Clinical trials: Distension
Adverse Childhood Experiences, Vascular Dilatation
The Iowa ACEs and Sleep Cohort and Manipulating Sleep in Young Adults With ACEs Studies
The overall purpose of this study is to understand the role of disrupted sleep in the association of exposure to early life adversity (adverse childhood experiences (ACEs)) with vascular endothelial (dys)function.
- Conditions
- Adverse Childhood Experiences, Vascular Dilatation, Sleep, Sleep Disturbance
- Trial name
- NCT06454344
- Testing
- Cognitive Behavioral Therapy for Insomnia (CBT-i)
- Where
- 2 sites in United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Cardiovascular Disease
Evaluation of Non-invasive Measurements of Atherosclerosis in Cardiovascular Risk Stratification
Multiple risk factors contribute to atherosclerosis, which ultimately results in clinical manifestation of cardiovascular disease.
- Trial name
- NIMA (NCT01555294)
- Where
- Netherlands
- Volunteers
- 1,960 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Coronary Artery Disease
The Nordic Bifurcation Study III
Should we, or should we not, perform dilatation of the side branch through the main vessel stent, if there is acceptable blood flow in the side branch?
- Trial name
- BIF III (NCT00914199)
- Testing
- Percutaneous coronary intervention (PCI)
- Where
- Denmark
- Volunteers
- 477 people
- Sponsor
- Evald Hoej Christiansen
Irritable Bowel Syndrome
Ileocecal Sphincter Reflex by Cecal Distension During Colonoscopy
The aim of the current study is to test the hypothesis that patients with IBS may have a defective ICV pressures and may have small bowel bacterial overgrowth.
- Trial name
- NCT01413945
- Where
- United States
- Volunteers
- 2 people, healthy volunteers welcome
- Sponsor
- Northwell Health
Nitric Oxide, Endothelium-Derived Relaxing Factor
Effects of Nitrite on Blood Vessel Dilation in Normal Volunteers
Nitric oxide gas is important in regulating blood vessel dilation, and consequently, blood flow. This gas is continuously produced by endothelial cells, which line the blood vessels.
- Conditions
- Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
- Trial name
- NCT00048477
- Testing
- L-NMMA and Sodium Nitrite
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
de Novo Coronary Lesions
Resting Full-cycle Ratio-guided Step by Step Balloon Dilation
Drug-coated balloon (DCB), as an implant-free treatment technique, has been widely used in coronary interventional therapy, effectively solving the problem of restenosis caused by traditional stent implantation, and providing a…
- Trial name
- REDUCE (NCT05107024)
- Testing
- RFR-guided step by step balloon dilation, Traditional balloon dilation
- Volunteers
- 50 people
- Sponsor
- Shenzhen People's Hospital
Cardiovascular Diseases
Vascular Reactivity Assessment by the AngioDefender Device -- A Precision Study
The objective of this study is to define the repeatability and reproducibility of quantifying flow-mediated dilation (FMD) of the brachial artery (BA) using the AngioDefender (AD) methodology.
- Trial name
- NCT02641197
- Testing
- AngioDefender
- Where
- 2 sites in Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Everist Genomics, Inc
Coronary Artery Ectasia
A New Classification and Interventional Therapy for Coronary Artery Ectasia
This study is aim to present a new classification for coronary artery ectasia and find the best interventional therapy for different types of patients were treated and studied.
- Trial name
- NCIPCAE (NCT04265989)
- Testing
- Single BMS, Single or Double BMS, BMS+DES
- Where
- China
- Volunteers
- 100 people
- Sponsor
- China National Center for Cardiovascular Diseases
Keratoconus, Irregular Astigmatism
Wavefront Guided Scleral Lenses for Keratoconus and Irregular Astigmatism
Aberrations are the spreading of light from a point focus. Aberrations of the eyes can be objectively evaluated with a wavefront aberrometer.
- Conditions
- Keratoconus, Irregular Astigmatism, Corneal Ectasia, Aberration, Corneal Wavefront
- Trial name
- WFG Sclerals (NCT04698590)
- Testing
- Wavefront Guided Scleral Lenses, Traditional Scleral Lenses
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Cornea and Laser Eye Institute
Pain
12 Versus 20 mL PCB for D&E Cervical Prep
More research is needed to investigate methods of pain control for cervical preparation for abortion procedures. Women report pain with paracervical block injection as well as with osmotic dilator placement.
- Trial name
- NCT03356145
- Testing
- 12 mL paracervical block, 20 mL paracervical block
- Where
- United States
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- Stanford University
Aortic Diseases, Aortic Dissection
Proximal Aortopathy in Scotland - Epidemiology and Surgical Outcomes
The aorta is the principal arterial vessel arising from the left heart that transfers blood to the body. Certain genetic and familial disease processes are known to weaken the aortic wall resulting in dilation and potential…
- Conditions
- Aortic Diseases, Aortic Dissection, Aortic Aneurysm, Thoracic, Aortic Ectasia
- Trial name
- NCT05389865
- Testing
- Surgery on the proximal aorta (aortic root +/- ascending aorta), Patients diagnosed with thoracic aortopathy but not operated upon
- Where
- United Kingdom
- Volunteers
- 1,662 people
- Sponsor
- Golden Jubilee National Hospital
Hemorrhage
Changes in Hemorrhage With Prophylactic Oxytocin for Dilation and Evacuation
The purpose of this study is to assess the effectiveness of prophylactic oxytocin on hemorrhage rates for second trimester dilation and evacuation (D\&E) in the clinic setting.
- Trial name
- NCT06141447
- Testing
- Oxytocin + normal saline, Normal saline
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Pain Management
Transcutaneous Electrical Nerve Stimulation (TENS) for Pain Control During Cervical Dilator Placement Prior to Dilation and Evacuation
This study evaluates the use of Transcutaneous Electrical Nerve Stimulation (TENS) as a method of pain control during osmotic dilator insertion prior to dilation and evacuation.
- Trial name
- NCT03868787
- Testing
- TENS
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Ashley Turner, MD
Achalasia, Esophageal
Comparative Study of Per-oral Endoscopic Myotomy (POEM) in Treatment - naïve Achalasia Patients Versus Patients With Previous Pneumatic Dilation
The aim of this study is to compare the clinical efficacy, safety, and technical outcomes of per-oral endoscopid myotomy( POEM )in treatment-naïve achalasia patients versus patients with previous pneumatic dilation.
- Trial name
- NCT07287787
- Testing
- per-oral endoscopic myotomy (POEM)
- Volunteers
- 32 people
- Sponsor
- Assiut University
Intrauterine Polyp, Intrauterine Synechiae
Study on the Effective Dose and Safety of Esketamine in Hysteroscopic Surgery Under Monitored Anesthesia Care
Cervical dilation-induced somatic responses remain a critical challenge in ambulatory hysteroscopic surgery. Esketamine, an N-methyl-D-aspartate (NMDA) receptor antagonist, exhibits unique analgesic and sedative properties that…
- Trial name
- NCT07034963
- Testing
- Determine the ED50 and ED95 of esketamine, Intravenous the dose of esketamine ED95, Intravenous remifentanil 1μg∙kg-1
- Where
- China
- Volunteers
- 95 people
- Sponsor
- The First Affiliated Hospital of Xiamen University
Cataract
Medications Effect on Lenstar Measurements
Prior to cataract surgery the lens must be calculated to appropriately fit a patient for the intraocular lens implant. Lenstar is an optical biometer that calculates the axial length, keratometry, lens thickness, pupillometry…
- Trial name
- NCT02780063
- Testing
- Lenstar Biometer
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- NYU Langone Health
Asthma, Inflammation
Vascular Implications of a Naturally Occurring Asthma Exacerbation
Although asthma is a disease of the airways, research is now showing that asthmatics are more likely to develop cardiovascular disease (CVD) compared to non-asthmatics.
- Conditions
- Asthma, Inflammation, Cardiovascular Risk Factor
- Trial name
- NCT03679299
- Testing
- Observational - No intervention
- Where
- 2 sites in Canada
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Peripheral Arterial Disease (PAD)
ULTRASCORE™ Focused Force PTA Balloon Angioplasty for CLI Patients With Below the Knee Vessel Disease
The purpose of this single-arm, exploratory study is to evaluate safety and performance of treatment of critical limb ischemia (CLI) with the ULTRASCORE™ Focused Force balloon.
- Trial name
- NCT04631848
- Testing
- ULTRASCORE™ Focused Force PTA Balloon
- Where
- Germany
- Volunteers
- 80 people
- Sponsor
- Michael Lichtenberg, MD
Chronic Eustachian Salpingitis
Feasibility of Balloon Dilation of the Eustachian Tubes Under Local Anesthesia
The objective of this study is to demonstrate that balloon dilation of the Eustachian tubes can be done successfully for treatment of chronic dilatory Eustachian tube dysfunction under local anesthesia with acceptable patient…
- Trial name
- NCT04055714
- Testing
- Balloon dilation of the Eustachian tubes
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Piedmont Ear, Nose, Throat and Related Allergy, PC
Cholangiopancreatography, Endoscopic Retrograde
Long-duration EPBD vs EST for Removal of Biliary Stones
Although EPBD has a lower risk of post-ERCP bleeding and long-term complications than EST and is easier to perform in altered/difficult anatomy, EPBD is reserved for patients with bleeding diathesis by current consensus because…
- Trial name
- NCT03683485
- Testing
- long duration EPBD, EST
- Where
- 4 sites in South Korea
- Volunteers
- 358 people
- Sponsor
- Dankook University