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Karimi Behnagh A, Abdolhosseini M, Abdollahi A, Banivaheb B, Kabir A. Laparoscopic small bowel length measurement: nonassociative nature of total small bowel length with anthropometric and clinical characteristics in patients undergoing bariatric surgery. Surg Obes Relat Dis 2024:S1550-7289(24)00125-4. [PMID: 38729855 DOI: 10.1016/j.soard.2024.03.018] [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: 06/27/2023] [Revised: 02/25/2024] [Accepted: 03/09/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Small bowel length (SBL) may have an impact on the outcomes of bariatric surgeries, but it can be difficult to make a direct association between SBL and the safety and outcome of bariatric surgeries. OBJECTIVES To address this issue, we set out to devise a predictive model for SBL determination based on clinical and anthropometric variables. SETTING An academic tertiary medical center. METHODS Anthropometric and clinical data, including age, sex, height, weight, and past medical history, were collected upon enrollment. SBL was measured twice during the surgery using a marked grasper. In all cases, measurements were carried out by a single surgeon. To create a predictive model, a 2-step approach was employed. In the first step, linear regression was used to determine influential variables. In the second step, all variables with a P value < .2 were entered into a multivariate regression model. RESULTS Overall, 961 bariatric candidates were enrolled. The mean age of the participants was 40.08 years, and 77.5% (n = 745) were female. The mean SBL was 748.90 centimeters. There was a weak but statistically significant positive correlation between SBL with both weight and height. Our univariate linear model determined only anthropometric parameters as a predictor of SBL. The multivariate model also yielded that none of the entered parameters were shown to be accurate predictors of SBL. Moreover, only 4.3% of variances were explainable by this model. CONCLUSION Although we found a weak positive association between height and SBL, this association lacked clinical practicality.
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Affiliation(s)
- Arman Karimi Behnagh
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Arash Abdollahi
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Behrooz Banivaheb
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Kabir
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Karagul S, Senol S, Karakose O, Uzunoglu K, Kayaalp C. One Anastomosis Gastric Bypass versus Roux-en-Y Gastric Bypass: A Randomized Prospective Trial. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:256. [PMID: 38399543 PMCID: PMC10890302 DOI: 10.3390/medicina60020256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024]
Abstract
Background and Objectives: One anastomosis gastric bypass (OAGB) and Roux-en-Y gastric bypass (RYGB) surgeries are effective methods used in bariatric surgery. There are limited randomized studies comparing these procedures over more than 2 years. Here, we aimed to compare the 3-year results of two bariatric procedures. Materials and Methods: Patients included in this randomized prospective study were compared in OAGB and RYGB groups. A total of 55 patients, aged between 18 and 65, were eligible for the study. Thirteen patients who did not accept randomization were excluded. Patients were evaluated at 6, 12, 24, and 36 months postoperatively. Results: Three patients were excluded from the study due to loss of communication during the clinical follow-up and one due to death by amyotrophic lateral sclerosis, which started in the eighth month after surgery. The study was completed with a total of 38 patients (OAGB; n = 20, RYGB; n = 18). Patients in the two groups were similar in terms of age, gender, body mass index (BMI), and obesity-related comorbidities. At the end of 3-year follow-up, BMI in the OAGB and RYGB groups was 28.80 ± 4.53 kg/m2 and 29.17 ± 5.36 kg/m2, respectively (p = 0.822). Percentage total weight loss (TWL%) was similar. No significant differences were found between the groups regarding percentage excess weight loss (EWL%). Remission of comorbidities was similar. De novo refluxes developed in four OAGB patients; there were no occurrences of these in RYGB patients (p = 0.066). Conclusions: Both OAGB and RYGB are effective in the treatment of morbid obesity. The two procedures are similarly successful in terms of obesity-related comorbidities.
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Affiliation(s)
- Servet Karagul
- Department of General Surgery, Samsun Training and Research Hospital, 55090 Samsun, Turkey; (S.S.); (O.K.); (K.U.)
| | - Serdar Senol
- Department of General Surgery, Samsun Training and Research Hospital, 55090 Samsun, Turkey; (S.S.); (O.K.); (K.U.)
| | - Oktay Karakose
- Department of General Surgery, Samsun Training and Research Hospital, 55090 Samsun, Turkey; (S.S.); (O.K.); (K.U.)
| | - Kevser Uzunoglu
- Department of General Surgery, Samsun Training and Research Hospital, 55090 Samsun, Turkey; (S.S.); (O.K.); (K.U.)
| | - Cuneyt Kayaalp
- Private Clinic of Gastroenterological Surgery, 34363 Istanbul, Turkey;
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Michel K, Kuch B, Dengler S, Demir IE, Zeller F, Schemann M. How big is the little brain in the gut? Neuronal numbers in the enteric nervous system of mice, Guinea pig, and human. Neurogastroenterol Motil 2022; 34:e14440. [PMID: 35929768 DOI: 10.1111/nmo.14440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/23/2022] [Accepted: 07/21/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Despite numerous studies on the enteric nervous system (ENS), we lack fundamental knowledge on neuronal densities or total neuron numbers in different species. There are more anecdotal than actual figures on nerve counts. METHODS We used standardized preparation techniques and immunohistochemistry with validated panneuronal markers (human or mouse anti-HuD/C) to determine neuronal densities in specimen from the entire gastrointestinal tract of mice, guinea pig, and humans. In parallel, we measured the dimensions of the gastrointestinal regions in mouse and guinea pig. For humans, we had to rely on literature data. KEY RESULTS The average neuronal densities along the gastrointestinal tract were 35,011 ± 25,017 1/cm2 for the myenteric and 16,685 ± 9098 1/cm2 for the submucous plexus in mice, 24,315 ± 16,627 and 11,850 ± 6122 1/cm2 for guinea pig myenteric and submucous plexus, respectively, and 21,698 ± 9492 and 16,367 ± 5655 1/cm2 for human myenteric and submucous plexus, respectively. The total number of neurons in the ENS was 2.6 million for mice, 14.6 million for guinea pig, and 168 million for human. CONCLUSIONS & INFERENCES This study reports the first comprehensive nerve cell count in mice, guinea pig, and human ENS. Neuronal densities were comparable between the three species and the differences in the total numbers of enteric neurons are likely due to body size and intestinal length. The number of enteric neurons is comparable to the number of neurons in the spinal cord for all three species.
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Affiliation(s)
- Klaus Michel
- Human Biology, Technical University of Munich, Freising, Germany
| | - Birgit Kuch
- Human Biology, Technical University of Munich, Freising, Germany
| | - Sophie Dengler
- Human Biology, Technical University of Munich, Freising, Germany
| | - Ihsan Ekin Demir
- Surgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Michael Schemann
- Human Biology, Technical University of Munich, Freising, Germany
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Revisional Surgery After One Anastomosis/Minigastric Bypass: an Italian Multi-institutional Survey. Obes Surg 2022; 32:256-265. [PMID: 34973123 PMCID: PMC8795019 DOI: 10.1007/s11695-021-05779-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 11/04/2021] [Accepted: 11/04/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Efficacy and safety of OAGB/MGB (one anastomosis/mini gastric bypass) have been well documented both as primary and as revisional procedures. However, even after OAGB/MGB, revisional surgery is unavoidable in patients with surgical complications or insufficient weight loss. METHODS A questionnaire asking for the total number and demographics of primary and revisional OAGB/MGBs performed between January 2006 and July 2020 was e-mailed to all S.I.C. OB centres of excellence (annual caseload > 100; 5-year follow-up > 50%). Each bariatric centre was asked to provide gender, age, preoperative body mass index (BMI) and obesity-related comorbidities, previous history of abdominal or bariatric surgery, indication for surgical revision of OAGB/MGB, type of revisional procedure, pre- and post-revisional BMI, peri- and post-operative complications, last follow-up (FU). RESULTS Twenty-three bariatric centres (54.8%) responded to our survey reporting a total number of 8676 primary OAGB/MGBS and a follow-up of 62.42 ± 52.22 months. A total of 181 (2.08%) patients underwent revisional surgery: 82 (0.94%) were suffering from intractable DGER (duodeno-gastric-esophageal reflux), 42 (0.48%) were reoperated for weight regain, 16 (0.18%) had excessive weight loss and malnutrition, 12 (0.13%) had a marginal ulcer perforation, 10 (0.11%) had a gastro-gastric fistula, 20 (0.23%) had other causes of revision. Roux-en-Y gastric bypass (RYGB) was the most performed revisional procedure (109; 54%), followed by bilio-pancreatic limb elongation (19; 9.4%) and normal anatomy restoration (19; 9.4%). CONCLUSIONS Our findings demonstrate that there is acceptable revisional rate after OAGB/MGB and conversion to RYGB represents the most frequent choice.
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Wagner M, Mayer BFB, Bodenstedt S, Kowalewski KF, Nickel F, Speidel S, Fischer L, Kenngott HG, Müller-Stich BP. Comparison of Conventional Methods for Bowel Length Measurement in Laparoscopic Surgery to a Novel Computer-Assisted 3D Measurement System. Obes Surg 2021; 31:4692-4700. [PMID: 34331186 PMCID: PMC8490232 DOI: 10.1007/s11695-021-05620-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/05/2022]
Abstract
Purpose Accurate laparoscopic bowel length measurement (LBLM), which is used primarily in metabolic surgery, remains a challenge. This study aims to three conventional methods for LBLM, namely using visual judgment (VJ), instrument markings (IM), or premeasured tape (PT) to a novel computer-assisted 3D measurement system (BMS). Materials and Methods LBLM methods were compared using a 3D laparoscope on bowel phantoms regarding accuracy (relative error in percent, %), time in seconds (s), and number of bowel grasps. Seventy centimeters were measured seven times. As a control, the first, third, fifth, and seventh measurements were performed with VJ. The interventions IM, PT, and BMS were performed following a randomized order as the second, fourth, and sixth measurements. Results In total, 63 people participated. BMS showed better accuracy (2.1±3.7%) compared to VJ (8.7±13.7%, p=0.001), PT (4.3±6.8%, p=0.002), and IM (11±15.3%, p<0.001). Participants performed LBLM in a similar amount of time with BMS (175.7±59.7s) and PT (166.5±63.6s, p=0.35), but VJ (64.0±24.0s, p<0.001) and IM (144.9±55.4s, p=0.002) were faster. Number of bowel grasps as a measure for the risk of bowel lesions was similar for BMS (15.8±3.0) and PT (15.9±4.6, p=0.861), whereas VJ required less (14.1±3.4, p=0.004) and IM required more than BMS (22.2±6.9, p<0.001). Conclusions PT had higher accuracy than VJ and IM, and lower number of bowel grasps than IM. BMS shows great potential for more reliable LBLM. Until BMS is available in clinical routine, PT should be preferred for LBLM. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s11695-021-05620-6.
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Affiliation(s)
- Martin Wagner
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany
| | - Benjamin F B Mayer
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany
| | - Sebastian Bodenstedt
- Division of Translational Surgical Oncology, National Center for Tumor Diseases, Partner-Site Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Karl-Friedrich Kowalewski
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany.,Department of Urology and Urological Surgery, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer, 68167, Mannheim, Germany
| | - Felix Nickel
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany
| | - Stefanie Speidel
- Division of Translational Surgical Oncology, National Center for Tumor Diseases, Partner-Site Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Lars Fischer
- Department for General and Visceral Surgery, Hospital Mittelbaden, Balger Str. 50, 76532, Baden-Baden, Germany
| | - Hannes G Kenngott
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany
| | - Beat-Peter Müller-Stich
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Im Neuenheimer Feld 420, 69120, Heidelberg, Germany.
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Pizza F, Lucido FS, D'Antonio D, Tolone S, Gambardella C, Dell'Isola C, Docimo L, Marvaso A. Biliopancreatic Limb Length in One Anastomosis Gastric Bypass: Which Is the Best? Obes Surg 2021; 30:3685-3694. [PMID: 32458362 DOI: 10.1007/s11695-020-04687-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND The use of one anastomosis gastric bypass (OAGB) is rapidly spreading. Concerns about biliary reflux and malabsorption with consequent nutritional deficits exist, so studies on biliopancreatic limb (BPL) adequate length in OAGB are required to balance excess weight loss in percentage (% EWL), resolution of comorbidities, and nutritional deficit. The purpose was to evaluate, at 2 years after OAGB, the effects of BPL length on weight loss, resolution of comorbidity, and nutritional deficiencies in patients. METHODS From January 2015 to January 2017, 180 patients were collected into three groups based BPL length: group A, 150 cm; group B, 180 cm; and group C, 200 cm. Aims were to compare %EWL, co-morbidity resolution rates, nutritional parameters, and morbidity/mortality in the three groups. RESULTS The total number of patients was 180: 60 for each group. One hundred seventy-two (95%) patients attended the 1-year follow-up (group A = 58; group B = 58, group C = 56). One hundred fifty-seven (87%) patients attended the 2-year follow-up (group A = 52 (87%); group B = 53 (88%); group C = 52 (87%)). There was no statistically significant difference in %EWL, %TWL, T2DM, and hypertension resolution rates among the groups. About vitamin deficiency, differences were not statistically significant. Iron and ferritin deficiency rate were statistically significant only between A and C groups. CONCLUSIONS According to our evidence, standardization of BPL length shorter than 200 cm is suggested, potentially minimizing malnutrition-related outcomes. Our study seems to show that a BPL of 150-180 cm is safe and effective in terms of EWL and comorbidity improvement with low malnutrition effects even in BMI > 50.
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Affiliation(s)
- Francesco Pizza
- Division of Surgery, Hospital "A. Rizzoli", Lacco Ameno, Naples, Italy.
| | - Francesco Saverio Lucido
- Division of General, Mininvasive and Bariatric Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Dario D'Antonio
- Division of Surgery, Hospital "A. Rizzoli", Lacco Ameno, Naples, Italy
| | - Salvatore Tolone
- Division of General, Mininvasive and Bariatric Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Claudio Gambardella
- Division of General, Mininvasive and Bariatric Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Ludovico Docimo
- Division of General, Mininvasive and Bariatric Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alberto Marvaso
- Division of Surgery, Hospital "A. Rizzoli", Lacco Ameno, Naples, Italy
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Nabil TM, Khalil AH, Mikhail S, Soliman SS, Aziz M, Antoine H. Conventional Versus Distal Laparoscopic One-Anastomosis Gastric Bypass: a Randomized Controlled Trial with 1-Year Follow-up. Obes Surg 2020; 29:3103-3110. [PMID: 31177364 DOI: 10.1007/s11695-019-03991-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is no consensus on the ideal small bowel length that should be bypassed in laparoscopic one-anastomosis gastric bypass (OAGB). This study aimed to compare the safety and efficacy of conventional versus distal techniques of laparoscopic OAGB. METHODS This randomized controlled trial involved 60 adults with morbid obesity scheduled for laparoscopic OAGB randomly assigned to one of the two techniques; conventional technique (fixed anastomosis 200 cm from the ligament of Treitz) and distal technique (anastomosis 400 cm from the ileocecal valve). Total small bowel length (TSBL) was measured in all cases. Quality of life was assessed using the Gastrointestinal Quality of Life Index (GIQLI). Outcome measures were excess body weight loss percentage (EBWL%), resolution of associated comorbidities, frequency of nutritional deficiencies, and quality of life. RESULTS No patients were lost to follow-up. The two groups were comparable in TSBL, EBWL%, and complete resolution of comorbidities up to 12 months. The percentage of afferent loop length to TSBL was significantly higher in the distal group (p < 0.001) but was not correlated with EBWL%. The levels of hemoglobin, cholesterol, triglycerides, iron, and albumin were significantly lower and parathormone hormone was higher in the distal group. The GIQLI score was significantly higher in the conventional group during follow-up. CONCLUSION OAGB achieves optimum results when the afferent loop length is 200 cm; bypassing more than 200 cm does not improve weight loss or comorbidity resolution. Measuring TSBL is recommended to avoid excessive small bowel shortening that increases the risk of nutritional consequences.
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Affiliation(s)
- Tamer M Nabil
- Department of General Surgery, Beni Suef University, Beni Suef, Egypt
| | - Ahmed H Khalil
- Department of General Surgery, Cairo University, Fom El Khalig, Cairo, Egypt.
| | - Sameh Mikhail
- Department of General Surgery, Cairo University, Fom El Khalig, Cairo, Egypt
| | - Salah S Soliman
- Department of General Surgery, Fayoum University, Faiyum, Egypt
| | - Mostafa Aziz
- Department of General Surgery, Cairo University, Fom El Khalig, Cairo, Egypt
| | - Halepian Antoine
- Department of General Surgery, Cairo University, Fom El Khalig, Cairo, Egypt
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Karagül S, Kayaalp C. Repeated stretched or non-stretched small bowel length measurements in healthy individuals. Turk J Surg 2018; 35:1-5. [PMID: 32550296 DOI: 10.5578/turkjsurg.4087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 02/13/2018] [Indexed: 01/05/2023]
Abstract
Objectives The aim of the present study was to contribute to the establishment of a standard method of small bowel measurement by comparing repeated small bowel length measurements with and without stretching in healthy individuals. Material and Methods Small bowel measurement was randomly performed in 24 healthy liver donors. Three repetitive measurements were performed with complete stretching in 12 cases; whereas, 3 consecutive measurements were made without any stretching in the other 12 patients. Living donor hepatectomy continued uneventfully in all cases. Results In the non-stretched group, the second measurement was 199 cm shorter than the first measurement (p <0.001). In the third measurement, this shortening had increased further, and the difference from the first measurement was 234 cm on average (p <0.001). In the stretched group, a shortening of approximately 135 cm between the first and second measurements was noted. In the third measurement, an improvement of 4% was observed in contrast to the non-stretched method, with a mean reduction of 105 cm in the small bowel length compared with the first measurement (p <0.001). Conclusion Stretching technique can reduce error rate in repeated small bowel measurements.
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Affiliation(s)
- Servet Karagül
- Karaciğer Transplantasyon Enstitüsü, Cerrahi Anabilim Dalı, Malatya, Türkiye
| | - Cüneyt Kayaalp
- Karaciğer Transplantasyon Enstitüsü, Cerrahi Anabilim Dalı, Malatya, Türkiye
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