Revision of laparoscopic adjustable gastric banding: success or failure?

Secondary Bariatric Surgery-Does the Type of Index Procedure Affect Outcomes After Conversion?

BACKGROUND

Although revisions account for 17% of cases performed at bariatric centers of excellence, scarce data exists on whether index operation type influences outcomes after secondary operations.

OBJECTIVE

We designed a study investigating the effect of primary procedure type on weight loss and perioperative complications after conversion bariatric surgery.

SETTING

Tertiary Referral Hospital, USA.

METHODS

We performed a retrospective review of patients undergoing conversion from sleeve gastrectomy (SG) or adjustable gastric band (AGB) to Roux-en-Y gastric bypass (RYGB) from 2009 to 2019. Post-operatively, we measured short- and medium-term complications and changes in body weight at various time points. Univariate and regression analyses were performed.

RESULTS

Forty-two (SG) patients and 116 (AGB) patients underwent conversion to RYGB, most commonly for GERD (57.1%) in SG patients vs. weight regain (77.6%) in AGB patients. Mean pre-conversion BMI was 36.7 kg/m² (SG) vs 43.8 kg/m² (AGB). Mean time to conversion (months) was 52.9 (SG) vs 94.7 (AGB). Complication rate was 9.5% (SG) vs 6% (AGB) at 30 days (p = 0.48) and 31%(SG) vs 14.5% (AGB) (p = 0.02) at 2 years. Mean post conversion %TWL was 11.6% (SG) vs 24.6% (AGB) in patients with GERD/dysphagia (p = 0.014) and 20.7% (SG) vs 27.6% (AGB) in patients converted for weight-related reasons (p = 0.027) at 1 year. Overall mean %TWL was 13.2% (SG) vs 24.7% (AGB) at 2 years (p < 0.0035).

CONCLUSION

After conversion to RYGB, patients with AGB experience better short- and medium-term weight loss than those with SG, even after accounting for conversion indications. SG to RYGB conversions have a higher resolution of reflux disease.

Adjustable Gastric Banding Conversion to One Anastomosis Gastric Bypass: Data Analysis of a Multicenter Database

INTRODUCTION

One anastomosis gastric bypass (OAGB) has been proposed as a rescue technique for laparoscopic adjustable gastric banding (LAGB) poor responders.

AIM

We sought to analyze, complications, mortality, and medium-term weight loss results after LAGB conversion to OAGB.

METHODS

Data analysis of an international multicenter database.

RESULTS

One hundred eighty-nine LAGB-to-OAGB operations were retrospectively analyzed. Eighty-seven (46.0%) were converted in one stage. Patients operated on in two stages had a higher preoperative body mass index (BMI) (37.9 vs. 41.3 kg/m², p = 0.0007) and were more likely to have encountered technical complications, such as slippage or erosions (36% vs. 78%, p < 0.0001). Postoperative complications occurred in 4.8% of the patients (4.6% and 4.9% in the one-stage and the two-stage group, respectively). Leak rate, bleeding episodes, and mortality were 2.6%, 0.5%, and 0.5%, respectively. The final BMI was 30.2 at a mean follow-up of 31.4 months. Follow-up at 1, 3, and 5 years was 100%, 88%, and 70%, respectively.

CONCLUSION

Conversion from LAGB to OAGB is safe and effective. The one-stage approach appears to be the preferred option in non-complicate cases, while the two-step approach is mostly done for more complicated cases.

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

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.

Management of Slipped Gastric Bands via Creation of a De Novo Tunnel and Band Replacement: a Single-Centre Experience

BACKGROUND

A lack of clarity remains over the optimal strategy for the management of laparoscopic adjustable gastric band (LAGB) slippage, which, although rare (around 3% in our experience), can when acute result in obstruction, gastric erosion or ischaemia. Typically, slipped bands are removed acutely. The aim of this study was to explore outcomes following immediate or delayed resiting of slipped LAGBs in a single centre, comparing simple repositioning with retunnelling and replacement.

METHODS

A retrospective analysis of computerised records, notes and prospectively maintained bariatric databases was undertaken to identify all patients with a slipped LAGB in a single centre.

RESULTS

Thirty-two patients required operative intervention following a diagnosis of slipped LAGB (median time from initial LAGB insertion to slippage 2.9 years). Two (6%) patients underwent band removal and 30 (94%), band revision surgery (25 immediately and five at a planned but expedited procedure).Twenty-four (77%) patients underwent insertion of a new LAGB via a de novo retrogastric tunnel, five (21%) of which required further future operative intervention; whereas, six (23%) patients underwent repositioning of the existing LAGB within the same tunnel, five (83%) of which underwent further operative intervention (log-rank test p = 0.0001). Following LAGB revision, there was no significant further change in BMI (median + 1 kg/m²; range - 13 to + 10 kg/m²).

CONCLUSION

Resiting of slipped LAGBs is safe and maintains weight loss. Although a significant risk of future operative intervention remains, this can be reduced via the creation of a de novo retrogastric tunnel for band resiting.

A comparison of revisional and primary bariatric surgery

BACKGROUND

Revisional surgery is an important component of addressing weight regain and complications following primary bariatric surgery. Owing to provincial need and the complexity of this patient population, a specialized multidisciplinary revision clinic was developed. We sought to characterize patients who undergo revision surgery and compare their outcomes with primary bariatric surgery clinic data.

METHODS

We completed a retrospective chart review of bariatric revision clinic patients compared with primary bariatric surgery patients from December 2009 to June 2014.

RESULTS

We reviewed the charts of 2769 primary bariatric clinic patients, 886 of whom had bariatric surgery, and 534 revision bariatric clinic patients, 83 of whom had revision surgery. Fewer revision clinic patients underwent surgery than primary clinic patients (22% v. 32%). The mean preoperative body mass index (BMI) was 44.7 ± 9.5 in revision patients compared with 45.7 ± 7.6 in primary bariatric surgery patients. Most revision patients had a prior vertical banded gastroplasty (VBG; 48%) or a laparoscopic adjustable gastric band (LAGB; 24%). Bands were removed in 36% of all LAGB patients presenting to clinic. Of the 134 procedures performed in the revision clinic, 83 were bariatric weight loss surgeries, and 51 were band removals. Revision clinic patients experienced a significant decrease in BMI (from 44.7 ± 9.5 to 33.8 ± 7.5, p < 0.001); their BMI at 12-month follow-up was similar to that of primary clinic patients (34.5 ± 7.0, p = 0.7). Complications were significantly more frequent in revision patients than primary patients (41% v. 15%, p < 0.001).

CONCLUSION

A bariatric revision clinic manages a wide variety of complex patients distinct from those seen in a primary clinic. Operative candidates at the revision clinic are chosen based on favourable medical, anatomic and psychosocial factors, keeping in mind the resource constraints of a public health care system.

Psychosocial presentation of female bariatric surgery patients after multiple revisional surgeries: A qualitative study

Bariatric surgery is currently the most viable and cost-effective treatment for obesity. This study aimed to understand, from a female patient’s perspective, what contributed to not achieving or maintaining excess weight loss from a primary laparoscopic adjustable gastric band surgery, leading to subsequent multiple revisional bariatric surgeries. The purposive sample of participants ( N = 17 females) were over 18 years, had a primary failed laparoscopic adjustable gastric band and had more than three revisional procedures. Participants were individually interviewed and data were analysed from a grounded theory methodology to build a causal model with the core category of unrealistic expectations of bariatric surgery and other important conceptual categories.

Laparoscopic adjustable gastric band removal and outcome of subsequent revisional bariatric procedures: A retrospective review of 214 consecutive patients

BACKGROUND

Laparoscopic adjustable gastric band (LAGB) removal is required in cases of slippage, erosion, infection, intolerance, or failure in weight loss. The aim of the study was to follow up the patients who underwent band removal and analyze the outcome of subsequent revisional bariatric procedures.

PATIENTS AND METHODS

A retrospective review of consecutive patients who underwent LAGB removal during 3.5 years. All patients underwent a phone interview in early 2015. Patients were divided to three groups following band removal: without additional surgery, laparoscopic sleeve gastrectomy (LSG) or laparoscopic Roux-en Y gastric bypass (LRYGB), and Redo LAGB(Re-LAGB). Outcome of different revisional procedures was compared according to causes and symptoms before band removal, patient satisfaction, weight loss, quality of life (QOL) questionnaire, and the bariatric analysis and reporting outcome system II (BAROSII) score.

RESULTS

Overall 214 patients (73.8% females) with mean age of 41.9 years were enrolled in the study. The mean time between LAGB placement and removal was 81.0 months. Mean % estimated weight loss (%EWL) was 29.6 at time of band removal. There was no difference between groups in patient age, gender, BMI before LAGB, and most co-morbidities. Patients with 1-5 outpatient visits preferred additional surgery. Patients suffering from vomiting from 1 to 10 times per week preferred revision as LSG or LRYGB. Patients with lower BAROS score underwent LSG or LRYGB. Most of the patients with band intolerance underwent conversion to another bariatric procedure, while patients with band erosion and infected band preferred Re-LAGB. Most of the patients without band gained weight. There was a significant improvement in %EWL (39.9 vs 29.6), QOL (1.08 vs 0.07), and BAROS(2.82 vs-0.11) in patients who underwent additional bariatric surgery before and after band removal irrespective of surgery type.

CONCLUSIONS

Patient selection for different revisional bariatric procedures after LAGB removal is a main point for surgery success. This results in high patient satisfaction, EWL, and QOL. All options (Re-LAGB, LSG, LRYGB) are feasible and safe.

Laparoscopic adjustable gastric banding: efficacy and consequences over a 13-year period

BACKGROUND

Laparoscopic adjustable gastric banding (LAGB) is a common bariatric surgery. Although it is a safe and effective method of weight reduction in short term, it may result in some problems in long term. The purpose of this study was to investigate the consequences of LAGB in long term among morbid obese patients.

METHODS

In this prospective study, 80 patients underwent LAGB using pars flaccida technique from 2001 to 2006. Long-term postoperative consequences and complications of these patients were recorded.

RESULTS

The preoperative mean values of weight and body mass index were 125.5 ± 22.5 kg and 44.5 ± 6.5 kg/m(2), respectively. Over the 13-year follow-up period, 56 patients (84.8%) experienced at least one complication. The most common complications were band erosion (20 patients) and weight regains (13 patients). Fifty-one patients (78.5%) required reoperation. The band of 48 patients (72.7%) was removed; of these, twenty patients (30.3%) underwent other bariatric surgeries. Percent of excess weight loss was 47.1% ± 30.1%, and the success rate was 48.7%.

CONCLUSIONS

LAGB is a successful method with low complications in short term; however, over long term, it results in various complications.

Simultaneous Gastric and Duodenal Erosions due to Adjustable Gastric Banding for Morbid Obesity

Erosion is an uncommon but feared late complication of adjustable gastric banding for morbid obesity. A high index of clinical suspicion is required, since symptoms are usually vague and nonspecific. Diagnosis is confirmed on upper gastrointestinal endoscopy and band removal is the mainstay of treatment, with band revision or conversion to other bariatric modalities at a later stage. Duodenal erosion is a much rarer complication, caused by the connection tubing of the band. We present our experience with a case of simultaneous gastric and duodenal erosions, managed by laparoscopic explantation of the band, primary suture repair of the duodenum, and omentopexy.

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.

[Adjustable gastric band as surgical treatment for morbid obesity. Are worldwide results reproducibles in Spain?]

INTRODUCTION

Adjustable gastric banding is a surgical technique used all over the world for the treatment of morbid obesity. In Spain, the number of patients treated with adjustable gastric banding is far lower than the average worldwide average. A number of reasons have been put forward to explain this difference.

MATERIAL AND METHODS

A program of bariatric surgery by means of implantation of an adjustable gastric banding was started in 2001, together with a dedicated follow-up protocol in order to prevent complications and improve results.

RESULTS

A total of 132 patients were operated on between 2001 and 2011. The mean age of the 102 female and 30 male patients was 39 years, and the mean body mass index was 43. Follow-up was longer than 5 years in 61 patients, while the mean follow-up in the rest was 44.4 months. There was no mortality or severe morbidity. Eight patients (6.06%) underwent reoperation, 3 of them for complications related to the reservoir, 4 for slipping of the band, and one for erosion. One slipped band was removed, and a new one (of the Lap Band type) was inserted. Three slipping bands were converted to other techniques. The percentage excessive body weight loss was maintained in 54.8% of the patients followed-up for longer than 5 years.

CONCLUSIONS

The results of our series are comparable to those reported in the literature and show that, provided that a close follow-up, like that performed by most groups, is implemented, adjustable gastric banding can also be a safe and effective bariatric surgery technique in our country.