Publications by authors named "Shahab Shahabi Shahmiri"
Background: While OAGB shows promise in the short to medium term, its long-term durability, weight trends, blood levels of metabolic factors and nutrients, and potential complications require further exploration through larger, longer-term studies. This study contributes to the growing body of evidence by reporting on the long-term outcomes of patients with severe obesity who underwent OAGB.
Methods And Patients: A retrospective study on prospectively collected data was conducted on a sample of 1917 patients who underwent OAGB between 2010 and 2019 and had a BMI ≥ 35 kg/m.
Background: Bile reflux (BR) is an issue after one anastomosis gastric bypass (OAGB). Cholecystectomy can increase BR in patients without a history of metabolic and bariatric surgery. We aimed to evaluate the effect of cholecystectomy on BR after OAGB.
View Article and Find Full Text PDFThe influence of metabolic and bariatric surgery (MBS) on taste preferences and the pleasurable aspects of appetite may be mediated through its effects on gut hormones, potentially affecting weight loss results. Research indicates that the nature of the MBS performed significantly impacts food cravings in the year following the procedure, with no clear relationship to psychological factors or pre-surgery eating behaviors. During the period from August 2021 to August 2022, a group of adult patients with a body mass index (BMI) of 40 kg/m or above, or 35 kg/m or above with obesity-related medical complications, underwent Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB), or sleeve gastrectomy (SG) at a tertiary academic center focused on MBS.
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- The study investigates the impact of gastro-gastrostomy as a partial reversal technique for patients experiencing hypoalbuminemia after One-Anastomosis Gastric Bypass (OAGB) surgery.
- It analyzed data from 2013 to 2022, finding that among 4640 OAGB patients, 11 had successful gastro-gastrostomy, leading to significant increases in serum albumin levels and improvements in liver enzyme values.
- The results suggest that gastro-gastrostomy is a safe and effective method for treating hypoalbuminemia while still preserving weight loss, but more research is needed to confirm these outcomes.
Article Synopsis
- The study highlights the increasing importance of metabolic and bariatric surgery (MBS) in addressing global obesity, emphasizing the need for rigorous academic and fellowship training for surgeons.
- A Modified Delphi method involving 89 surgeons from 42 countries was used to establish expert consensus on the necessary criteria for surgeons to obtain privileges for performing MBS, reaching agreement on 29 out of 30 statements.
- Key consensus points include the requirement for surgeons to hold a general surgery degree, complete a dedicated fellowship, and adhere to defined learning curves for various MBS procedures, alongside maintaining patient data and collaborating in a multidisciplinary team.
Gastrocolic fistula (GCF) is defined as an abnormal pathological communication between the epithelialized mucosal layers of the stomach and colon. In rare cases, complications following gastric bypass surgery, such as leakage or complicated marginal ulcers, may contribute to the development of a GCF. The laparoscopic approach for managing GCF involves a one-stage procedure that includes resection of the fistula and reconstruction of the gastrointestinal tract.
View Article and Find Full Text PDFBackground: One-anastomosis gastric bypass (OAGB) is gaining more attention in patients with severe obesity and recently is used for patients with body mass index (BMI) < 35 kg/m. In this 5-year single center experience we aim to report our outcomes of using OAGB for patients with BMI < 35 kg/m.
Methods: This is a retrospective analysis of prospectively collected data recorded in to our national obesity registry database.
Purpose: Hypoalbuminemia and anemia are commonly observed indications for one anastomosis gastric bypass (OAGB) reversal and remain significant concerns following the procedure. Sufficient common channel limb length (CCLL) is crucial to minimize nutritional complications. However, limited literature exists regarding the impact of CCLL on OAGB outcomes.
View Article and Find Full Text PDFBackground: In this systematic review, we aim to evaluate the reasons and outcomes behind remnant gastrectomy with or after gastric bypass procedures.
Results: A total of 66 studies examining 1918 patients were included in this study with 70% of female predominance. Twenty studies reported RGB on 1751 patients and 46 studies reported remnant gastrectomy after gastric bypass in 167 patients.
One-anastomosis gastric bypass (OAGB) complications include inadequate weight loss, recurrent weight gain (RWG), and gastroesophageal reflux disease (GERD). Conversion to distal Roux-en-Y gastric bypass (D-RYGB) may be an effective conversional approach. A 38-year-old female underwent OAGB with a body mass index (BMI) of 53 kg/m and 43% initial total weight loss but had RWG to BMI of 44 kg/m over 5 years with refractory GERD symptoms.
View Article and Find Full Text PDFObjective: 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.
Purpose: Gastroesophageal reflux disease (GERD) is an issue after one anastomosis gastric bypass (OAGB) and modification of OAGB with adding an anti-reflux system may decrease the incidence of postoperative GERD. This study aimed to compare the efficacy of the anti-reflux mechanism to treat preoperative GERD and prevent de novo GERD.
Methods: A prospective randomized clinical trial study was conducted on patients with a body mass index of 40 and more from August 2020 to February 2022.
Background: Patients with class I obesity may need metabolic and bariatric surgery (MBS) in the presence of obesity-associated medical problems, but MBS in this class of obesity is under debate. This study aimed to investigate the efficacy and safety of MBS in patients with class I obesity.
Methods And Materials: This study was a historical cohort carried out on 112 patients with class I obesity with body mass index (BMI) of 30-35 kg/m with a 24-month follow-up underwent MBS at Rasoul-e-Akram Hospital.
Purpose: Metabolic and bariatric surgery (MBS) has been shown to enhance the quality of life (QoL) in individuals with obesity. The Bariatric Analysis and Reporting Outcome System (BAROS) is a highly reliable scoring system utilized to assess weight loss, obesity-associated medical conditions, and QoL following MBS. This study aimed to assess the efficacy of sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB), and one anastomosis gastric bypass (OAGB) in improving health outcomes for individuals with severe obesity, employing the BAROS questionnaire.
View Article and Find Full Text PDFBackground: Today, bariatric surgeons face the challenge of treating older adults with class III obesity. The indications and outcomes of Roux-en-Y gastric bypass (RYGB) versus sleeve gastrectomy (SG) also constitute a controversy.
Methods: PubMed, Web of Science and Scopus were searched to retrieve systematic reviews/meta-analyses published by 1 March 2022.
Background: Metabolic and bariatric surgery (MBS) in patients with low body mass index patients is a topic of debate. This study aimed to address all aspects of controversies in these patients by using a worldwide survey.
Methods: An online 35-item questionnaire survey based on existing controversies surrounding MBS in class 1 obesity was created by 17 bariatric surgeons from 10 different countries.
Introduction: One-anastomosis gastric bypass (OAGB) complication, such as leakage, can be dangerous and should be managed properly, yet little data exist in the literature regarding the management of leaks after OAGB, and there are no guidelines to date.
Methods: The authors performed a systematic review and meta-analysis of the literature and 46 studies, examining 44 318 patients were included.
Results: There were 410 leaks reported in 44 318 patients of OAGB published in the literature, which represents a prevalence of 1% of leaks after OAGB.
Purpose: The present research was conducted to evaluate the effect of the severity of dumping syndrome (DS) on weight loss outcomes after Roux-en-Y gastric bypass (RYGB) in patients with class III obesity.
Methods: The present retrospective cohort study used the dumping symptom rating scale (DSRS) to evaluate the severity of DS and its correlation with weight loss outcomes in 207 patients 1 year after their RYGB. The patients were assigned to group A with mild-to-moderate DS or group B with severe DS.
Background: Weight regain (WR) and insufficient weight loss (IWL) after sleeve gastrectomy (SG) are challenging issues. This study aimed to evaluate the predictors of WR and IWL after SG.
Methods: In this retrospective analytical study, 568 patients who underwent SG at Hazrat-e Rasool General Hospital, Tehran, Iran, between January 2015 and April 2022 were evaluated.
Background: Obesity makes migraine more prevalent and severe. Serum level of calcitonin gene-related peptide (CGRP) is associated with the severity of migraine attacks. Although the effect of weight and bariatric surgery has been studied on migraine, the role of CGRP in migraine remission after weight loss surgery needs more investigation.
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