Clinical trials: Microvascular Circulation
E-cigarette Use, Microcirculation
The Acute Effects of E-cigarette Inhalation on Vascular Function, Microcirculation and Thrombosis
This is a human randomized controlled cross-over study where the effects of e-cigarette inhalation (with or without nicotine) on vascular function, microcirculation and thrombosis is assessed.
- Conditions
- E-cigarette Use, Microcirculation, Thrombosis, Vascular Function
- Trial name
- NCT04175457
- Testing
- e-cigarette
- Where
- Sweden
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Ocular Physiology, Microcirculation
Role of Adenosine in the Control of Choroidal Blood Flow During Changes in Ocular Perfusion Pressure.
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
- NCT00712764
- Testing
- Adenosine
- Where
- Austria
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Diabetes Mellitus, Healthy
Vascular Effects of Endothelium-Derived Versus Hemoglobin-Transported Nitric Oxide in Healthy Subjects
Nitric oxide (NO) is a soluble gas, continuously synthesized by the endothelium, that contributes importantly to vasodilator tone of the coronary and systemic circulations by activating guanylyl cyclase in vascular smooth muscle…
- Conditions
- Diabetes Mellitus, Healthy, Hypercholesterolemia, Hypertension
- Trial name
- NCT00001963
- Testing
- hemoglobin-transported nitric oxide
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Critical Illness
Sublingual Microcirculation Monitoring in ICU
Prospective observational study designed to implement a daily monitoring of microcirculation and tissue oxygenation in all critically ill patients admitted to the ICU in the period of nine months, in order to assess the…
- Trial name
- MICRODAIMON (NCT02649088)
- Testing
- Microscan, NIRS from Hutchinson
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Università Politecnica delle Marche
Microcirculatory Dysfunction, Tissue Hypoperfusion
Submental Tissue Oxygenation and Arterial Lactate in Major Surgery
During major surgical procedures performed under general anesthesia, changes in blood flow and oxygen delivery to tissues may occur due to blood loss, hemodynamic fluctuations, and anesthesia-related physiological effects.
- Conditions
- Microcirculatory Dysfunction, Tissue Hypoperfusion, Microcirculatory Status, Microvascular Circulation
- Trial name
- NCT07399275
- Testing
- No intervention. This is a prospective observational study. Near-infrared spectroscopy measurements are performed for monitoring purposes only and do not influence clinical management.
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Bursa Sevket Yilmaz Training and Research Hospital
Critical Illness, Healthy
Assessment of the Repeatability of Sublingual Microcirculation Function Measurements in Healthy Volunteers and Critically Ill Patients
The assessment of microcirculatory function plays a pivotal role in perioperative medicine and intensive care. One promising method for evaluating microcirculatory function is the microscopic analysis of the oral mucosal…
- Trial name
- NCT07397208
- Where
- Poland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Medical University of Gdansk
Stroke, Vascular Diseases
Passive Limb Movement Study
Stroke survivors have compromised vascular function which may contribute to secondary stroke risk, cardiovascular disease, and may limit their exercise tolerance.
- Conditions
- Stroke, Vascular Diseases, Ischemic
- Trial name
- PLM (NCT05935670)
- Testing
- Ischemic Conditioning
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Medical College of Wisconsin
Ageing, Blood Flow Restriction (BFR) Training Effects
Comparing Vascular Responses to Aerobic Exercise With and Without Blood Flow Restriction in Young and Older Adults
Aging is a major risk factor for cardiovascular disease (CVD), contributing to progressive macrovascular and microvascular dysfunction.
- Trial name
- UNDER PRESSURE (NCT07079280)
- Testing
- Low Intensity Aerobic Exercise with Blood Flow Restriction (LIAE+BFR), High Intensity Interval Exercise (HIIE)
- Where
- Portugal
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Egas Moniz - Cooperativa de Ensino Superior, CRL
Microvascular Dysfunction
Cheese Consumption and Human Microvascular Function
Increased dairy intake is associated with improved measures of blood vessel health. Dairy cheese, however, is often high in sodium. Dietary sodium can impair blood vessel function.
- Trial name
- NCT03376555
- Testing
- Low sodium no cheese, Low sodium cheese, High sodium no cheese
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Lacy Alexander
Healthy
Healthy Volunteer Study to Assess Microcirculatory Function
The aim of the study is to obtain microvascular data from a healthy, heterogeneous population for assessing reference values for the parameters Functional Capillary Density (FCD), heterogeneity of FCD, Microvascular Oxygen…
- Trial name
- NCT05608798
- Testing
- ODI-Tech medical device
- Where
- Norway
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- ODI Medical AS
Skin Fold, Skin Laxity
A Safety and Effectiveness Study of CELLBOOSTER® Lift (Stabilized Booster Complex Using CHAC Technology)
The current post-market clinical investigation has been designed to evaluate the efficacy and safety of CELLBOOSTER® Lift, a HA-based product marketed by SUISSELLE SA.
- Conditions
- Skin Fold, Skin Laxity, Skin Texture Disorder, Skin Depression
- Trial name
- NCT06000839
- Testing
- (D0) Intradermal injection - micropapula technique, (D14) Intradermal injection - micropapula technique, (D28) Intradermal injection - micropapula technique
- Where
- France
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Suisselle
Diabetes Mellitus
Microvascular Response in Diabetes Mellitus
Vascular and neurological mechanisms are both likely to be involved in foot ulcer. We recently reported on the hand an original transient pressure-induced vasodilation (PIV) during a 5 mmHg/min increase of pressure strain using…
- Trial name
- NCT00160927
- Testing
- local heating, iontophoresis, actylcholine
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University Hospital, Angers
Myocardial Blood Flow Reserve, Mechanical Dyssynchrony
Mechanical Dyssynchrony and Microvascular Dysfunction by SPECT
The project is aimed at studying the feasibility of mechanical dyssynchrony of the left ventricle of the heart, determined by SPECT (gated MPI), as well as its stress-induced dynamics, in the evaluation of patients with coronary…
- Conditions
- Myocardial Blood Flow Reserve, Mechanical Dyssynchrony, Coronary Arterial Disease (CAD)
- Trial name
- MD&MD (NCT06969547)
- Testing
- dynamic SPECT (two-day rest/stress protocol), gated myocardial perfusion imaging, blood sampling
- Where
- Russia
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Tomsk National Research Medical Center of the Russian Academy of Sciences
Blood Flow
Microvascular Blood Flow During Passive Heating
Determine whether passive heating intervention effects microvascular blood flow as measured with near-infrared spectroscopy
- Trial name
- NCT06565221
- Testing
- Heat and negative pressure
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- San Diego State University
Coronary Arterial Disease (CAD), Angina (Stable)
Effect of Beta-blockers on Coronary Flow and Resistance in Patients With ANOCA
The goal of this clinical trial is to learn whether beta-blockers can improve coronary blood flow and reduce resistance in patients with angina and no obstructive coronary arteries (ANOCA).
- Conditions
- Coronary Arterial Disease (CAD), Angina (Stable), Microvascular Circulation
- Trial name
- BEACON (NCT06864234)
- Testing
- Saline (NaCl), Metoprolol Tartrate
- Where
- Belgium
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- VZW Cardiovascular Research Center Aalst
Cutaneous Microcirculation in Vascular Diseases
Microcirculatory Mapping of the Aging Hand and Foot
Currently, dorsal hand rejuvenation is an upcoming issue as patients seek plastic surgeons to address this highly visible area, although no specific statistics concerning the number of patients undergoing dorsal hand rejuvenation…
- Trial name
- NCT01235312
- Where
- Germany
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hannover Medical School
Intravenous Fluids, Pharmacodynamics
Effect of Oral Water in Healthy Volunteers on Cardiac Output, Regional Flow and Microcirculation in Healthy Volunteers
Human digestive system physiologically ensures the absorption of oral water and hydration of the human body. Water is quickly absorbed by the digestive tract with a peak between 15 and 20 minutes.
- Conditions
- Intravenous Fluids, Pharmacodynamics, Fluid Therapy, Fluid Responsiveness
- Trial name
- WATERNAL (NCT05153837)
- Testing
- saline intravenous administration, oral water
- Where
- France
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire, Amiens
Hypertension, Insulin Resistance
Role of AT1-receptor Blockers in Insulin-induced Vasodilation.
In this study we hypothesize that blocking the angiotensin II AT1-receptor improves the insulin-induced microvascular dilatation. Objectives: 1.
- Conditions
- Hypertension, Insulin Resistance, Microcirculation
- Trial name
- NCT00742066
- Testing
- Irbesartan, Felodipine
- Where
- Netherlands
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Skin Thickness, Skin Stiffness
Effects of Vibration Therapy on Plantar Skin Properties
The goal of this clinical trial is to learn if there are changes in plantar skin surface in the first metatarsal head (M1) after getting local vibration treatments.
- Conditions
- Skin Thickness, Skin Stiffness, Microcirculation
- Trial name
- NCT07863843
- Testing
- Local vibration
- Where
- Taiwan
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Asia University
Hyperbaric Oxygen Therapy
Effect of Hyperbaric Oxygen Therapy on Microcirculation
Previous studies shoes that hyperoxia alters microcirculation.The investigators hypothesize that hyperbaric may restore microcirculation integrity.
- Trial name
- MICROHB (NCT03980210)
- Testing
- Hyperbaric oxygen therapy
- Where
- France
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University Hospital, Lille