Who will fail laparoscopic Nissen fundoplication? Preoperative prediction of long-term outcomes

Robotic surgery for giant paraesophageal hernias: a promising approach to improved outcomes

Giant paraesophageal hernias (GPEH) present challenges in management and surgical technique. Laparoscopic repair has been the gold standard for GPEH repair. Despite technical advances in laparoscopy, complications and recurrence remain high. The da Vinci Surgical System has emerged as a way to improve upon the gold standard. The objective of this study is to evaluate clinical outcomes of patients who underwent robotic GPEH repair in comparison to the clinical data in the literature on laparoscopic GPEH repair. We retrospectively reviewed patient records who underwent GPEH repair between November 2012 and February 2023 at a single high-volume tertiary care center. Perioperative data and patient outcomes were collected from a prospectively maintained database. Ninety-two patients underwent robotic GPEH repair. Sixty-seven had Type III hernias (72.8%) and twenty-five had Type IV hernias (27.2%). Four (4.3%) required conversion to open repair and two (2.2%) required reoperation for recurrence. Twelve (13.0%) experienced complications including one surgical complication (splenic laceration) and eleven medical complications (fever, ileus, pleural effusion, and heart failure exacerbation). There was no perioperative mortality. Mean operative time was 166.4 ± 29.5 min, and hospital stay was 5.8 ± 3.1 days. Obesity (BMI > 30) was associated with higher complication and recurrence rates. Robotic GPEH repair demonstrates promising outcomes, with lower recurrence rates and fewer postoperative complications compared to published data on laparoscopic repair. While a randomized control trial is needed to substantiate these results, our data support that a robotic approach could become the standard of care for GPEH repair.

Antireflux surgery - choosing the right candidate

INTRODUCTION

Surgical gastric fundoplication is an effective treatment option for gastroesophageal reflux disease. In contrast to acid suppression, fundoplication nearly abolishes all types of reflux, acid and nonacid. However, in some cases, lasting side effects of the procedure may overshadow its positive effects. It has remained difficult to determine which patients are the most suitable candidates for fundoplication.

AREAS COVERED

This review aims to evaluate the available data on preoperative factors that are associated with the outcome of fundoplication and to determine which combination of patient characteristics and preoperative test results provides optimal selection. In addition, we assess the need for tailoring the procedure on the basis of the preoperative quality of esophageal peristalsis.

EXPERT OPINION

Surgical treatment of gastroesophageal reflux disease is underutilized as it may provide an excellent option for a subset of GERD patients. It is not sensible to restrict surgical treatment to patients who do not respond to acid suppression. However, meticulous patient selection is key. Most importantly, surgical treatment should not be considered in patients in whom there is no convincing evidence that the symptoms are caused by reflux. Impaired esophageal peristalsis should not be regarded as a contraindication against fundoplication.

Simultaneous treatment of large hiatal hernias during Roux-en-Y gastric bypass: technical considerations and outcome

Roux-en-Y gastric bypass (RYGB) is the preferred surgical option for patients with proven gastroesophageal reflux disease and obesity grade ≥ II (BMI ≥ 35 kg/m2). Data on simultaneous treatment of larger hiatal hernias during RYGB are scarce. From 2012 until 2022, data from all consecutive patients undergoing gastric bypass procedures were collected and retrospectively analyzed. The characteristics and surgical outcomes of patients undergoing RYGB alone (RYGBa) versus RYGB with simultaneous treatment of a large hiatal hernia (RYGB-HH) were compared. Out of 573 patients who received RYGB, we identified 12 simultaneously treated for large hiatal hernia. The characteristics of RYGB-HH versus RYGBa patients were higher age (55 vs. 44 years; p = 0.004) and lower BMI (39.2 vs. 46.9 kg/m2; p = 0.001). Duration of surgery in the RYGB-HH group was longer (144 min vs. 98 min; p < 0.001), while complications > Clavien-Dindo II were similar compared to the RYGBa group (8.3 vs. 9.4%, p = 0.56). Length of stay did not differ among the groups (4 vs. 5.5 days, p = 0.051). At a median follow-up of 12 months, there was no clinical recurrence of hiatal hernia in the RYGB-HH group. Simultaneous treatment of large hiatal hernias during Roux-en-Y gastric bypass surgery prolongs operation time but seems feasible and safe in the hands of experienced surgeons.

Gastroesophageal reflux disease: indications for antireflux surgery, outcomes, and side effects

INTRODUCTION

Gastroesophageal reflux disease (GERD) is a frequent digestive disorder that presents with a broad spectrum of symptoms. Global consensus on which patients should be selected for anti-reflux surgery is lacking.

AREAS COVERED

This evidence-based review will analyze current indications for anti-reflux surgery, outcomes of the operation, and potential side effects.

EXPERT COMMENTARY

Treatment of GERD has three main purposes: control symptoms, improve quality of life, and prevent potential serious complications such as bleeding, esophageal stenosis, Barrett's esophagus, and esophageal adenocarcinoma. Although medical therapy is effective in the majority of patients, some might require anti-reflux surgery in order to achieve these goals. Adequate patient selection for anti-reflux surgery is critical to obtain optimal outcomes. Most patients undergoing a fundoplication have adequate long-term symptomatic relief. However, potential side effects of anti-reflux surgery should also be discussed with patients to help manage expectations from the operation.

Assessing the effect of body mass index on perioperative outcomes and short-term recurrence after paraesophageal hernia repair

Previous assessments suggest that surgical results of paraesophageal hernia (PEH) repair were negatively impacted by increasing levels of obesity. A better understanding of the association of obesity on outcomes of PEH repair will support surgeons making evidence-based decisions on the surgical candidacy of individual patients. This single institution retrospective cohort study included 884 consecutive patients with giant PEH undergoing surgical repair between 1 January 2000 and 30 June 2020. Preoperative body mass index (BMI) was documented at the time of surgery. Main outcomes included perioperative blood loss, length of hospital stay, major complications, early hernia recurrence, and mortality. The mean (standard deviation [SD]) age at surgery was 68.4 (11.1), and 645 (73.0%) were women. Among the 884 patients, 875 had a documented immediate preoperative BMI and were included in the analysis. Mean (SD) BMI was 29.24 (4.91) kg/m2. Increasing BMI was not associated with increased perioperative blood loss (coefficient, 0.01; 95% confidence interval [CI], -0.01 to 0.02), prolonged length of stay (coefficient, -0.01; 95% CI, -0.02 to 0.01), increased incidence of recurrent hernia (odds ratio [OR], 1.03; 95% CI, 0.95-1.10), or increased major complications (OR, 0.93; 95% CI, 0.82-1.05). The 90-day mortality rate was 0.3%. Furthermore, when compared with the normal weight group, overweight and all levels of obesity were not related to unfavorable outcomes. No association was found between BMI and perioperative outcomes or short-term recurrence in patients undergoing PEH repair. Although preoperative weight loss is advisable, a higher BMI should not preclude or delay surgical management of giant PEH.

Patients Engaged in Losing Weight Preoperatively Experience Improved Outcomes After Hiatal Hernia Repair

BACKGROUND

Adherence to preoperative weight loss recommendations may serve as a surrogate for the level of engagement in hiatal hernia (HH) patients. This study aims to evaluate the relationship between achieving preoperative weight loss goals and outcomes after HH repair.

METHODS

A retrospective review of 235 patients undergoing laparoscopic HH repair at a single institution was performed. Patients were grouped based on the percentage of weight loss goal achieved. Low achievement was defined as the bottom quartile of goal achievement (≤75%); high achievement was defined as the top quartile (≥140%). Baseline characteristics, clinical outcomes, and patient reported outcomes (PROMs) were compared between groups.

RESULTS

131/235 (55.7%) achieved their weight loss goal. No differences in baseline characteristics or clinical outcomes were observed between the low and high achievement groups. While both groups experienced improvements in PROMs postoperatively, patients in the high achievement group demonstrated significantly lower symptom burden at one-month postoperatively. Further, high-achievement patients were more likely to experience complete resolution of common HH symptoms at one-month postoperatively, including no difficulty swallowing food, no breathing difficulties or choking episodes, no choking when eating food, no choking when drinking liquid, and no regurgitation of food or liquid.

CONCLUSIONS

In patients undergoing laparoscopic HH repair, patients achieving their preoperative weight loss goals experienced less overall symptom burden and lower prevalence of common symptoms one-month postoperatively than those with low levels of goal achievement. These results demonstrate that patients can take an active role in improving their own surgical outcomes and health status.

Current Status of Anti-Reflux Surgery as a Treatment for GERD

Anti-reflux surgery (ARS) is an efficient treatment option for gastroesophageal reflux disease (GERD). Despite growing evidence of the efficacy and safety of ARS, medications including proton pump inhibitors (PPIs) remain the most commonly administered treatments for GERD. Meanwhile, ARS can be an effective treatment option for patients who need medications continuously or for those who are refractory to PPI treatment, if proper candidates are selected. However, in practice, ARS is often regarded as a last resort for patients who are unresponsive to PPIs. Accumulating ARS-related studies indicate that surgery is equivalent to or better than medical treatment for controlling typical and atypical GERD symptoms. Furthermore, because of overall reduced medication expenses, ARS may be more cost-effective than PPI. Patients are selected for ARS based on endoscopic findings, esophageal acid exposure time, and PPI responsiveness. Although there is limited evidence, ARS may be expanded to include patients with normal acid exposure, such as those with reflux hypersensitivity. Additionally, other factors such as age, body mass index, and comorbidities are known to affect ARS outcomes; and such factors should be considered. Nissen fundoplication or partial fundoplication including Dor fundoplication and Toupet fundoplication can be chosen, depending on whether the patient prioritizes symptom improvement or minimizing postoperative symptoms such as dysphagia. Furthermore, efforts to reduce and manage postoperative complications and create awareness of the long-term efficacy and safety of the ARS are recommended, as well as adequate training programs for new surgeons.

Roux-en-Y gastric bypass versus fundoplication for gastroesophageal reflux disease in patients with obesity results in comparable outcomes

BACKGROUND

Roux-en-Y gastric bypass and fundoplication are effective treatments for gastroesophageal reflux disease, though the optimal procedure of choice in obesity is unknown. We hypothesize that Roux-en-Y gastric bypass is non-inferior to fundoplication for symptomatic control of gastroesophageal reflux disease in patients with obesity.

METHODS

We conducted a retrospective review of a prospectively maintained quality database. Patients with a body mass index ≥of 35 who presented for gastroesophageal reflux disease and subsequently underwent Roux-en-Y gastric bypass or fundoplication were included. Perioperative outcomes and pH testing data were reviewed. Patient-reported outcomes included Reflux Symptom Index, Dysphagia, Gastroesophageal Reflux Disease-Health Related Quality of Life, and Short Form-36 scores. Data were analyzed using the Wilcoxon rank sum test.

RESULTS

Ninety-five patients underwent fundoplication (n = 72, 75.8%) or Roux-en-Y gastric bypass (n = 23, 24.2%) during the study period. All patients saw an improvement in gastroesophageal reflux disease symptoms and overall quality of life. There were no significant differences in postoperative Reflux Symptom Index, Dysphagia, or Short-Form-36 scores. Significant differences in gastroesophageal reflux disease-Health Related Quality of Life scores were seen at preoperative, 1, 2, and 5 years postoperative (P < .05), with better symptom control in the fundoplication group. No significant difference was noted in postoperative DeMeester scores or percent time pH <4. Weight loss was significantly higher in the Roux-en-Y gastric bypass group at all postoperative time points up to 5 years (P < .05).

CONCLUSION

Roux-en-Y gastric bypass and fundoplication both decrease gastroesophageal reflux disease symptoms. Subjective data shows that patients undergoing Roux-en-Y gastric bypass may complain of worse symptoms compared to patients undergoing fundoplication. Objective data notes no significant difference in postoperative pH testing. Despite previous data, offering fundoplication or Roux-en-Y gastric bypass to patients with a body mass index of ≥35 kg/m2 is appropriate. The choice of surgical approach should be more directed to patient needs and desired goals at the time of the initial clinic visit.

Current Management and Treatment Paradigms of Gastroesophageal Reflux Disease following Sleeve Gastrectomy

Obesity is associated with serious comorbidities and economic implications. Bariatric surgery, most commonly Roux-en-Y gastric bypass and sleeve gastrectomy, are effective options for weight loss and the improvement of obesity-related comorbidities. With the growing obesity epidemic, there has been a concomitant rise in bariatric surgeries, particularly in sleeve gastrectomy, which has been the most widely performed bariatric surgery since 2013. Gastroesophageal reflux disease (GERD) is highly prevalent in obese individuals, can significantly impact quality of life and may lead to serious complications. Obesity and GERD both improve with weight loss. However, as the incidence of sleeve gastrectomy rises, recent data have revealed a risk of exacerbation of pre-existing GERD or the development of de novo GERD following sleeve gastrectomy. We performed a detailed review of GERD post-sleeve gastrectomy, including its overall incidence, pathophysiology and current treatment paradigms.

BRAZILIAN HERNIA AND ABDOMINAL WALL SOCIETY STATEMENT ON LARGE HIATAL HERNIAS MANAGEMENT

Large hiatal hernias, besides being more prevalent in the elderly, have a different clinical presentation: less reflux, more mechanical symptoms, and a greater possibility of acute, life-threatening complications such as gastric volvulus, ischemia, and visceral mediastinal perforation. Thus, surgical indications are distinct from gastroesophageal reflux disease-related sliding hiatal hernias. Heartburn tends to be less intense, while symptoms of chest pain, cough, discomfort, and tiredness are reported more frequently. Complaints of vomiting and dysphagia may suggest the presence of associated gastric volvulus. Signs of iron deficiency and anemia are found. Surgical indication is still controversial and was previously based on high mortality reported in emergency surgeries for gastric volvulus. Postoperative mortality is especially related to three factors: body mass index above 35, age over 70 years, and the presence of comorbidities. Minimally invasive elective surgery should be offered to symptomatic individuals with good or reasonable performance status, regardless of age group. In asymptomatic and oligosymptomatic patients, besides obviously identifying the patient's desire, a case-by-case analysis of surgical risk factors such as age, obesity, and comorbidities should be taken into consideration. Attention should also be paid to situations with greater technical difficulty and risks of acute migration due to increased abdominal pressure (abdominoplasty, manual labor, spastic diseases). Technical alternatives such as partial fundoplication and anterior gastropexy can be considered. We emphasize the importance of performing surgical procedures in cases of large hiatal hernias in high-volume centers, with experienced surgeons.

Fundoplication with extensive dissection of the esophagogastric junction: Lessons learned and outcomes from 178 consecutives patients

INTRODUCTION

Antireflux surgery is commonly associated with significant recurrence and complication rates, and several surgical techniques have been proposed to minimize them. The aim of this study is to evaluate the results of a fundoplication with extensive dissection of the esophagogastric junction 1 and 3 years after the procedure.

METHODS

Retrospective observational study including 178 patients with gastroesophageal reflux disease or hiatal hernia who underwent fundoplication with extensive dissection of the esophagogastric junction between 2015 and 2020. Hernia recurrence, symptoms and quality of life at 1 and 3 years after surgery were assessed by barium transit, endoscopy and questionnaires for symptoms and quality of life (GERD-HRQL).

RESULTS

Heartburn rate was 7.5% and 10.7% at 1 and 3 years respectively, regurgitation 3.8% and 6.9% and dysphagia was 3.7% and 7.6%. The presence of hiatal hernia was evident preoperatively in 55.1% and in 7.8% and 9.6% at follow-up and the median GERD-HRQL scale was 27, 2 and 0 respectively. There were no cases of slippage of the fundoplication or symptoms suggestive of vagal injury. No differences were found when comparing the different types of fundoplication in terms of reflux and recurrence or complications.

CONCLUSIONS

Fundoplication with extensive dissection of the esophagogastric junction contributes to correct positioning and better anchorage of the fundoplication, which is associated with low rates of hiatal hernia and reflux recurrence, as well as absence of slippage and lower possibility of vagal injury.

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.

Safety and efficacy of Roux-en-Y gastric bypass as revisional bariatric surgery after failed anti-reflux surgery: a systematic review

This systematic review evaluates the safety and efficacy of Roux-en-Y gastric bypass (RYGB) on weight loss and anti-reflux outcomes when used as a revisional bariatric surgical procedure after failed anti-reflux surgery. A systematic literature search next to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines was performed for articles published by 30 Mar 2022. After examining 416 papers, 23 studies were included (n = 874 patients). Primary anti-reflux surgery included mainly Nissen fundoplication (16 studies). Reasons for revisional surgery included predominantly gastroesophageal reflux disease (GERD) (reported by 18 studies), obesity (reported by 6 studies), and hiatal hernia (reported by 6 studies). Interval to surgical revision was 5.58 ± 2.46 years (range, 1.5-9.4 yr). Upper endoscopy at revision was performed for all patients; esophageal manometry and pH monitoring were reported in 6 and 4 studies, respectively. Mean body mass index (BMI) at revision was 37.56 ± 5.02 kg/m2 (range, 31.4-44 kg/m2). Mean excess weight loss was 69.74% reported by 12 studies. Delta BMI reported by 7 studies was 10.41 kg/m2. The rate of perioperative complications was 16.7%, including mostly stenosis, leakage, ventral hernia, and small bowel obstruction. Mean improvement rate of GERD was 92.62% with a mean follow-up of 25.64 ± 16.59 months reported in 20 studies. RYGB seems to be an efficient surgical treatment option in failed anti-reflux procedures, but should be performed in experienced centers for selected patients, since the rate of perioperative and long-term complications must be minimized. Cooperation between bariatric and reflux surgeons is essential to offer patients with obesity and GERD the best long-term outcome.

Surgeon experience with insurance barriers to offering gastric bypass as an evidence-based operation for pathologic GERD

INTRODUCTION

Obesity is an increasingly prevalent public health problem often associated with poorly controlled gastroesophageal reflux disease. Fundoplication has been shown to have limited long-term efficacy in patients with morbid obesity and does not address additional weight-related co-morbidities. Roux-en-Y gastric bypass (RYGB) is the gold standard operation for durable resolution of GERD in patients with obesity, and is also used as a salvage operation for GERD after prior foregut surgery. Surgeons report access to RYGB as surgical treatment for GERD is often limited by RYGB-specific benefit exclusions embedded within insurance policies, but the magnitude and scope of this problem is unknown.

METHODS

A 9-item survey evaluating surgeon practice and experience with insurance coverage for RYGB for GERD was developed and piloted by a SAGES Foregut Taskforce working group. This survey was then administered to surgeon members of the SAGES Foregut Taskforce and to surgeons participating in the SAGES Bariatrics and/or Foregut Facebook groups.

RESULTS

187 surgeons completed the survey. 89% reported using the RYGB as an anti-reflux procedure. 44% and 26% used a BMI of 35 kg/m2 and 30 kg/m2 respectively as cutoff for the RYGB. 89% viewed RYGB as the procedure of choice for GERD after bariatric surgery. 69% reported using RYGB to address recurrent reflux secondary to failed fundoplication. 74% of responders experienced trouble with insurance coverage at least half the time RYGB was offered for GERD, and 8% reported they were never able to get approval for RYGB for GERD indications in their patient populations.

CONCLUSION

For many patients, GERD and obesity are related diseases that are best addressed with RYGB. However, insurance coverage for RYGB for GERD is often limited by policies which run contrary to evidence-based medicine. Advocacy is critical to improve access to appropriate surgical care for GERD in patients with obesity.

Anti-reflux surgery vs. bariatric surgery as anti-GERD and hiatal hernia treatment in obese patient. New surgical proposals

The persistence of obesity favors the failure of the Fundoplication (FP) in the treatment of Gastroesophageal Reflux (GER). However, the weight loss obtained with the performance of a Gastric Bypass (GBP) allows a good resolution of symptoms, without increasing the incidence of postoperative complications. All of this leads us to consider that while FP is the indication in patients with BMI < 30, in those patients with BMI > 35, GBP appears to be the procedure of choice. But there is still no position in the case of patients with a BMI between 30 and 35, although we must take into account that an increase in GER recurrence has been described after FP in patients with a BMI > 30. Although Sleeve Gastrectomy (SG) is one of the most frequently used bariatric procedures in recent years, its association with a high rate of postoperative GER has led several authors to propose its performance associated with an anti-reflux procedure in patients with GER symptoms. Likewise, if the existence of an Hiatal Hernia is verified, it must be treated by hiatoplasty, both during the performance of a GBP and a SG. This simultaneous treatment is not associated with an increase in complications.

Risk factors for adverse outcomes following paraesophageal hernia repair among obese patients

BACKGROUND

Although obesity is an established risk factor for adverse outcomes after paraesophageal hernia repair (PEHR), many obese patients nonetheless receive PEHR. The purpose of this study was to explore risk factors for adverse outcomes of PEHR among this high-risk cohort. We hypothesized that obese patients may have other risk factors for adverse outcomes following PEHR.

METHODS

A retrospective study of adult obese patients who underwent minimally invasive PEHR from 2017 to 2019 was performed. Patients were excluded for BMI < 30 or if they had concomitant bariatric surgery at time of PEHR. The primary outcome of interest was a composite adverse outcome (CAO) defined as having any of the four following outcomes after PEHR: persistent GERD > 30 d, persistent dysphagia > 30 d, recurrence, or reoperation. Chi-square and t-test analysis was used to compare demographic and clinical characteristics. Multivariable logistic regression analysis was used to evaluate independent predictors of CAO.

RESULTS

In total, 139 patients met inclusion criteria with a median follow-up of 19.7 months (IQR 8.8-81). Among them, 51/139 (36.7%) patients had a CAO: 31/139 (22.4%) had persistent GERD, 20/139 (14.4%) had persistent dysphagia, 24/139 (17.3%) had recurrence, and 6/139 (4.3%) required reoperation. On unadjusted analysis, patients with a CAO were more likely to have a history of prior abdominal surgery (86.3% vs 70.5%, p = 0.04) and were less likely to have undergone a preoperative CT scan (27.5% vs 45.5%, p = 0.04). On multivariable analysis, previous abdominal surgery was independently associated with an increased likelihood of CAO whereas age and preoperative CT scan had a decreased likelihood of CAO.

CONCLUSIONS

Although there were adverse outcomes among obese patients, minimally invasive PEHR may be feasible in a subset of patients at specialized centers. These findings may help guide the appropriate selection of obese patients for PEHR.

ChatGPT: Friend or foe in medical writing? An example of how ChatGPT can be utilized in writing case reports

ChatGPT is a chatbot built on a natural language processing model which can generate human-like responses to prompts given to it. Despite its lack of domain-specific training, ChatGPT has developed remarkable accuracy in interpreting clinical information. In this article, we aim to assess what role ChatGPT can serve in medical writing. We recruited a first-year medical student with no prior experience in writing case reports to write a case report on a complex surgery with the assistance of ChatGPT. After a thorough evaluation of its responses, we believe that ChatGPT is a powerful medical writing tool that can be used to generate summaries, proofread, and provide valuable medical insight. However, ChatGPT is not a substitute for a study author due to several significant limitations, and should instead be used in conjunction with the author during the writing process. As the impact of natural language processing models such as ChatGPT grows, we suggest that guidelines be established on how to better utilize this technology to improve clinical research rather than outright prohibiting its usage.

Gastroesophageal Reflux Disease in Obesity: Bariatric Surgery as Both the Cause and the Cure in the Morbidly Obese Population

Gastrointestinal reflux disease (GERD) is a chronic, highly prevalent condition in the United States. GERD can significantly impact quality of life and lead to complications including aspiration pneumonia, esophageal stricture, Barrett's esophagus (BE) and esophageal cancer. Obesity is a risk factor for GERD, which often improves with weight loss and bariatric surgery. Though the incidence of bariatric surgery, in particular, minimally invasive sleeve gastrectomy, has risen in recent years, emerging data has revealed that the severity or new onset of GERD may follow bariatric surgery. We performed a literature review to provide a detailed analysis of GERD with an emphasis on bariatric surgery as both the cure and the cause for GERD in the morbidly obese population. We also describe the pathophysiological mechanisms, management approach and treatment strategies of GERD following bariatric surgery.

Laparoscopic antireflux surgery for refractory gastroesophageal reflux disease: long-term clinical outcomes

Persistent symptoms despite adequate Proton Pump Inhibitors (PPI) treatment are described in up to 40% of patients with Gastroesophageal Reflux Disease (GERD). The efficacy of Laparoscopic Antireflux Surgery (LARS) in PPI non-responder patients is still unclear. This observational study aims to report the long-term clinical outcomes and predictors of dissatisfaction in a cohort of refractory GERD patients submitted to LARS. Patients with preoperative refractory symptoms and objective GERD evidence submitted to LARS between 2008 and 2016 were included in the study. Primary endpoint was overall satisfaction with the procedure, secondary endpoints were long-term GERD symptom relief and endoscopic findings. Univariate and multivariate analyses were performed to compare satisfied and dissatisfied patients, in order to identify preoperative predictors of dissatisfaction. A total of 73 refractory GERD patients who underwent LARS were included in the study. At a mean follow-up of 91.2 ± 30.5 months, the satisfaction rate was 86.3%, with a statistically significant reduction in typical and atypical GERD symptoms. Causes of dissatisfaction were severe heartburn (6.8%), gas bloat syndrome (2.8%), and persistent dysphagia (4.1%). Multivariate analysis showed that a number of Total Distal Reflux Episodes (TDRE) > 75 was a predictive factor of long-term dissatisfaction after LARS while a partial response to PPI was a protective factor against dissatisfaction. LARS guarantees a high level of long-term satisfaction for selected refractory GERD patients. An abnormal TDRE at 24 h-multichannel intraluminal impedance-pH monitoring and the lack of response to preoperative PPI were predictors of long-term dissatisfaction.

Multi-society consensus conference and guideline on the treatment of gastroesophageal reflux disease (GERD)

BACKGROUND

Gastroesophageal reflux disease (GERD) is one of the most common diseases in North America and globally. The aim of this guideline is to provide evidence-based recommendations regarding the most utilized and available endoscopic and surgical treatments for GERD.

METHODS

Systematic literature reviews were conducted for 4 key questions regarding the surgical and endoscopic treatments for GERD in adults: preoperative evaluation, endoscopic vs surgical or medical treatment, complete vs partial fundoplication, and treatment for obesity (body mass index [BMI] ≥ 35 kg/m2) and concomitant GERD. Evidence-based recommendations were formulated using the GRADE methodology by subject experts. Recommendations for future research were also proposed.

RESULTS

The consensus provided 13 recommendations. Through the development of these evidence-based recommendations, an algorithm was proposed for aid in the treatment of GERD. Patients with typical symptoms should undergo upper endoscopy, manometry, and pH-testing; additional testing may be required for patients with atypical or extra-esophageal symptoms. Patients with normal or abnormal findings on manometry should consider undergoing partial fundoplication. Magnetic sphincter augmentation or fundoplication are appropriate surgical procedures for adults with GERD. For patients who wish to avoid surgery, the Stretta procedure and transoral incisionless fundoplication (TIF 2.0) were found to have better outcomes than proton pump inhibitors alone. Patients with concomitant obesity were recommended to undergo either gastric bypass or fundoplication, although patients with severe comorbid disease or BMI > 50 should undergo Roux-en-Y gastric bypass for the additional benefits that follow weight loss.

CONCLUSION

Using the recommendations an algorithm was developed by this panel, so that physicians may better counsel their patients with GERD. There are certain patient factors that have been excluded from included studies/trials, and so these recommendations should not replace surgeon-patient decision making. Engaging in the identified research areas may improve future care for GERD patients.

Criteria of patient selection for magnetic sphincter augmentation

This article is an expert review of published literature with the goal of defining the ideal patient selection for Magnetic Sphincter Augmentation (MSA) in Anti-reflux Surgery (ARS). The authors performed a literature search of outcomes after MSA for different patient populations. Although MSA utilization has expanded to include patients with advanced gastroesophageal reflux disease (GERD), obese patients, and patients with a history of bariatric surgery there is still a paucity of data to support its definitive use in these cohorts. We concluded that younger patients with mild/moderate GERD as evidenced by objective studies in conjunction with normal motility on manometry have the most favorable outcomes after MSA. MSA should be avoided in patients with allergies to nickel, titanium, stainless steel, or ferrous materials. As the utilization of MSA in ARS continues to expand and as more robust data emerges the ideal patient for this device will likely expand as well.

Roux-en-Y Gastrojejunostomy: is it an effective treatment for complex Hiatal hernias in the morbidly obese?

BACKGROUND

Primary repair failure rates for hiatal hernias (HH) can reach up to 40%, this is especially high in the morbidly obese patient. There is no clear data on how to manage this patient subset. This paper evaluates the efficacy of Roux-N-Y Gastrojejunostomy (RNY GJ) for treatment of symptomatic HH.

METHODS

A retrospective analysis of all patients who received a Roux-en-Y Gastrojejunostomy (RNY GJ) for HH at our institution between January 2016 and January 2021 was performed. Patient demographics, symptoms, and post-operative outcomes were recorded and univariate analysis was performed between preoperative and postoperative symptoms.

RESULTS

Thirty-seven patients with a mean age of 56.9 years (SD 11.8) underwent RNY GJ. Patients were mostly female (81.1%) with a mean BMI of 36.8 (SD 8.4). An 78.4% reduction in symptoms of either heartburn, dysphagia, or regurgitation was noted at follow up (p < 0.001).

CONCLUSIONS

RNY GJ represents a safe procedure for morbidly obese patients with hiatal hernias with no mortalities amongst our patient cohort along with a significant reduction in pre-operative symptoms and no symptomatic recurrences. RNY GJ should be considered as the operation of choice for repair for this patient population.

Review of SAGES GERD guidelines and recommendations

BACKGROUND

The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) developed evidence-based guidelines for the management of patients with gastroesophageal reflux disease (GERD). The aim of this study is to evaluate guidelines lacking agreement among experts (grades B-D) or lacking support from randomized controlled trials (levels II-III).

METHODS

Six guidelines were chosen for evaluation. A retrospective review of a multicenter database of patients undergoing fundoplication surgery for treatment of GERD between 2015 and 2020 was performed. Patients that underwent a concurrent gastrectomy or were diagnosed with pre-operative achalasia were excluded. Demographics, pre-operative, intra-operative, and post-operative variables were collected. Post-operative outcomes were evaluated based on selected SAGES guidelines. Outcomes were assessed using multivariable regression or stratified analysis for each guideline.

RESULTS

A total of 444 patients from four institutions underwent surgery for the management of GERD with a median (interquartile range) follow-up of 16 (13) months. Guidelines supported by our data were (1) robotic repair has similar short-term outcomes to laparoscopic repair, (2) outcomes in older patients are similar to outcomes of younger patients undergoing antireflux surgery, and (3) following laparoscopic antireflux surgery, dysphagia has been reported to significantly improve from pre-operative values. Guidelines that were not supported were (1) mesh reinforcement may be beneficial in decreasing the incidence of wrap herniation, (2) a bougie has been found to be effective, and (3) the long-term effectiveness of fundoplication in obese individuals (BMI > 30) has been questioned due to higher failure rates.

CONCLUSION

Many SAGES GERD guidelines not receiving Grade A or Level I recommendation are supported by large, multicenter database findings. However, further studies at low risk for bias are needed to further refine these guidelines.

Laparoscopic fundoplication versus laparoscopic Roux-en-Y gastric bypass for gastro-oesophageal reflux disease in obese patients: protocol for a randomized clinical trial

BACKGROUND

Laparoscopic fundoplication (LF) is the standard surgical procedure for the treatment of gastro-oesophageal reflux disease (GORD). Laparoscopic Roux-en-Y gastric bypass (LRYGB) is commonly performed to achieve weight loss in obese patients, but it also has anti-reflux properties. Hence, in the obese population suffering from GORD, LRYGB could be an alternative to LF. The aim of this trial will be to compare LF and LRYGB in an obese population presenting with GORD and being considered for surgery.

METHODS

This will be an investigator-initiated randomized clinical trial. The research population will be obese patients (BMI 30-34.9 with waist circumference more than 88 cm (women) or more than 102 cm (men), or BMI 35-40 with any waist circumference) referred to a public hospital for consideration of anti-reflux surgery. The primary aim of the study will be to determine the efficacy of LF compared with LRYGB on subjective and objective control of GORD. Secondary aims include determining early and late surgical morbidity and the side-effect profile of LF compared with LRYGB and to quantify any non-reflux benefits of LRYGB (including overall quality of life) compared with LF.

CONCLUSION

This trial will determine whether LRYGB is effective and acceptable as an alternative to LF for the surgical treatment of GORD in obese patients Registration number: Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12622000636752p (https://www.anzctr.org.au/).

Comparative Outcomes of Anti-Reflux Surgery in Obese Patients with Gastroesophageal Reflux Disease1

INTRODUCTION

Roux-en-Y gastric bypass (RYGB) has been the preferred operation for obese patients with gastroesophageal reflux disease (GERD); however, some patients are hesitant to undergo bypass. Obese patients have a multifactorial predisposition to GERD, including lower esophageal sphincter (LES) dysfunction and aberrant pressure gradients across their diaphragmatic crura. Among non-obese patients, anti-reflux surgery (ARS) with hiatal hernia (HH) repair and LES augmentation has shown excellent long-term results. We aimed to determine whether patient satisfaction and GERD recurrence differed between obese and non-obese patients who underwent ARS.

METHODS

Review of patients who underwent ARS between January 2012 and June 2021 was performed. Perioperative and postoperative characteristics were compared across three BMI groups: BMI < 30 kg/m², 30 kg/m² ≤ BMI < 35 kg/m², and BMI ≥ 35 kg/m².

RESULTS

Four-hundred thirteen patients were identified, of which 294 (71.1%) had BMI < 30 kg/m², 87 (21.1%) were 30 kg/m² ≤ BMI < 35 kg/m², and 32 (7.7%) had a BMI ≥ 35 kg/m². Patients with BMI ≥ 35 kg/m² had higher preoperative manometric and EndoFLIP™ intra-balloon pressure at the LES than those with lower BMIs. This value was increased to a similar level throughout ARS across the three cohorts. Post-operative GERD-specific satisfaction was similar across the three cohorts, as were rates of postoperative reflux and hiatal hernia recurrence on barium swallow; rates of reoperation were low.

CONCLUSIONS

ARS with HH repair and LES augmentation may be appropriate for select patients across a range of BMIs, including those with a BMI ≥ 35 kg/m² who are hesitant to undergo RYGB.

Transoral incisionless fundoplication is cost-effective for treatment of gastroesophageal reflux disease

Background and study aims  Given the sizable number of patients with symptomatic gastroesophageal reflux disease (GERD) despite proton pump inhibitor (PPI) therapy, non-pharmacologic treatment has become increasingly utilized. The aim of this study was to analyze the cost-effectiveness of medical, endoscopic, and surgical treatment of GERD. Patients and methods  A deterministic Markov cohort model was constructed from the US healthcare payer's perspective to evaluate the cost-effectiveness of three competing strategies: 1) omeprazole 20 mg twice daily; 2) transoral incisionless fundoplication (TIF 2.0); and 3) laparoscopic Nissen fundoplication [LNF]. Cost was reported in US dollars with health outcomes recorded in quality-adjusted life years (QALYs). Ten-year and lifetime time horizons were utilized with 3 % discount rate and half-cycle corrections applied. The main outcome was incremental cost-effectiveness ratio (ICER) with a willingness-to-pay threshold of $ 100,000 per QALY. Probabilistic sensitivity analyses were also performed. Results  In our base-case analysis, the average cost of TIF 2.0 was $ 13,978.63 versus $ 17,658.47 for LNF and $ 10,931.49 for PPI. Compared to the PPI strategy, TIF 2.0 was cost-effective with an incremental cost of $ 3,047 and incremental effectiveness of 0.29 QALYs, resulting in an ICER of $ 10,423.17 /QALY gained. LNF was strongly dominated by TIF 2.0. Over a lifetime horizon, TIF 2.0 remained the cost-effective strategy for patients with symptoms despite twice-daily 20-mg omeprazole. TIF 2.0 remained cost-effective after varying parameter inputs in deterministic and probabilistic sensitivity analyses and for scenario analyses in multiple age groups. Conclusions  Based upon this study, TIF 2.0 was cost-effective for patients with symptomatic GERD despite low-dose, twice-daily PPI.

Loosening the belt on magnetic sphincter augmentation indications: does body mass index matter?

BACKGROUND

Magnetic sphincter augmentation (MSA) is an effective treatment for gastroesophageal reflux disease (GERD). However, the impact of obesity on MSA outcomes is unknown. The objective of this study was to evaluate the effectiveness of MSA in patients with GERD and obesity.

METHODS

A retrospective cohort study was performed of consecutive patients who underwent laparoscopic MSA at three high-volume centers from 2016 to 2019. Patients were grouped into four cohorts according to the World Health Organization body mass index (BMI) classification: BMI < 25 (normal weight), BMI 25-29.9 (overweight), BMI 30-34.9 (obese class I), and BMI > 35 (obese class II-III). Preoperative, operative, and postoperative data were compared between groups.

RESULTS

A total of 621 patients underwent laparoscopic MSA during the study period. Follow-up with endoscopy or video esophagram was available for 361 patients (58%) with a median follow-up of 15.4 months. Baseline characteristics of the groups were similar except the BMI > 35 group had more females and a higher preoperative median DeMeester score. There were no significant differences in outcomes between normal weight, overweight, and obese patient groups undergoing MSA. All groups experienced significant reductions in acid suppressive medication use, low GERD-HRQL scores, low DeMeester scores, few intraoperative and postoperative complications, and low rates of hiatal hernia recurrence after MSA.

CONCLUSIONS

Magnetic sphincter augmentation is safe and effective in improving GERD symptoms, reducing esophageal acid exposure, and preventing hiatal hernia recurrence, irrespective of patient BMI. MSA should be considered an acceptable treatment option for obese patients with GERD.

EZH2-mediated suppression of CLDN1 leads to barrier dysfunction in PPI-refractory gastroesophageal reflux disease

BACKGROUND

PPI-refractory gastroesophageal reflux disease (RGERD) is characterized as the existence of reflux symptoms resistant to optimized PPI treatment. Alleviated mucosal integrity has been regarded as one of the mechanisms of RGERD.

METHODS

RNA sequencing analysis and GSEA were performed. Human biopsy samples, cell lines, and rat models were recruited. Trans-epithelial electrical resistance (TEER) was tested and a FITC-dextran flux assay was performed to detect barrier permeability. Tissue morphology was evaluated using HE staining, while gene expression was measured by qRT-PCR, western blotting, flow cytometry, immunofluorescence, immunohistochemistry, and chromatin immunoprecipitation (ChIP) analysis.

RESULTS

The tight junction protein Claudin-1 is significantly weakened in the RGERD epithelium, while levels of EZH2-mediated H3K27me3 were increased. Forced EZH2 expression in epithelial cells led to H3K27me3 accumulation and Claudin-1 suppression, which consequently caused epithelial barrier dysfunction. Notably, studies on esophagogastroduodenal anastomosis (EGDA) rat models showed the attenuation of Claudin-1 level and barrier function could be rescued by an Ezh2 inhibitor GSK126. ChIP analysis followed by qPCR (ChIP-qPCR) revealed H3K27me3 suppressed CLDN1 via accumulating at the TSS area.

CONCLUSION

For the first time, we explored the attenuated tight junction of RGERD, demonstrating a potential underlying mechanism that EZH2-mediated H3K27me3 could impair esophageal epithelial barrier function by suppressing the transcription of CLDN1.

IMPACT OF BODY MASS INDEX ON PERIOPERATIVE OUTCOMES FOR COMPLEX HIATUS HERNIA BY VIDEOLAPAROSCOPY

BACKGROUND:

The influence of body mass index on perioperative complications of hiatal hernia surgery is controversial in the surgical literature.

AIMS:

The aim of this study was to evaluate the influence of body mass index on perioperative complications and associated risk factors for its occurrence.

METHODS:

Two groups were compared on the basis of body mass index: group A with body mass index <32 kg/m² and group B with body mass index ³32 kg/m². A multivariate analysis was carried out to identify independent predictors for complications. Complications were classified based on the Clavien-Dindo score.

RESULTS:

A total of 49 patients were included in this study, with 30 in group A and 19 in group B. The groups were compared based on factors, such as age, Charlson Comorbidity Index, surgical techniques used, type and location of hiatal hernia, and length of stay. Findings showed that 70% of patients had complex hiatal hernia. In addition, 14 complications also occurred: 7 pleuropulmonary and 7 requiring reoperation. From the seven reoperated, there were three recurrences, two gastrointestinal fistulas, one diaphragmatic hernia, and one incisional hernia. Complications were similar in both the groups, with type IV hiatal hernia being the only independent predictor.

CONCLUSIONS:

Body mass index does not affect perioperative complications in anti-reflux surgery and type IV hiatal hernia is an independent predictor of its occurrence.

Gastroesophageal Reflux Disease and the Patient with Obesity

Patients with obesity who present with gastroesophageal reflux disease (GERD) require a nuanced approach. Those with lower body mass index (BMI) (less than 33) can be counseled on weight loss, and if successful may be approached with laparoscopic fundoplication. Those who are unable to achieve weight loss or those who present with a BMI greater than or equal to 35 should proceed with laparoscopic Roux-en-Y gastric bypass (LRYGB). Conversion to LRYGB from sleeve gastrectomy is a safe and effective way to manage GERD after sleeve gastrectomy.

Anatomic location and mechanism of hiatal hernia recurrence: a video-based assessment

INTRODUCTION

Hiatal hernia recurrence following surgical repair is common. We sought to define the most common anatomic location and mechanism for hiatal failure to inform technical strategies to decrease recurrence rates.

METHODS

Retrospective chart review and video analysis were performed for all recurrent hiatal hernia operations performed by a single surgeon between January 2013 and April 2020. Hiatal recurrences were defined by anatomic quadrants. Recurrences on both left and right on either the anterior or posterior portion of the hiatus were simply classified as 'anterior' or 'posterior', respectively. Three or more quadrants were defined as circumferential. Mechanism of recurrence was defined as disruption of the previous repair or dilation of the hiatus.

RESULTS

There were 130 patients to meet criteria. Median time to reoperation from previous hiatal repair was 60 months (IQR19.5-132). First-time recurrent repairs accounted for 74%, second time 18%, and three or more previous repairs for 8% of analyzed procedures. Mesh had been placed at the hiatus in a previous operation in 16%. All reoperative cases were completed laparoscopically. Video analysis revealed anterior recurrences were most common (67%), followed by circumferential (29%). There were two with left-anterior recurrence (1.5%), two posterior recurrence (1.5%), and one right-sided recurrence. The mechanism of recurrence was dilation in 74% and disruption in 26%. Disruption as a mechanism was most common in circumferential hiatal failures. Neither the prior number of hiatal surgeries nor the presence of mesh at the time of reoperation correlated with anatomic recurrence location or mechanism. Reoperations in patients with hiatal disruption occurred after a shorter interval when compared to hiatal dilation.

CONCLUSION

The most common location and mechanism for hiatal hernia recurrence is anterior dilation of the hiatus. Outcomes following techniques designed to reinforce the anterior hiatus and perhaps to prevent hiatal dilation should be explored.

Excess Body Weight and Gastroesophageal Reflux Disease

Background

Gastroesophageal reflux disease (GERD) is strongly associated with excess body weight.

Summary

GERD is characterized by typical symptoms with or without mucosal damage because of retrograde flow of gastric content into the esophagus. An ineffective esophagogastric junction (EGJ) combined with anatomical abnormalities is considered to be causative. The incidence of GERD is strongly associated with excess body weight, reflecting the pathophysiological relevance of the abdominothoracic pressure gradient.

Key Message

Weight loss has been demonstrated to be an effective therapy for GERD combined with obesity. In cases in which surgical therapy is indicated, traditional antireflux surgery has led to equivocal results, advocating a proximal Roux-en-Y gastric bypass in these patients to correct both GERD and excess body weight.

Narrative review of management controversies for paraesophageal hernia

Objective

To review management controversies in paraesophageal hernia and options for surgical repair.

Background

Paraesophageal hernia is an increasingly common problem. There are controversies over whether and when paraesophageal hernias should be surgically repaired. In addition, if these hernias are to be repaired, the method of repair, need for mesh reinforcement, need for fundoplication, and need for gastropexy are not uniformly accepted.

Methods

Recent literature was reviewed on need for repair, approach (open, laparoscopic or robotic surgery), method of repair (primary suture, use of relaxing incisions, use of mesh reinforcement), materials and configuration of mesh reinforcement, need and type of fundoplication, and need for gastropexy, with emphasis on surgical outcomes.

Conclusions

The extant literature suggests that paraesophageal hernia should be approached in a patient-centered, precision medicine manner. In general, hernia reduction, sac excision and primary suture approximation of the hiatal crura are mandatory. Use of mesh should be based on individual risk factors; if mesh is used, biological meshes appear to have a more favorable safety profile, with the “reverse C” or keyhole configuration allowing for increase in crural tensile strength at it most vulnerable areas. Use and choice of fundoplication or magnetic sphincter augmentation should be based on individual considerations. Finally, gastropexy is generally ineffective and should be used only in extreme circumstances.

Outcomes of Laparoscopic Redo Fundoplication in Patients With Failed Antireflux Surgery: A Systematic Review and Meta-analysis

OBJECTIVE

The aim of this meta-analysis was to summarize the current available evidence regarding the surgical outcomes of laparoscopic redo fundoplication (LRF).

SUMMARY OF BACKGROUND DATA

Although antireflux surgery is highly effective, a minority of patients will require a LRF due to recurrent symptoms, mechanical failure, or intolerable side-effects of the primary repair.

METHODS

A systematic electronic search on LRF was conducted in the Medline database and Cochrane Central Register of Controlled Trials. Conversion and postoperative morbidity were used as primary endpoints to determine feasibility and safety. Symptom improvement, QoL improvement, and recurrence rates were used as secondary endpoints to assess efficacy. Heterogeneity across studies was tested with the Chi-square and the proportion of total variation attributable to heterogeneity was estimated by the inconsistency (I2) statistic. A random-effect model was used to generate a pooled proportion with 95% confidence interval (CI) across all studies.

RESULTS

A total of 30 studies and 2,095 LRF were included. The mean age at reoperation was 53.3 years. The weighted pooled proportion of conversion was 6.02% (95% CI, 4.16%-8.91%) and the meta-analytic prevalence of major morbidity was 4.98% (95% CI, 3.31%-6.95%). The mean follow-up period was 25 (6-58) months. The weighted pooled proportion of symptom and QoL improvement was 78.50% (95% CI, 74.71%-82.03%) and 80.65% (95% CI, 75.80%-85.08%), respectively. The meta-analytic prevalence estimate of recurrence across the studies was 10.71% (95% CI, 7.74%-14.10%).

CONCLUSIONS

LRF is a feasible and safe procedure that provides symptom relief and improved QoL to the vast majority of patients. Although heterogeneously assessed, recurrence rates seem to be low. LRF should be considered a valuable treatment modality for patients with failed antireflux surgery.

Gastro-oesophageal reflux disease

Gastro-oesophageal reflux disease (GERD) is a common disorder in adults and children. The global prevalence of GERD is high and increasing. Non-erosive reflux disease is the most common phenotype of GERD. Heartburn and regurgitation are considered classic symptoms but GERD may present with various atypical and extra-oesophageal manifestations. The pathophysiology of GERD is multifactorial and different mechanisms may result in GERD symptoms, including gastric composition and motility, anti-reflux barrier, refluxate characteristics, clearance mechanisms, mucosal integrity and symptom perception. In clinical practice, the diagnosis of GERD is commonly established on the basis of response to anti-reflux treatment; however, a more accurate diagnosis requires testing that includes upper gastrointestinal tract endoscopy and reflux monitoring. New techniques and new reflux testing parameters help to better phenotype the condition. In children, the diagnosis of GERD is primarily based on history and physical examination and treatment vary with age. Treatment in adults includes a combination of lifestyle modifications with pharmacological, endoscopic or surgical intervention. In refractory GERD, optimization of proton-pump inhibitor treatment should be attempted before a series of diagnostic tests to assess the patient's phenotype.

Impact of bariatric surgery on gastroesophageal reflux disease and esophageal motility

PURPOSE OF REVIEW

Obesity is rapidly increasing in prevalence, and bariatric surgery has become a popular treatment option that can improve all-cause mortality in obese individuals. Gastroesophageal reflux disease (GERD) and esophageal motility disorders are common in the obese population, and the effects of bariatric surgery on these conditions differ depending on the type of bariatric surgery performed.

RECENT FINDINGS

Laparoscopic adjustable gastric banding has declined in popularity due to its contributions to worsening GERD symptoms and the development of esophageal dysmotility. Although laparoscopic sleeve gastrectomy (LSG) is the most popular type of bariatric surgery, a comprehensive assessment for acid reflux should be performed as LSG has been linked with worsening GERD. Novel methods to address GERD due to LSG include magnetic sphincter augmentation and concomitant fundoplication. Due to the decreased incidence of postoperative GERD and dysmotility compared to other types of bariatric surgeries, Roux-en-Y gastric bypass should be considered for obese patients with GERD and esophageal dysmotility.

SUMMARY

Bariatric surgery can affect esophageal motility and contribute to worsening or development of GERD. A thorough workup of gastrointestinal symptoms before bariatric surgery should be performed with consideration for formal testing with high-resolution manometry and pH testing. Based on these results, the choice of bariatric surgery technique should be tailored accordingly to improve clinical outcomes.

When should we use mesh in laparoscopic hiatal hernia repair? A systematic review

The use of mesh in laparoscopic hiatal hernia repair (LHHR) remains controversial. The aim of this systematic review was to determine the usefulness of mesh in patients with large hiatal hernia (HH), obesity, recurrent HH, and complicated HH. We performed a systematic review of the current literature regarding the outcomes of LHHR with mesh reinforcement. All articles between 2000 and 2020 describing LHHR with primary suturing, mesh reinforcement, or those comparing both techniques were included. Symptom improvement, quality of life (QoL) improvement, and recurrence rates were evaluated in patients with large HH, obesity, recurrent HH, and complicated HH. Reported outcomes of the use of mesh in patients with large HH had wide variability and heterogeneity. Morbidly obese patients with HH should undergo a weight-loss procedure. However, the benefits of HH repair with mesh are unclear in these patients. Mesh reinforcement during redo LHHR may be beneficial in terms of QoL improvement and hernia recurrence. There is scarce evidence supporting the use of mesh in patients undergoing LHHR for complicated HH. Current data are heterogeneous and have failed to find significant differences when comparing primary suturing with mesh reinforcement. Further research is needed to determine in which patients undergoing LHHR mesh placement would be beneficial.

Preoperative physiological esophageal assessment for anti-reflux surgery: A guide for surgeons on high-resolution manometry and pH testing

Gastroesophageal reflux disease (GERD) is one of the most commonly encountered digestive diseases in the world, with the prevalence continuing to increase. Many patients are successfully treated with lifestyle modifications and proton pump inhibitor therapy, but a subset of patients require more aggressive intervention for control of their symptoms. Surgical treatment with fundoplication is a viable option for patients with GERD, as it attempts to improve the integrity of the lower esophageal sphincter (LES). While surgery can be as effective as medical treatment, it can also be associated with side effects such as dysphagia, bloating, and abdominal pain. Therefore, a thorough pre-operative assessment is crucial to select appropriate surgical candidates. Newer technologies are becoming increasingly available to help clinicians identify patients with true LES dysfunction, such as pH-impedance studies and high-resolution manometry (HRM). Pre-operative evaluation should be aimed at confirming the diagnosis of GERD, ruling out any major motility disorders, and selecting appropriate surgical candidates. HRM and pH testing are key tests to consider for patients with GERD like symptoms, and the addition of provocative measures such as straight leg raises and multiple rapid swallows to HRM protocol can assess the presence of underlying hiatal hernias and to test a patient’s peristaltic reserve prior to surgery.

pH Impedance Parameters Associated with Improvement in GERD Health-Related Quality of Life Following Anti-reflux Surgery

INTRODUCTION

pH impedance testing is the most sensitive diagnostic test for detecting gastroesophageal reflux disease (GERD). The literature remains inconclusive on which preoperative pH impedance testing parameters are associated with an improvement in heartburn symptoms after anti-reflux surgery. The objective of this study was to evaluate which parameters on preoperative pH impedance testing were associated with improved GERD health-related quality of life (GERD-HRQL) following surgery.

METHODS

Data from a single-institution foregut database were used to identify patients with reflux symptoms who underwent anti-reflux surgery between 2014 and 2020. Acid and impedance parameters were extracted from preoperative pH impedance studies. GERD-HRQL was assessed pre- and postoperatively with a questionnaire that evaluated heartburn, dysphagia, and the impact of acid-blocking medications on daily life. Patient characteristics, fundoplication type, and four pH impedance parameters were included in a multivariable linear regression model with improvement in GERD-HRQL as the outcome.

RESULTS

We included 108 patients (59 Nissen and 49 Toupet fundoplications), with a median follow-up time of 1 year. GERD-HRQL scores improved from 22.4 (SD ± 10.1) preoperatively to 4.2 (± 6.2) postoperatively. In multivariable analysis, a normal preoperative acid exposure time (p = 0.01) and Toupet fundoplication (vs. Nissen; p = 0.03) were independently associated with greater improvement in GERD-HRQL.

CONCLUSIONS

Of the four pH impedance parameters that were investigated, a normal preoperative acid exposure time was associated with greater improvement in quality of life after anti-reflux surgery. Further investigation into the critical parameters on preoperative pH impedance testing using a multi-institutional cohort is warranted.

Invasive Treatment Options for Gastro-Esophageal Reflux Disease

Reflux disease continues to be one of the most common pathologies in the world. There is much discussion regarding the mechanism of developing and the variety of possible symptoms. In recent years, the use of new technologies, like high-resolution manometry and pH impedance, brought new insights into this disease. Also, there are emerging therapies that are covering the gap between the patients treated with proton-pump inhibitor (PPI) therapy and those who benefit the most from laparoscopic treatment (hiatal hernia, complications of gastroesophageal reflux disease (GERD). Also, most of them are less invasive than a laparoscopic fundoplication. We present a short review of the treatment options in patients who need more than lifestyle changes and PPI therapy.

Spontaneous Chest Wall Herniation in Centrally Obese Patients: A Single-Center Experience of a Rare Problem

BACKGROUND

Spontaneous rib fractures, especially in association with chest wall herniation, represent an uncommon pathology. As such, there are little data analyzing approaches to treatment or regarding the success of intervention. The goal of this study was to analyze our cumulative experience with this unusual condition.

METHODS

A case series of 12 patients was gathered from a single institution based on outpatient visits between February 2015 and October 2018. Each chart was retrospectively reviewed with particular attention to age, gender, BMI, area of injury, and smoking history. Patients presented with complaints of dyspnea or pain related to rib fractures with or without intercostal neuralgia. Each of these patients was noted to have rib fractures with lung herniation either on imaging, outside hospital records, or physical exam. A thorough medical history was obtained with attempts to find common predisposing factors as well as data regarding any previous surgical intervention for their herniation.

RESULTS

Nine of the 12 patients reviewed had recent or prior surgical intervention. Every patient seen in the clinic with a spontaneous fracture and herniation incidentally had a BMI >30 and was therefore classified as obese. Additionally, every patient who had a recurrence after their first surgical attempt at repair had a BMI greater than or equal to 35. All 12 patients seen at our institution were males. The failure rate of operative intervention was 66%.

CONCLUSIONS

Obesity was a prevalent comorbidity in the patient population we reviewed. Given the role obesity plays in abdominal and hiatal hernia repair success rates, it should be considered that obesity is a significant contributor to chest wall herniation if rib fractures occur. With 66% chest wall repair failure, patient selection is critical in the success of surgical intervention. Perhaps additional patient optimization, especially weight loss, should be considered prior to surgery.

Trends in laparoscopic anti-reflux surgery: a Korea nationwide study

BACKGROUND

In 2014, the results derived from the nationwide data of the Korean Anti-reflux Surgery Study (KARS) demonstrated short-term feasibility and safety of anti-reflux surgery. This study aimed to update the longer-term safety and feasibility of laparoscopic anti-reflux surgery up to 1-year follow-up with the KARS nationwide cohort.

METHODS

The data of 310 patients with GERD who received anti-reflux surgery up to 2018 were analyzed. Baseline patient characteristics, postoperative symptom resolution, and postoperative complications were evaluated at postoperative 3 months and 1 year using the questionnaire designed by KARS. We divided the patients into two groups according to the operation period (up to and after 2014) to identify changes in the trends of the characteristics of surgical patients and operative qualities.

RESULTS

The typical preoperative symptoms were present in 275 patients (91.7%), and atypical symptoms were present in 208 patients (71.0%). Ninety-seven (35.5%) and 124 patients (46.1%) had inadequate PPI responses and hiatal hernia, respectively. At postoperative 1 year, typical and atypical symptoms were either completely or partially controlled in 90.3% and 73.5.0% of patients, respectively. Moderate-to-severe dysphagia, inability to belch, gas bloating, and flatulence at postoperative 1 year were identified in 23.5%, 29.4%, 23.2%, and 22.0% of patients, respectively. The number of surgical patients continuously increased from 2011 to 2018 in Korea. The proportion of patients with hiatal hernia and comorbidities increased (p < 0.01, p = 0.053), and the operation time decreased significantly (p < 0.01) in the late period (2015-2018) as compared with the early period (2011-2014). Symptom control and complication rate were equivalent between the two periods.

CONCLUSIONS

Anti-reflux surgery was effective with > 90% of typical symptom resolution and posed a comparable postoperative complication rate with those in Western studies with mid-term to long-term follow-up. This result supports the feasibility and safety of anti-reflux surgery as a treatment for GERD in the Korean population.

Evaluation and Treatment of Patients with Persistent Reflux Symptoms Despite Proton Pump Inhibitor Treatment

Despite the exceptional efficacy of proton pump inhibitors (PPIs) in healing reflux esophagitis complicating gastroesophageal reflux disease (GERD), up to 40% of patients who take PPIs for GERD complain of persistent GERD symptoms. There is no clear consensus on the type, dosing, and duration of PPI therapy required to establish a diagnosis of PPI-refractory GERD symptoms, but most authorities do not consider patients "PPI-refractory" unless they have been on double-dose PPIs. This article discusses the mechanisms that might underlie heartburn that does not respond PPIs and an approach to the management of patients with PPI-refractory GERD symptoms.

Surgical Therapy of Esophagus Reflux Disease

Introduction: Fundoplication is the most frequently used action in the surgical treatment of gastroesophageal reflux disease (GERD). There are several types of fundoplication. The objective of our study was to identify complications after surgical treatment of GERD.

Material and Methods: We determined several parameters of the monitored and we recorded complications related to surgery: occurrence of surgical, early and late post-surgical complications.

Results: 52 patients (24 men and 28 women) with an average age of 53.3 years were included. The most frequently chosen type of fundoplication was Nissen-Rossetti. The most frequently occurring subjective post-surgery difficulties were temporal dysphagia (11.5%), sensation of nausea and vomiting after eating (3.8 %), pain in the surgical wound, and dyspnoea occurring in all patients after thoracotomy. Early post-surgery complication developed in 6 patients (11.5 %)

Conclusion: Occurrence of complications in the group monitored by us was up to 11.5 % and perioperative mortality was 0 %. Hiatal hernia is frequently found in patients with GERD and it is considered to be one of the major causes for the development of this disease.

Postoperative Gastrointestinal Complaints After Laparoscopic Nissen Fundoplication

PURPOSE

To investigate the postoperative gastrointestinal complaints and their effects on the satisfaction level of patients after laparoscopic Nissen fundoplication (LNF).

MATERIALS AND METHODS

Over a 7-year period, 553 patients who underwent "floppy" LNF were evaluated for preoperative and postoperative complaints. For this purpose, a set of questions derived from gastroesophageal reflux disease-health-related quality-of-life questionnaire (GERD-HRQL) was used. A P-value of <0.05 was considered to show a statistically significant result.

RESULTS

The present study included 215 patients with a mean follow-up of 60 months. Reflux-related symptoms [regurgitation (17.7%), heartburn (17.2%), and vomiting (3.7%)] and nonspecific symptoms [bloating (50.2%), abdominal pain (15.3%), and belching (27%)] showed a significant decrease (P<0.001) after the surgery. Inability to belch (25.1%) and early satiety (29.3%) were the newly emerged symptoms. The percentage of patients with flatulence increased from 23.3% to 38.1% after LNF. There was no significant difference for dysphagia (25.6%) and diarrhea (15.3%) in the postoperative period. Of the patients, 15.3% had recurrent preoperative complaints and 9.8% were using drugs for that condition. Satisfaction level and preference for surgery were 82.8% and 91.6%, respectively. There was no significant difference in GERD-HRQL score according to body mass index.

CONCLUSIONS

This is the first study in which postoperative reflux-related and nonspecific gastrointestinal complaints are analyzed together for a long follow-up period. We found a significant decrease in many reflux-related and nonspecific symptoms. Although some disturbing complaints like inability to belch, early satiety, and flatulence emerged, the preference for surgery did not change.