Propensity Score-Matching Sleeve Gastrectomy (SG) vs. Gastric Bypass (RYGB) in Patients ≥ 60 Years

Laparoscopic Sleeve Gastrectomy in Patients Over 60 Years Old: A Long-Term Follow-Up

Purpose: This study analyzed the safety and effectiveness of laparoscopic sleeve gastrectomy (LSG) in patients over 60 years old, in a long-term follow-up, in a high-volume bariatric center. Methods: We retrospectively analyzed all patients older than 60 years who underwent LSG in our center from January 2009 to December 2018. A prospectively collected database of 4991 consecutive LSG cases was reviewed. Results: One hundred seventy-nine sleeve gastrectomy procedures were performed in patients older than 60 years, 135 were aged 60-65 years (group A) and 44 were older than 65 years (group B). We reported five cases (2.7%) of early complications: three postoperative hemorrhages, one cardial leakage, and one perigastric abscess. No thromboembolic events or mortality rates were reported. The mean follow-up period was 5.5 years (66 months). The follow-up loss rate was about 29%. At last follow-up, the mean body-mass index/body mass/percentage of excess weight loss values were, respectively, 33.7 ± 7/86.1 ± 21/60.4 ± 28.6 in group A and 32.4 ± 6.4/82.6 ± 18/61.8 ± 33 in group B. We reported 5 (4.0%) trocar site hernias, 1 (0.8%) cardial junction stenosis, and 22 (18%) new outbreaks of gastroesophageal reflux (GERD). There were 7 reinterventions (5.7%): 5 for weight regain and 2 for GERD not responding to medical therapy. There were no statistically significant differences between the two age groups. Conclusions: LSG is a safe and effective treatment for severe obesity in people over 60 years old. There are no differences in results of patients over 65 years and between 60 and 65 years old. Scales that include associated medical problems and the patient's general condition must be considered.

Association of body composition with postoperative complications after laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass

OBJECTIVE

To evaluate predictive values of body composition parameters measured from preoperative CT/MRIs for postoperative complications after laparoscopic sleeve gastrectomy (LSG) and Roux-en-Y gastric bypass (LRYGB) in patients with obesity.

METHODS

In this retrospective case-control study, patients performing abdominal CT/MRIs within one month before and developing 30-day complications after bariatric procedures were matched for age, sex, and type of surgery with patients without complications (1/3 ratio, respectively). Complications were determined by documentation in the medical record. Two readers blindly segmented the total abdominal muscle area (TAMA) and visceral fat area (VFA) using predetermined thresholds for the Hounsfield unit (HU) on unenhanced CT and the signal intensity (SI) on T1-weighted MRI at the L3 vertebral level. Visceral obesity (VO) was defined as VFA > 136 cm² in males and > 95 cm² in females. These measures, along with perioperative variables, were compared. Multivariate logistic regression analyses were performed.

RESULTS

Of 145 included patients, 36 had postoperative complications. No significant differences between LSG and LRYGB were present regarding complications and VO. Hypertension (p = 0.022), impaired lung function (p = 0.018), American Society of Anesthesiologists (ASA) grade (p = 0.046), VO (p = 0.021), and VFA/TAMA ratio (p < 0.0001) were associated with postoperative complications in the univariate logistic analysis; the VFA/TAMA ratio was the only independent predictor in multivariate analyses (OR 2.01, 95% CI 1.37-2.93, p < 0.001).

CONCLUSION

The VFA/TAMA ratio provides important perioperative information in predicting patients who are likely to develop postoperative complications undergoing bariatric surgery.

Obesity surgery: Which procedure should we choose and why?

In the 70years that bariatric surgery has existed, many different surgical procedures have been developed. Four procedures are officially accepted by all learned societies: adjustable gastric banding (AGB), sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB) and bilio-pancreatic diversion (BPD). Gastric banding has the lowest short-term surgical risk, but it has the highest re-operation rate. Compared to SG, RYGB presents about twice the risk of early complications. Late complications seem equivalent between the two procedures but studies with follow-up>10years are rarer for SG. SG has become the most commonly performed bariatric procedure worldwide, followed by RYGB, which is still the standard. BPD remains very marginal but the omega gastric bypass, an alternative technique that is still under evaluation, now competes with RYGB. The effectiveness of these different procedures on weight loss remains difficult to compare. SG and RYGB seem to be equivalent for weight loss results and remission of type-2 diabetes (T2DM). Their results are superior to AGB. Procedures that result in greater lengths of intestinal bypass (bilio-pancreatic diversion, omega bypass) seem to have a greater weight-loss effect but are burdened by more side effects. In conclusion, the choice of a procedure is conditioned firstly by the benefit-risk ratio and in relation to patient-related parameters, particularly the body mass index (BMI) and co-morbidities. Long-term results are also linked to factors other than surgery and in particular patient behavioral factors. Obesity is a chronic disease that indicates the need for real long-term medical and surgical management.

Incidence and risk factors for cholelithiasis after bariatric surgery: a systematic review and meta-analysis

BACKGROUND

Obesity has been identified as an independent risk factor for cholelithiasis. As a treatment for obesity, bariatric surgery may increase the incidence of cholelithiasis. The risk factors for cholelithiasis after bariatric surgery remain uncertain. The purpose of this study was to explore the risk factors for postoperative cholelithiasis after weight-loss surgery and propose suggestions for clinical decision making.

METHODS

Four databases, PubMed, EMBASE, Web of Science and Cochrane, were systematically searched for all reports about cholelithiasis after bariatric surgery, and literature screening was performed following prespecified inclusion criteria. The included studies were all evaluated for quality according to the NOS scale. Data extraction was followed by analysis using Reviewer Manager 5.4 and StataSE 15.

RESULTS

A total of 19 articles were included in this meta-analysis, and all studies were of high quality. A total of 20,553 patients were included in this study. Sex [OR = 0.62, 95% CI (0.55, 0.71), P < 0.00001] and race [OR = 1.62, 95% CI (1.19, 2.19), P = 0.002] were risk factors for cholelithiasis after bariatric surgery. Surgical procedure, preoperative BMI, weight-loss ratio, smoking, hypertension, diabetes mellitus, and dyslipidemia were neither protective nor risk factors for cholelithiasis after bariatric surgery.

CONCLUSION

Caucasian race and female sex are risk factors for developing cholelithiasis after bariatric surgery; surgical procedure, BMI, weight loss ratio, hypertension, diabetes mellitus, dyslipidemia, and smoking are not risk factors for cholelithiasis after bariatric surgery.

Safety and efficacy of roux-en-y gastric bypass in older aged patients

INTRODUCTION

laparoscopic Roux-en-Y Gastric Bypass (LRYGB) has been a revolutionary intervention for weight loss with reduction of up to 60-70% of excess body weight. However, these outcomes are not as well validated at the extremes of age, where the safety of the intervention still has some caveats. The aim of this study is to assess the efficacy and safety of primary LRYGB among different age groups.

METHODS

the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database was queried for patients who underwent primary LRYGB from January 2014 to December 2017 at a single institution. Four groups were created and compared by dividing our sample by age quartiles. The primary outcome was percent excess weight loss (%EWL) at 1 year. Additional operative outcomes and complications were also compared across groups.

RESULTS

a total of 1013 patients underwent non-revisional LRYGB during the study period. Mean %EWL at one year was 55%. When compared between quartiles, there was a statistically significant difference in %EWL: 1st 62%, 2nd 57%, 3rd 54% and 4th 47% (p=0.010). The differences in the secondary outcomes between age groups did not demonstrate statistical significance.

CONCLUSIONS

though patients in the fourth age quartile (range) did not demonstrate a statistically significant increase in adverse outcomes, they did lose less weight compared to other cohorts. The %EWL at one year after RYGB varied by age in our cohort. Goals after bariatric surgery should be individualized as weight loss is less robust with aging.

Endoscopic Self-Expanding Metallic Stent Placement in the Management of Post Laparoscopic Sleeve Gastrectomy Complications

Introduction Endoscopic treatments have become popular by providing the best solution for healing complications while allowing oral nutrition. In this study, we aim to evaluate outcomes of the endoscopic-covered stents for staple line complications following bariatric surgery.

Methods A prospective evaluation was performed for all patients treated for staple line complications after bariatric surgery. Bariatric patients with acute leaks, chronic gastrocutaneous fistulas, and anastomotic strictures refractory to endoscopic dilation after sleeve gastrectomy were included in this survey.

Results From January 2019 to June 2020, 41 patients (12 with acute leaks, 16 with chronic fistulas, and 13 with strictures) were treated with endoscopic silicone-covered stents (polyester or nitinol). The mean follow-up was 3.5 months. Immediate symptomatic improvement occurred in 95.2% (91.7% of acute leaks, 81.2% of fistulas, and 92.3% of strictures). In addition, 87.8% of patients initiated oral feeding immediately after stenting. There was no mortality case in this population.

Conclusion Although stent migration rarely occurs in subjects, the endoscopic silicone-covered stents strategy is one of the best treatments for anastomotic complications after bariatric surgery, providing rapid healing while simultaneously allowing for oral nutrition.

Segurança e eficácia do bypas gástrico em Y de Roux em pacientes idosos

RESUMO Introdução: o Bypass Gástrico Laparoscópico em Y de Roux (LRYGB) tem sido uma intervenção revolucionária para perda de peso com redução de até 60-70% do excesso de peso corporal. No entanto, esses resultados não são tão bem validados nos extremos de idade, onde a segurança da intervenção ainda possui algumas ressalvas. O objetivo deste estudo é avaliar a eficácia e segurança do LRYGB entre diferentes faixas etárias. Métodos: O banco de dados do Programa de Acreditação e Melhoria da Qualidade da Cirurgia Metabólica e Bariátrica (MBSAQIP) foi consultado para pacientes submetidos a LRYGB de janeiro de 2014 a dezembro de 2017 em uma única instituição. Quatro grupos foram criados e comparados dividindo a amostra por quartis de idade. O desfecho primário foi perda percentual de excesso de peso (%EWL) em 1 ano. Resultados: 1013 pacientes foram submetidos a LRYGB durante o período do estudo. A média de %EWL em um ano foi de 55%. Quando comparados entre os quartis, houve diferença significante no %EWL: 1º 62%, 2º 57%, 3º 54%, e 4º 47% (p=0,010). As diferenças nos desfechos secundários entre as faixas etárias não demonstraram significância estatística. Conclusões: embora os pacientes no quarto quartil de idade não tenham demonstrado um aumento estatisticamente significativo nos resultados adversos, eles perderam menos peso em comparação com outras coortes. O %EWL um ano após RYGB variou de acordo com a idade em nossa coorte. Os objetivos após a cirurgia bariátrica devem ser individualizados, pois a perda de peso é menos robusta com o envelhecimento.

Propensity Score Matching Sleeve Gastrectomy vs. Gastric Bypass with 5 Years of Follow-Up

PURPOSE

Beginning January 1, 2005, bariatric surgery cases were examined with the help of the quality assurance study for operative medicine. All data were registered and analyzed prospectively in cooperation with the Institute of Quality Assurance in Surgery at the Otto-von-Guericke University Magdeburg, Germany. The comparative study focuses on perioperative morbidity, complications, and remission of obesity-associated diseases after gastric bypass (RYGB) and sleeve gastrectomy (SG) at 5-year follow-up.

MATERIALS AND METHODS

Data collection includes patients of full age who underwent SG or RYGB surgery between 2005 and 2017. The bougie is limited to 33-40 French for SG. The Roux-en-Y length for RYGB is set to 120-180 cm, and the biliodigestive length is set to 40-60 cm. Outcome criteria are perioperative morbidity, postoperative and intraoperative complications, and remission on comorbidities.

RESULTS

Between 2005 and 2017, 64,349 patients were enrolled in German Bariatric Surgery Registry (GBSR). Primary operations that were performed were 56.328. Out of 24,146 RYGB and 24,085 SG procedures, 922 patients had a complete 5-year follow-up. These are 342 SG patients and 580 patients with RYGB. A matching was realized for n = 285 (83.3%) patient pairs based on age, BMI, gender, ASA, and comorbidities. A significant disadvantage was identified for the SG procedure regarding reflux disease compared with RYGB (36.3% vs. 8.10%; p < 0.001). There were no significant disadvantages in terms of BMI reduction [14.92 in the RYGB and 14.50 in the SG (p = 0.437)] and %EWL [60.32 in the RYGB and 58.98 in the SG (p = 0.504)]. This also applies to the remission of NIDDM, IDDM, hypertension, and sleep apnea; no significant differences were found.

CONCLUSION

The results of the study show significant findings for gastroesophageal reflux. In terms of complications and obesity-associated diseases, no significant disadvantages between both treatments were found. RYGB and SG had comparable postoperative morbidity rates. The two surgical methods are legitimate bariatric procedures. However, there is a need for further evaluation to optimize patient selection in the coming years.