Outcomes of Duodenal Switch with a Moderate Common Channel Length and Roux-en-y Gastric Bypass: Does One Pose More Risk?

Common postbariatric surgery emergencies for the acute care surgeon: What you need to know

ABSTRACT

The field of bariatric and metabolic surgery has changed rapidly over the past two decades, with an exponential increase in case volumes being performed because of its proven efficacy for morbid obesity and obesity-related comorbidities. Although this increased volume of procedures has been accompanied by significant decrease in postoperative complication rates, there are numerous potential complications after bariatric surgery that may require urgent or emergent surgical evaluation or interventions. Many of these risks extend well beyond the early postoperative period and can present months to years after the index procedure. Acute care surgeons are increasingly covering most or all of the emergency general surgery services at many centers and must be familiar with the numerous bariatric surgical procedures being performed and their individual complication profile to provide optimal care for these frequently challenging patients. This article provides a focused and concise review of the common bariatric procedures being performed, their early and late complication profiles, and a practical guide to the optimal diagnostic evaluations, surgical interventions, and perioperative management options. The author group includes both acute care surgeons and bariatric surgeons with significant experience in the emergency management of the complicated postbariatric surgical patient.

LEVEL OF EVIDENCE

Literature Synthesis and Expert Opinion; Level V.

Impact on Mid-Term Health-Related Quality of Life after Duodenal Switch: a Systematic Review and Meta-Analysis

PURPOSE

Metabolic and bariatric surgery (MBS) could improve health-related quality of life (HrQoL) for selected patients with obesity. Although biliopancreatic diversion with duodenal switch (BPD-DS) is regarded as the most effective MBS technique in achieving weight loss, no consensus has been reached on the impact of BPD-DS on HrQoL. The aim of this meta-analysis is to assess the mid-term HrQoL after BPD-DS in the management of patients with obesity.

MATERIALS AND METHODS

Cochrane, Embase, APA PsycInfo, PubMed, Scopus, and Web of Science were searched for articles from their inception to August 2022 by two independent reviewers using the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) system. The review was registered prospectively with PROSPERO (CRD42022352073).

RESULTS

From 223 studies screened, twelve studies met the eligibility criteria, with a total of 937 patients with obesity undergoing BPD-DS. Minimal clinically important differences (MCID) were reached for the physical component summary score (PCS) of the 36-Item Short-Form Health Survey (SF-36) (MD = 13.4) and impact of weight on quality of life (IWQOL)-Lite total score (MD = 48.7). Similarly, MCIDs were attained in the Laval questionnaire and SF-36 subscales.

CONCLUSION

Our meta-analysis demonstrated an improvement in mid-term HrQoL after BPD-DS. Despite the promising trends demonstrated in this meta-analysis, further studies with large sample sizes are needed to evaluate the impact of HrQoL on patients with obesity after BPD-DS.

Duodenal Switch Conversion in Non-responders or Weight Recurrence Patients

INTRODUCTION

Several modalities have been proposed to tackle insufficient weight loss and weight regain after bariatric surgery; we aimed to evaluate efficacy and safety of duodenal switch conversion as a salvage procedure.

MATERIAL AND METHODS

Data from patients who underwent duodenal switch conversions (n = 50) were retrospectively studied. Excess weight loss % and total body weight loss % were compared between primary procedure and duodenal switch conversion. Overall complication, emergency department visits, readmissions, reoperation, and mortality rates were described, analyzed, and compared to the current literature.

RESULTS

Every excess weight loss % and total body weight loss % comparison at 6, 12, and 24 months, demonstrated a statistically significant superiority in weight loss after duodenal switch conversion (p < 0.05). The mean operative time of adjustable gastric band, sleeve gastrectomy, Roux-en-Y gastric bypass (1 and 2 stages) conversions to duodenal switch were 208, 146, 187, and 152 min, respectively, while the mean length of stay was 3.38 days. No statistically significant differences were perceived regarding the primary procedure. The overall complication rate was 18% (9 patients); 3 patients (6%) had 1 emergency department visit; readmissions accounted for 12% of cases (6 patients); the reoperation rate was 10% (5 patients); no fatal outcomes were recorded.

CONCLUSION

Duodenal switch conversions are an effective salvage procedure for insufficient weight loss and/or weight regain after adjustable gastric band, sleeve gastrectomy, and Roux-en-Y gastric bypass; it is also safe, associated to low readmission, reoperation, and mortality rates.

Ten year comparative analysis of sleeve gastrectomy, Roux-en-Y gastric bypass, and biliopancreatic diversion with duodenal switch in patients with BMI ≥ 50 kg/m2

INTRODUCTION

Bariatric surgery is the most effective modality to stably reduce weight and related comorbidities in patients suffering from class II and III obesity. Data comparing long-term safety and efficacy of the three most effective bariatric operations are limited in patients with BMI ≥ 50 kg/m², which complicate shared surgeon-patient decision making regarding optimal procedure selection.

METHODS

A retrospective analysis was performed on all patients with BMI ≥ 50 kg/m² who underwent biliopancreatic diversion with duodenal switch (BPD/DS), Roux-en-Y gastric bypass (RYGB), or sleeve gastrectomy (SG) at our institution between 2009 and 2019. Data collected from patients' electronic medical records included operative details as well as BMI and presence and resolution of obesity-related comorbidities at 0, 6, 12, 24, 48, and 60 months post-operatively.

RESULTS

Among 537 patients with BMI ≥ 50 kg/m² who had a primary bariatric procedure, 93 patients underwent BPD/DS (17.3%), 341 patients underwent RYGB (63.5%), and 103 patients underwent SG (19.2%). BMI decreased by 23.7 kg/m² in BPD/DS, 14.7 kg/m² in RYGB, and 13.6 kg/m² in SG cohorts at 60 months post-operatively (p < 0.0001). The greatest %TWL occurred in BPD/DS cohort (38.4%) followed by the RYGB (26.3%) and SG (23.6%) cohorts (p < 0.0001). The thirty-day complication rate was 12.9% for BPD/DS, 4.7% for RYGB, and 8.7% for SG (p = 0.015).

CONCLUSIONS

Our study demonstrated that the BPD/DS is the most effective operation at long-term reduction of BMI and achieved highest %TWL while SG and RYGB had similar results at 60 months post-op. BPD/DS is associated with increased early and late surgical complications compared to RYGB and SG.

Reluctance in duodenal switch adoption: an international survey among bariatric surgeons

BACKGROUND

Duodenal switch (DS) still comprises less than 1% of the overall primary procedures in the United States. Our aim is to explore the reasons behind surgeons' reluctance to DS adoption.

OBJECTIVES

To determine perceived reasons for the widespread lack of adoption of the DS.

SETTING

Worldwide survey of closed bariatric surgery social media groups.

METHODS

A standardized questionnaire was posted on 2 closed social media bariatric groups. DS was used as an umbrella term that includes traditional BPD with duodenal switch, single anastomosis duodeno-ileostomy (SADI) and loop DS. The questionnaire link was accessible to bariatric surgeons only for a period of 1 week.

RESULTS

Survey responses (n = 193) were analyzed. The majority (75%) were fellowship-trained bariatric surgeons, and 58% were practicing in the United States. Although 72.9% believed DS to be a good bariatric procedure, it was not being performed by 64% of the respondents. The main reasons behind DS nonadoption included a perceptible high long-term complication rate (43.5%), lack of training (38.1%), and procedure seldomly demanded by patients (31.5%). For surgeons who perform DS, 16.4% use it as a revisional procedure, mainly following sleeve gastrectomy (40.5%). Finally, 29.5% of surgeons believed that the American Society of Metabolic and Bariatric Surgery endorsement of SADI will encourage them to add DS to their practice. They are mostly planning to do so by visiting other surgeons and getting proctored (42.6%).

CONCLUSION

This survey will help guide bariatric societies and governing bodies in addressing the issues and concerns preventing surgeons from adopting DS in their practice by elucidating the chief reasons and circumstances behind this occurrence.