Outcomes of One Anastomosis Gastric Bypass in the IFSO Middle East North Africa (MENA) Region

  • Ashraf HaddadEmail author
  • Mathias Fobi
  • Ahmad Bashir
  • Mohamed Al Hadad
  • Mohamad Hayssam ElFawal
  • Basem Safadi
  • Osama Taha
  • Mohamed Abouzeid
  • Aayed Alqahtani
  • Abdelrahman Nimeri
Original Contributions



Since it was first described in 2001, the one anastomosis gastric bypass (OAGB) has been gaining popularity in the Middle East region and worldwide. We designed a survey to evaluate the trends, techniques, and outcomes of OAGB in our region.


A questionnaire to study OAGB was sent to the members of the IFSO MENA chapter.


One-hundred and forty-eight surgeons (74%) responded. Forty-six percent of all respondents (64 surgeons) performed OAGB routinely. The most commonly performed procedures were the laparoscopic sleeve gastrostomy (LSG), followed by OAGB, and then Roux-en-Y (RYGB). Of the surgeons who responded, 65% did not perform routine pre-operative endoscopy. Seventy-two percent believed that OAGB produces better weight loss than the LSG while 58% did not believe it produced better results to RYGB. The most common length of biliopancreatic limb utilized was 200 cm, and 72% of surgeons did not measure the total length of the small bowel. Fifty percent of the surgeons offered OAGB as a treatment for acid reflux and 33% offered it to active smokers. Early complications included leak (< 1%), venous thromboembolism (< 1%), and mortality (< 0.5%) in most centers. Leaks were managed conservatively (23%), by conversion to RYGB (20%), reinforcing the anastomosis (19%), reversal to normal anatomy (6%), and others (32%). Of the total surgeons, 41% reported revising at least one patient for malnutrition and steatorrhea, and 32% reported revising at least one patient for sever bile reflux.


OAGB is a commonly performed and safe procedure in the MENA region. Malnutrition and bile reflux requiring surgical intervention are serious long-term concerns.


One anastomosis gastric bypass MENA RYGB 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interests.


For this type of study formal consent is not required.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Ashraf Haddad
    • 1
    Email author
  • Mathias Fobi
    • 2
  • Ahmad Bashir
    • 1
  • Mohamed Al Hadad
    • 3
  • Mohamad Hayssam ElFawal
    • 4
  • Basem Safadi
    • 5
  • Osama Taha
    • 6
  • Mohamed Abouzeid
    • 7
  • Aayed Alqahtani
    • 8
  • Abdelrahman Nimeri
    • 9
  1. 1.Minimally Invasive and Bariatric SurgeryGastrointestinal Bariatric and Metabolic Center (GBMC)-Jordan HospitalAmmanJordan
  2. 2.Mohak Bariatric and Robotics, SAIMS CampusIndoreIndia
  3. 3.Bariatric SurgeryHealthpoint HospitalAbu DhabiUnited Arab Emirates
  4. 4.Bariatric Surgery Clinic “BSC,” Bariatric and Metabolic UnitMakassed General Hospital BeirutBeirutLebanon
  5. 5.Department of Surgery, Gilbert and Rose-Marie Chagoury School of MedicineLebanese American UniversityBeirutLebanon
  6. 6.Bariatric and General SurgeryAssiut UniversityAssiutEgypt
  7. 7.General Surgery DepartmentAin Shams UniversityCairoEgypt
  8. 8.New You Medical CenterRiyadhSaudi Arabia
  9. 9.Carolinas Bariatic/MIS Fellowship ProgramCarolinas Weight Management, Carolinas Medical CenterCharlotteUSA

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