View clinical trials related to Ehlers-Danlos Syndrome.
Filter by:The purpose of this study is to determine whether patients with vascular Ehlers-Danlos syndrome present significant and specific changes of arterial endothelial and smooth muscular cell signalling/secretion, in comparison to matched healthy volunteers and patients with spontaneous arterial dissections.
The Ehlers-Danlos syndrome (EDS) is a rare genetic disease caused by an anomaly of the connective tissue. This syndrome has different forms. Hypermobility type is the most common. It is characterized by generalized joint hypermobility, associated with a chronic pain syndrome. Pains appear as the most frequent demonstration of this syndrome, the worst lived and the most crippling. Faced with insufficient effect of drug treatment, other alternatives have been proposed to relieve these patients. Compression garments have been developed. They appear as medical devices targeted specifically for patients with hypermobility EDS type: in the symptomatic treatment of joint pain, in stabilizing joints by proprioceptive effect and of muscle globulization, and in the functional improvement. The VETCOSED study is a quasi-experimental study of type "Before / After", monocentric, open. The study is realized in the Centre Médico-Chirurgical et de Réadaptation des Massues - Croix Rouge Française de Lyon, in association with the Pôle Information Médicale Evaluation Recherche des Hospices Civils de Lyon. This study concerns about 40 patients with EDS hypermobility type, which will be followed for 8 weeks: 4 weeks during which they will wear a compression custom-made garment (short-sleeved vest CICATREX SED®), and 4 weeks during which they do not carry this garment. The main objective is to demonstrate the effectiveness of compression garments in the EDS hypermobility type, especially in terms of symptomatic improvement joint pain. The main outcomes expected of this study are: - an improvement of the power and the peaks of couple of muscles rotators of shoulders. - a decrease of the pains and the defects of articular stability of the shoulder - an improvement of the quality of life and the functional independence of these patients
The purpose of this study is to evaluate the safety and efficacy of custom made devices, Zenith t-Branch devices and physician modification of FDA approved off-the-shelf endovascular grafts in the treatment of patients with complex abdominal aneurysms, aortoiliac aneurysms, thoracoabdominal aneurysms and aortic arch aneurysms who (1) have anatomy not suitable for endovascular repair using grafts currently marketed in the United States,(2) are deemed unsafe to wait the required time necessary for commercial endograft manufacturing, and (3) are at high risk for open surgical repair. Amendment to the study has created a cohort open to people with connective tissue diseases such as Marfan, Ehlers-Danlos or Loey-Dietz syndromes to enroll in the trial. An additional amendment to the study allows the use of a custom made device to treat an aneurysm in the aortic arch.
The investigators want to inject insulin-like growth factor-I (IGF-I) into the patella tendon of Ehlers-Danlos patients and healthy controls to evaluate the response in collagen synthesis. Furthermore collagen synthesis is measured in muscle connective tissue and in skin. The hypothesis is that the connective tissue in Ehlers-Danlos patients is more compliant and poorer in collagen than healthy controls, but that collagen synthesis can be stimulated by IGF-I.
It is known that 33-50% of Classic and Hypermobile Ehlers-Danlos Syndrome patients eventually develop dysautonomia, otherwise known as "POTS" (Postural Orthostatic Tachycardia Syndrome). Some of these patients develop dysautonomia as a result of a retroflexed odontoid, Chiari 1 Malformation or cranial settling and the resulting basilar impression. Many Ehlers-Danlos patients suffer with the same symptomology with no evidence of a cause according to MRI imaging. It is the author's hypothesis that low-level External Communicating Hydrocephalus appears to be responsible for the constellation of autonomic and cranial nerve symptoms, and if present in the very young, an analysis of head circumference growth in the first 15 months of life should reflect abnormally rapid head growth, supporting this hypothesis.
The investigators propose that evidence of chronic cerebrospinal venous insufficiency (CCSVI) may be evident in the vasculature of the fundus. The investigators will be examining fundi of multiple sclerosis patients and Ehlers-Danlos patients to see if evidence of CCSVI can be found in these patients having high risk for CCSVI. The investigators will read the fundus photos, compared to age-matched normals in a "blind" fashion.
The National Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions (GenTAC) was initiated in 2006 by the National Heart, Lung, and Blood Institute (NHLBI) and the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS). GenTAC established a registry of 3706 patients with genetic conditions that may be related to thoracic aortic aneurysms and collected medical data and biologic samples. The study ended in September 2016. Data and samples are available from NHLBI and requests should be made to BioLINCC. See the NHLBI website for more information: https://www.nhlbi.nih.gov/research/resources/gentac/.
Brittle Cornea Syndrome and Ehlers-Danlos Syndrome (EDS) type VI are rare collagen-connective tissue disorders that predispose affected individuals to the development of perforated corneas from the mildest of eye trauma or even spontaneously. Clinical studies evaluating riboflavin-corneal crosslinking have found that it dramatically increases corneal rigidity. Given the success and safety of riboflavin crosslinking, the investigators believe that it can increase the corneal stability in patients affected these disseases, preventing perforation. It is furthermore possible, that riboflavin crosslinking will allow corneal transplants to successfully be performed on blind eyes that have already perforated and opacified. The purpose of the study is to determine whether corneal crosslinking can be safely performed on individuals with Brittle Cornea Syndrome or Ehlers-Danlos Syndrome type VI.
Arterial stiffness is associated with increased risk of cardiovascular events and death. Most of existing technique need dedicated device for arterial stiffness evaluation and indirect calculation of intra arterial pressure. Supersonic Shear Imaging (SSI) is a novel non-invasive technique based on remote palpation of biological tissues that can image with very high temporal resolution (up to 10,000 images/s) and quantify the local viscoelastic properties of tissues. The investigators goal was to apply this SSI technique for arterial stiffness evaluation and local pulse wave velocity (PWV) calculation. As a first step, the primary goal of this study is to establish normal values of local pulse wave velocity and arterial stiffness (carotid and femoral) by SSI on hundred healthy volunteers.
Background: - Heritable disorders of connective tissue are genetic conditions that can affect the skin and other parts of the body. They are related to mutations in genes that are responsible for building tissues. The symptoms differ among disorders. Researchers want to study which genes may be responsible for different disorders. They will be performing a long-term (up to 10 years) study and a study that requires a single visit. These studies will look at how these disorders affect the body and what genes may cause these conditions. Objectives: - To perform one-time and long-term studies of people who have heritable disorders of connective tissue. Eligibility: - Individuals at least 2 years of age who have or may have a heritable disorder of connective tissue. Design: - Participants will be screened with a physical exam, medical history, and blood samples. - Participants will be on one of two parts of this study. The longitudinal arm will require long-term study over about 10 years. The mutational analysis arm will involve a single visit. - Longitudinal arm participants must be at least 12 years of age. They will have study visits at regular intervals for up to 10 years. The tests given at these visits may include all or some of the following: - Blood, saliva, urine, and skin samples - Heart and lung function tests - Magnetic resonance imaging scans of the neck, chest, spine, and abdomen - Other imaging studies such as x-rays, bone density scans, and ultrasounds - Questionnaires about sleep, pain, and quality of life - Photographs of affected areas. - Mutational analysis arm participants will have a single study visit. They will provide blood and saliva samples. They will provide tissue from a skin biopsy. They will also let the researchers take photos of any affected body parts. They will complete questionnaires about sleep, pain, and quality of life.