Clinical trials: Stenosis
Microvascular Dysfunction, Hypertrophic Obstructive Cardiomyopathy
Association Between Microvascular Resistance and Outcomes in Patients With Obstructive Hypertrophic Cardiomyopathy
About 60% of patients with hypertrophic cardiomyopathy have microvascular dysfunction. Microvascular dysfunction is directly related to prognosis in hypertrophic cardiomyopathy.
- Conditions
- Microvascular Dysfunction, Hypertrophic Obstructive Cardiomyopathy, Microcirculation Resistance
- Trial name
- NCT05671367
- Where
- China
- Volunteers
- 340 people
- Sponsor
- China National Center for Cardiovascular Diseases
Aortic Valve Insufficiency, Aortic Stenosis
Three Dimensional Imaging and Wireless Technologies to Enhance Medical Care in Space
NASA has outlined the most urgent threats to life and health in manned spaceflight. One of the threats is the risk of trauma and acute medical problems.
- Trial name
- NCT00598767
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- The Cleveland Clinic
Lumbar Spinal Stenosis
Quantitative Evaluation of Motor Function Before and After Surgery for Degenerative Lumbar Spinal Stenosis
Low back pain is a leading cause of medical consultations in France and in other industrialized countries. Although spinal surgery is a recognized treatment, to date, its impact has only been assessed using subjective or…
- Trial name
- SPEED (NCT03194607)
- Testing
- Functional walk tests, 3D analysis of locomotion and posture, questionnaires
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Centre Hospitalier Universitaire Dijon
Back Pain, Fusion of Spine, Lumbar Region
The Comparison of Postoperative Pain After Lumbar Fusion Surgery in Intravenous Patient-controlled Analgesia Between Conventional Mode and Optimizing B.I Mode With 'PAINSTOP' Equipment
The postoperative pain of lumbar fusion surgery is very severe that it is necessary to use additional analgesics as well as a patient controlled analgesia (PCA).
- Conditions
- Back Pain, Fusion of Spine, Lumbar Region, Spinal Stenosis
- Trial name
- NCT03047044
- Testing
- Optimizing basal infusion (B.I), Conventional PCA mode
- Where
- South Korea
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Degenerative Disc Disease, Degenerative Spondylolisthesis
Natural Matrix Protein™ (NMP™) Fibers in Cervical and Lumbar Interbody Fusion
The aim of this study is to evaluate the effectiveness and safety of Natural Matrix Protein™ (NMP™) fibers when used in cervical or lumbar interbody fusion in patients with degenerative disc disease (DDD), spinal stenosis…
- Conditions
- Degenerative Disc Disease, Degenerative Spondylolisthesis, Spinal Stenosis
- Trial name
- NCT06000319
- Testing
- Natural Matrix Protein (NMP) Fibers, Lumbar interbody fusion, Cervical interbody fusion
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Induce Biologics USA Inc.
Small Aortic Annulus, Aortic Root Enlargement Procedure
Modified Aortic Root Enlargement Procedure
This study is a prospective observational clinical trial, in which severe AS patients aged 50-70 years with SAA choose modified ARE or TAVR according to their wishes to investigate the safety and efficacy of modified ARE; Compare…
- Trial name
- NCT06517537
- Where
- China
- Volunteers
- 64 people
- Sponsor
- China National Center for Cardiovascular Diseases
Degenerative Disc Disease, Isthmic-lytic Spondylolisthesis
Efficacy of Using Solum IV and BMC With GFC in TLIF
The purpose of this study is to examine the efficacy of using Solum IV and bone marrow concentrate with general fluid concentrate in Transforaminal Lumbar Interbody Fusion (TLIF).
- Conditions
- Degenerative Disc Disease, Isthmic-lytic Spondylolisthesis, Degenerative Spondylolisthesis, Spinal Stenosis
- Trial name
- NCT03223701
- Testing
- Solum IV, Bone Marrow Concentrate with general fluid concentrate (GFC) in Transforaminal Lumbar Interbody Fusion
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Seton Healthcare Family
Carotid Artery Stenosis
The Correlation Between the Enzyme Paraoxigenase 1 (PON1) to Carotid Artery Atheromatous Plaque
The objective of the research, is to examine the hypothesis, that the enzyme paraoxygenase 1 ( PON1) can influence carotid artery's atherosclerotic plaque content and stability, and its relation to plasma's enzyme concentration.
- Trial name
- NCT01440036
- Testing
- Carotid endarterectomy
- Where
- Israel
- Volunteers
- 100 people
- Sponsor
- Ziv Hospital
Aortic Valve Stenosis
Determination of the Acute Effects of Aortic Stenosis on Coronary Artery Haemodynamics
Narrowing of the main valve which controls blood leaving the heart leads to a marked increase in death. To overcome this narrowing the heart muscle thickens abnormally and contracts more vigorously.
- Trial name
- NCT01118442
- Where
- United Kingdom
- Volunteers
- 6 people
- Sponsor
- Imperial College London
Intracranial Atherosclerosis ICAS, Hemodynamic
Digital Angiography-Derived Fractional Flow Assessment for Intracranial Stenosis
The goal of this observational study is to learn whether a digital angiography derived fractional flow reserve (DPR) measurement can improve the prediction of stroke risk in adults with symptomatic intracranial atherosclerotic…
- Conditions
- Intracranial Atherosclerosis ICAS, Hemodynamic, Stroke
- Trial name
- CASSISS-DPR (NCT07309705)
- Testing
- Standardized medical therapy targeting vascular risk factors and stroke prevention
- Where
- China
- Volunteers
- 400 people
- Sponsor
- Xuanwu Hospital, Beijing
Symptomatic Severe Aortic Stenosis
Early Feasibility Study (EFS) of Abbott's Balloon-expandable (BE) TAVI System for the Treatment of Severe, Symptomatic Aortic Stenosis
The purpose of this study is to evaluate the safety and functionality of Abbott's BE TAVI system for the treatment of patients with symptomatic severe aortic valve stenosis.
- Trial name
- NCT07116551
- Testing
- Abbott BE TAVI System
- Where
- 5 sites in United States, France
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Devices
Aortic Valve Stenosis
Non-Contrast Magnetic Resonance Angiography Assessment of Patients Referred for Transcatheter Aortic Valve Implantation
The overall objective of this proposal is to examine the feasibility and accuracy of non-contrast magnetic resonance angiography (MRA) to comprehensively evaluate individuals referred for transcatheter aortic valve implantation…
- Trial name
- NCT02007967
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- University of Michigan
Hypertrophic Cardiomyopathy
Ranolazine for the Treatment of Chest Pain in HCM Patients
The purpose of RHYME is to evaluate the safety and efficacy of ranolazine in Hypertrophic Cardiomypathy patients with chest pain or dyspnea despite treatment with standard medical therapy.
- Trial name
- RHYME (NCT01721967)
- Testing
- Ranolazine
- Where
- United States
- Volunteers
- 14 people
- Sponsor
- Duke University
Moderate Aortic Valve Stenosis, Moderate Aortic Valve Regurgitation
Prospective Observational Cohort Study of Moderate Aortic Valve Disease
The objective of this research is to evaluate and predict the progression of moderate aortic stenosis and regurgitation from clinical characterization, biological, echocardiographic, and computed tomography (CT) et. al.
- Conditions
- Moderate Aortic Valve Stenosis, Moderate Aortic Valve Regurgitation, Aortic Valve Disease
- Trial name
- NCT06595992
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Unrecognized Condition
A 15-year Single Center Experience of Endovascular Treatment of Transplant Renal Artery Stenosis
Stenosis of the renal graft arteries occurs in 1 to 26% of cases and can damage the graft. Endovascular treatment is first-line treatment.
- Trial name
- NCT03477071
- Testing
- Angioplasty for Transplant Renal Artery Stenosis (TRAS)
- Volunteers
- 1,323 people
- Sponsor
- Centre Hospitalier Universitaire de Nice
Aortic Stenosis
Impact of Beta-blocker on Outcome Among Patients Undergoing Transcatheter Aortic Valve Replacement (B-TAVR)
This is a multi-centric, open-label, randomized trial to evaluate the safety and efficacy of temporary discontinuation of beta-blocker treatment in patients undergoing transcatheter aortic valve replacement.
- Trial name
- NCT06472934
- Testing
- Transcatheter aortic valve replacement in the absence of B-blocker treatment, Transcatheter aortic valve replacement
- Where
- 11 sites in Austria, Germany and 1 more
- Volunteers
- 498 people
- Sponsor
- University Hospital, Basel, Switzerland
Phimosis, Foreskin; Tightness
Safety and Efficacy of the Sterile Single-use Circular Stapling Device CIRCCURER II (Jiangxi Langhe Medical Instrument Co., Ltd., Guangzhou, China)
Evaluation of the safety and efficacy of the sterile single-use circular stapling device CIRCCURER II (Jiangxi Langhe Medical Instrument Co., Ltd., Guangzhou, China) in comparison with circumcision in adults patients with…
- Conditions
- Phimosis, Foreskin; Tightness, Redundant Prepuce
- Trial name
- CiCi-2021 (NCT04902898)
- Testing
- Circumcision in adults using sterile single-use circular stapling device, Circumcision in adults
- Where
- Greece
- Volunteers
- 100 people
- Sponsor
- University of Thessaly
Hypertrophic Cardiomyopathy
Efficacy, Safety, and Tolerability of Perhexiline in Subjects With Hypertrophic Cardiomyopathy and Heart Failure
A Study on the Efficacy, Safety, and Tolerability of Perhexiline maleate in Subjects with Hypertrophic Cardiomyopathy and Moderate-To-Severe Heart Failure
- Trial name
- NCT02431221
- Testing
- Perhexiline
- Sponsor
- Heart Metabolics Limited
Anomalies of Pulmonary Artery, Congenital
Relationship Between Tracheal and Left Pulmonary Artery Stenosis Index and Prognosis of PA Sling With Tracheal Stenosis
Pulmonary artery sling is a rare congenital pulmonary vascular malformation, often associated with tracheal or bronchial stenosis.
- Trial name
- NCT04383184
- Testing
- tracheoplasty
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Children's Hospital of Fudan University
Stent Migration, GastroEsophageal Cancer
Anti-Migration System for Anti-reflux Oeso-gastric Stent (ANTIMIG)
The aim of this prospective, controlled, randomized, multicentre, single-blind study is to compare the rate of intragastric migration of 2 types of esophageal stents with and without an anti-migration device placed for locally…
- Trial name
- ANTIMIG (NCT05431738)
- Testing
- Gastroesophageal stent placement
- Where
- France
- Volunteers
- 180 people
- Sponsor
- Société Française d'Endoscopie Digestive
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