Clinical Research Directory

Esophagogastric Junction Distensibility During Hiatal Hernia Repair

The investigators aim to ascertain the effects of hiatal hernia repair and fundoplication on the distensibility of the esophagogastric junction (EGJ) as measured by FLIP topography/impedance planimetry. The investigators also aim to assess for any correlation between values of EGJ distensibility and GERD related quality of life (QOL) and dysphagia scores.

Image-Guided Herniorrhaphy Study

This pilot clinical study will evaluate the safety and effectiveness of a new image-guided, needle-based approach for repairing abdominal or groin hernias in adults who are unable or unwilling to undergo traditional open or laparoscopic surgery. The technique uses ultrasound and, when needed, CT imaging to guide a hollow needle preloaded with barbed suture through the skin to close the hernia defect without large incisions or general anesthesia. Each participant will undergo one image-guided procedure and will be followed for eight months to assess complications and changes in hernia-related quality of life. Approximately thirty participants will be enrolled. The study aims to determine whether this minimally invasive approach is safe, feasible, and capable of improving hernia symptoms enough to justify a larger clinical trial

Evaluating Clinical Hiatal Hernia Outcomes Using OviTex®

This study will evaluate hiatal hernia recurrence rate and post-operative complications following the use of OviTex Core Resorbable or OviTex 1S Resorbable.

Impact of Biosynthetic Mesh on Paraesophageal Hernia Repair

The aim of this study is to find out if using a certain kind of mesh can reduce the chances of hiatal hernias coming back after anti-reflux surgery. Participants undergoing antireflux surgery will be assigned to one of two groups, a group that has surgery with mesh, or a group that has surgery without mesh.

Multicenter Single-Blind RCT of CTIF Versus LNF For Treatment of GERD in Patients Requiring Hiatal Hernia Repair

This single-blind randomized control study will follow 142 subjects across 7 sites randomized on a 1:1 ratio to compare treatment efficacy and safety between TIF and LNF in GERD patients with hiatal hernia undergoing hernia repair.

Reducing Postoperative Opioids in Patients Undergoing Laparoscopic Hiatal Hernia

This is a prospective randomized, double-blinded, controlled trial that will enroll 75 subjects undergoing laparoscopic hiatal hernia repair surgery. Participants who meet eligibility criteria will be randomized in a 1:1 ratio to receive either the opioid sparring anesthesia protocol (OSA) or the opioid based anesthesia protocol (OBA). The purpose of this study is to investigate if an opioid sparring protocol for laparoscopic hiatal hernia repair will reduce opioid consumption during discharge. Other outcomes include: postoperative VAS scores (PACU arrival, PACU discharge, hospital discharge), total in hospital opioid consumption, PACU length of stay, incidence of postoperative nausea and vomiting (PONV in PACU, postoperative day 1, during hospital stay), rehospitalization rate, rate of reoperation, rate of emergency room visit, surgeon satisfaction, and hospital cost differential.

Esophageal Cancer Risk Registry

The purpose of this study is to identify markers in the blood and tissue that could indicate risk factors for the development and progression of esophagus cancer. This research aims to collect medical history, blood, and tissue samples from patients who present with an esophageal disorder. Identifying genetic and behavioral risk factors involved in the development of esophageal cancer might allow for early detection and prevention. Survival and an opportunity for a cure with esophageal cancer will depend greatly on the stage of diagnosis. Tumors can develop changes in their genetic (hereditary) make-up, and these changes can sometimes be seen in normal tissues before the development of cancer. These genetic (hereditary) changes can serve as tumor markers and can be detected using methods that study changes in genetic material like DNA and RNA. The analysis of proteins can provide additional information. By identifying changes in these molecules that are different or altered in cancer, the investigators can use methods and tests for the detection of these changes.

Laparoscopic Toupet's Fundoplication: Is it Proper Solution of Radiological Negative, Endoscopically Positive Hiatal Hernia Patients

This study aims to assess the feasibility and effectiveness of laparoscopic toupet fundoplication (LTF) for treating gastroesophageal reflux disease (GERD) symptoms and disease-specific Quality of Life (QoL).

Nissen Versus Dor Hiatal Hernia Repair

Hiatal hernia can present with a wide range of symptoms. An usual surgical repair technique usually includes Nissen fundoplication, while other procedures are less frequently employed. However, recurrence and reoperation rates remain high. This randomized controlled trial aims to compare the efficacy of Nissen and Dor fundoplication in preventing hiatal hernia recurrence and reducing the risk of reoperation Participants undergoing minimally invasive hiatal hernia repair will be randomly assigned to either Nissen or Dor fundoplication. Postoperatively at 12 months, anatomical recurrence rates based on computed tomography scans and symptomatic recurrence rates, anti-reflux medication use, GERD-related quality of life, and dysphagia symptoms will be assessed. A subsequent long-term follow-up study will conducted afterwards utilizing national registry data to evaluate reoperation rates and anti-reflux medication use

Comparative 3-year Study of Nissen-sleeve vs. Sleeve Plus Cruroplasty in Obese Patients With Hiatal Hernia

The success of laparoscopic sleeve gastrectomy (LSG) is not only due to its proven efficacy in the treatment of obesity and associated to comorbidities in the short and long term, but also because it is considered as less technically complicated compared to other malabsorptive procedures. Unfortunately, the main long-term side effect of LSG appears to be the development of severe gastroesophageal reflux (GERD). This problem is aggravated by the concomitant presence of a hiatal hernia at the time of surgery. Indeed, by causing laxity of the lower esophageal sphincter (LES), the hiatal hernia reduces the barrier functions of the esophageal-gastric junction against the reflux of gastric contents. The classic combination of sleeve and hiatal hernia treatment by cruroplasty gives contradictory results and several surgeons prefer to perform only the sleeve without addressing the hiatal hernia especially if it is small (\<4 cm). For this reason a modification of the usual surgical technique of LSG has been proposed by adding a Nissen fundoplication-Nissen Sleeve (NS). The intentions of this technique were to minimize the rate of postoperative GERD especially for patients with hiatal hernia, to protect the staple line of the angle of His, and finally to provide a safe and effective alternative for patients with a contraindication to LRYGB due to GERD. Although the first results of the technique are encouraging, the realization of the Nissen valve remains a sensitive technical point that can transform a relatively simple procedure like LSG into a more complex procedure like NS. The only test able to directly identify and classify gastric reflux is pH-metry with or without esophageal manometry. Unfortunately, especially due to the difficulty of access to the examination, there are no studies with solid scientific bases that identify the correct conduct to adopt in the case of an obese patient with a hiatal hernia (with or without preoperative reflux). The main objective of this study is to evaluate the occurence or worsening of GERD at 3 years following a Nissen-sleeve vs. sleeve plus cruroplasty intervention in patients with obesity and hiatal hernia.

A Prospective Randomised Multi - Center Trial on the Repair of Large Hiatal Hernias: Absorbable Mesh vs. Pledgeted Sutures vs. Sutures Only

A prospective randomised multi - center trial on the repair of large hiatal hernias with sutures versus pledgeted sutures versus absorbable mesh The primary objective of the present trial is to compare the hiatal hernia recurrence rate between three different methods of cruroplasty in large hiatal hernias: hiatal closure with sutures versus pledgeted sutures versus absorbable mesh (Phasix™ST mesh). The duration of the study is not limited and depends on the number of cases planned. After enrollment in the study, patients will be followed - up with standardized questionnaires and gastroscopy at 6 months, 1 year, 3 years and 5 years after surgery.

Sutures Versus Polyglactin Mesh in Hiatal Hernia Repair

Paraesophageal hernia causes pain, heartburn, regurgitation, anemia and in extreme, life-threatening strangulation. For symptomatic patients, laparoscopic surgery is offered which includes hiatal defect closure and antireflux surgery. However, recurrence rates are high between 12 and 42%. In order to reduce recurrences, mesh has been used with various materials and techniques with conflicting results. Non-absorbable mesh has been linked with adverse events including erosion of esophageal wall. Traditionally used biological mesh materials are expensive and therefore problematic in routine use. Use of polyglactin (Vicryl®) mesh, which degrades in 6-8 week, has been reported in paraesophageal hernia surgery. Previously, no randomized controlled trial comparing sutures only and polyglactin mesh has been performed. In this trial, the aim was to randomize total of 110 patients to receive sutures only or mesh repair. Primary outcome was recurrence of paraesophageal hernia at 6 months after the repair based on computed tomography scan. Secondary outcomes included symptomatic recurrences, reoperation rate, quality of life, reoperations up to 20-years after surgery and use of proton pump inhibitors up to 20-years after surgery.