comparison of Short-term Safety of One Anastomosis Gastric Bypass to Roux-en-Y Gastric Bypass and Sleeve Gastrectomy in the United States: 314 cases from MBSAQIP-accredited Centers

Surgery for Obesity and Related Diseases ◽

10.1016/j.soard.2021.11.009 ◽

2021 ◽

Author(s):

James J. Jung ◽

Albert K. Park ◽

Elan R. Witkowski ◽

Matthew M. Hutter

Keyword(s):

United States ◽

Gastric Bypass ◽

Sleeve Gastrectomy ◽

The United States ◽

One Anastomosis Gastric Bypass ◽

Short Term

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Long-Term Effects of Laparoscopic Sleeve Gastrectomy and Roux-en-Y Gastric Bypass on Body Composition and Bone Mass Density

Obesity Facts ◽

10.1159/000512450 ◽

2020 ◽

pp. 1-10

Author(s):

Julian Bühler ◽

Silvan Rast ◽

Christoph Beglinger ◽

Ralph Peterli ◽

Thomas Peters ◽

...

Keyword(s):

Vitamin D ◽

Gastric Bypass ◽

Body Composition ◽

Sleeve Gastrectomy ◽

Bone Mass ◽

Laparoscopic Sleeve Gastrectomy ◽

Mass Density ◽

Bone Mass Density

Background: Currently, the two most common bariatric procedures are laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB). Long-term data comparing the two interventions in terms of their effect on body composition and bone mass density (BMD) are scarce. Objective: The aim of this study was to assess body composition and BMD at least 5 years after LSG and LRYGB. Setting: Department of Endocrinology and Nutrition, St. Claraspital Basel and St. Clara Research Ltd., Basel, Switzerland. Methods:Bariatric patients at least 5 years after surgery (LSG or LRYGB) were recruited, and body composition and BMD were measured by means of dual-energy X-ray absorptiometry. Data from body composition before surgery were included in the analysis. Blood samples were taken for determination of plasma calcium, parathyroid hormone, vitamin D3, alkaline phosphatase, and C-terminal telopeptide, and the individual risk for osteoporotic fracture assessed by the Fracture Risk Assessment Tool score was calculated. After surgery, all patients received multivitamins, vitamin D3, and zinc. In addition, LRYGB patients were prescribed calcium. Results: A total of 142 patients were included, 72 LSG and 70 LRYGB, before surgery: median body mass index 43.1, median age 45.5 years, 62.7% females. Follow-up after a median of 6.7 years. For LRYGB, the percentage total weight loss at follow-up was 26.3% and for LSG 24.1% (p = 0.243). LRYGB led to a slightly lower fat percentage in body composition. At follow-up, 45% of both groups had a T score at the femoral neck below –1, indicating osteopenia. No clinically relevant difference in BMD was found between the groups. Conclusions:At 6.7 years after surgery, no difference in body composition and BMD between LRYGB and LSG was found. Deficiencies and bone loss remain an issue after both interventions and should be monitored.

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