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Evans LL, Lee WG, Karimzada M, Patel VH, Aribindi VK, Kwiat D, Graham JL, Cummings DE, Havel PJ, Harrison MR. Evaluation of a Magnetic Compression Anastomosis for Jejunoileal Partial Diversion in Rhesus Macaques. Obes Surg 2024; 34:515-523. [PMID: 38135738 PMCID: PMC10810932 DOI: 10.1007/s11695-023-07012-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
PURPOSE Metabolic surgery remains underutilized for treating type 2 diabetes, as less invasive alternative interventions with improved risk profiles are needed. We conducted a pilot study to evaluate the feasibility of a novel magnetic compression device to create a patent limited caliber side-to-side jejunoileal partial diversion in a nonhuman primate model. MATERIALS AND METHODS Using an established nonhuman primate model of diet-induced insulin resistance, a magnetic compression device was used to create a side-to-side jejunoileal anastomosis. Primary outcomes evaluated feasibility (e.g., device mating and anastomosis patency) and safety (e.g., device-related complications). Secondary outcomes evaluated the device's ability to produce metabolic changes associated with jejunoileal partial diversion (e.g., homeostatic model assessment of insulin resistance [HOMA-IR] and body weight). RESULTS Device mating, spontaneous detachment, and excretion occurred in all animals (n = 5). There were no device-related adverse events. Upon completion of the study, ex vivo anastomoses were widely patent with healthy mucosa and no evidence of stricture. At 6 weeks post-device placement, HOMA-IR improved to below baseline values (p < 0.05). Total weight also decreased in a linear fashion (R2 = 0.97) with total weight loss at 6 weeks post-device placement of 14.4% (p < 0.05). CONCLUSION The use of this novel magnetic compression device to create a limited caliber side-to-side jejunoileal anastomosis is safe and likely feasible in a nonhuman primate model. The observed glucoregulatory and metabolic effects of a partial jejunoileal bypass with this device warrant further investigation to validate the long-term glucometabolic impact of this approach.
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Affiliation(s)
- Lauren L Evans
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - William G Lee
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - Mohammad Karimzada
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - Veeshal H Patel
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - Vamsi K Aribindi
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - Dillon Kwiat
- Department of Surgery, University of California San Francisco, San Francisco, USA
| | - James L Graham
- Department of Molecular Biosciences, School of Veterinary Medicine and Department of Nutrition, University of California Davis, Davis, USA
| | - David E Cummings
- Division of Metabolism, Endocrinology and Nutrition, University of Washington and VA Puget Sound Health Care System, Seattle, USA
| | - Peter J Havel
- Department of Molecular Biosciences, School of Veterinary Medicine and Department of Nutrition, University of California Davis, Davis, USA
| | - Michael R Harrison
- Department of Surgery, University of California San Francisco, San Francisco, USA.
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Valezi AC, Campos ACL, Bahten LCV. BRAZILIAN MULTI-SOCIETY POSITION STATEMENT ON EMERGING BARIATRIC AND METABOLIC SURGICAL PROCEDURES. ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 36:e1759. [PMID: 37729276 PMCID: PMC10510373 DOI: 10.1590/0102-672020230041e1759] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 09/22/2023]
Abstract
This Brazilian multi-society position statement on emerging bariatric and metabolic surgical procedures was issued by the Brazilian Society of Bariatric and Metabolic Surgery (SBCBM), the Brazilian College of Digestive Surgery (CBCD), and the Brazilian College of Surgeons (CBC). This document is the result of a Brazilian Emerging Surgeries Forum aimed at evaluating the results of surgeries that are not yet listed in the Federal Council of Medicine (CFM), the regulatory agency that oversees and regulates medical practice in Brazil. The Forum integrated more than 400 specialists and academics with extensive knowledge about bariatric and metabolic surgery, representing the three surgical societies: SBCBM, CBC, and CBCD. International speakers participated online and presented their experiences with the techniques under discussion, emphasizing the regulatory policies in their countries. The indications for surgery and the subsequent procedures were carefully reviewed, including one anastomosis gastric bypass (OAGB), single anastomosis duodeno-ileal with sleeve gastrectomy (SADI-S or OADS), sleeve gastrectomy with transit bipartition (SGTB), and sleeve gastrectomy with ileal interposition (SGII). The recommendations of this document are based on an extensive literature review and discussions among bariatric surgery specialists from the three surgical societies. We concluded that patients with a body mass index over 30 kg/m2 may be candidates for metabolic surgery in the presence of comorbidities (arterial hypertension and type 2 diabetes) with no response to clinical treatment of obesity or in the control of other associated diseases. Regarding the surgical procedures, we concluded that OAGB, OADS, and SGTB are associated with low morbidity rates, satisfactory weight loss, and resolution of obesity-related comorbidities such as diabetes and arterial hypertension. SGII was considered a good and viable promising surgical alternative technique. The recommendations of this statement aim to synchronize our societies with the sentiments and understandings of most of our members and also serve as a guide for future decisions regarding bariatric surgical procedures in our country and worldwide.
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Gagner M, Cadiere GB, Sanchez-Pernaute A, Abuladze D, Krinke T, Buchwald JN, Van Sante N, Van Gossum M, Dziakova J, Koiava L, Odovic M, Poras M, Almutlaq L, Torres AJ. Side-to-side magnet anastomosis system duodeno-ileostomy with sleeve gastrectomy: early multi-center results. Surg Endosc 2023:10.1007/s00464-023-10134-6. [PMID: 37217682 PMCID: PMC10202352 DOI: 10.1007/s00464-023-10134-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/08/2023] [Indexed: 05/24/2023]
Abstract
INTRODUCTION Gastrointestinal anastomoses with classical sutures and/or metal staples have resulted in significant bleeding and leak rates. This multi-site study evaluated the feasibility, safety, and preliminary effectiveness of a novel linear magnetic compression anastomosis device, the Magnet System (MS), to form a side-to-side duodeno-ileostomy (DI) diversion for weight loss and type 2 diabetes (T2D) resolution. METHODS In patients with class II and III obesity (body mass index [BMI, kg/m2] ≥ 35.0- ≤ 50.0 with/without T2D [HbA1C > 6.5%]), two linear MS magnets were delivered endoscopically to the duodenum and ileum with laparoscopic assistance and aligned, initiating DI; sleeve gastrectomy (SG) was added. There were no bowel incisions or retained sutures/staples. Fused magnets were expelled naturally. Adverse events (AEs) were graded by Clavien-Dindo Classification (CDC). RESULTS Between November 22, 2021 and July 18, 2022, 24 patients (83.3% female, mean ± SEM weight 121.9 ± 3.3 kg, BMI 44.4 ± 0.8) in three centers underwent magnetic DI. Magnets were expelled at a median 48.5 days. Respective mean BMI, total weight loss, and excess weight loss at 6 months (n = 24): 32.0 ± 0.8, 28.1 ± 1.0%, and 66.2 ± 3.4%; at 12 months (n = 5), 29.3 ± 1.5, 34.0 ± 1.4%, and 80.2 ± 6.6%. Group mean respective mean HbA1C and glucose levels dropped to 1.1 ± 0.4% and 24.8 ± 6.6 mg/dL (6 months); 2.0 ± 1.1% and 53.8 ± 6.3 mg/dL (12 months). There were 0 device-related AEs, 3 procedure-related serious AEs. No anastomotic bleeding, leakage, stricture, or mortality. CONCLUSION In a multi-center study, side-to-side Magnet System duodeno-ileostomy with SG in adults with class III obesity appeared feasible, safe, and effective for weight loss and T2D resolution in the short term.
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Affiliation(s)
- Michel Gagner
- Westmount Square Surgical Center, Westmount, QC, Canada.
- Westmount Square Surgical Center, 1 Westmount Square, Suite 801, Westmount, QC, H3Z2P9, Canada.
| | | | | | | | | | - J N Buchwald
- Medwrite Medical Communications, Maiden Rock, WI, USA
| | | | | | | | - Levan Koiava
- Innova Medical Center, Tbilisi, Republic of Georgia
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Gagner M, Krinke T, Lapointe-Gagner M, Buchwald JN. Side-to-side duodeno-ileal magnetic compression anastomosis: design and feasibility of a novel device in a porcine model. Surg Endosc 2023:10.1007/s00464-023-10105-x. [PMID: 37170025 DOI: 10.1007/s00464-023-10105-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/23/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND Minimally invasive metabolic/bariatric surgery (MBS) may be further advanced by magnetic compression anastomosis (MCA) technology. The study aimed to develop a magnet sized to create a patent duodeno-ileostomy (DI) and verify its effectiveness in a porcine model. METHODS Developmental study phase: magnets with 4 different flange-offset dimensions were tested to identify a design that would successfully form a compression anastomosis. Verification phase: evaluation of the selected design's efficacy. In each 6-week phase (4 pigs/phase), one magnet was inserted laparoscopically in the jejunum, one placed gastroscopically in the duodenum. Magnets were aligned, gradually fused, formed an anastomosis, and then detached and were expelled. At necropsy, MCA sites and sutured enterotomy sites were collected and compared. RESULTS Developmental phase: the linear BC42 magnet with a 2.3-mm flange offset design was selected. Verification phase: in 4 swine magnets were mated at the target location, confirmed radiographically. Mean time to magnet detachment 16.0 days (12-22), to expulsion 24.5 days (17-33). MCA was achieved in all animals at time of sacrifice. Animals gained a mean 9.5 kg (3.9-11.8). Specimens revealed patent anastomoses of ≥ 20 mm with smooth mucosa and minimal inflammation and fibrosis compared to sutured enterotomies. One pig underwent corrective surgery for a mesenteric hernia without sequelae. CONCLUSION In a large-animal model, gross and histopathologic examination confirmed that the linear MCA device created a patent, well-vascularized, duodeno-ileal anastomosis. The novel MCA device may be appropriate for use in human MBS procedures.
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Affiliation(s)
- Michel Gagner
- Department of Surgery, Westmount Square Surgical Center, 1 Westmount Square, Suite 801, Westmount, QC, H3Z2P9, Canada.
| | | | - Maxime Lapointe-Gagner
- Department of Surgery, Westmount Square Surgical Center, 1 Westmount Square, Suite 801, Westmount, QC, H3Z2P9, Canada
| | - J N Buchwald
- Division of Scientific Research Writing, Medwrite, Maiden Rock, WI, USA
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Baratte C, Willemetz A, Ribeiro-Parenti L, Carette C, Msika S, Bado A, Czernichow S, Le Gall M, Poghosyan T. Analysis of the Efficacy and the Long-term Metabolic and Nutritional Status of Sleeve Gastrectomy with Transit Bipartition Compared to Roux-en-Y Gastric Bypass in Obese Rats. Obes Surg 2023; 33:1121-1132. [PMID: 36729363 DOI: 10.1007/s11695-023-06477-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 02/03/2023]
Abstract
PURPOSE Sleeve gastrectomy with transit bipartition (SG-TB) could be an attractive alternative to Roux-en-Y gastric bypass (RYGB) on weight loss and improvement of comorbidities in patients with obesity. However, there is little long-term data. Translational research on a rat model could allow long-term projection to assess efficacy and safety of SG-TB. The aim of this research was to evaluate the long-term efficacy and safety of SG-TB compared to RYGB and SHAM in rat model. MATERIALS AND METHODS Ninety-four male obese Wistar rats were distributed into 3 groups: SG-TB (n = 34), RYGB (n = 32), and SHAM (control group, n = 28). The percentage of total weight loss (%TWL), coprocalorimetry, glucose and insulin tolerance test, insulin, GLP-1, PYY, and GIP before and after surgery were assessed. The animals were followed over 6 months (equivalent to 16 years in humans). RESULTS At 6 months, %TWL was significantly greater(p = 0.025) in the SG-TB group compared to the RYGB group. There was no difference between the groups (p = 0.86) in malabsorption 15 and 120 days postoperatively. Glucose tolerance was significantly improved (p = 0.03) in the SG-TB and RYGB groups compared to the preoperative state. Insulin secretion, at 3 months, was significantly more important in the SG-TB group (p = 0.0003), compared to the RYGB and SHAM groups. GLP-1 secretion was significantly increased in the SG-TB and RYGB groups compared to the preoperative state (p = 0.001) but similar between SG-TB and RYGB animals (p = 0.72). CONCLUSION In a rat model, at long term compared to RYGB, SG-TB provides greater and better-maintained weight loss and an increased insulin secretion without impairing nutritional status.
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Affiliation(s)
- Clement Baratte
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France.,Assistance Publique-Hôpitaux de Paris (AP-HP), Service de chirurgie digestive, œsogastrique et bariatrique, Centre Spécialisé Obésité (CSO) Ile de France Nord, Hôpital Bichat-Claude Bernard, 16 rue Henri Huchard, 75018, Paris, France
| | - Alexandra Willemetz
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France
| | - Lara Ribeiro-Parenti
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France.,Assistance Publique-Hôpitaux de Paris (AP-HP), Service de chirurgie digestive, œsogastrique et bariatrique, Centre Spécialisé Obésité (CSO) Ile de France Nord, Hôpital Bichat-Claude Bernard, 16 rue Henri Huchard, 75018, Paris, France
| | - Claire Carette
- Université de Paris Cité, F-75015, Paris, France.,Assistance Publique-Hôpitaux de Paris, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Hôpital Européen Georges Pompidou, 75015, Paris, France
| | - Simon Msika
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France.,Assistance Publique-Hôpitaux de Paris (AP-HP), Service de chirurgie digestive, œsogastrique et bariatrique, Centre Spécialisé Obésité (CSO) Ile de France Nord, Hôpital Bichat-Claude Bernard, 16 rue Henri Huchard, 75018, Paris, France
| | - Andre Bado
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France
| | - Sebastien Czernichow
- Université de Paris Cité, F-75015, Paris, France.,Assistance Publique-Hôpitaux de Paris, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Hôpital Européen Georges Pompidou, 75015, Paris, France.,Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), F-75004, Paris, France
| | - Maude Le Gall
- Université de Paris Cité, F-75015, Paris, France.,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France
| | - Tigran Poghosyan
- Université de Paris Cité, F-75015, Paris, France. .,INSERM, U1149, Centre de Recherche sur l'Inflammation, 75018, Paris, France. .,Assistance Publique-Hôpitaux de Paris (AP-HP), Service de chirurgie digestive, œsogastrique et bariatrique, Centre Spécialisé Obésité (CSO) Ile de France Nord, Hôpital Bichat-Claude Bernard, 16 rue Henri Huchard, 75018, Paris, France.
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Gagner M. Duodeno-Ileal Anastomosis with Self-Assembling Magnets: Initial Concepts and Basis of This Operation. Obes Surg 2021; 32:932-933. [PMID: 34748157 DOI: 10.1007/s11695-021-05771-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Michel Gagner
- Hôpital du Sacre Coeur, Montreal, Canada. .,Westmount Square Surgical Center, Westmount, Canada.
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Abstract
BACKGROUND Medical treatment fails to provide adequate control for many obese patients with type 2 diabetes mellitus (T2DM). A comparative observational study of bariatric procedures was performed to investigate the time at which patients achieve glycemic control within the first 30 postoperative days following sleeve gastrectomy (SG), mini-gastric bypass (MGB), and diverted sleeve gastrectomy with ileal transposition (DSIT). METHODS Included patients had a body mass index (BMI) ≥30 kg/m2; T2DM for ≥3 years, HbA1C > 7 % for ≥3 months, and no significant weight change (>3 %) within the prior 3 months. Surgical procedures performed were SG (n = 49), MGB (n = 93), and DSIT (n = 109). The primary endpoint was the day within the first postoperative month on which mean fasting capillary glucose levels reached <126 mg/dL. Multivariate logistic regression analysis was used to identify predictors of glycemic control. RESULTS The cohort included 251 patients with a mean BMI of 36.04 ± 5.76 kg/m2; age, 52.84 ± 8.52 years; T2DM duration, 13.09 ± 7.54 years; HbA1C, 8.82 ± 1.58 %. On the morning of surgery, mean fasting plasma glucose was 177.63 ± 51.3 mg/dL; on day 30, 131.35 ± 28.7 mg/dL (p < 0.05). Mean fasting plasma glucose of <126 mg/dL was reached in the DSIT group (124.36 ± 20.21 mg/dL) on day 29, and in the MGB group (123.61 ± 22.51 mg/dL), on day 30. The SG group did not achieve target mean capillary glucose level within postoperative 30 days. CONCLUSION During the first postoperative month, glycemic control (<126 mg/dL) was achieved following DSIT and MGB, but not SG. Preoperative BMI and postprandial C-peptide levels were independent predictors of early glycemic control following DSIT.
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