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Review
. 2023 Jun;33(6):1846-1856.
doi: 10.1007/s11695-023-06556-9. Epub 2023 Apr 6.

One Anastomosis Gastric Bypass (OAGB) with a 150-cm Biliopancreatic Limb (BPL) Versus a 200-cm BPL, a Systematic Review and Meta-analysis

Mohamed AbdAlla Salman  1 , Ahmed Salman  2 , Mohamed Moustafa Assal  3 , Mohammed Elsherbiney  4 , Mohamed Tourky  5 , Ahmed Elewa  6 , Adel Mohamed Khalaf  7 , Mohamed A Gadallah  7 , Mahmoud Gebril  8 , Sadaf Khalid  9 , Hossam Shaaban  10 , Aboalgasim Alamin Mohammed  10 , Mohamed Hosny Abdo Osman  10 , Haitham Hassan  2
Affiliations
Review

One Anastomosis Gastric Bypass (OAGB) with a 150-cm Biliopancreatic Limb (BPL) Versus a 200-cm BPL, a Systematic Review and Meta-analysis

Mohamed AbdAlla Salman et al. Obes Surg. 2023 Jun.

Abstract

This is a systematic review and meta-analysis that assessed the impact of performing OAGB with a 150-cm BPL versus a 200-cm BPL concerning weight loss, comorbidities remission, and adverse nutritional effects. The analysis included studies that compared patients who underwent OAGB with a 150-cm BPL and 200-cm BPL. Eight studies were eligible for this review after searching in the EMBASE, PubMed central database, and Google scholar. The pooled analysis revealed favoring the 200-cm BPL limb length for weight loss, with a highly significant difference in the TWL% (p=0.009). Both groups showed comparable comorbidities remission. Significantly higher ferritin and folate deficiency rates were found in the 200-cm BPL group. Considering a 200-cm BPL when performing OAGB delivers a better weight loss outcome than a 150-cm BPL, which is at the expense of a more severe nutritional deficiency. No significant differences were found regarding the comorbidities' remission.

Keywords: 150 cm; 200 cm; Biliopancreatic limb length; Obesity; One anastomosis gastric bypass.

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Conflict of interest statement

The authors declare no conflict of interest

Figures

Fig. 1
Fig. 1
The included studies flow chart
Fig. 2
Fig. 2
Foster plots for the EWL% and TWL% in the included studies
Fig. 3
Fig. 3
Foster plots for diabetes mellitus and hypertension complete resolution/improvement in the included studies
Fig. 4
Fig. 4
Foster plot for hypoalbuminemia, low protein levels, and low ferritin levels in the included studies
Fig. 5
Fig. 5
Foster plot for low vitamin B12, folate, and vitamin D levels and high postoperative reoperation rate in the included studies
Fig. 6
Fig. 6
Foster plot for 30-days postoperative reoperation rate in the included studies
Fig. 7
Fig. 7
Review authors’ judgments about each risk of bias item for each included study
See this image and copyright information in PMC

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