The Role of Biologic Mesh and Fundoplication in the Surgical Management of Hiatal Hernias: A Multicenter Evaluation.

INTRODUCTION: Hiatal hernia repair is associated with substantial recurrence of both hiatal hernia and symptoms of gastroesophageal reflux (GER). While small randomized controlled trials demonstrate limited differences in outcomes with use of mesh or fundoplication type, uncertainty remains. METHODS: A multicenter, retrospective review of patients undergoing surgical treatment of hiatal hernias between 2015 and 2020 was performed. Patients with mesh and with suture-only repair were compared, and partial versus complete fundoplication was compared. Primary outcomes were hernia recurrence and occurrence of postoperative GER symptoms and dysphagia. Multivariable regression was performed to assess the effect of each intervention on clinical outcomes. RESULTS: A total of 453 patients from four sites were followed for a median (IQR) of 17 (13) months. On multivariate analysis, mesh had no impact on hernia recurrence (odds ratio 0.993, 95% CI: 0.53-1.87, p = 0.982), and fundoplication type did not impact recurrence of postoperative GER symptoms (complete: odds ratio 0.607, 95% CI: 0.33-1.12, p = 0.112) or dysphagia (complete: odds ratio 1.17, 95% CI: 0.56-2.43, p = 0.677). CONCLUSION: During hiatal hernia repair, mesh and fundoplication type do not appear to have substantial impact on GER symptoms, dysphagia, or hernia recurrence. This multicenter study provides real-world evidence to support the findings of small RCTs.

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.

Evaluation of ICARUS Guidelines and Recommendations Not Supported by Randomized Controlled Trials.

BACKGROUND: The ICARUS guidelines are a systematic review and Delphi process that provide recommendations in the treatment and management of patients with gastroesophageal reflux disease (GERD). Many of the recommendations were supported by randomized trials; some were not. This study assesses guidelines with limited evidence and weak endorsement. METHODS: Four ICARUS guidelines were chosen: the role of fundoplication for patients with BMI > 35, regurgitation, chest pain, and extra-esophageal symptoms. A multicenter database of patients undergoing fundoplication surgery for GERD between 2015 and 2020 was used. Outcomes assessed were anatomic failure and symptom recurrence. Multivariable regression was performed. RESULTS: Five institutions performed a fundoplication on 461 patients for GERD with a median of follow-up of 14.7 months (IQR 14.2). On multivariate analysis, patients with the chosen pre-operative comorbidities achieved comparable post-operative benefits. Patients with a BMI > 35 were not more likely to experience anatomic failure. Patients with pre-operative regurgitation had similar symptom recurrence rates to those without. Patients with non-cardiac chest pain had comparable rates of symptom recurrence to those without. Reporting a pre-operative chronic cough attributable to reflux was not associated with higher rates of post-operative symptom recurrence. DISCUSSION: Among the ICARUS guidelines and recommendations, a small proportion was lacking evidence at low risk for bias and endorsement. The results of this multicenter study evaluated outcomes of patients with various pre-operative conditions: BMI > 35, chest pain attributable to reflux, extra-esophageal symptoms attributable to reflux, and regurgitation. Our findings endorse patients with these characteristics as candidates for anti-reflux surgery.