30 Clinical Trials for Various Conditions
A prospective, retrospective, non-randomized, multicenter study with two independent hernia study cohorts (Ventral / Incisional Hernia Repair and Diaphragmatic / Hiatal Hernia Repair). The primary objective of this study is to collect GORE® ENFORM Biomaterial product commercial-use data on device functional performance and short-term patient experience.
The Mayo Clinic Foregut Surgery Report Card Questionnaire has been created in order to have a consistent evaluation tool for patients undergoing foregut surgery in order to standardize and validate outcome measures.
The goal of this study is to establish the face, content, discriminant and predictive validity of the Virtual Laparoscopic Hiatal Hernia Simulator (VLaHHS). The study population includes GS residents. The goal of developing scenarios for the simulator will be accomplished first and establishing the validity of the VLaHHS will be conducted in three phases after that: 1. Needs assessment survey of current practices in laparoscopic hiatal hernia repair a. Development of scenarios and metrics for the VLaHHS b. Assessment of validity of metrics developed for VLaHHS 3) Assessment of validity of VLaHHS 1. Phase I - Face and content Validity Assessment of VLaHHS 2. Phase II - Discriminant Validity Assessment of VLaHHS 3. Phase III - Learning Curve, Retention and Transfer Assessment (predictive validity) of VLaHHS Part 3- Phase III of this study is the interventional portion while rest of the parts and phases do not involve an intervention. The goal of this phase of the study is to establish the learning curve and predictive validity of the VLaHHS. The hypothesis is that the subject trained in VLaHHS will improve their skills compared to control with no training and show better transfer of skills on to an actual procedure.
The purpose of the study is to evaluate the success of hiatal hernia repairs in patients with large (\>5cm) or paraesophageal hernias when Ovitex LPR mesh used during the repair.
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.
Patients often present with a significant burden of fibrosis upon diagnosis as there is interest in identifying these individuals earlier in their disease course (i.e., "subclinical disease") where targeted treatments and modification of risk factors may curb their progression to fulminant fibrosing ILD. The investigators have investigated with computed tomography (CT) methods such as interstitial lung abnormalities (ILA) and high attenuation areas (HAAs) that may detect early radiological signs of interstitial lung inflammation and scarring and novel modifiable risk factors that contribute to its pathogenesis. Among adults without clinically-diagnosed pulmonary fibrosis, those with a hiatal hernia will have higher levels of pepsin in bronchoalveolar lavage fluid (BALF) compared with adults without a hiatal hernia. Secondarily, examinination on whether there are differences in other reflux contents from BALF including total bile, and peripheral biomarkers related to lung injury and fibrogenesis which include matrix metalloproteinase-7 (MMP-7), vascular cell adhesion molecule 1 (VCAM-1), and cancer antigen 125 (CA-125).
Rationale: Gastroesophageal reflux disease (GERD) is a common disease caused by a dysfunctional lower esophageal sphincter and an abnormal esophageal hiatus or hiatal hernia. Approximately 30% of large hiatal hernias will recur after surgery, in part due to weak connective tissue at the hiatus. Platelet rich plasma (PRP) is a promising autologous therapy that may address this shortcoming by substantially enhancing wound healing of the hiatus after repair. Intervention: PRP will be applied to mesh used in hiatal hernia repair. Objectives: The objective of this study is to determine the efficacy of PRP in hiatal hernia compared to traditional hernia repair without PRP. Study population: 150 patients 18 years and older with large (\>5cm) paraesophageal hernias. Study methodology and study arms: a 1:1 allocation ration will be used to randomly assign 75 patients to the experimental arm (PRP with mesh) and 75 patients to the control arm (mesh only). Study outcomes: The primary outcome will be 1-year postoperative hernia recurrence based on video esophagram and/or upper endoscopy. The secondary outcome will be GERD-Health Related Quality of Life (GERD-HRQL) scores and dysphagia scores at 6 and 12 months. Follow-up: Patients who undergo fundoplication and hiatal hernia repair with mesh are seen in clinic for follow-up at two weeks, six weeks, six months, one year, and annually thereafter. Video esophagram or upper endoscopy will be performed at 1 year after surgery to assess the primary outcome. The investigators secondary outcome of reduction in GERD-HRQL score will be determined by a difference in the GERD-HRQL score from the preoperative score to the postoperative scores taken at 6 months and 1 year. The investigators secondary outcome of dysphagia will be determined by EAT-10 scores taken at 6 months and 1 year. Statistics/Analysis: Descriptive statistics will be used. Intention to treat and per protocol analyses will be performed. Frequentist and Bayesian statistical analyses will be used to determine statistically and clinically important outcomes.
Referred shoulder pain (pain felt when the problem is actually in a different location) is very common after laparoscopic (small, narrow cut) hernia surgery. The purpose of this study is to look at the effect of a simple back massager, which can be readily purchased online or in a store, in addition to the use of standard pain medications.
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.
The cohort registry is both retrospective and prospective, multicenter surveillance of subjects who underwent a prior hiatal hernia repair and Magnetic Sphincter Augmentation or fundoplication construction more than 2 years prior to initial study visit.
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.
Investigator will identify a consecutive cohort of patients who have undergone a hiatal hernia repair and are at least 6 months post index procedure.
The investigators prospectively studied ninety nine GERD patients following laparoscopic hiatal surgery combined with transoral incisionless fundoplication at two community hospitals. General surgeons and gastroenterologists participated in the study. GERD questions were recorded before and at six and twelve months.
Miromatrix Medical has developed MIROMESH® - a new, noncrosslinked, acellular mesh derived from the highly vascularized porcine liver. MIROMESH received FDA 510(k) clearance with an indication for reinforcement of soft tissue on March 31, 2014 under K134033. This study will serve to provide clinicians with high-quality clinical data in order to provide them with a higher degree of confidence when selecting MIROMESH for hiatal hernia repair.
To study the long term outcome of Laparoscopic Hiatal Hernia Repair with human acellular dermal matrix Alloderm (LifeCell, Branchburg, NJ) mesh.
This is an investigator initiated pilot study to observe the short-term outcomes (a follow-up period of up to six months) of patients who undergo a laparoscopic paraesophageal Hiatal hernia (PEH) repair using the Veritas® Collagen Matrix brand biological mesh. This is a preliminary study at the University of Washington. A PEH occurs when the stomach protrudes through the diaphragm next to the esophagus. The chance of recurrence of a Hiatal hernia after laparoscopic PEH repair is between 20-40% within 6 months.During laparoscopic PEH repair, a mesh-type product is used as a scaffold. The mesh serves as a reinforcing material during the surgical repair. It is cut to the appropriate size needed for the hernia and sutured to the surrounding diaphragmatic tissue. There are many different types of meshes available on the market, and vary in the degree of manageability, strength, and adherence. Although surgical meshes work on the same principal, the variance between materials may affect patient outcomes. There is evidence that a biologic mesh, specifically one derived from Small Intestinal Submucosa (SIS), decreases the short-term (6-month) recurrence rates compared to a synthetic mesh or another type of biologic mesh. A biologic mesh, serving as a scaffold, will be replaced by the patient's own tissue after about 6 months. Theoretically, this would prevent the possible complications associated with synthetic mesh including mesh erosion into the esophagus or stricture of the esophagus. There are some case series showing similar short-term results between the different biologic meshes, but there is no direct comparative data.
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.
Prospective, single-arm, open-label study to evaluate re-occurrence and quality of life in subjects undergoing primary Hiatal hernia repair using SurgiMend biological mesh. Up to 15, with a target of 10, subjects are planned to be enrolled at one site. All subjects will receive the SurgiMend mesh during surgery. Data collected will be compared to historical data. Subjects will complete a pre-operative visit. After surgery, in addition to any standard of care visits, subjects will complete 3- and 6-month follow-ups involving a phone QOL survey and will have an upper GI series at 6 months.
The investigators propose a randomized, single blinded controlled trial to compare the use of synthetic versus biologic mesh in hiatal hernia repair, two currently accepted standard of care surgical modalities. The investigators hypothesize that use of synthetic mesh will have lower recurrence at these time points compared to use of biologic mesh.
The study will examine potential biological and genetic mechanisms leading to hiatal and paraesophageal hernia formation in predisposed individuals. It is expected that these patients will have defects in the normal production and maturation of collagen and other connective tissue proteins, thus leading to weakness in the diaphragm that may allow for spontaneous herniation. Comparison of tissue and blood samples from these patients (study group) will be made to those from individuals undergoing lower esophageal surgery who have not developed a concurrent hernia (i.e. esophageal myotomy for achalasia and laparoscopic gastric bypass or laparoscopic adjustable gastric banding for morbid obesity - control group).
In 2006 this research group reported their initial findings of a multi-center prospective trial comparing primary repair and primary repair buttressed with a biologic mesh made from porcine small intestinal submucosa (SIS). We were able to accrue 108 patients from 7/2002-3/2005 and followed each patient over 6 months and performed an UGI to check the durability of the repair and rule out a recurrence. The results suggested a significant benefit for the use of SIS mesh in the short-term, with the primary group having a 26% recurrence rate and the mesh group a 9% recurrence rate. While these results are encouraging, it is important to know what is the durability and the longer term benefits of the use of SIS mesh. For this reason we propose a follow-up of the original study patients with the same outcome measures (symptom questionnaire, SF-36, and UGI). This should give us a very good idea about the long-term success of laparoscopic PEH repair with primary and SIS mesh.
This study evaluates the effect of anterior gastropexy (one or more sutures fixing the stomach to the inner abdominal wall) on improving durability of paraesophageal hernia repair. Half of participants will receive anterior gastropexy, while the other half will not. The hypothesis is that anterior gastropexy will help to prevent paraesophageal hernias from recurring.
Prospective registry comparing outcomes after laparoscopic treatment of gastroesophageal reflux disease and hiatal hernia.
The objective of this study is to examine the safety and efficacy of porcine acellular dermal matrix mesh (Strattice; LifeCell Corp., Branchburg, NJ) in crural reinforcement of laparoscopic large paraesophageal hernia repair.
The purpose of this study is to understand the genetic causes of congenital diaphragmatic disorders (CDD), namely congenital diaphragmatic hernia (CDH), eventration and hiatal hernia. Specifically, the investigators plan to: 1. Ascertain informative families and sporadic cases with congenital diaphragmatic disorders and obtain appropriate phenotypic data and genetic material (peripheral blood and/or diaphragm tissue sample). 2. Localize the gene(s) for CDD to specific chromosomal segments using linkage analysis, and determine the role of somatic mutations in CDD. 3. Isolate and characterize genes involved in the pathogenesis of CDD. 4. Develop molecular markers that will facilitate accurate diagnosis (including prenatal diagnosis) and permit correlation of phenotypic variation with specific mutations. 5. Compare RNA-sequencing from tissue samples of children without CDH to those children with CDH.
The objective of the study is to evaluate the relative merits, safety and effectiveness of the EsophyX transoral device in performing an advanced TIF procedure in patients with "troublesome symptoms" as defined by the Montreal consensus definition while on PPIs compared with sham and placebo controls.
The study objective is to evaluate the safety and efficacy of TIF among a broad range of GERD patients treated in routine clinical practice at multiple centers across the United States.
This study compares complete dissection of the tissue around the lower esophagus to no dissection of these tissues during laparoscopic fundoplication in children.
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.
This study will be a prospective observation study of the use of PoRSHA for repair in patients with challenging paraesophageal hernias. One of the most challenging problems facing foregut surgeons is the large and complex paraesophageal hernia (PEH) repair in the older patient. The investigator has demonstrated good outcomes and durability with the initial use of a novel permanent autologous vascularized biologic fascial flap to reconstruct the diaphragmatic hiatus following standard hiatal hernia repair in selected patients. This technique is called a posterior rectus sheath flap hiatal augmentation or PoRSHA, which is performed to enhance the hiatal repair for large (type III and IV) and recurrent PEH. The investigator believes by using the patient's autologous vascularized and peritonealized fascia at the hiatal defect, PoRSHA could increase the strength and restore the hiatal complex properties in ways that synthetic mesh, or a primary repair cannot. The hypothesis is that PoRSHA is a unique technique that has the potential to supplant current approaches to primary hiatal closure in select cases. By augmenting the hiatal closure with a vascularized fascial sheath, PoRSHA provides the tensile strength needed for the attenuated defects in large and complex PEHs.