Clinical trials: Constriction, Pathologic
Orthodontic Appliance Complication
Intraoral Maxillary Protraction Technique vs Facemask Using Alt-RAMEC Protocol for Treatment Class III Growing Patients
The study compares use of intraoral technique for maxillary advancement and extra oral technique with hep of protocol called Alt-RAMEC which depends on repeated expansion and constriction of maxilla to help in maxillary…
- Trial name
- ALT-RAMEC (NCT05345756)
- Testing
- Intraoral protraction device, Extraoral protraction device
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Cairo University
Coronary Stenosis, Angina Pectoris
Evaluation of the Correlation Between the Coronary Stenosis Degree With FFRCT and the Grade of Stable Angina Pectoris
Angina pectoris is the most common clinical manifestation of coronary heart disease（CHD）, which is the main feature of chest pain caused by transient myocardial ischemia.
- Trial name
- NCT02802046
- Testing
- Computed tomographic angiography of coronary artery
- Volunteers
- 20 people
- Sponsor
- Guiyang No.4 People's Hospital
Aortic Valve Stenosis, Regurgitation, Aortic
Comparison of the Balloon-Expandable Edwards Valve and Self-Expandable CoreValve Evolut R or Evolut PRO System for the Treatment of Small, Severely Dysfunctional Surgical Aortic Bioprotheses. The 'LYTEN' Trial
The treatment with transcatheter aortic valve implantation (TAVI) of patients with small (≤23mm) surgical bioprostheses remains a challenge due to the increased transvalvular residual gradients and high rates of severe…
- Conditions
- Aortic Valve Stenosis, Regurgitation, Aortic, Prosthesis Failure
- Trial name
- NCT03520101
- Testing
- TAVI_ViV procedure with Edwards valve, TAVI_ViV procedure with CoreValve system
- Where
- Canada
- Volunteers
- 102 people
- Sponsor
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Quebec
Peripheral Arterial Disease, Vascular Diseases
The Efemoral Vascular Scaffold System (EVSS) for the Treatment of Patients With Symptomatic Peripheral Vascular Disease From Stenosis or Occlusion of the Femoropopliteal Artery
To evaluate the safety and performance of the EVSS in patients with symptomatic peripheral vascular disease from stenosis or occlusion of the femoropopliteal artery
- Conditions
- Peripheral Arterial Disease, Vascular Diseases, Stenosis, Femoropopliteal Stenosis
- Trial name
- Efemoral I (NCT04584632)
- Testing
- Efemoral Vascular Scaffold System (EVSS)
- Where
- 8 sites in Australia, New Zealand
- Volunteers
- 100 people
- Sponsor
- Efemoral Medical, Inc.
Apnea, Obstructive Sleep
Associations Apnoea Hypopnoea Index (AHI) and Malocclusions in Growing Patients With Maxillary Constriction
The aim of this prospective clinical study is to evaluate the association between the Apnoea Hypopnoea Index (AHI) and the type of malocclusion in pediatric patients with maxillary constriction.
- Trial name
- NCT07009535
- Testing
- Polysomnography
- Where
- Italy
- Volunteers
- 20 people
- Sponsor
- University of Pavia
Maxillary Constriction, Unilateral Posterior Crossbite
Analysis of the Dentoskeletal Effects of the Expander With Differential Opening
This study evaluates the dentoskeletal effects of the expander with differential opening in orthodontic patients in the mixed dentition.
- Conditions
- Maxillary Constriction, Unilateral Posterior Crossbite, Bilateral Posterior Crossbite, Mandibular Dental Arch Constriction
- Trial name
- NCT02810353
- Testing
- Differential rapid maxillary expansion, Conventional rapid maxillary expansion
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- University of Sao Paulo
Stenosis, Histiocytoma
Genetic Study of Patients and Families With Diaphyseal Medullary Stenosis With Malignant Fibrous Histiocytoma of the Bone
OBJECTIVES: I. Identify and characterize the gene causing diaphyseal medullary stenosis with malignant fibrous histiocytoma of the bone. II. Determine the clinical manifestations of this disease in these patients.
- Trial name
- NCT00007046
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- National Center for Research Resources (NCRR)
Complication of Transplanted Liver
Donor Specific HLA Alloantibodies in Liver Transplantation
The aim is to evaluate the impact of donor specific HLA alloantibodies (DSA) on all-cause mortality and re-transplantation, early allograft dysfunction, acute and chronic rejection, fibrosis, vascular, and biliary complications.
- Trial name
- NCT02784080
- Testing
- HLA-alloantibodies exposure
- Where
- 5 sites in Denmark, Finland and 2 more
- Volunteers
- 858 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Severe Aortic Valve Stenosis, High-degree AV Block
Infranodal Conduction Time During TAVR as Predictor of HAVB
Consecutive patients with high grade aortic stenosis undergoing transcatheter aortic valve replacement (TAVR) with a self-expanding valve (Medtronic CoreValve Evolut R® or Edwards Sapien S3®) without pre-existing pacemaker…
- Conditions
- Severe Aortic Valve Stenosis, High-degree AV Block, Left Bundle-Branch Block
- Trial name
- HOM-TAVI (NCT04128384)
- Testing
- Limited electrophysiologic study including measurements of HV- and AH-intervals pre- and post-TAVR
- Where
- Germany
- Volunteers
- 200 people
- Sponsor
- University Hospital, Saarland
Aortic Valve Stenosis, Transcatheter Aortic Valve Implantation
Safety and Efficacy of Emergent TAVI in Patients With Severe AS
This is a single-centre, prospective, observational cohort study focusing on of patients suffering severe aortic valve stenosis (AS) undergoing emergent transcatheter aortic valve implantation (TAVI).
- Conditions
- Aortic Valve Stenosis, Transcatheter Aortic Valve Implantation, Emergencies
- Trial name
- NCT05528211
- Volunteers
- 10 people
- Sponsor
- Qilu Hospital of Shandong University
Children Brain Injury
Quantitative Pupillometry in Brain Injury Children : Variation After Osmotherapy
Intracranial hypertension (ICH) is a common and serious complication in children admitted to pediatric intensive care units. It is primarily caused by traumatic brain injury but can also result from brain malformations, brain…
- Trial name
- OSMOPUPILLO (NCT06642896)
- Testing
- pupillometer
- Where
- 2 sites in France
- Volunteers
- 90 people
- Sponsor
- University Hospital, Grenoble
Hemianopia, Homonymous, Tunnel Vision
Feasibility Tests for Various Prism Configurations for Visual Field Loss
The investigators will develop and test different configurations of high-power prisms to expand the field of vision of patients with visual field loss to assist them with obstacle detection when walking.
- Conditions
- Hemianopia, Homonymous, Tunnel Vision, Visual Field Defect, Peripheral, Visual Field Constriction Bilateral
- Trial name
- NCT04424979
- Testing
- High power prisms
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Massachusetts Eye and Ear Infirmary
Coarctation of Aorta, Aortic Stenosis
Cardiac Remodeling and Circulating Biomarkers in Pediatric Left Ventricular Pressure Loading Lesions
This study is designed to learn more about children who have blockage of the left side of their heart. The goal is to determine how much the heart muscle has thickened before surgery and how it changes in the months after…
- Conditions
- Coarctation of Aorta, Aortic Stenosis, Cardiac Hypertrophy
- Trial name
- LVOTO (NCT02545790)
- Testing
- Echocardiogram, Serology
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- University of Colorado, Denver
Esophageal Diseases
Caustic Esophageal Burns in Children and High Doses of Methylprednisolone
Corrosive substance ingestion in childhood is a public health issue in developing countries and several management protocols were proposed to prevent esophageal strictures.
- Trial name
- NCT02002078
- Testing
- methylprednisolon
- Volunteers
- 83 people
- Sponsor
- Sisli Hamidiye Etfal Training and Research Hospital
Kidney Transplant, Familial Hypercholesterolaemia
Cardiovascular Risk in Children With Chronic Conditions Study
Children living with chronic health conditions face a higher risk of developing cardiovascular diseases than their peers, largely due to the accelerated aging of the heart and blood vessels.
- Conditions
- Kidney Transplant, Familial Hypercholesterolaemia, Type 1 Diabetes Mellitus (T1DM), Type 2 Diabetes Mellitus (T2DM)
- Trial name
- CR3C (NCT07086989)
- Where
- 3 sites in Hungary
- Volunteers
- 300 people
- Sponsor
- Semmelweis University
Aortic Valve Stenosis
TranScatheter Aortic Valve RepLacement System US Feasibility Trial
A study to assess the safety and effectiveness of the Direct Flow Medical aortic valve system. This is for people with severe aortic stenosis who are not well enough to undergo a surgical repair.
- Trial name
- SALUS (NCT01932099)
- Testing
- Transcatheter aortic valve replacement
- Where
- 6 sites in United States
- Volunteers
- 30 people
- Sponsor
- Direct Flow Medical, Inc.
Lumbar Disc Herniation
Comparative Study Between UBE and PETD for the Treatment of Lumbar Spinal Canal Stenosis
OBJECTIVE Both unilateral biportal endoscopy technique(UBE) and percutaneous endoscopic transforaminal discectomy(PETD) are minimally invasive and effective surgical procedures for lumbar spinal stenosis.The object of this…
- Trial name
- NCT05033457
- Testing
- unilateral biportal endoscopy technique or percutaneous endoscopic transforaminal discectomy
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Shaanxi Provincial People's Hospital
Long QT Syndrome, Hypertrophic Cardiomyopathy
Molecular Genetic Screening and Identification of Congenital Arrhythmogenic Diseases
The aim of this study is the identification of familial congenital arrhythmogenic disorders and their clinical follow-up.
- Conditions
- Long QT Syndrome, Hypertrophic Cardiomyopathy, Arrhythmogenic Right Ventricular Dysplasia
- Trial name
- NCT00221832
- Where
- Germany
- Volunteers
- 300 people
- Sponsor
- Heidelberg University
Pelvic Organ Prolapse
Alterations in Connective Tissue in Patients With or Without Pelvic Organ Prolapse
The aim of our study is to investigate the alterations in connective tissue of vaginal wall in patients with and without pelvic organ prolapse (POP).
- Trial name
- NCT01749696
- Where
- Finland
- Volunteers
- 78 people
- Sponsor
- Turku University Hospital
Myocardial Infarction (MI), Hypertrophic Cardiomyopathy (HCM)
The Application of T1 Mapping in Real-World
The goal of this observational study is to create a comprehensive real-world spectrum of T1 mapping measurements across different heart conditions.
- Conditions
- Myocardial Infarction (MI), Hypertrophic Cardiomyopathy (HCM), Dilated Cardiomyopathy (DCM), Arrhythmogenic Cardiomyopathy
- Trial name
- NCT07354646
- Testing
- Magnetic Resonance Imaging with Contrast
- Where
- China
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Chinese Academy of Medical Sciences, Fuwai Hospital