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El Ansari W, El-Menyar A, El-Ansari K, Al-Ansari A, Lock M. Cumulative Incidence of Venous Thromboembolic Events In-Hospital, and at 1, 3, 6, and 12 Months After Metabolic and Bariatric Surgery: Systematic Review of 87 Studies and Meta-analysis of 2,731,797 Patients. Obes Surg 2024; 34:2154-2176. [PMID: 38602603 PMCID: PMC11127857 DOI: 10.1007/s11695-024-07184-7] [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: 12/28/2023] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 04/12/2024]
Abstract
Systematic review/meta-analysis of cumulative incidences of venous thromboembolic events (VTE) after metabolic and bariatric surgery (MBS). Electronic databases were searched for original studies. Proportional meta-analysis assessed cumulative VTE incidences. (PROSPERO ID:CRD42020184529). A total of 3066 records, and 87 studies were included (N patients = 4,991,683). Pooled in-hospital VTE of mainly laparoscopic studies = 0.15% (95% CI = 0.13-0.18%); pooled cumulative incidence increased to 0.50% (95% CI = 0.33-0.70%); 0.51% (95% CI = 0.38-0.65%); 0.72% (95% CI = 0.13-1.52%); 0.78% (95% CI = 0-3.49%) at 30 days and 3, 6, and 12 months, respectively. Studies using predominantly open approach exhibited higher incidence than laparoscopic studies. Within the first month, 60% of VTE occurred after discharge. North American and earlier studies had higher incidence than non-North American and more recent studies. This study is the first to generate detailed estimates of the incidence and patterns of VTE after MBS over time. The incidence of VTE after MBS is low. Improved estimates and time variations of VTE require longer-term designs, non-aggregated reporting of characteristics, and must consider many factors and the use of data registries. Extended surveillance of VTE after MBS is required.
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Affiliation(s)
- Walid El Ansari
- Department of Surgery, Hamad Medical Corporation, 3050, Doha, Qatar.
- College of Medicine, Qatar University, Doha, Qatar.
- Department of Clinical Population Health, Weill Cornell Medicine-Qatar, Doha, Qatar.
| | - Ayman El-Menyar
- Clinical Research, Trauma and Vascular Surgery, Hamad Medical Corporation, Doha, Qatar
- Department of Clinical Medicine, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Kareem El-Ansari
- Faculty of Medicine, St. George's University, Saint George's, Grenada
| | | | - Merilyn Lock
- Department of Exercise Science, Health and Epidemiology, College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
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Santos-Sousa H, Amorim-Cruz F, Nogueiro J, Silva A, Amorim-Cruz I, Ferreira-Santos R, Bouça-Machado R, Pereira A, Resende F, Costa-Pinho A, Preto J, Lima-da-Costa E, Barbosa E, Carneiro S, Sousa-Pinto B. Preoperative risk factors for early postoperative bleeding after Roux-en-Y gastric bypass surgery: a systematic review and meta-analysis. Langenbecks Arch Surg 2024; 409:163. [PMID: 38775865 PMCID: PMC11111548 DOI: 10.1007/s00423-024-03346-4] [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: 01/28/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024]
Abstract
PURPOSE Although bariatric surgery is an effective intervention for obesity, it comes with risks such as early postoperative bleeding (EPB). Identifying preoperative risk factors for this complication can help patients' risk stratification and optimization. We performed a systematic review and meta-analysis to find predictors for early postoperative bleeding after Roux-en-Y gastric bypass (RYGB). METHODS We conducted a systematic review, searching PubMed, Cochrane Library, and Web of Science until November 2023. We performed a random-effects meta-analysis to explore preoperative risk factors associated with early postoperative bleeding after RYGB. Sources of heterogeneity were explored by leave-one-out analyses. RESULTS 23 studies were included, comprising 232,488 patients. Male gender (meta-analytical RR = 1.42, 95%CI = 1.21-1.66, I2 = 18%, Q Cochran test p-value = 0.29) and revisional surgery (meta-analytical RR = 1.35, 95%CI = 1.12-1.62, I2 = 22%, Q Cochran test p = 0.21) were associated with higher risk of EPB. On average, patients with EPB were older than the remainder (MD for the mean age = 2.82 years, 95%CI = 0.97-4.67, I2 = 0.00%, Q Cochran test p = 0.46). Except for hypertension (meta-analytical RR = 1.33, 95%CI = 1.02-1.73, I2 = 66%, Q Cochran test p < 0.0001), comorbidities were not associated with a higher risk of EPB. CONCLUSION Preoperative risk factors, including age, gender, hypertension, and revisional bariatric surgery, are associated with early postoperative bleeding after RYGB. Further primary studies, with higher methodological quality, are required to detail more risk factors.
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Affiliation(s)
- Hugo Santos-Sousa
- Obesity Integrated Responsability Unit (CRI-O), São João University Medical Center, Porto, Portugal.
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal.
| | - Filipe Amorim-Cruz
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
- Surgery Department, São João University Medical Center, Porto, Portugal
| | - Jorge Nogueiro
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
- Surgery Department, São João University Medical Center, Porto, Portugal
| | - Alexandre Silva
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | - Inês Amorim-Cruz
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | | | | | - André Pereira
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
- Surgery Department, São João University Medical Center, Porto, Portugal
| | - Fernando Resende
- Obesity Integrated Responsability Unit (CRI-O), São João University Medical Center, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | - André Costa-Pinho
- Obesity Integrated Responsability Unit (CRI-O), São João University Medical Center, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | - John Preto
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | - Eduardo Lima-da-Costa
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
- Surgery Department, São João University Medical Center, Porto, Portugal
| | - Elisabete Barbosa
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
- Surgery Department, São João University Medical Center, Porto, Portugal
| | - Silvestre Carneiro
- Obesity Integrated Responsability Unit (CRI-O), São João University Medical Center, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, 4200 - 319, Portugal
| | - Bernardo Sousa-Pinto
- Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, MEDCIDS, University of Porto, Porto, Portugal
- CINTESIS - Center for Health Technology and Services Research, University of Porto, Porto, Portugal
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Conversion of Adjustable Gastric Banding to Roux-en-Y Gastric Bypass in One or Two Steps: What Is the Best Approach? Analysis of a Multicenter Database Concerning 832 Patients. Obes Surg 2020; 30:5026-5032. [PMID: 32880049 DOI: 10.1007/s11695-020-04951-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND Roux-en-Y gastric bypass (RYGB) is often the preferred conversion procedure for laparoscopic adjustable gastric banding (LAGB) poor responders. However, there is controversy whether it is better to convert in one or two stages. This study aims to compare the outcomes of one and two-stage conversions of LAGB to RYGB. METHODS Retrospective review of a multicenter prospectively collected database. Data on conversion in one and two stages was compared. RESULTS Eight hundred thirty-two patients underwent LAGB conversion to RYGB in seven specialized bariatric centers. Six hundred seventy-three (81%) were converted in one-stage. Patients in the two-stage group were more likely to have experienced technical complications, such as slippage or erosions (86% vs. 37%, p = 0.0001) and to have had a higher body mass index (BMI) (41.6 vs. 39.9 Kg/m2, p = 0.005). There were no differences in postoperative complications and mortality rates between the one-stage and two-stage groups (13.5% vs. 10.8%, and 0.7% vs. 0.0% respectively, p = ns). Mean final BMI and %total weight loss (%TWL) for the one-stage and the two-stage groups were 31.6 vs. 32.4 Kg/m2 (p = ns) and 30.4 vs. 26.8 (p = 0.017) after a mean follow-up of 33 months. Follow-up at 1, 3, and 5 years was 98%, 75%, and 54%, respectively. CONCLUSIONS One-stage conversion of LAGB to RYGB is safe and effective. Two-stage conversion carries low morbidity and mortality in the case of band slippage, erosion, or higher BMI patients. These findings suggest the importance of patient selection when choosing the appropriate conversion approach.
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Safety of Revision Sleeve Gastrectomy Compared to Roux-Y Gastric Bypass After Failed Gastric Banding: Analysis of the MBSAQIP. Ann Surg 2019; 269:299-303. [PMID: 29095195 DOI: 10.1097/sla.0000000000002559] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE The aim of this study was to assess the safety of revisional surgery to laparoscopic sleeve gastrectomy (LSG) compared to laparoscopic Roux-Y gastric bypass (LRYGB) after failed laparoscopic adjustable gastric banding (LAGB). BACKGROUND The number of reoperations after failed gastric banding rapidly increased in the United States during the last several years. A common approach is band removal with conversion to another weight loss procedure such as gastric bypass or sleeve gastrectomy in a single procedure. The safety profile of those procedures remains controversial. METHODS Preoperative characteristics and 30-day outcomes from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program Participant Use Files 2015 were selected for all patients who underwent a 1-stage conversion of LAGB to LSG (conv-LSG) or LRYGB (conv-LRYGB). Conv-LSG cases were matched (1:1) with conv-LRYGB patients by age (±1 year), body mass index (±1 kg/m(2)), sex, and comorbidities including diabetes, hypertension, hyperlipidemia, venous stasis, and sleep apnea. RESULTS A total of 2708 patients (1354 matched pairs) were included in the study. The groups were closely matched as intended. The mean operative time in conv-LRYGB was significantly longer in comparison to conv-LSG patients (151 ± 58 vs 113 ± 45 minutes, P < 0.001). No mortality was observed in either group. Patients after conv-LRYGB had a clinically increased anastomotic leakage rate (2.07% vs 1.18%, P = 0.070) and significantly increased bleed rate (2.66% vs 0.44%, P < 0.001). Thirty-day readmission rate was significantly higher in conv-LRYGB patients (7.46% vs 3.69%, P < 0.001), as was 30-day reoperation rate (3.25% vs 1.26%, P < 0.001). The length of hospital stay was longer in conv-LRYGB. CONCLUSIONS A single-stage conversion of failed LAGB leads to greater morbidity and higher complication rates when converted to LRYGB versus LSG in the first 30 days postoperatively. These differences are particularly notable with regards to bleed events, 30-day reoperation, 30-day readmission, operative time, and hospital stay.
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Khan OA, McGlone ER, Maynard W, Hopkins J, Dexter S, Finlay I, Hewin D, Sedman P, Walton P, Somers S, Reddy M, Small P, Adamo M, Welbourn R. Single-stage conversions from failed gastric band to sleeve gastrectomy versus Roux-en-Y gastric bypass: results from the United Kingdom National Bariatric Surgical Registry. Surg Obes Relat Dis 2018; 14:1516-1520. [DOI: 10.1016/j.soard.2018.06.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 06/07/2018] [Accepted: 06/18/2018] [Indexed: 11/26/2022]
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Outcomes after bariatric surgery according to large databases: a systematic review. Langenbecks Arch Surg 2017; 402:885-899. [PMID: 28780622 DOI: 10.1007/s00423-017-1613-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/27/2017] [Indexed: 12/29/2022]
Abstract
PURPOSE The rapid development of technological tools to record data allows storage of enormous datasets, often termed "big data". In the USA, three large databases have been developed to store data regarding surgical outcomes: the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP), the Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) and the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP). We aimed to evaluate the clinical impact of studies found in these databases concerning outcomes of bariatric surgery. METHODS We performed a systematic review using the Meta-analysis of Observational Studies in Epidemiology guidelines. Research carried out using the PubMed database identified 362 papers. All outcomes related to bariatric surgery were analysed. RESULTS Fifty-four studies, published between 2005 and February 2017, were included. These articles were divided into (1) outcomes related to surgical techniques (12 articles), (2) morbidity and mortality (12), (3) 30-day hospital readmission (10), (4) outcomes related to specific diseases (11), (5) training (2) and (6) socio-economic and ethnic observations in bariatric surgery (7). Forty-two papers were based on data from ACS-NSQIP, nine on data from NIS and three on data from MBSAQIP. CONCLUSIONS This review provides an overview of surgical management and outcomes of bariatric surgery in the USA. Large databases offer useful complementary information that could be considered external validation when strong evidence-based medicine data are lacking. They also allow us to evaluate infrequent situations for which randomized control trials are not feasible and add specific information that can complement the quality of surgical knowledge.
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