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Kermansaravi M, Chiappetta S, Parmar C, Carbajo MA, Musella M, Chevallier JM, Ribeiro R, Ramos AC, Weiner R, Nimeri A, Aarts E, Abbas SI, Bashir A, Behrens E, Billy H, Cohen RV, Caina D, De Luca M, Dillemans B, Fobi MAL, Neto MG, Gawdat K, ElFawal MH, Kasama K, Kassir R, Khan A, Kow L, Kular KDS, Lakdawala M, Layani L, Lee WJ, Luque-de-León E, Mahawar K, Almomani H, Miller K, González JCO, Prasad A, Rheinwalt K, Rutledge R, Safadi B, Salminen P, Shabbir A, Taskin HE, Verboonen JS, Vilallonga R, Wang C, Shikora SA, Prager G. Revision/Conversion Surgeries After One Anastomosis Gastric Bypass-An Experts' Modified Delphi Consensus. Obes Surg 2024; 34:2399-2410. [PMID: 38862752 DOI: 10.1007/s11695-024-07345-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
PURPOSE There is a lack of evidence for treatment of some conditions including complication management, suboptimal initial weight loss, recurrent weight gain, or worsening of a significant obesity complication after one anastomosis gastric bypass (OAGB). This study was designed to respond to the existing lack of agreement and to provide a valuable resource for clinicians by employing an expert-modified Delphi consensus method. METHODS Forty-eight recognized bariatric surgeons from 28 countries participated in the modified Delphi consensus to vote on 64 statements in two rounds. An agreement/disagreement among ≥ 70.0% of the experts was regarded to indicate a consensus. RESULTS A consensus was achieved for 46 statements. For recurrent weight gain or worsening of a significant obesity complication after OAGB, more than 85% of experts reached a consensus that elongation of the biliopancreatic limb (BPL) is an acceptable option and the total bowel length measurement is mandatory during BPL elongation to preserve at least 300-400 cm of common channel limb length to avoid nutritional deficiencies. Also, more than 85% of experts reached a consensus on conversion to Roux-en-Y gastric bypass (RYGB) with or without pouch downsizing as an acceptable option for the treatment of persistent bile reflux after OAGB and recommend detecting and repairing any size of hiatal hernia during conversion to RYGB. CONCLUSION While the experts reached a consensus on several aspects regarding revision/conversion surgeries after OAGB, there are still lingering areas of disagreement. This highlights the importance of conducting further studies in the future to address these unresolved issues.
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Affiliation(s)
- Mohammad Kermansaravi
- Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Rasool-E Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Sonja Chiappetta
- Department of General and Laparoscopic Surgery, Bariatric and Metabolic Surgery Unit, Ospedale Evangelico Betania, Naples, Italy.
| | | | - Miguel A Carbajo
- Centre of Excellence for the Study and Treatment of Obesity and Diabetes, Valladolid, Spain
| | - Mario Musella
- Advanced Biomedical Sciences Department, "Federico II" University, Naples, Italy
| | | | - Rui Ribeiro
- Centro Multidisciplinar Do Tratamento da Obesidade, Hospital Lusíadas Amadora e Lisboa, Amadora, Portugal
| | - Almino C Ramos
- Gastro-Obeso-Center, Institute for Metabolic Optimization, Sao Paulo, Brazil
| | - Rudolf Weiner
- Bariatric Surgery Unit, Sana Clinic Offenbach, Offenbach, Germany
| | - Abdelrahman Nimeri
- Department of Surgery, Center for Metabolic and Bariatric Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Edo Aarts
- WeightWorks Clinics and Allurion Clinics, Amersfoort, The Netherlands
| | | | - Ahmad Bashir
- Minimally Invasive and Bariatric Surgery, Gastrointestinal Bariatric and Metabolic Center (GBMC)-Jordan Hospital, Amman, Jordan
| | | | - Helmuth Billy
- Ventura Advanced Surgical Associates, Ventura, CA, USA
| | - Ricardo V Cohen
- Center for the Treatment of Obesity and Diabetes, Oswaldo Cruz German Hospital, Sao Paolo, Brazil
| | - Daniel Caina
- Dr. Federico Abete Hospital for Trauma and Emergency, Obesity and Metabolic Center, Malvinas, Argentina
| | | | - Bruno Dillemans
- Department of General Surgery, AZ Sint Jan Brugge-Oostende, Brugge, Belgium
| | | | | | - Khaled Gawdat
- Bariatric Surgery Unit, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | | | - Kazunori Kasama
- Weight Loss and Metabolic Surgery Center, Yotsuya Medical Cube, Tokyo, Japan
| | - Radwan Kassir
- Department of Digestive Surgery, CHU Félix Guyon, Saint Denis, La Réunion, France
| | - Amir Khan
- Walsall Healthcare NHS Trust, Walsall, UK
| | - Lilian Kow
- Adelaide Bariatric Centre, Flinders University of South Australia, Adelaide, Australia
| | | | | | | | - Wei-Jei Lee
- Medical Weight Loss Center, China Medical University Shinchu Hospital, Zhubei, Taiwan
| | | | - Kamal Mahawar
- South Tyneside and Sunderland Foundation NHS Trust, Sunderland, UK
| | | | - Karl Miller
- Diakonissen Wehrle Private Hospital, Salzburg, Austria
| | | | | | - Karl Rheinwalt
- Department of Bariatric, Metabolic, and Plastic Surgery, St. Franziskus Hospital, Cologne, Germany
| | | | | | - Paulina Salminen
- Division of Digestive Surgery and Urology, Department of Digestive Surgery, Turku University Hospital, Turku, Finland
| | - Asim Shabbir
- National University of Singapore, Singapore, Singapore
| | - Halit Eren Taskin
- Department of Surgery, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | | | - Ramon Vilallonga
- Endocrine, Bariatric, and Metabolic Surgery Department, University Hospital Vall Hebron, Barcelona, Spain
| | - Cunchuan Wang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Scott A Shikora
- Department of Surgery, Center for Metabolic and Bariatric Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
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Ivano VK, Hatto M, Teramoto F, Macedo PRAD, Gestic MA, Utrini MP, Chaim FDM, Ramos AC, Callejas-Neto F, Chaim EA, Cazzo E. Effects of bariatric surgery on renal function: a retrospective cohort study comparing one-year outcomes between one-anastomosis gastric bypass and Roux-en-Y gastric bypass. SAO PAULO MED J 2024; 142:e2023161. [PMID: 38836818 DOI: 10.1590/1516-3180.2023.0161.r1.08022024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 02/08/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Evidence on the effect of one-anastomosis gastric bypass (OAGB) on renal function is limited. OBJECTIVE To compare the evolution of estimated renal function observed 1 year after OAGB and Roux-en-Y gastric bypass (RYGB) in individuals with obesity. DESIGN AND SETTING Observational, analytical, and retrospective cohort study. Tertiary-level university hospital. METHODS This study used a prospectively collected database of individuals who consecutively underwent bariatric surgery. Renal function was assessed by calculating the estimated glomerular filtration rate (eGFR), according to the Chronic Kidney Disease Epidemiology Collaboration. The one-year variation in the eGFR was compared between the procedures. RESULTS No significant differences in age, sex, obesity-associated conditions, or body mass index were observed among individuals who underwent either OAGB or RYGB. OAGB led to a significantly higher percentage of total (P = 0.007) and excess weight loss (P = 0.026). Both OAGB and RYGB led to significantly higher values of eGFR (103.9 ± 22 versus 116.1 ± 13.3; P = 0.007, and 102.4 ± 19 versus 113.2 ± 13.3; P < 0.001, respectively). The one-year variation in eGFR was 11 ± 16.2% after OAGB and 16.7 ± 26.3% after RYGB (P = 0.3). Younger age and lower baseline eGFR were independently associated with greater postoperative improvement in renal function (P < 0.001). CONCLUSION Compared with RYGB, OAGB led to an equivalent improvement in renal function 1 year after the procedure, along with greater weight loss.
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Affiliation(s)
- Victor Kenzo Ivano
- MD. Postgraduate Student, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Marcelo Hatto
- MD. Postgraduate Student, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Fernanda Teramoto
- MD. Medical Resident, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Paolla Ravida Alves de Macedo
- MD. Medical Resident, Department of Surgery School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Martinho Antonio Gestic
- MD, MSc. Assistant lecturer, Department of Surgery, School of Medical Sciences, Universidade State University of Campinas (UNICAMP), Campinas (SP), Brazil
| | - Murillo Pimentel Utrini
- MD. Assistant Lecturer, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Felipe David Mendonça Chaim
- MD, PhD. Assistant Lecturer, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Almino Cardoso Ramos
- MD, PhD. Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Francisco Callejas-Neto
- MD, MSc. Assistant Professor, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Elinton Adami Chaim
- MD, PhD. Full Professor, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
| | - Everton Cazzo
- MD, PhD. Associate Professor, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas (SP), Brazil
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Campanelli M, Bianciardi E, Benavoli D, Bagaglini G, Lisi G, Gentileschi P. Laparoscopic Banded One Anastomosis Gastric Bypass: A Single-Center Series. J Obes 2022; 2022:4942052. [PMID: 35132363 PMCID: PMC8817855 DOI: 10.1155/2022/4942052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Laparoscopic one anastomosis gastric bypass (LOAGB) is a relatively new procedure for the treatment of morbid obesity and related comorbidities. On average, this procedure results in good postoperative weight loss with a low complication rate. Recent publications suggest that dumping syndrome and weight regain might be reduced by placing a silicone ring over the gastric pouch during the procedure, so called laparoscopic banded one anastomosis gastric bypass (LBOAGB). METHODS 86 patients undergoing LBOAGB between 2018 and 2020 were enrolled in this retrospective study. Hospital records were used to assess weight loss, comorbidity resolution, and any complications either in the short or medium term. RESULTS 54 Female and 32 male patients were included with a mean age of 43 years (25-64), preoperative body mass index of 42 kg/m2 (35-49), and preoperative weight of 114 kg (86-162). Thirty-four patients presented with type 2 diabetes (39.5%), 42 patients (49%) diagnosed with hypertension, 24 presented with OSAS (28%), and 21 (24%) hypercholesterolaemia patients were included. In total, 36 patients were diagnosed with multiple comorbidities. The operative data showed an average operative time of 48 minutes with 3.4% of patients suffering from early (minor) complications and 2.3% with a late (minor) complication. One patient required reoperation due to intra-abdominal bleeding. The median length of hospital stay was 2.5 days. Median follow-up was 18 months (5-36). In that period, no patient required ring removal or conversion to Roux-en-Y gastric bypass surgery. Food intolerance/vomiting was present in 1 patient (1.1%), bile reflux was present in 1 patient (1.1%), and no stomal ulcers were observed. Mean % excess weight loss at 12 and 24 months was 72% and 80%, respectively. Fifty-two out of 86 patients (60%) had a complete resolution of comorbidities. A CONUT score >2 (mild malnutrition) was found in 40% of patients, while a CONUT score 0-1 was found in 60% of patients. CONCLUSION LBOAGB shows promising results in terms of safety and efficacy in the short term. Further prospective studies will be required to evaluate the consistency of the results in the long term.
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Affiliation(s)
- Michela Campanelli
- Department of Bariatric and Metabolic Surgery, San Carlo of Nancy Hospital and University of Rome “Tor Vergata”, Rome, Italy
| | - Emanuela Bianciardi
- Chair of Psychiatry, Department of Systems Medicine, University of Rome “Tor Vergata”, Rome, Italy
| | - Domenico Benavoli
- Department of Bariatric and Metabolic Surgery, San Carlo of Nancy Hospital and University of Rome “Tor Vergata”, Rome, Italy
| | - Giulia Bagaglini
- General Surgery Residency School, University of Rome “Tor Vergata”, Rome, Italy
| | - Giorgio Lisi
- Department of Surgery, Sant'Eugenio Hospital, Viale Dell'Umanesimo 10, Rome 00144, Italy
| | - Paolo Gentileschi
- Department of Bariatric and Metabolic Surgery, San Carlo of Nancy Hospital and University of Rome “Tor Vergata”, Rome, Italy
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