Clinical trials: Regional Blood Flow
Peripheral Vascular Disease
Lower Extremity Regional Anesthesia and Infrainguinal Bypass Grafting
In this investigation, the investigators will attempt to demonstrate that patients who have received nerve blocks (regional anesthesia) prior to open surgical vascular bypass of the lower extremities (infrainguinal bypass…
- Trial name
- NCT01803165
- Testing
- Single shot femoral and sciatic nerve block
- Sponsor
- University of Nebraska
Comorbidities and Coexisting Conditions, Cardiopulmonary Resuscitation
Charlson Comorbidity Index and Outcome of Cardiopulmonary Resuscitation in Geriatric Patients in Hong Kong
The goal of this observational study is to learn about the factors affecting the outcome (survival) of cardiopulmonary resuscitation in older persons in a hospital.
- Conditions
- Comorbidities and Coexisting Conditions, Cardiopulmonary Resuscitation, Geriatrics
- Trial name
- NCT06209944
- Testing
- Cardiopulmonary resuscitation
- Where
- China
- Volunteers
- 394 people
- Sponsor
- Jane Yidan Zhu
Sore Throat
Inhalation of Lidocaine Before Intubation
We investigate the potential benefits of ultrasound-driven lidocaine inhalation immediately before induction.
- Trial name
- NCT01838993
- Testing
- Lidocaine inhalation
- Where
- Taiwan
- Volunteers
- 70 people
- Sponsor
- New Taipei City Hospital
Coronary Artery Disease
Vascular Function on the First Day After Cardiac Surgery
This study examines the flow mediated dilation (FMD) of the brachial artery before and after cardiac surgery. FMD is measured with ultrasound technique.
- Trial name
- NCT02001090
- Where
- Norway
- Volunteers
- 25 people
- Sponsor
- Norwegian University of Science and Technology
Covid-19, Critical Illness
MIcrovascular Dysfunction in CRitically Ill cOVID-19 Patients
Microcirculatory dysfunction appears to play a key role in the development of organ failure leading to the death of patients with coronavirus disease 2019 (Covid-19).
- Conditions
- Covid-19, Critical Illness, Hemodynamics, SARS-CoV Infection
- Trial name
- MICROVID (NCT04819802)
- Testing
- Measurement of sublingual microcirculation, Plasma sampling
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Aneurysmal Subarachnoid Hemorrhage, Delayed Neurological Deficit
Effects of Donepezil on Regional Cerebral Blood Flow Following Aneurysmal Subarachnoid Haemorrhage
Introduction Aneurysmal subarachnoid hemorrhage (aSAH) is bleeding around the under surface of the brain caused by rupture of an aneurysm arising from a blood vessel.
- Conditions
- Aneurysmal Subarachnoid Hemorrhage, Delayed Neurological Deficit, Delayed Cerebral Ischemia, Vasospasm
- Trial name
- DASH (NCT02222727)
- Testing
- Donepezil
- Where
- United Kingdom
- Volunteers
- 19 people
- Sponsor
- St George's, University of London
Liver Transplant Failure
Liver Graft Viability Assessment During Normothermic Regional Perfusion
With the increasing shortage of available donor organs, liver transplantation from donation after circulatory death (DCD) has been established in many countries to offer a therapeutic strategy for patients with end-stage liver…
- Trial name
- MAASTR3BOLOMIC (NCT05361044)
- Testing
- Blood samples Donnor
- Where
- 4 sites in France
- Volunteers
- 60 people
- Sponsor
- Hospices Civils de Lyon
Regional Blood Flow
Dysfunction of Nutritive Blood Flow as a Determinant of Anabolic Resistance in Older People
With age, muscles tend to waste at 0.5-1% per year, so that an 80 year old may have only 70% of the muscle possessed at 50. Muscle loss makes it harder to carry out tasks that require strength, keep the body balanced and continue…
- Trial name
- Dunhill01 (NCT01734616)
- Testing
- Old Exercise, Old Acute Cocoa, Old 7 Day Cocoa
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Healthy
Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of…
- Trial name
- NCT00912665
- Testing
- Laser Doppler Flowmetry, Goldmann applanation tonometer, squatting
- Where
- Austria
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Sickle Cell Anemia
Nitric Oxide to Improve Blood Flow in Sickle Cell Disease
Nitric oxide is important in regulating blood vessel dilation, and consequently, blood flow. This gas is continuously produced by cells that line the blood vessels.
- Trial name
- NCT00009581
- Testing
- L-NMMA, Acetylcholine
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Glaucoma
Ocular Hemodynamic Effects of Nitrovasodilators in Healthy Subjects
Glaucoma, one of the most common causes of blindness, is associated with increased intraocular pressure (IOP) and optic nerve head ischemia. Nitrovasodilators are discussed in the treatment of glaucoma.
- Trial name
- NCT00810381
- Testing
- Nitroglycerin, Isosorbide-Dinitrate, Sodium-nitroprusside
- Where
- Austria
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Ocular Physiology, Regional Blood Flow
Choroidal Blood Flow Regulation During Isometric Exercise: Effects of Ca2+-Channel Blockade
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. For a long time it had been assumed that the choroid is a strictly passive vascular bed, which shows no autoregulation.
- Trial name
- NCT00280462
- Testing
- Nifedipine (drug), L-Arginin (drug)
- Where
- Austria
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Peripheral Vascular Disease
Evaluation of the Effect of the Flowaid Device in Increasing Local Circulation in the Leg
This is an open label pilot study to evaluate the efficacy and the safety of the Flowaid device in increasing local circulation in the legs.
- Trial name
- NCT00538226
- Testing
- External Electric Muscle Stimulation
- Where
- United States
- Sponsor
- Rosenblum, Jonathan I., DPM
Brain Injuries
Clinical Pilot Study to Evaluate a New Multi-parameter Neuromonitoring Device in Brain-injured Patients
Clinical pilot study to evaluate a new multi-parameter neuromonitoring device that allows the measurement of regional cerebral blood flow (rCBF), intracranial pressure (ICP), brain temperature monitoring and ventricular…
- Trial name
- CBMS FIH (NCT03249220)
- Testing
- Placement of the CBMS Probe
- Where
- 2 sites in Switzerland
- Volunteers
- 1 people
- Sponsor
- Carag AG
Regional Cerebral Blood Flow, Mild Cognitive Impairment
Effects of Photobiomodulation on Changes in Cognitive Function and rCBF in MCI
This pilot study has two goals. The first is to see if the cognitive improves when VA and CA are stimulated in MCI patients, and the second is to do an explanatory data analysis to see if that improves cognitive in relation to…
- Conditions
- Regional Cerebral Blood Flow, Mild Cognitive Impairment, Cognitive Function
- Trial name
- NCT04721093
- Testing
- Photobiomodulation device
- Where
- South Korea
- Volunteers
- 14 people
- Sponsor
- Pusan National University Yangsan Hospital
Local Anesthetic Drug Adverse Reaction, Local Infiltration
: Pulpal Blood Flow With the Use of Intra-nasal Anesthetic
Anesthetics with vasoconstrictors decrease pulpal blood flow but the impact of intranasal local anesthetics on blood flow is unknown.
- Conditions
- Local Anesthetic Drug Adverse Reaction, Local Infiltration, Pulp Disease, Dental
- Trial name
- NCT03368391
- Testing
- tetracaine HCl and oxymetazoline HCL, 2% Lidocaine with 1:100,000 epinephrine, 3% Mepivacaine with 1:100,000 epinephrine
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Louisiana State University Health Sciences Center in New Orleans
Cerebral Oxygen Saturation,MCA Velocity,Intraoperative Neurological Symptoms During Carotid Endarterectomy
Middle Cerebral Artery Velocity and Oxygen Saturation of the Brain During Carotid Endarterectomy
The primary endpoint of our study is to determine whether neurological symptoms (aphasia, paresis, loss of consciousness, numbness) occur after clamping the internal carotid artery, and if so, changes showed by transcranial…
- Trial name
- NCT02665104
- Testing
- transcranial Doppler (TCD) and INVOS monitor
- Where
- 2 sites in Hungary
- Volunteers
- 100 people
- Sponsor
- University of Debrecen
Erythema
Effect of Thoracic Spine Mobilization on Sympathetic Nervous Systems
This pilot study aims to i) represents the feasibility of the study design and ii) to point out acute effects of thoracic spine mobilization on skin-blood flow, erythema and the sympathetic nervous system.
- Trial name
- NCT02832141
- Testing
- Mobilization anterior, Mobilization posterior
- Where
- Switzerland
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Bern University of Applied Sciences
Ulcerative Colitis Flare
Local and Systemic Immunoprofiling of Patients Diagnosed With Ulcerative Colitis
Immune-mediated diseases are extremely diverse - patients with the same diagnosis may see the disease progress in very different ways, and respond differently to treatments.
- Trial name
- ImmUniverse (NCT05680883)
- Where
- Netherlands
- Volunteers
- 40 people
- Sponsor
- Radboud University Medical Center
Heart Transplant Failure, Determination of Death
Safety and Effectiveness of NRP for DCD Heart Transplantation
This is a prospective, observational, pilot trial to evaluate the feasibility of heart transplantation using normothermic regional perfusion (NRP) donation after donor circulatory death (DCD).
- Conditions
- Heart Transplant Failure, Determination of Death, Outcomes Research, Death
- Trial name
- DCDNRPHeart (NCT04626284)
- Testing
- Heart Transplantation
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- University of Nebraska