Mid-term Outcomes of Nissen Fundoplication Versus Roux-en-y Gastric Bypass for Primary Management of Gastroesophageal Reflux Disease in Patients With Obesity.

INTRODUCTION: The efficacy and outcomes of laparoscopic Nissen fundoplication (LNF) in patients with obesity is controversial. Specifically, concerns regarding long-term outcomes and recurrence in the setting of obesity has led to interest in laparoscopic Roux-en-Y gastric bypass (RYGB). METHODS: In this retrospective cohort study, we studied patients with obesity who underwent either LNF or RYGB for gastroesophageal reflux disease. Baseline demographics, clinical variables, operative outcomes, and symptom severity scores were compared. RESULTS: Baseline demographics, operative outcomes, and quality-of-life scores were similar. Proton pump inhibitor usage, quality-of-life, symptom severity scores, and satisfaction with the operation were similar between groups at mid-term follow-up. DISCUSSION: RYGB and LNF produced similar improvements in disease-specific quality of life with similar rates of complications, side effects, and need for reoperation. This demonstrates that RYGB and LNF represent possible options for surgical management of gastroesophageal reflux disease in obese patients.

Bariatric Patient Engagement in a Pre-surgery Virtual Patient Navigation Platform (VPNP).

BACKGROUND: This study analyzed patient engagement with a virtual patient navigation platform (VPNP) designed to help guide bariatric surgery candidates through the complex pre-operative workup for surgery. METHODS: Data on baseline sociodemographic and medical history was collected on patients enrolled in the bariatric program at a single academic institution between March and May 2021. The System Usability Scale (SUS) survey was administered to assess VPNP usability. Two groups emerged: "engaged" (ENG; n = 30) who activated their accounts and completed the SUS, and "not-engaged" (NEG; n = 35) who did not activate their accounts (n = 13) or did not use the app (n = 22) and were therefore ineligible for the SUS survey. RESULTS: Analyses demonstrated that only insurance status differed between groups (private insurance: 60% versus 34.3% for ENG versus NEG, respectively; p = 0.038). SUS survey analysis demonstrated high perceived usability (median score = 86.3), corresponding to the 97th percentile of usability. The top three reasons for disengagement included being too busy (22.9%), not being interested (20%), and being unsure about the purpose of the app (20%). CONCLUSIONS: The VPNP scored in the 97th percentile of usability. However, given a majority of patients did not engage with the app, and engagement was associated with completing pre-surgery requirements faster (unpublished), future work will focus on mitigating identified reasons for patients not engaging.

Weight Regain After Bariatric Surgery: Scope of the Problem, Causes, Prevention, and Treatment.

PURPOSE OF REVIEW: Although bariatric surgery is the most effective treatment of severe obesity, a proportion of patients experience clinically significant weight regain (WR) with further out from surgery. The purpose of this review is to summarize the prevalence, predictors, and causes of weight regain. RECENT FINDINGS: Estimating the prevalence of WR is limited by a lack of consensus on its definition. While anatomic failures such as dilated gastric fundus after sleeve gastrectomy and gastro-gastric fistula after Roux-en-Y gastric bypass can lead to WR, the most common causes appear to be dysregulated/maladaptive eating behaviors, lifestyle factors, and physiological compensatory mechanisms. To date, dietary, supportive, behavioral, and exercise interventions have not demonstrated a clinically meaningful impact on WR, and there is limited evidence for pharmacotherapy. Future studies should be aimed at better defining WR to begin to understand the etiologies. Additionally, there is a need for non-surgical interventions with demonstrated efficacy in rigorous randomized controlled trials for the prevention and reversal of WR after bariatric surgery.

Impact of post-discharge phone calls on non-urgent hospital returns < 90 days following primary bariatric surgery.

INTRODUCTION: Quality of care delivery may improve patient outcomes post-bariatric surgery. We examined the quality of post-discharge phone calls (PhDC) to determine the impact on early (< 90 day) non-urgent hospital returns (NUHR) following primary bariatric surgery. METHODS: A retrospective review was performed on patients who underwent Roux-en-Y-gastric bypass (RYGB) or sleeve gastrectomy (SG) in 2019. Patients were compared between presence of care coaching (Jan-June 2019) versus no care coaching (July-Dec 2019). Baseline demographics, comorbidities, psychiatric history, and PhDC were collected. Index PhDCs were coded for completeness using a scoring system and rated by call quality. Patients were stratified into NUHR versus control group (Never returns [NR]). Primary analysis examined the impact of PhDC on NUHR. Sub-analysis examined the impact of call quality. Univariate analysis was performed using Chi-square or Fisher's exact tests. Multivariate analysis (MVA) was used to determine predictors of NUHR. A p-value of ≤ 0.05 was statistically significant. RESULTS: A total of 359 patients were included. Compared to the NR group (n = 294), NUHRs (n = 65) were more likely to be younger (41.3 + 12.1 versus 45.0 + 10.8 years, p = 0.024), with baseline anxiety (41.5% versus 23.5%, p = 0.003), and undergo RYGB (73.3% versus 57.8%, p = 0.031). There was a significant difference in number of PhDC in the NUHR and NR groups (p = 0.0206). Care-coached patients had significantly higher rates of high-quality phone calls (p < 0.0001) compared to non-care-coached patients. MVA demonstrated younger age (OR = 0.97, CI: 0.95-1.00; p = 0.023), anxiety (OR = 2.09, CI: 1.17-3.73; p = 0.012), RYGB (OR = 1.88, CI: 1.02-3.45; p = 0.042), and > 50% call quality versus no PhDC (OR = 0.45, CI: 0.25-0.83; p = 0.010) were independently associated with NUHRs. CONCLUSION: High-quality PhDCs may play a role in mitigating NUHRs. Care coaching represents a potential intervention to decrease high rates of NUHR in primary bariatric surgery patients.

Epiregulin as an Alternative Ligand for Leptin Receptor Alleviates Glucose Intolerance without Change in Obesity.

The leptin receptor (LepR) acts as a signaling nexus for the regulation of glucose uptake and obesity, among other metabolic responses. The functional role of LepR under leptin-deficient conditions remains unclear. This study reports that epiregulin (EREG) governed glucose uptake in vitro and in vivo in Lepob mice by activating LepR under leptin-deficient conditions. Single and long-term treatment with EREG effectively rescued glucose intolerance in comparative insulin and EREG tolerance tests in Lepob mice. The immunoprecipitation study revealed binding between EREG and LepR in adipose tissue of Lepob mice. EREG/LepR regulated glucose uptake without changes in obesity in Lepob mice via mechanisms, including ERK activation and translocation of GLUT4 to the cell surface. EREG-dependent glucose uptake was abolished in Leprdb mice which supports a key role of LepR in this process. In contrast, inhibition of the canonical epidermal growth factor receptor (EGFR) pathway implicated in other EREG responses, increased glucose uptake. Our data provide a basis for understanding glycemic responses of EREG that are dependent on LepR unlike functions mediated by EGFR, including leptin secretion, thermogenesis, pain, growth, and other responses. The computational analysis identified a conserved amino acid sequence, supporting an evolutionary role of EREG as an alternative LepR ligand.

An analysis of readmission trends by urgency and race/ethnicity in the MBSAQIP registry, 2015-2018.

BACKGROUND: Large-scale analyses stratifying bariatric surgery readmissions by urgency are lacking. OBJECTIVES: Identify predictors of urgent/nonurgent readmission among "ideal" bariatric candidates, using a national registry. SETTING: Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) national database. METHODS: We extracted an "ideal" patient cohort from the 2015-2018 Metabolic and Bariatric Surgery Accreditation Quality Improvement Program (MBSAQIP) registry, characterized by only typical weight-related comorbidities (hypertension [HTN], obstructive sleep apnea [OSA], gastroesophageal reflux disease [GERD], and diabetes (insulin-dependent diabetes mellitus [IDDM] and non-insulin-dependent diabetes mellitus [NIDDM]) undergoing primary bariatric surgery with an uneventful postoperative course. Readmissions were classified as "urgent" (UR; e.g., leak, obstruction, bleeding) or "nonurgent" (NUR; e.g., dehydration, nonspecific abdominal pain). χ2 or t test analyses were used for bivariate significance testing. Multivariate logistic regression models were constructed to assess independent predictors of readmission. RESULTS: The cohort (N = 292,547) comprised 38.5% of all MBSAQIP patients (mean age [standard deviation] = 43.2 [11.7]; body mass index [BMI] = 44.9 [6.6]; 81% female; 62% White, 17% Black, 14% Hispanic). Total readmission rates were 2.75% (n = 8046) and decreased from 2015-2018 (3.00%-2.63%; P < .001). Independent predictors of readmissions included Roux-en-Y gastric bypass (RYGB) (odds ratio [OR] = 1.97, p < .001), Black (OR = 1.46, P < .001) and Hispanic race (OR = 1.14, P < .001), GERD (OR = 1.27, P < .001), HTN (OR = 1.08, P = .003), and IDDM (OR = 1.39, P < .001). NUR and UR readmission rates were 1.27% (n = 3702) and 1.06% (n = 3090), respectively. NURs decreased over time (1.42%-1.16%, P < .001), with no change in Urs (1.01%-1.06%, P = .51); this trend persisted in multivariate analysis (2017: NUR OR = .85, P < .001; 2018: NUR OR = .82, p < .001). Independent predictors of both URs and NURs included Black (NUR OR = 1.71, p < .001; UR OR = 1.27, p < .001) and Hispanic (NUR OR = 1.15, P < .001; UR OR = 1.19, P < .001) race, RYGB (NUR OR = 1.84, P < .001; UR OR = 2.34, P < .001), and GERD (NUR OR = 1.39, p < .001; UR OR = 1.17, P < .001). Female sex (NUR OR = 1.64, P < .001), age (NUR OR = .98, P < .001), HTN (NUR OR = 1.22, P < .001), and IDDM (NUR OR = 1.41, P < .001) predicted NURs, while higher BMI (UR OR = 1.01, P < .001), and OSA (UR OR = 1.10, P = .02) predicted URs. CONCLUSION: Readmission rates for "ideal" bariatric patients improved over time, driven by reductions in non-urgent etiologies. Racial disparities persist for both urgent and non-urgent causes of readmission.

Characterization of urgent versus nonurgent early readmissions (<30 days) following primary bariatric surgery: a single-institution experience.

BACKGROUND: Studies on early postoperative readmissions after bariatric surgery (BS) have examined readmissions as a single entity, regardless of urgency. Strategies to lower nonurgent readmissions would reduce unnecessary hospital utilization. OBJECTIVES: To identify predictors of urgent readmissions (UR) versus nonurgent readmissions (NUR) at 30 days post-BS. SETTING: Single academic institution. METHODS: Patients undergoing primary BS over 2 years (n = 589) were retrospectively reviewed. Baseline demographic, medical, and hospitalization data were compared between readmitted patients, stratified by urgency, and nonreadmitted patients. Multivariate regression models of UR and NUR were created using variables with a P value ≤ .2 on univariate analyses. A P value ≤ .05 was considered statistically significant. RESULTS: There were 39 documented instances of 30-day readmissions, of which 44% (n = 17) were NUR; NUR patients were more likely to be female (100% versus 78.2% male; P = .03) and trended toward being younger, experiencing ≥2 perioperative complications, and having a longer index hospital length of stay (LOS). Patients with URs had a higher baseline BMI (52.5 ± 11.4 kg/m2 versus 48.7 ± 8.3 kg/m2, respectively; P = .04), were more likely to have sleep apnea (77.3% versus 56.1%, respectively; P = .05), had a longer LOS (3 versus 2 d, respectively; P = .007), and were more likely to have ≥2 postoperative complications (46% versus 17.0%, respectively; P = .003) compared with those with an NUR. Independent predictors of NUR included public insurance (odds ratio [OR] = 3.7; 95% confidence interval [CI], 1.17-11.67; P = .03), younger age (OR = 1.05; 95% CI, 1-1.01; P = .04), and female sex, while URs were independently predicted by LOS (OR = 1.3; 95% CI, 1.04-1.5; P = .02). CONCLUSIONS: Public insurance appears to be associated with NURs, while LOS predicts URs after BS. This suggests an important dichotomy within readmissions based on urgency, which has important implications for targeted quality initiatives.

Use of the MMPI-2 personality profile in predicting 30-day ED-visits and readmissions following primary bariatric surgery.

BACKGROUND: Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is used for psychological screening of bariatric surgery (BS) candidates. To date, no studies have analyzed the relationship between MMPI-2 and early returns to hospital. The aim of this study was to determine whether high T scores on the MMPI-2 clinical scales were associated with early return to hospital after primary bariatric surgery. METHODS: Patients who completed an MMPI-2 evaluation, undergoing primary BS from 2014 to 2016 were evaluated. T score for the tested scales were collected and stratified into a high T score (T > 65) vs not (T < 65). The optimal 'cut-point' (specific number of high T scores predicting likelihood for 30-day ED-visit/hospital readmission) was calculated using Youden's Index (J) = Max(c) [sensitivity (c) + specificity (c) - 1], where c = number of scales with a T score > 65. Patients were stratified based on the optimal cut-point which was determined to be ≥ 4 high T scores. Univariate and multivariate logistic regression analyses were used to identify differences between groups and predictors for early ED-visits and hospital readmissions. RESULTS: 375 patients had psychological evaluations available for review. Patients were divided into those with ≥ 4 high T scores (Scr(≥4); n = 86) versus not (Scr (<4); n = 289). Multivariate analysis showed Scr(≥ 4) (aOR 2.99, CI 1.20-7.47; p = 0.019), bipolar disorder (aOR 4.82, CI 1.25-18.83; p = 0.022), and urgent hospital complications (aOR 6.81, CI 2.02-22.91; p = 0.002), were significant independent predictors of 30-day readmissions. Early ED-visits were significantly predicted by public insurance (aOR 3.30, CI 1.22-8.91; p = 0.019), but the effect of the Scr(≥4) profile (aOR 2.42, CI 0.97-6.09; p = 0.06), while influential, did not reach significance. CONCLUSION: Differences in personality traits may be associated increased 30-day readmissions following primary bariatric surgery. Our study represents a novel application of the MMPI-2.

Bariatric surgery after failed conservative management in a morbidly obese patient with endometrial cancer.

•Extreme obesity may preclude patients from primary surgical management of endometrial cancer.•Bariatric surgery is a safe and effective method of rapid weight loss in patients with extreme obesity.•Delayed hysterectomy, after weight loss from bariatric surgery, is an option in select patients with endometrial cancer.

Endoscopic stent placement for treatment of sleeve gastrectomy leak: a single institution experience with fully covered stents.

BACKGROUND: Laparoscopic sleeve gastrectomy (SG) has risen in prevalence as a standalone surgical option for treating obesity over the last 15 years. One of the most worrisome complications is development of a leak at the gastrectomy staple line. OBJECTIVE: The objective of this report is to describe our single-institution experience in managing SG staple-line leaks with fully covered endoscopic stents. SETTING: Academic medical center, United States. METHODS: Data for all patients who underwent endoscopic stent placement for an SG leak between 2010 and 2016 at a single academic institution were retrospectively reviewed. Patient medical history, perioperative information, stent placement details, outcomes, and subsequent interventions were recorded. RESULTS: Twenty-four patients with SG staple-line leaks treated with fully covered endoscopic stents were identified. Leaks were identified at a median of 31.5 days postoperatively (range, 1-1615 d). The majority of patients underwent other treatment(s) for their leak before stent placement at our institution. Stents remained in place for an average of 28.8 ± 16.8 days. Migration occurred in 22% of all stent placements. Three patients were lost to follow-up, and 14 of the remaining 21 patients (66.7%) healed after stent placement. Five patients (23.8%) ultimately required operative revision with partial gastrectomy and Roux-en-Y esophagojejunostomy for management of persistent leaks. CONCLUSION: Endoscopic management using fully covered stents for staple-line leaks after SG is effective in the majority of patients. However, algorithms are needed for the management of chronic staple-line leaks, which are less likely to heal with stent placement.

Pharmacotherapy in Conjunction with a Diet and Exercise Program for the Treatment of Weight Recidivism or Weight Loss Plateau Post-bariatric Surgery: a Retrospective Review.

BACKGROUND: Bariatric surgery is an effective therapeutic option for management of obesity. However, weight recidivism (WR) and weight loss plateau (WLP) are common problems. We present our experience with the use of two pharmacotherapies in conjunction with our standard diet and exercise program in those patients who experienced WR or WLP. METHODS: From June 2010 to April 2014, bariatric surgery patients who experienced WR or WLP after undergoing Roux-en-Y gastric bypass (RYGB) or laparoscopic adjustable gastric banding (LAGB), and who were treated with phentermine (Ph) or phentermine-topiramate (PhT), were reviewed retrospectively. Generalized estimating equations were used to compare patient weights through 90 days between initial surgery type and medication type. Patient weights, medication side effect, and co-morbidities were collected during the first 90 days of therapy. RESULTS: Fifty-two patients received Ph while 13 patients received PhT. Overall, patients in both groups lost weight. Among those whose weights were recorded at 90 days, patients on Ph lost 6.35 kg (12.8% excess weight loss (EWL); 95% confidence interval (CI) 4.25, 8.44) and those prescribed PhT lost 3.81 kg (12.9% EWL; CI 1.08, 6.54). Adjusting for baseline weight, time since surgery, and visit through 90 days, patients treated with Ph weighed significantly less than those on PhT throughout the course of this study (1.35 kg lighter; 95% CI 0.17, 2.53; p = 0.025). There were no serious side effects reported. CONCLUSIONS: Phentermine and phentermine-topirimate in addition to diet and exercise appear to be viable options for weight loss in post-RYGB and LAGB patients who experience WR or WLP.

Laparoscopy in trauma: An overview of complications and related topics.

The introduction of laparoscopy has provided trauma surgeons with a valuable diagnostic and, at times, therapeutic option. The minimally invasive nature of laparoscopic surgery, combined with potentially quicker postoperative recovery, simplified wound care, as well as a growing number of viable intraoperative therapeutic modalities, presents an attractive alternative for many traumatologists when managing hemodynamically stable patients with selected penetrating and blunt traumatic abdominal injuries. At the same time, laparoscopy has its own unique complication profile. This article provides an overview of potential complications associated with diagnostic and therapeutic laparoscopy in trauma, focusing on practical aspects of identification and management of laparoscopy-related adverse events.

Laparoscopic adjustable gastric banded plication: case-matched study from a single U.S. center.

BACKGROUND: Laparoscopic adjustable gastric banded plication (LAGBP) is a novel technique for weight loss surgery. This study evaluates the safety and short-term efficacy of LAGBP in a U.S. population. The setting was an academic medical center in the United States. METHODS: Patients who underwent LAGBP between 2012 and 2013 were reviewed retrospectively. Demographic characteristics, pre and perioperative details, body mass index (BMI), and percent excess weight loss (%EWL) were analyzed and compared to case-matched cohorts that had laparoscopic adjustable gastric banding (LAGB) or laparoscopic sleeve gastrectomy (LSG) during the same time period. RESULTS: Seventeen patients (14 females) underwent LAGBP during the study period and were case-matched based on age, sex, race, and preoperative BMI with patients having LAGB and LSG. Mean age and preoperative BMI for LAGBP cohort were 42.5±11.6 years and 47.7±6.5 kg/m2, respectively. Mean operative time and estimated blood loss were 72±16 minutes and 23±23 mL, respectively, compared to 49±16 minutes (P=.002) and 15±23 mL for LAGB, and 66±18 minutes and 36±22 mL for LSG. There were no perioperative deaths. Hospital length of stay was 1.1±.3 days for LAGBP, versus .7±.3 days (P=.004) for LAGB, and 2.7±1.4 days (P<.001) for LSG. At 12-month follow-up, patients in the LAGBP and LAGB groups had undergone similar number of band adjustments (4.7 versus 5.1; P=.68). The %EWL was 46.1±14.8% for the LAGBP cohort, compared to 38.9±20.6% for LAGB, and 57.7±16% for LSG. CONCLUSION: LAGBP is technically feasible and safe, and offers weight loss results positioned between LAGB and LSG at 1 year. To date, this is the largest U.S. series to compare this novel technique to more traditional weight loss procedures.

Near-infrared fluorescent cholangiography facilitates identification of biliary anatomy during laparoscopic cholecystectomy.

BACKGROUND: Intraoperative cholangiography (IOC) is the current gold standard for biliary imaging during laparoscopic cholecystectomy (LC). However, utilization of IOC remains low. Near-infrared fluorescence cholangiography (NIRF-C) is a novel, noninvasive method for real-time, intraoperative biliary mapping. Our aims were to assess the safety and efficacy of NIRF-C for identification of biliary anatomy during LC. METHODS: Patients were administered indocyanine green (ICG) prior to surgery. NIRF-C was used to identify extrahepatic biliary structures before and after partial and complete dissection of Calot's triangle. Routine IOC was performed in each case. Identification of biliary structures using NIRF-C and IOC, and time required to complete each procedure were collected. RESULTS: Eighty-two patients underwent elective LC with NIRF-C and IOC. Mean age and body mass index (BMI) were 42.6 ± 13.7 years and 31.5 ± 8.2 kg/m(2), respectively. ICG was administered 73.8 ± 26.4 min prior to incision. NIRF-C was significantly faster than IOC (1.9 ± 1.7 vs. 11.8 ± 5.3 min, p < 0.001). IOC was unobtainable in 20 (24.4 %) patients while NIRF-C did not visualize biliary structures in 4 (4.9 %) patients. After complete dissection, the rates of visualization of the cystic duct, common bile duct, and common hepatic duct using NIRF-C were 95.1, 76.8, and 69.5 %, respectively, compared to 72.0, 75.6, and 74.3 % for IOC. In 20 patients where IOC could not be obtained, NIRF-C successfully identified biliary structures in 80 % of the cases. Higher BMI was not a deterrent to visualization of anatomy with NIRF-C. No adverse events were observed with NIRF-C. CONCLUSIONS: NIRF-C is a safe and effective alternative to IOC for imaging extrahepatic biliary structures during LC. This technique should be evaluated further under a variety of acute and chronic gallbladder inflammatory conditions to determine its usefulness in biliary ductal identification.

Biological effects of bariatric surgery on obesity-related comorbidities.

The prevalence of obesity has increased so rapidly over the last few decades that it is now considered a global epidemic. Obesity, defined as a body mass index (BMI) of 30 or more, is associated with several comorbid conditions that decrease life expectancy and increase health care costs. Diet therapies have been reported to be ineffective in the long-term treatment of obesity, and guidelines for the surgical therapy of morbid obesity (BMI ≥ 40 or BMI ≥ 35 in the presence of substantial comorbidities) have since been established. Considering the number of bariatric surgical procedures has dramatically increased since these guidelines were established, we review the types of bariatric surgical procedures and their impact on diabetes, sleep apnea, dyslipidemia and hypertension - 4 major obesity-related comorbidities.