10-year follow-up of laparoscopic vertical banded gastroplasty: good results in selected patients

Gastroesophageal Reflux Disease as an Indication of Revisional Bariatric Surgery-Indication and Results-a Systematic Review and Metanalysis

This systematic review evaluates the indications and results of revisional bariatric surgery (RBS) in gastroesophageal reflux disease (GERD). A systematic literature search and meta-analysis was performed for articles published by April 1, 2021. After examining 722 papers involving 17,437 patients, 48 studies were included (n = 915 patients). RBS for GERD was mostly reported after sleeve gastrectomy (n = 796, 87%) and one anastomosis gastric bypass (n = 62, 6.8%) and was performed due to intractable GERD (71.6%), GERD and weight issues (16%), and biliary reflux (6.2%). Mean follow-up of the studies was 31.5 (3-84) months. Pooled estimation of a meta-analysis of studies reported 7% of GERD following primary surgery needing RBS, in which 99% of the patients experienced remission.

Ten-Year Results of Laparoscopic Sleeve Gastrectomy: Retrospective Matched Comparison with Laparoscopic Adjustable Gastric Banding-Is There a Significant Difference in Long Term?

BACKGROUND

The laparoscopic sleeve gastrectomy (LSG) is the most common bariatric procedure performed worldwide while the laparoscopic adjustable gastric banding (LAGB) has been almost abandoned. Aim of this study was to retrospectively assess 10-year outcomes of LSG through a matched comparison with LAGB.

MATERIALS AND METHODS

Retrospective search of prospectively maintained database of our university was carried out to find all patients that underwent LSG before December 2010. Each subject with LSG was matched one-to-one with a patient that had undergone LAGB in the same period with correspondent preoperative age, BMI, and sex.

RESULTS

A total of 76 patients underwent LSG before 2010 and were all included in this study; a matched group of 76 out of 178 LAGB patients with 10-year follow-up was retrieved from our database. Comparison between the two groups showed better outcomes after LSG at 1 and 5 years but weight loss was comparable with the LAGB group at 10 years (%TWL 22.2 ± 13 vs 21.2 ± 16.1; p = 0.89). No significant difference was found in conversion/removal rate (15.8% vs 18.4%; p = 0.67).

CONCLUSION

LSG is an effective stand-alone bariatric procedure with better outcomes than LAGB in medium term, but results are comparable at 10 years. Subjects undergoing LSG should be informed that conversion to RYGB or OAGB may be necessary to achieve further weight loss or to treat reflux.

Revision of Mason's procedure (vertical banded gastroplasty) to Roux-en-Y gastric bypass: role of an associated fundectomy in weight loss outcomes

BACKGROUND

Vertical banded gastroplasty (VBG) presents a significant rate of long-term complications, and revisions are often necessary. Conversion to Roux-en-Y gastric bypass (RYGB) seems to be preferred, but literature data remain limited.

OBJECTIVES

To analyze the indications, safety, results of conversions from VBG to RYGB, and to identify predictive factors of success or failure.

SETTING

Two specialized centers of bariatric surgery.

METHODS

This bicentric retrospective study included all the patients who benefited from a conversion from VBG to RYGB between 2008 and January 2020. Demographic characteristics, indications, preoperative workups, intraoperative data, complications, and weight loss results were analyzed.

RESULTS

During the study period, 85 patients underwent a conversion to RYGB. The mean body mass index (BMI_ before conversion was 40.6 kg/m². 82.3% of the patients were converted because of weight loss failure and 17.6% because of a complication of their VBG. The global rate of complications was 25%. After an average follow-up of 35 months and a rate of loss to follow-up of 33%, the mean BMI was 33.5 kg/m. The weight loss success rate according to Reinhold's criteria was 64.7%, and resolution of complications was obtained in 89.1%. The association of a fundectomy was a predictive factor of weight loss (odds ratio, .27; P = .04), whereas primary failure of the VBG was a predictive factor of failure.

CONCLUSION

Conversion from VBG to RYGB remains the procedure of choice to achieve satisfying weight loss and resolution of functional complications. The addition of a fundectomy appeared to have a significant positive impact on weight loss outcomes.

Long-Term Complications of Open Mason's Vertical Banded Gastroplasty at a Single Tertiary Center and Literature Review

Vertical banded gastroplasty (VBG), introduced by Mason in 1982, is now discarded because of important long-term complications and technical difficulties to do revisional surgery. We investigated the long-term complications of VBG in our center and compared it with the literature data. Patients who underwent an open VBG at the University Hospital of Nantes between October 1991 and May 2006 were included. We reviewed preoperative clinical data, long-term outcome in weight loss, complications, and revisional surgeries with a long follow-up. Sixty-three patients (52 women and 11 men) were included, with a mean age of 43 ± 10 years and a body mass index of 46.7 ± 8.3 kg/m. The mean follow-up was 8.2 ± 4.2 years. At the end of follow-up, the mean excess weight loss (EWL) was 29.8%. Long-term success (excess weight loss > 50%) of the procedure was observed in 25 patients (39.7%). A second intervention was performed in 15 patients (23.8%), and three needed a third redo procedure. Six patients (40%) had this new intervention for late complications, and nine (60%) for weight regain. Weight loss is satisfying in the long term although the rate of reintervention is high. Long-term complication can be severe, especially with gastric stenosis that could lead to esophageal cancer. A second reintervention could be technically demanding, especially by laparoscopy, and the patients should be referred to a specialized center.

Conversion of both Versions of Vertical Banded Gastroplasty to Laparoscopic Roux-en-Y Gastric Bypass: Analysis of Short-term Outcomes

BACKGROUND

Conversional bariatric surgery has relatively high rates of complications. We aimed to analyze our single-center experience with patients requiring conversional laparoscopic Roux-en-Y gastric bypass (LRYGB) following a failed primary open or laparoscopic vertical banded gastroplasty (OVBG or LVBG, respectively).

METHODS

The records of patients who underwent LRYGB as a conversional procedure after VBG between November 2004 and December 2017 were reviewed. Characteristics, body mass index (BMI), operation time, intraoperative problems, length of hospitalization, and early (< 30 days) morbidity and mortality were analyzed. Data were expressed as mean ± standard deviation or frequency.

RESULTS

A total of 329 patients (81.76% females) who underwent conversional RYGB were included. For the LVBG group (224 patients) and OVBG group (105 patients), respectively, BMI was 34.15 ± 6.38 and 37.79 ± 6.31 kg/m2 (p < 0.05), the operation time was 96.00 ± 31.40 and 123.15 ± 40.26 min (p < 0.05), hospitalization duration was 2.96 ± 1.13 and 3.20 ± 1.20 days (p = 0.08), the early complication rate was 7.14 and 11.43% (p = 0.19), and the reoperation rate was 2.23 and 2.86% (p = 0.73). There were no major intraoperative problems. Three patients with OVBG were converted to open RYGB (2.86%). There was no mortality.

CONCLUSION

The conversion of OVBG and LVBG to laparoscopic RYGB is technically feasible and provides comparably low early morbidity rates and length of hospitalization. However, compared to LVBG, conversional laparoscopic RYGB following OVBG is technically more challenging and time-consuming, with a slightly higher risk of conversion to open surgery. We support the use of such conversional bariatric surgery in specialized, high-volume bariatric centers.

Long-Term (over 13 Years) Follow-Up of Vertical Band Gastroplasty

BACKGROUND

Silastic ring vertical gastroplasty (SRVG) was a popular restrictive procedure 2 and 3 decades ago. However, it was associated with severe complications and a high rate of reoperation due to failure. Examination of long-term outcomes of those patients that underwent SVRG is limited. The aim of our study was to determine the long-term outcomes (over 13 years) of SRVG in our institution and to review the literature of long-term outcomes following SVRG.

METHODS

Following IRB approval, we reviewed patients who underwent SRVG between 1996 and 2001. Weight loss parameters, preoperative comorbidities, were compared to the follow-up data.

RESULTS

In total, 92 patients underwent SRVG, and 89 met the inclusion criteria. Mean age was 52.4 ± 10.6 years and body mass index (BMI) was 46.1 ± 6.5 Kg/m². Preoperative comorbidities rate included diabetes mellitus (19.1%), hypertension (32.5%), hyperlipidemia (21.3%), joints disease (6.7%), mood disorders (7.8%), and dyspeptic disorders (3.3%). Mean length of follow-up was 208.5 ± 16.8 months. Thirty-eight patients (43%) had to be reoperated due to complications and 24 (30%) had an additional bariatric surgery. Follow-up BMI was 34.2 ± 9.8 Kg/m² (p < 0.001). There was no improvement in any of the comorbidities; incidence of joint disease and dyspeptic disorders were significantly higher at the follow-up (p = 0.03, p < 0.001, respectively).

CONCLUSIONS

SRVG procedure was associated with high rates of reoperations and revisions. The majority of our patients showed poor resolution of comorbidities and even worsening of some. Our data confirms that SRVG is not suitable as a bariatric procedure.

Long-Term Outcomes After Bariatric Surgery: a Systematic Review and Meta-analysis of Weight Loss at 10 or More Years for All Bariatric Procedures and a Single-Centre Review of 20-Year Outcomes After Adjustable Gastric Banding

Introduction

Durability is a key requirement for the broad acceptance of bariatric surgery. We report on durability at and beyond 10 years with a systematic review and meta-analysis of all reports providing data at 10 or more years and a single-centre study of laparoscopic adjustable gastric banding (LAGB) with 20 years of follow-up.

Methods

Systematic review with meta-analysis was performed on all eligble reports containing 10 or more years of follow-up data on weight loss after bariatric surgery. In addition, a prospective cohort study of LAGB patients measuring weight loss and reoperation at up to 20 years is presented.

Results

Systematic review identified 57 datasets of which 33 were eligible for meta-analysis. Weighted means of the percentage of excess weight loss (%EWL) were calculated for all papers included in the systematic review. Eighteen reports of gastric bypass showed a weighted mean of 56.7%EWL, 17 reports of LAGB showed 45.9%EWL, 9 reports of biliopancreatic bypass +/− duodenal switch showed 74.1%EWL and 2 reports of sleeve gastrectomy showed 58.3%EWL. Meta-analyses of eligible studies demonstrated comparable results. Reoperations were common in all groups. At a single centre, 8378 LAGB patients were followed for up to 20 years with an overall follow-up rate of 54%. No surgical deaths occurred. Weight loss at 20 years (N = 35) was 30.1 kg, 48.9%EWL and 22.2% total weight loss (%TWL). Reoperation rate was initially high but reduced markedly with improved band and surgical and aftercare techniques.

Conclusion

All current procedures are associated with substantial and durable weight loss. More long-term data are needed for one-anastomosis gastric bypass and sleeve gastrectomy. Reoperation is likely to remain common across all procedures.

Roux-en-Y Gastric Bypass: Ten-year Results in a Cohort of 658 Patients

OBJECTIVE

The aim of this paper is to report, with a high follow-up rate, 10-year results in a large cohort of patients after Roux-en-Y gastric bypass (RYGBP) done essentially by laparoscopy.

BACKGROUND

RYGBP has been performed for 50 years, including 20 years by laparoscopy, yet very few long-term results have been reported, mostly after open surgery.

METHODS

Prospective bariatric database established since the introduction of bariatric surgery. Retrospective data analysis on weight loss, long-term complications, quality of life, and comorbidities.

RESULTS

In all, 658 consecutive patients (515 women/143 men) were included: 554 with primary RYGBP, 104 with reoperative RYGBP. There was 1 (0.15%) postoperative death. Thirty-two (5%) patients died during follow-up from causes unrelated to surgery. Ten years after primary RYGBP, patients lost 28.6 ± 10.5% of their initial weight, corresponding to a mean of 13.2 body mass index (BMI) units. Among them, 72.8% achieved a BMI <35. Weight loss ≥20% was seen in 80.3% and <10% in 3.9% of patients. Results were similar in patients undergoing primary or reoperative RYGBP, but were better in patients who were initially less obese (BMI <50 kg/m) than in superobese patients. Quality of life and comorbidities significantly improved with 80% resolution or improvement of metabolic comorbidities. All patients required supplementations, and 14.6% required long-term reoperation.

CONCLUSIONS

RYGBP provides long-term satisfactory weight loss up to 10 years, and significantly improves quality of life and comorbidities. Long-term complications requiring reoperation can develop. Mineral and vitamin supplementation are universally necessary. Other more effective surgical options should be discussed in patients with very severe obesity.

Laparoscopic Magenstrasse and Mill Gastroplasty (M&M): Midterm Results

BACKGROUND

The Magenstrasse and Mill gastroplasty (M&M) is a gastric restrictive procedure without band or stomach resection. Short-term evaluation of the laparoscopic procedure showed low morbidity and satisfactory results on weight loss. Evidence of the validity of the technique in the longer term is scarce.

METHODS

Data from patients who underwent M&M procedure from May 2012 to September 2015 were retrospectively reviewed. Preoperative clinical characteristics and data up to 4 years after operation were analyzed.

RESULTS

A total of 132 patients were included in this study with a mean age of 46 ± 13.4 years. The mean body mass index (BMI) at the time of procedure was 43 ± 4.5 kg/m². Mean percentage of excess weight loss (%EWL) was 67, 67, 58, and 57% at 1, 2, 3, and 4 years, respectively. The remission rate for diabetes was 36%. About half of the insulin-dependent patients could stop their insulin treatment. Hypertension was resolved in 33.8% of the patients after 4 years. Incidence of vitamin and mineral deficiency was low throughout the study period, less than or equal to 3% for vitamin B12 and 1% for ferritin. Incidence of gastroesophageal reflux did not exceed 15% during the study. Over 75% of the patients reported a good or very good quality of life following the surgery.

CONCLUSION

These results confirm the validity of M&M as a bariatric procedure. The low incidence of vitamin deficiencies and gastroesophageal reflux might be the important asset of M&M over other existing techniques.

Laparoscopic Revision of Failed Bariatric Procedures

Background:

The main indications for revision of bariatric surgery are inadequate weight loss, weight regain, or complications. The objective of revision is to restore the restrictive component and/or add a malabsorptive component.

Objectives:

To evaluate the effectiveness of revisional laparoscopic bariatric surgery for loss of weight and assess the risks and benefits associated with these technically demanding procedures.

Methods:

Revision cases performed between 2001 and 2013 were identified and grouped according to the primary procedure and type of revision. A retrospective analysis was carried out for weight loss as well as perioperative morbidity and mortality.

Results:

The total of 271 patients underwent revisional laparoscopic surgery during the study period and were categorized into four groups. Group 1 (n = 67) had an adjustable gastric band converted to gastric bypass (GBP). Group 2 (n = 128) had a dilated gastric pouch after GBP and underwent pouch reduction. Group 3 (n = 57) had a GBP and underwent pouch reduction and elongation of the biliopancreatic limb. Group 4 (n = 19) had a vertical banded gastroplasty converted to a GBP. The mean total body weight loss for Groups 1 to 4 was 35.3%, 22.9%, 39.4%, and 33.2%, respectively. The average operative times were 185, 75, 142, and 205 minutes; and the average hospitalization was 1.5, 1.0, 2.0, and 2.5 days, respectively. All cases were completed laparoscopically. Concomitant procedures were liver biopsy, cholecystectomy, partial gastrectomy, hiatal, ventral, and internal hernia repairs. Complication rates were 2.9%, 0%, 3.5%, and 5.2% for each of the groups and there were no mortalities.

Conclusion:

Results of revisional bariatric surgery vary depending on the original procedure and the reasons for revision. In particular, if the main reason for reoperation is inadequate weight loss, then the burden is to demonstrate a surgically correctable deficiency. Revisional procedures incorporating malabsorption result in greater weight loss than gastric restriction alone.

Video Revisional Gastric Bypass After Vertical Banded Gastroplasty by a Hybrid Technique: Robotic and Laparoscopic

The video shows, step-by-step, the hybrid laparoscopic conversion of vertical banded gastroplasty (VBG) to Roux-en-Y gastric bypass (RYGB) with a robotic-assisted hand-sewn technique (HST) for gastrojejunal anastomosis (GJA).

[Conversional and endoscopic procedures following bariatric surgery]

The Roux-en-Y gastric bypass (RYGB) is the therapy of choice in bariatric surgery. Sleeve gastrectomy and gastric banding are showing higher rates of treatment failure, reducing obesity-associated morbidity and body weight insufficiently. Moreover, gastroesophageal reflux disease (GERD) can occur refractory to medication. Therefore, a laparoscopic conversion to RYGB can be reasonable as long as specific conditions are fulfilled.Endoscopic procedures are currently being applied to revise bariatric procedures. Therapy failure following RYGB occurs in up to 20 % of cases. Transoral outlet reduction is the minimally invasive method of choice to reduce gastrojejunal anastomosis of the alimentary limb. The diameter of a gastric sleeve can be unwantedly enlarged as well; that can be reduced by placement of a longitudinal full-thickness suture.Severe hypoglycemic episodes can be present in patients following RYGB. Hypoglycemic episodes have to be diagnosed first and can be treated conventionally. Alternatively, a laparoscopic approach according to Branco-Zorron can be used for non-responders. Hypoglycemic episodes can thus be prevented and body weight reduction can be assured.Conversional and endoscopic procedures can be used in patients with treatment failure following bariatric surgery. Note that non-invasive approaches should have been applied intensively before a revisional procedure is performed.

Comparative results of gastric banding in adolescents and young adults

BACKGROUND/PURPOSE

Obesity has become a major public health priority. Because of disappointing results obtained with dietary and medical programs, bariatric surgery has been offered to adolescents, although this practice remains controversial. Our aim was to evaluate laparoscopic adjustable gastric banding (LAGB) in adolescents at 2-year follow-up.

MATERIAL AND METHODS

This prospective study, from 2008 to 2013, compared results between adolescent patients and young adult controls. The LAGB technique and the follow-up program were similar. Weight loss and comorbid disease were analyzed.

RESULTS

Thirty-six adolescents (mean age at surgery=16.7±1.3years) were operated on and compared to 53 young adults (mean age at surgery=21.7±1.9years). The mean weight and BMI at surgery were 124.4±20.7 and 43.9±5.5kg/m(2), respectively. Among the adolescents, none were diabetic or hypertensive. The mean glycated hemoglobin was 5.6±1.2%. In four cases (11%) dyslipidemia was observed. There was no significant difference between the two groups in terms of initial preoperative weight or BMI. The absolute BMI values at 6, 12 and 24months after surgery were comparable between adolescents and young adults: 38.7 vs 39.8, 36.0 vs 37.6 and 33.5 vs 36.1kg/m(2), respectively. The excess weight loss was higher in adolescents at 12 and 24months: 48.6 vs 37.6% (p=0.03); and 62.3 vs 45.5% (p=0.02). During this period, insulin resistance and dyslipidemia decreased similarly in both groups.

CONCLUSION

Provided there is careful selection of patients and a supportive multidisciplinary team, satisfying results can be obtained after LAGB in adolescents, comparable to those obtained in young adults at 2-year follow-up.

Long-Term Results of Primary Vertical Banded Gastroplasty

BACKGROUND

The vertical banded gastroplasty (VBG) used to be a common restrictive bariatric procedure but has been abandoned by many due to a high failure rate, a high incidence of long-term complications, and the newer adjustable gastric band (AGB) and sleeve. However, potential favorable long-term results and the upcoming banded gastric bypass, with a similar mechanical outlet restriction and control of the pouch size, renewed our interest in the VBG. Therefore, we investigated the long-term outcome of primary VBG at the Catharina Hospital in the Netherlands.

METHODS

Patients that underwent a primary VBG between 1998 and 2008 were included. Patients' characteristics, operative details, evolution on weight and comorbidities, complications, and outcome of revisions were reviewed.

RESULTS

A total of 392 patients (80 % female) were reviewed with a mean age of 40 ± 9 years and body mass index of 44 ± 5 kg/m(2). Mean follow-up after VBG was 66 ± 50 months and showed a mean excess weight loss (EWL) of 53 ± 27 % and comorbidity reduction of 54 %. One hundred fifty-two patients (39 %) out of 227 patients (58 %) with long-term complaints underwent revisional surgery. Main reasons for revision were weight regain and vomiting/food intolerance. Analysis before revision showed an outlet dilatation (17 %), pouch dilatation (16 %), and outlet stenosis (10 %). After revision, an additional EWL of 23 % and 33 % further reduction in comorbidities was seen.

CONCLUSIONS

Primary VBG has an acceptable EWL of 53 % and 55 % of comorbidities were improved. However, the high complication rate, often necessitating revision, underlines the limits of this procedure.

FROM COMPLEX EVOLVING TO SIMPLE: CURRENT REVISIONAL AND ENDOSCOPIC PROCEDURES FOLLOWING BARIATRIC SURGERY

Background

Roux-en-Y gastric bypass (RYGB) is a standard therapy in bariatric surgery. Sleeve gastrectomy and gastric banding, although with good results in the literature, are showing higher rates of treatment failure to reduce obesity-associated morbidity and body weight. Other problems after bariatric may occur, as band erosion, gastroesophageal reflux disease and might be refractory to medication. Therefore, a laparoscopic conversion to a RYGB can be an effective alternative, as long as specific indications for revision are fulfilled.

Objective

The objective of this study was to analyse own and literature data on revisional bariatric procedures to evaluate best alternatives to current practice.

Methods

Institutional experience and systematic review from the literature on revisional bariatric surgery.

Results

Endoscopic procedures are recently applied to ameliorate failure and complications of bariatric procedures. Therapy failure following RYGB occurs in up to 20%. Transoral outlet reduction is currently an alternative method to reduce the gastrojejunal anastomosis. The diameter and volume of sleeve gastrectomy can enlarge as well, which can be reduced by endoscopic full-thickness sutures longitudinally. Dumping syndrome and severe hypoglycemic episodes (neuroglycopenia) can be present in patients following RYGB. The hypoglycemic episodes have to be evaluated and usually can be treated conventionally. To avoid partial pancreatectomy or conversion to normal anatomy, a new laparoscopic approach with remnant gastric resection and jejunal interposition can be applied in non-responders alternatively. Hypoglycemic episodes are ameliorated while weight loss is sustained.

Conclusion

Revisional and endoscopic procedures following bariatric surgery in patients with collateral symptomatic or treatment failure can be applied. Conventional non-surgical approaches should have been applied intensively before a revisional surgery will be indicated. Former complex surgical revisional procedures are evolving to less complicated endoscopic solutions.

15-year follow-up of vertical banded gastroplasty: comparison with other restrictive procedures

INTRODUCTION

Vertical banded gastroplasty (VBG) has been the procedure of choice for bariatric surgeries since the 1980s. However, long-term results of VBG have been reported with different opinions, and new restrictive procedures have been innovated and showing variable results. The aim of this study is to analyze the long-term results of our VBG patients.

PATIENT AND METHODS

Between June 1998 and May 2002, 652 morbidly obese patients received VBG, with the initial 40 patients having open procedures and the subsequent 612 patients using a laparoscopic approach. Operative complications, weight loss, and late complications were followed and compared with groups of laparoscopic adjustable gastric banding (LAGB) and sleeve gastrectomy (LSG).

RESULTS

Mean age, preoperative weight, and body mass index (BMI) were 30.96 years, 108.83 kg, and 40.63 kg/m(2), respectively. The overall early postoperative complication rate was 3.4% (22/652). The excess weight loss percentages at 1, 2, 5, and 10 years were 61.04, 59.70, 51.11, and 42.0%, respectively. BMI at 1, 2, 5, and 10 years were 29.64, 29.71, 31.33, and 31.73 kg/m(2), respectively. This result is inferior to the 67% excess weight loss in the LSG group, but is higher than the 38% excess weight loss of the LAGB group. The revision rate is 13.19% (86/652) up to now. Revision surgery was required in 28 (14.0%) patients in the LAGB group and 8 (1.3%) in the LSG group.

CONCLUSION

VBG was an operation with acceptable outcome for treating morbid obesity and metabolic disorders. It sets a standard for new restrictive procedures.

The impact of obesity surgery on musculoskeletal disease

Obesity is an important modifiable risk factor for musculoskeletal disease. A Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-compliant systematic review of bariatric surgery on musculoskeletal disease symptoms was performed. One thousand nineteen papers were identified, of which 43 were eligible for data synthesis. There were 79 results across 24 studies pertaining to physical capacity, of which 53 (67 %) demonstrated statistically significant post-operative improvement. There were 75 results across 33 studies pertaining to musculoskeletal pain, of which 42 (56 %) demonstrated a statistically significant post-operative improvement. There were 13 results across 6 studies pertaining to arthritis, of which 5 (38 %) demonstrated a statistically significant post-operative improvement. Bariatric surgery significantly improved musculoskeletal disease symptoms in 39 of the 43 studies. These changes were evident in a follow-up of 1 month to 10 years.

Laparoscopic Magenstrasse and Mill gastroplasty. First results of a prospective study

BACKGROUND

The Magenstrasse and Mill (M&M) procedure is a vertical gastroplasty creating a tubular pouch extending from the cardia to the antrum. This "incomplete sleeve" avoids gastric resection or band placement. In this paper, we report our experience of the laparoscopic approach of the technique in a selected obese population excluding prominent grazer and/or sweet eaters.

MATERIAL AND METHODS

One hundred patients (39 males, 61 females) underwent the procedure in a prospective trial. Mean age was 40 years (range 18-68). Mean preoperative BMI was 43.2 kg/m(2) (range 35-62).

RESULTS

The procedure was performed by laparoscopy starting with the creation of a circular opening at the junction of antrum and corpus followed by a vertical stapling to the angle of Hiss. Mean duration of the procedure was 67 (range 40-122) min. No intraoperative complication occurred. Mean hospital stay (SD) was 2.5 (0.9) days. The single postoperative complication consisted in a mild stenosis that responded to endoscopic dilatation. After a mean follow-up of 15 months (range 9-24), mean percentage of excess body weight loss (SD) was 48(14), 59(18) and 68(24)%, respectively at 3, 6, and 12 months. Quality of life appeared satisfactory with a low incidence of gastroesophageal reflux. The procedure was associated with improvement or resolution of diabetes, arterial hypertension, and dyslipemia at 1 year.

CONCLUSIONS

Our experience demonstrated that the M&M procedure could be performed safely laparoscopically. The satisfactory results on weight loss, obesity-associated mordities, and quality of life will need to be confirmed on longer follow-up.

Rejecting the demise of vertical-banded gastroplasty: a long-term single-institute experience

Surgical interventions have proven to be more effective than other measures in the treatment of morbid obesity. The short-term outcomes of the various surgical interventions have been well documented in the literature, with fewer reports on long-term outcomes. The reported long-term outcome of the vertical-banded gastroplasty (VBG) is conflicting. The aim of the present study was to evaluate our long-term experience with VBG. A retrospective review of a prospectively maintained database was conducted. Records of patients who underwent VBG five or more years ago were retrieved. An analysis of the long-term weight changes and reported complications was conducted. The study included 150 patients: 43 males (29%) and 107 females (71%). Their mean age was 30 years old (12-53), and the mean body mass index (BMI) was 47 ± 8.4 kg/m2. Patients were followed up for an average of 8 years (5-11). More than 60 % of patients had good long-term weight loss (EWL > 50%). A significant negative correlation was found between the excess weight loss percent (EWL%) and the pre-operative BMI (p < 0.05). The differences in EWL% between males and females were not significant (p = 0.061). Nevertheless, the change in EWL% over time for both males and females was significant (p = 0.004). Revision surgery was required in seven patients (4.7%). Five patients had conversion of VBG to gastric bypass (3.3%), while two patients (1.3%) had reversal of the procedure. Late complications included mesh erosion in three cases, staple line dehiscence in two patients, and stomal stenosis in six patients. VBG could be a long-term effective intervention for the treatment of morbid obesity. Good selection is the cornerstone for long-term success. Late complication rate is acceptable after VBG. VBG is a specifically useful tool under stringent financial circumstances.

Gender influence on long-term weight loss after three bariatric procedures: gastric banding is less effective in males in a retrospective analysis

BACKGROUND

Identifying factors that influence weight loss after bariatric surgery is one way to predict a successful surgical outcome. Knowledge of the effect of gender on weight loss after bariatric surgery has not been well demonstrated in the literature despite being noted in every day practice. The aim of this study was to find the influence of gender on long-term weight loss after bariatric surgery.

METHODS

A retrospective analysis of data retrieved from a prospectively maintained bariatric database was conducted.

RESULTS

The study included 640 consecutive patients. Their mean age was 38 ± 10 years, mean preoperative body mass index was 44.9 ± 8.4 kg/m2, and mean preoperative excess weight (EW %) was 108.3 ± 38.4%. The mean of the average excess weight loss (EWL %) was 43.3 ± 42.4%. Three procedures were utilized: Roux-en-Y gastric bypass (RYGB), vertical banded gastroplasty (VBG), and gastric banding (GB). Both VBG and RYGB induced significantly more EWL % than GB (d = 22.1%, p < 0.001 and d = 16, p = 0.02, respectively). In patients who underwent VBG and GB, males had significantly lower preoperative EW % (Student t = -4.86, p < 0.001, and Student t = 4.69, p < 0.001, respectively), and postoperative mean of the average EWL % (Student t = -2.43, p = 0.016, and Student t = -3.33, p = 0.002, respectively) than females. In patients who underwent RYGB, there were no differences in the preoperative EW % (t = -1.03, p = 0.309) or the mean of the average EWL % (t = 0.406, p = 0.688). The simple linear regression model used to explain the variability in EWL %, accounted for by the variability in the preoperative EW %, was significant (F = 180, p < 0.001). Analysis of the residual errors in predicting the EWL % revealed no significant difference between males and females after VBG and after RYGB (t = 0.117, p = 0.907 and t = 1.052, p = 0.3, respectively), while it was significant after GB (t = -2.999, p = 0.003).

CONCLUSION

From our experience, we suggest that GB not to be offered as a first choice for obese male patients.

Systematic review on reoperative bariatric surgery: American Society for Metabolic and Bariatric Surgery Revision Task Force

BACKGROUND

Reoperative bariatric surgery has become a common practice in many bariatric surgery programs. There is currently little evidence-based guidance regarding specific indications and outcomes for reoperative bariatric surgery. A task force was convened to review the current evidence regarding reoperative bariatric surgery. The aim of the review was to identify procedure-specific indications and outcomes for reoperative procedures.

METHODS

Literature search was conducted to identify studies reporting indications for and outcomes after reoperative bariatric surgery. Specifically, operations to treat complications, failed weight loss, and weight regain were evaluated. Abstract and manuscript reviews were completed by the task force members to identify, grade, and categorize relevant studies.

RESULTS

A total of 819 articles were identified in the initial search. After review for inclusion criteria and data quality, 175 articles were included in the systematic review and analysis. The majority of published studies are single center retrospective reviews. The evidence supporting reoperative surgery for acute and chronic complications is described. The evidence regarding reoperative surgery for failed weight loss and weight regain generally demonstrates improved weight loss and co-morbidity reduction after reintervention. Procedure-specific outcomes are described. Complication rates are generally reported to be higher after reoperative surgery compared to primary surgery.

CONCLUSION

The indications and outcomes for reoperative bariatric surgery are procedure-specific but the current evidence does support additional treatment for persistent obesity, co-morbid disease, and complications.

Gastric Cancer After Restrictive Bariatric Surgery: A Clinical Pitfall

Although vertical banded gastroplasty is rarely performed at present, most bariatric surgery departments continue to follow up patients who underwent this procedure in the past few decades. In view of this, it is advisable for bariatric and general surgeons to know how to diagnose the very rare event of the development of a gastric cancer after this restrictive procedure. In this report, 2 cases of gastric cancer occurring years after vertical banded gastroplasty are presented, and clinical presentation and diagnostic difficulties are discussed.

Risk Factors for Conversion from Laparoscopic to Open Surgery: Analysis of 2138 Converted Operations in the American College of Surgeons National Surgical Quality Improvement Program

Minimal access procedures have influenced surgical practice and patient expectations. Risk of laparoscopic conversion to open surgery is frequently cited but vaguely quantified. The present study examines three common procedures to identify risk factors for laparoscopic conversion to open (LCO) events. Cross-sectional analysis using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP; 2005 to 2009) identified cases with laparoscopic procedure codes for appendectomy, cholecystectomy, and bariatric procedures. The primary outcome was conversion of a laparoscopic procedure to its open equivalent. Summary statistics for laparoscopic and LCO groups were compared and logistic regression analysis was used to estimate patient and operative risk factors for conversion. Of 176,014 selected laparoscopic operations, 2,138 (1.2%) were converted. Most patients were female (68%) and white (71.2%); mean age was 45.1 years. LCO cholecystectomy was significantly more likely (n = 1526 [1.9%]) and LCO bariatric procedures were less likely (n = 121 [0.3%]); appendectomy was intermediate (n = 491 [1.0%], P < 0.001). Patient factors associated with LCO included male sex ( P < 0.001), age 30 years or older ( P < 0.025), American Society of Anesthesiologists Class 2 to 4 ( P < 0.001), obesity ( P < 0.01), history of bleeding disorder ( P = 0.036), or preoperative systemic inflammatory response syndrome or sepsis ( P < 0.001). LCO was associated with greater incidence of postoperative complications, including death, organ space surgical site infection, sepsis, wound dehiscence, and return to the operating room ( P < 0.001). Overall LCO incidence is low in hospitals participating in ACS-NSQIP. Conversion risk factors include patient age, sex, obesity, and preoperative comorbidity as well as the procedure performed. This information should be valuable to clinicians in discussing conversion risk with patients.

Short- and long-term outcomes of vertical banded gastroplasty converted to Roux-en-Y gastric bypass

BACKGROUND

Vertical banded gastroplasty (VBG) often necessitates revisional surgery for weight regain or symptoms related to gastric outlet obstruction. Roux-en-Y gastric bypass (RYGB) is considered as the revisional procedure of choice. However, revisional bariatric surgery is associated with relatively higher rates of complications. The aim of the current study is to analyse our single-centre experience with patients requiring revisional RYGB following primary VBG.

METHODS

Retrospective review of the prospectively collected database identified 153 patients who underwent RYGB as a revisional procedure after VBG from Feb 2004-Feb 2011. Early and late complications, weight data and resolution of symptoms related to gastric outlet obstruction were analysed.

RESULTS

One hundred twenty-three females and 30 males underwent revisional RYGB post VBG. Mean age was 44.4 (15-74) years with a mean pre-operative body mass index (BMI) of 34.2 (23.5-65.5) kg/m(2). Mean hospital stay was 4.3 days. Early complication rate was 3.9 % with a 30-day re-operation rate of 1.3 %. Mortality and leak rate were zero. After a mean follow-up of 48 months, the mean BMI decreased significantly to 28.8 kg/m(2) and a complete resolution of the obstructive symptoms was achieved in nearly all patients. Late complications developed in 11 (7.7 %) of the patients of which seven (4.9 %) required surgery.

CONCLUSIONS

Revisional RYGB following VBG is technically challenging but safe with low rates of morbidity and mortality, comparable to primary RYGB. It produces a significant reduction in body weight and in symptoms resolution. We recommend RYGB as the procedure of choice in patients requiring revisional surgery following VBG.

Long-term outcomes after bariatric surgery: fifteen-year follow-up of adjustable gastric banding and a systematic review of the bariatric surgical literature

OBJECTIVE

To describe the long-term outcomes after laparoscopic adjustable gastric banding (LAGB) and compare these with the published literature on bariatric surgery.

BACKGROUND

Because obesity is a chronic disease, any proposed obesity treatment should be expected to demonstrate long-term durability to be considered effective. Yet for bariatric surgery, few long-term weight loss data are available. We report our 15-year follow-up data after LAGB and provide a systematic review of the peer-reviewed literature for weight loss at 10 years or more after bariatric surgical procedures.

METHODS

We performed a prospective longitudinal cohort study of LAGB patients using an electronic database system (LapBase) to track progress, measure weight changes, and document revisional procedures. The evolution of the LAGB procedure was recognized, and revisional rates for 3 separate periods between September 1994 and December 2011 were described. In addition, we performed a systematic review of the peer-reviewed published literature collecting all reports that included weight loss data at or beyond 10 years.

RESULTS

A total of 3227 patients, with a mean age of 47 years and a mean body mass index of 43.8 kg/m, were treated by laparoscopic adjustable gastric band placement between September 1994 and December 2011. Seven hundred fourteen patients had completed at least 10 years of follow-up. Follow-up was intact in 81% of patients overall and 78% of those beyond 10 years. There was no perioperative mortality for the primary placement or for any revisional procedures. There was 47.1% of excess weight loss (% EWL) at 15 years [n = 54; 95% confidence interval (CI) = 8.3] and 62% EWL at 16 years (n = 14; 95% CI = 13.6). There was a mean of 47.0% EWL (n = 714; 95% CI = 1.3) for all patients who were at or beyond 10 years follow-up. Revisional procedures were performed for proximal enlargement (26%), erosion (3.4%), and port and tubing problems (21%). The band was explanted in 5.6%. The need for revision decreased as the technique evolved, with 40% revision rate for proximal gastric enlargements in the first 10 years, reducing to 6.4% in the past 5 years. The revision group showed a similar weight loss to the overall group beyond 10 years. The systematic review of all bariatric procedures with 10 or more years of follow-up showed greater than 50% EWL for all current procedures. The weighted mean at maximum follow-up for LAGB was 54.2% EWL and for Roux-en-Y gastric bypass was 54.0% EWL.

CONCLUSIONS

The LAGB study from 1 center demonstrates a durable weight loss with 47% EWL maintained to 15 years. This weight loss occurred regardless of whether any revisional procedures were needed. A systematic review shows substantial and similar long-term weight losses for LAGB and other bariatric procedures.

Is laparoscopic sleeve gastrectomy an acceptable primary bariatric procedure in obese patients? Early and 5-year postoperative results

In this paper, we analyze and discuss the possibility of Laparoscopic sleeve gastrectomy being accepted as a primary and definitive procedure for obese patients with comorbidities. This is based on our postoperative and 5 years of follow-up result and comparing them with the data reported in the international literature. For comparison of the results, a narrative revision of the literature was performed, using the Medline, Pubmed, and data base publications (Medline, Lilacs, and Cochrane Library), looking for the term "Sleeve gastrectomy," "Obesity," "Bariatric surgery," "Laparoscopic surgery" including "Review" articles and also other 42 selected papers. The current results demonstrate very low morbidity (<10%), nil mortality (<1%), mean % weight loss after 5 years of follow-up of 57%, very satisfactory results regarding comorbidities or improvement. However, gastroesophageal reflux manifestation after the operation (20% to 31%) and the possibility of regaining weight after 5 years (15% to 75%) appear as points for analysis.

Conversion of vertical banded gastroplasty to stand-alone sleeve gastrectomy or biliopancreatic diversion with duodenal switch

INTRODUCTION

Vertical banded gastroplasty (VBG) originated as a simplified bariatric operation to avoid malabsorption and provide lasting results due to a fixed stoma. Short-term results were excellent (50-70 % excess weight loss); however, patients often displayed maladaptive eating behaviors, and many failed to either achieve or sustain adequate long-term weight loss. Complications were also common including severe reflux and regurgitation, gastric outlet stenosis or stricture, gastrogastric fistula, and breakdown of the staple line.

METHODS

VBG conversions to Roux-en-Y gastric bypass or sleeve gastrectomy as well as endoscopic interventions such as band removal have been described but have very high complication rates. We describe conversion of VBG to biliopancreatic diversion with duodenal switch using endoscopic guidance to take down the VBG staple line and the mesh around the outlet.

RESULTS

This technique can also be used to safely convert a VBG to a stand-alone sleeve gastrectomy.

CONCLUSION

Complication rates have been low by this technique, and we encourage others to adopt this technique.

Twelve year experience of laparoscopic gastric plication in morbid obesity: development of the technique and patient outcomes

BACKGROUND

Laparoscopic Gastric Plication (LGP) is a new restrictive bariatric surgery, previously introduced by the author. The aim of this study is to explain the modifications and to present the 12-year experience, regarding early and long term results, complications and cost.

METHODS

We used LGP for morbid obesity during the past 12 years. Anterior plication (10 cases), one-row bilateral plication while right gastroepiploic artery included (42 cases), and excluded from the plication (104 cases) and two-row plication (644 cases). The gastric greater curvature was plicated using 2/0 prolen from fundus at the level of diaphragm preserving the His angle to just proximal to the pylorus. The anatomic and functional volume of stomach was 50cc and 25cc respectively in two-row method. Ordered postop visits also included evaluation of weight loss, complications, change of diet and control of exercise.

RESULTS

LGP was performed in 800 cases (mean age: 27.5, range: 12 to 65 years, nine under 18). Female to male ratio was 81% to 19% and average BMI was 42.1 (35-59). The mean excess weight loss (EWL) was 70% (40% to 100%) after 24 months and 55% (28% to 100%) after 5 years following surgery. 134 cases (16.7%) did not completed long term follow-up. The average time of follow up was 5 years (1 month to 12 years). 5.5% and 31% of cases complained from weight regain respectively during 4 and 12 years after LGP. The mean time of operation was 72 (49-152) minutes and average hospitalization time was 72 hours (24 hours to 45 days). The cost of operation was 2000 $ less than gastric banding or sleeve and 2500 $ less than gastric bypass. Eight patients out of 800 cases (1%) required reoperation due to complications like: micro perforation, obstruction and vomiting following adhesion of His angle. Other complications included hepatitis pneumonia, self-limiting intra-abdominal bleeding and hypocalcaemia.

CONCLUSION

The percentage of EWL in this technique is comparable to other restrictive methods. The technique is safe with 1.6% complication (1% reoperated), and 31% regain during 12 years. The cost of operation is less than the other methods.

The history and evolution of bariatric surgical procedures

The search for the ideal weight loss operation began more than 50 years ago. Surgical pioneers developed innovative procedures that initially created malabsorption, then restricted volume intake, and eventually combined both techniques. Variations, alterations, and modifications of these original procedures, combined with intense efforts to follow and document outcomes, have led to the evolution of modern bariatric surgery. More recent research has focused on the hormonal and metabolic effects of these procedures. These discoveries at the cellular level will help develop possible mechanisms of weight loss and comorbidity reduction beyond the traditional explanation of reduced food consumption and malabsorption.