View clinical trials related to Constriction, Pathologic.
Filter by:This is a pilot randomised control study assessing the feasibility and effectiveness of a perioperative multi-component intervention aimed at reducing adverse hospital events and improving functional outcomes in patients with acute decompensated aortic stenosis undergoing urgent transcatheter aortic valve implantation compared to standard care. The intervention will consist of physical rehabilitation, delirium prevention, nutritional supplementation and anaemia correction (where indicated). The primary objective is to determine the feasibility and safety of delivering this intervention Secondary objectives include investigating the impact on adverse hospital events such as hospital-acquired disability and post-TAVI delirium, and on health-related quality of life and functional recovery following TAVI.
This retrospective, observational, cohort study evaluates the treatment management, long-term outcomes and survival analyses in patients hospitalized in the Intensive Care Unit with a diagnosis of Post-Intubation Tracheal Stenosis (PITS) between 1st June 2016 and 1st June 2022. The study emphasizes the role of bronchoscopic interventions in treatment management and the effective and efficient use of health services.
The purpose of this study is to explore the efficacy and safety of endoscopic scissors cutting nasobiliary ducts in the treatment of malignant hilar biliary tract stenosis
This is a prospective, multicentric, comparative, randomised-controlled study to evaluate the safety and efficacy of the Facet Fixation implant. The main objective is to evaluate the effectiveness of spinal decompression associated with FFX® implants compared to spinal decompression alone in treating lumbar spinal stenosis after 2 years of treatment.
The clinical trial aims to evaluate the efficacy and safety of acupuncture in alleviating neurogenic claudication symptoms among patients with degenerative lumbar spinal stenosis (LSS).
This multi-center, prospective, cluster-randomized controlled trial will evaluate Mpirik automated notifications as an intervention to support identification and evaluation of patients possibly indicated for Aortic Valve Replacement (AVR). This study will evaluate the impact of Mpirik automated notifications on: (1) AVR utilization (including time to AVR); and (2) multidisciplinary heart team clinic evaluation (including time to evaluation) for patients with definitive or possible severe AS on echocardiogram. These endpoints will also be examined within and between assigned groups according to race, ethnicity, sex, and geography. The primary question that will be answered: Do automated alerts sent to clinical providers decrease under-treatment of severe aortic stenosis? The study will compare the rate of clinical follow-up and aortic valve surgery in a control group (no alerts sent) to a treatment group (alerts sent to an appropriate care provider).
The goal of this clinical trial is to demonstrate the safety and efficacy of Solaris DE Endoprosthesis in the treatment of stenosis or occlusion within the outflow circuit of the dialysis access including arteriovenous (AV) fistula and synthetic AV graft. Participants will be treated with Solaris DE Endoprosthesis. Researchers will compare the treatment with investigational product to Percutaneous Transluminal Angioplasty (PTA) alone within the AV fistula cohort in order to demonstrate superiority of Solaris DE.
Conventional peroral methods to visualize biliary strictures are not feasible in some patients with altered anatomy or biliary obstruction, and percutaneous transhepatic cholangioscopy can be used as an alternative procedure. This study aimed to retrospectively review the use of percutaneous transhepatic cholangiography using the SpyGlass DS technology (S-PTCS) during a 5-year period at a Danish tertiary referral center.
Lumbosacral spinal stenosis (LSS) is a leading cause of limited mobility, reduced independence, and poor health outcomes in older adults, and is very common in older adult Veterans. Several years ago, major research studies indicated that surgery for LSS was more effective than usual (medical) management. Nonetheless, there are many patients for whom surgery is not the ideal therapy. There have been reports that modifications in daily activities including temporary use of a modified rolling walker and changes in sleep positioning may help relieve LSS. The investigators have assembled a VA team to study this carefully. The investigators will recruit a small group of older adult Veterans with LSS to try out this program; the investigators will monitor them closely for relief of their symptoms and improvements in walking. The investigators will, as part of this small study, try to understand potential barriers to use of this therapy. The investigators will interview the Veterans and healthcare providers to identify problems that may arise in trying this therapy. If this small study works, the investigators plan to expand the effort.
Background: Large vessel carotid stenosis represent significant cause of ischaemic stroke. Indication for surgical revascularisation treatment relies on severity stenosis and clinical symptoms. Mild clinical symptoms such as transient ischemic attack, amaurosis fugax or minor stroke preceded large strokes in only 15% of cases. Aim: The aim of this prospective study is to evaluate whether retinal perfusion is impacted in significant carotid stenosis. Automated retinal oximetry could be used to better evaluate perfusion in post-stenotic basin. The investigators presume the more stenotic blood vessel, the more reduced retinal perfusion is resulting in adaptive changes such as higher arteriovenous saturation difference due to greater oxygen extraction. This could help broaden the indication spectrum for revascularisation treatment for carotid stenosis. Methods: The investigators plan to enroll 50 patients a year with significant carotid stenosis and cross-examine them with retinal oximetry. Study group will provide both stenotic vessels and non-stenotic vessels forming the control group. Patients with significant carotid stenosis will undergo an MRI examination to determine the presence of asymptomatic recent ischaemic lesions in the stenotic basin, and the correlation to oximetry parameters. Statistics: Correlation between the severity of stenosis and retinal oximetry parameters will be compared to the control group of non-stenotic sides with threshold of 70%, respectively 80% and 90% stenosis. Data will be statistically evaluated at the 5% level of statistical significance. Results will be then reevaluated with emphasis on MRI findings in the carotid basin. Conclusion: This prospective case control study protocol wil be used to launch a trial assessing the relationship between significant carotid stenosis and retinal perfusion measured via automated retinal oximetry.