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  1. Article ; Online: Letter to the Editor: MGB and OAGB.

    Deitel, Mervyn / Kular, Kuldeepak Singh / Musella, Mario / Rheinwalt, Karl Peter

    Obesity surgery

    2018  Volume 28, Issue 8, Page(s) 2535–2536

    Language English
    Publishing date 2018-06-26
    Publishing country United States
    Document type Letter
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-018-3327-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Technical Variations and Considerations around OAGB in IFSO-APC and IFSO-MENAC Chapters, an Expert Survey.

    Kermansaravi, Mohammad / Shahmiri, Shahab Shahabi / Kow, Lilian / Gawdat, Khaled / Abbas, Syed Imran / Aly, Ahmad / Bashir, Ahmad / Bhandari, Mohit / Haddad, Ashraf / ElFawal, Mohamad Hayssam / Inam, Atif / Kasama, Kazunori / Kim, Sang Hyun / Kular, Kuldeepak Singh / Lakdawala, Muffazal / Layani, Laurent Abram / Lee, Wei-Jei / Pazouki, Abdolreza / Prasad, Arun /
    Safadi, Bassem / Wang, Cunchuan / Yang, Wah / Adib, Reza / Jazi, Amir Hossein Davarpanah / Shabbir, Asim

    Obesity surgery

    2024  

    Abstract: Objective: This study aimed to evaluate the technical variations of one-anastomosis gastric bypass (OAGB) among IFSO-APC and MENAC experts.: Background: The multitude of technical variations and patient selection challenges among metabolic and ... ...

    Abstract Objective: This study aimed to evaluate the technical variations of one-anastomosis gastric bypass (OAGB) among IFSO-APC and MENAC experts.
    Background: The multitude of technical variations and patient selection challenges among metabolic and bariatric surgeons worldwide necessitates a heightened awareness of these issues. Understanding different perspectives and viewpoints can empower surgeons performing OAGB to adapt their techniques, leading to improved outcomes and reduced complications.
    Methods: The scientific team of IFSO-APC, consisting of skilled bariatric and metabolic surgeons specializing in OAGB, conducted a confidential online survey. The survey aimed to assess technical variations and considerations related to OAGB within the IFSO-APC and IFSO-MENAC chapters. A total of 85 OAGB experts participated in the survey, providing their responses through a 35-question online format. The survey took place from January 1, 2024, to February 15, 2024.
    Results: Most experts do not perform OAGB for children and adolescents younger than 18 years. Most experts create the gastric pouch over a 36-40-F bougie and prefer to create a gastrojejunostomy, at the posterior wall of the gastric pouch. An anti-reflux suture during OAGB is performed in all patients by 51.8% of experts. Most experts set a common limb length of > 4 m in revisional and conversional OAGBs to prevent nutritional complications.
    Conclusion: The ongoing debate among metabolic and bariatric surgeons regarding the technical variations and patient selection in OAGB remains a significant point of discussion. This survey demonstrated the variations in technical aspects and patient selection for OAGB among MBS surgeons in the IFSO-APC and IFSO-MENAC chapters. Standardizing the OAGB technique is crucial to ensure optimal safety and efficacy in this procedure.
    Language English
    Publishing date 2024-04-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-024-07239-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Perioperative Practices Concerning One Anastomosis (Mini) Gastric Bypass: A Survey of 210 Surgeons.

    Mahawar, Kamal K / Kular, Kuldeepak Singh / Parmar, Chetan / Van den Bossche, Michael / Graham, Yitka / Carr, William R J / Madhok, Brijesh / Magee, Conor / Purkayastha, Sanjay / Small, Peter K

    Obesity surgery

    2017  Volume 28, Issue 1, Page(s) 204–211

    Abstract: Background: There is currently little evidence available on the perioperative practices concerning one anastomosis/mini gastric bypass (OAGB/MGB) and no published consensus amongst experts. Even the published papers are not clear on these aspects. The ... ...

    Abstract Background: There is currently little evidence available on the perioperative practices concerning one anastomosis/mini gastric bypass (OAGB/MGB) and no published consensus amongst experts. Even the published papers are not clear on these aspects. The purpose of this study was to understand various perioperative practices concerning OAGB/MGB.
    Methods: Bariatric surgeons from around the world were invited to participate in a questionnaire-based survey. Only surgeons performing this procedure were included.
    Results: Two hundred and ten surgeons from 39 countries with a cumulative experience of 68,442 procedures took the survey. Surgeons described a large number of absolute (n = 55) and relative contraindications (n = 59) to this procedure in their practice. Approximately 71.0% (n = 148/208), 70.0% (n = 147/208) and 65.0% (n = 137/209), respectively, routinely perform a preoperative endoscopy, screening for Helicobacter pylori and ultrasound scan of the abdomen. A minority (35.0%, n = 74/208) of the surgeons used a constant bilio-pancreatic limb (BPL) length for all the patients with remaining preferring to tailor the limb length to the patient and approximately half (49.0%, n = 101/206) routinely approximate diaphragmatic crura in patients with hiatus hernia. Some 48.5% (n = 101/208) and 40.0% (n = 53/205) surgeons, respectively, do not recommend routine iron and calcium supplementation.
    Conclusion: This survey is the first attempt to understand a range of perioperative practices with OAGB/MGB. The findings will help in identifying areas for future research and allow consensus building amongst experts with preparation of guidelines for future practice.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Choice Behavior ; Female ; Gastric Bypass/methods ; Gastric Bypass/statistics & numerical data ; Geography ; Humans ; Male ; Middle Aged ; Obesity, Morbid/epidemiology ; Obesity, Morbid/surgery ; Perioperative Care/methods ; Perioperative Care/statistics & numerical data ; Practice Patterns, Physicians'/statistics & numerical data ; Surgeons/statistics & numerical data ; Surveys and Questionnaires ; Young Adult
    Language English
    Publishing date 2017-07-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-017-2831-2
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  4. Article ; Online: Understanding Objections to One Anastomosis (Mini) Gastric Bypass: A Survey of 417 Surgeons Not Performing this Procedure.

    Mahawar, Kamal K / Borg, Cynthia-Michelle / Kular, Kuldeepak Singh / Courtney, Michael J / Sillah, Karim / Carr, William R J / Jennings, Neil / Madhok, Brijesh / Singhal, Rishi / Small, Peter K

    Obesity surgery

    2017  Volume 27, Issue 9, Page(s) 2222–2228

    Abstract: Background: Despite published experience with thousands of patients, the uptake of One Anastomosis/Mini Gastric Bypass (OAGB/MGB) has been less than enthusiastic and many surgeons still harbour objections to this procedure. The purpose of this study was ...

    Abstract Background: Despite published experience with thousands of patients, the uptake of One Anastomosis/Mini Gastric Bypass (OAGB/MGB) has been less than enthusiastic and many surgeons still harbour objections to this procedure. The purpose of this study was to understand these objections scientifically.
    Methods: Bariatric surgeons from around the world were invited to participate in a questionnaire-based survey on SurveyMonkey®. Surgeons already performing this procedure were excluded.
    Results: Four hundred seventeen bariatric surgeons (from 42 countries) not currently performing OAGB/MGB took the survey. There were 211/414 (50.97%) and 188/414 (45.41%) respondents who expressed concerns that it will lead to an increased risk of gastric and oesophageal cancers respectively. A total of 62/416 (14.9%) and 201/413 (n = 48.6%) surgeons respectively felt that OAGB/MGB was associated with a higher early (30-day) and late complication rate compared to the RYGB. Moreover, 7.8% (n = 32/411) and 16.26% (n = 67/412) of the respondents were concerned that OAGB/MGB carried a higher early (30-day) and late mortality, respectively, in comparison with the RYGB. There were 79/410 (19.27%) and 88/413 (21.3%) respondents who were concerned that OAGB/MGB was not an effective procedure for weight loss and co-morbidity resolution, respectively. A total of 258/411 (62.77%) respondents reported that OAGB/MGB was not approved by their national society as a mainstream bariatric procedure; 51.0% of these surgeons would start performing this procedure if it was.
    Conclusions: Surgeons not performing OAGB/MGB cite a number of concerns for not performing this operation. This survey is the first scientific attempt to understand these objections scientifically.
    Language English
    Publishing date 2017-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-017-2663-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The First Consensus Statement on One Anastomosis/Mini Gastric Bypass (OAGB/MGB) Using a Modified Delphi Approach.

    Mahawar, Kamal K / Himpens, Jacques / Shikora, Scott A / Chevallier, Jean-Marc / Lakdawala, Mufazzal / De Luca, Maurizio / Weiner, Rudolf / Khammas, Ali / Kular, Kuldeepak Singh / Musella, Mario / Prager, Gerhard / Mirza, Mohammad Khalid / Carbajo, Miguel / Kow, Lilian / Lee, Wei-Jei / Small, Peter K

    Obesity surgery

    2017  Volume 28, Issue 2, Page(s) 303–312

    Abstract: Background: An increasing number of surgeons worldwide are now performing one anastomosis/mini gastric bypass (OAGB/MGB). Lack of a published consensus amongst experts may be hindering progress and affecting outcomes. This paper reports results from the ...

    Abstract Background: An increasing number of surgeons worldwide are now performing one anastomosis/mini gastric bypass (OAGB/MGB). Lack of a published consensus amongst experts may be hindering progress and affecting outcomes. This paper reports results from the first modified Delphi consensus building exercise on this procedure.
    Methods: A committee of 16 recognised opinion-makers in bariatric surgery with special interest in OAGB/MGB was constituted. The committee invited 101 OAGB/MGB experts from 39 countries to vote on 55 statements in areas of controversy or variation associated with this procedure. An agreement amongst ≥ 70.0% of the experts was considered to indicate a consensus.
    Results: A consensus was achieved for 48 of the 55 proposed statements after two rounds of voting. There was no consensus for seven statements. Remarkably, 100.0% of the experts felt that OAGB/MGB was an "acceptable mainstream surgical option" and 96.0% felt that it could no longer be regarded as a new or experimental procedure. Approximately 96.0 and 91.0% of the experts felt that OAGB/MGB did not increase the risk of gastric and oesophageal cancers, respectively. Approximately 94.0% of the experts felt that the construction of the gastric pouch should start in the horizontal portion of the lesser curvature. There was a consensus of 82, 84, and 85% for routinely supplementing iron, vitamin B
    Conclusion: OAGB/MGB experts achieved consensus on a number of aspects concerning this procedure but several areas of disagreements persist emphasising the need for more studies in the future.
    MeSH term(s) Bariatric Surgery/methods ; Bariatric Surgery/standards ; Consensus ; Delphi Technique ; Gastric Bypass/methods ; Gastric Bypass/standards ; Geography ; Humans ; Internationality ; Obesity, Morbid/surgery ; Stomach/surgery
    Language English
    Publishing date 2017-12-14
    Publishing country United States
    Document type Consensus Development Conference ; Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-017-3070-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Patient Selection in One Anastomosis/Mini Gastric Bypass-an Expert Modified Delphi Consensus.

    Kermansaravi, Mohammad / Parmar, Chetan / Chiappetta, Sonja / Shahabi, Shahab / Abbass, Alaa / Abbas, Syed Imran / Abouzeid, Mohamed / Antozzi, Luciano / Asghar, Syed Tanseer / Bashir, Ahmad / Bhandari, Mohit / Billy, Helmuth / Caina, Daniel / Campos, Francisco J / Carbajo, Miguel-A / Chevallier, Jean Marc / Jazi, Amir Hossein Davarpanah / de Gordejuela, Amador Garcia Ruiz / Haddad, Ashraf /
    ElFawal, Mohamad Hayssam / Himpens, Jacques / Inam, Aatif / Kassir, Radwan / Kasama, Kazunori / Khan, Amir / Kow, Lilian / Kular, Kuldeepak Singh / Lakdawala, Muffazal / Layani, Laurent Abram / Lee, Wei-Jei / Luque-de-León, Enrique / Loi, Ken / Mahawar, Kamal / Mahdy, Tarek / Musella, Mario / Nimeri, Abdelrahman / González, Juan Carlos Olivares / Pazouki, Abdolreza / Poghosyan, Tigran / Prager, Gerhard / Prasad, Arun / Ramos, Almino C / Rheinwalt, Karl / Ribeiro, Rui / Ruiz-Úcar, Elena / Rutledge, Robert / Shabbir, Asim / Shikora, Scott / Singhal, Rishi / Taha, Osama / Talebpour, Mohammad / Verboonen, Jose Sergio / Wang, Cunchuan / Weiner, Rudolf / Yang, Wah / Vilallonga, Ramon / De Luca, Maurizio

    Obesity surgery

    2022  Volume 32, Issue 8, Page(s) 2512–2524

    Abstract: Purpose: One anastomosis/mini gastric bypass (OAGB/MGB) is up to date the third most performed obesity and metabolic procedure worldwide, which recently has been endorsed by ASMBS. The main criticisms are the risk of bile reflux, esophageal cancer, and ... ...

    Abstract Purpose: One anastomosis/mini gastric bypass (OAGB/MGB) is up to date the third most performed obesity and metabolic procedure worldwide, which recently has been endorsed by ASMBS. The main criticisms are the risk of bile reflux, esophageal cancer, and malnutrition. Although IFSO has recognized this procedure, guidance is needed regarding selection criteria. To give clinicians a daily support in performing the right patient selection in OAGB/MGB, the aim of this paper is to generate clinical guidelines based on an expert modified Delphi consensus.
    Methods: A committee of 57 recognized bariatric surgeons from 24 countries created 69 statements. Modified Delphi consensus voting was performed in two rounds. An agreement/disagreement among ≥ 70.0% of the experts was considered to indicate a consensus.
    Results: Consensus was achieved for 56 statements. Remarkably, ≥ 90.0% of the experts felt that OAGB/MGB is an acceptable and suitable option "in patients with Body mass index (BMI) > 70, BMI > 60, BMI > 50 kg/m
    Conclusion: Patient selection in OAGB/MGB is still a point of discussion among experts. There was consensus that OAGB/MGB is a suitable option in elderly patients, patients with low BMI (30-35 kg/m
    MeSH term(s) Aged ; Delphi Technique ; Gastric Bypass/methods ; Gastroesophageal Reflux/surgery ; Hernia, Hiatal ; Humans ; Metaplasia ; Obesity, Morbid/surgery ; Patient Selection ; Retrospective Studies
    Language English
    Publishing date 2022-06-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1070827-3
    ISSN 1708-0428 ; 0960-8923
    ISSN (online) 1708-0428
    ISSN 0960-8923
    DOI 10.1007/s11695-022-06124-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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