Clinical trials: Pressure Flow Study
Cerebral Autoregulation, Cardiopulmonary Bypass
Impact of Cardiopulmonary Bypass Flow on Cerebral Autoregulation
Cerebral autoregulation is defined by the capacity of the brain to maintain a constant cerebral blood flow (CBF) despite variations of arterial pressure.
- Conditions
- Cerebral Autoregulation, Cardiopulmonary Bypass, Mean Arterial Pressure
- Trial name
- FLOWMAPCA (NCT05681741)
- Testing
- current versus high pump flow
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Clinique de la Sauvegarde
Mechanical Ventilation
Titration of PS Guided by FI : A Pilot Study
The goal of this single-center, pilot, randomized controlled trial is to evaluate the feasibility and preliminary efficacy of using the Flow Index (FI) to guide Pressure Support (PS) titration in adult patients receiving Pressure…
- Trial name
- NCT07769307
- Testing
- FI-guided ventilator support adjustment, Conventional PS titration
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Capital Medical University
Glaucoma
Aqueous Suppressant Versus Aqueous Outflow on Ocular Blood Flow
The purpose of this study will be to compare the aqueous production suppressant to aqueous outflow drugs in terms of the response to known vascular parameters.
- Trial name
- NCT01308788
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- Indiana University
Cardiogenic Shock
Effect of Peripheral VA-ECMO Flow Variations on the Pulmonary Arterial Occlusion Pressure (PAPO) in Patients With Refractory Cardiogenic Shock.
This study focuses on a population of adult patients placed under peripheral Veno-Arterial Extracorporeal Membrane Oxygenation (VA-ECMO) for refractory cardiogenic shock.
- Trial name
- PAPO-Flow (NCT06250439)
- Testing
- ECMO-Flow variations
- Where
- France
- Volunteers
- 80 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Coronary Artery Disease, Myocardial Ischemia
Evaluation of Accuracy of CFD-based RuiXin-FFR by Comparing With Pressure-wire-based FFR
Coronary Artery Disease (CAD) is the top killer nowadays. Pressure-wire-based Fractional Flow Reserve (FFR) is the gold standard for measuring ischemia in coronary arteries.
- Conditions
- Coronary Artery Disease, Myocardial Ischemia, Myocardial Fractional Flow Reserve
- Trial name
- NCT04731285
- Testing
- Pressure wire fractional flow reserve, CFD-based RuiXin-FFR
- Where
- China
- Volunteers
- 316 people
- Sponsor
- Beijing Anzhen Hospital
Open Angle Glaucoma, Normal Tension Glaucoma
Reproducibility of Blood Flowmetry in Human Retina Using the Nidek Laser Speckle Flowgraphy LSFG-NAVI System
In addition to intraocular pressure blood perfusion pressure in the optic nerve is an important factor determing the cause of glaucoma. Increasing evidence suggests that in glaucoma patients retinal blood may be decreased.
- Conditions
- Open Angle Glaucoma, Normal Tension Glaucoma, Healthy
- Trial name
- LSFG Repro (NCT04014933)
- Testing
- LASER SPECKLE FLOWGRAPHY
- Where
- Switzerland
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Blood Pressure
Hemodynamic Responses in Hemodialysis Patients to Blood Flow Restriction Using Non-pneumatic Anti-shock Garments
Study comparing different groups of people and how they respond to application of the non-pneumatic anti-shock garments. Investigators will divide all recruited participants into three groups based on health status (group 1…
- Trial name
- NCT02915627
- Testing
- Application of Antishock garment
- Where
- Canada
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Chronic Kidney Disease Requiring Chronic Dialysis, Hemodialysis, Home
Body Composition Monitor Among Daily Home Dialysis With Low Flow Dialysate
The fluid overload measured by the Body Composition Monitor (BCM Fresenius Medical Care) is a new independent risk factor of mortality.
- Conditions
- Chronic Kidney Disease Requiring Chronic Dialysis, Hemodialysis, Home, Electric Impedance
- Trial name
- VOLODIA (NCT03994133)
- Testing
- Measurement of the hydration state by bio-impedance spectroscopy
- Where
- France
- Volunteers
- 85 people
- Sponsor
- University Hospital, Caen
Hypoxia, Respiratory Acidosis
FIRST-line Support for Assistance in Breathing in Children (FIRST-ABC) Feasibility Study
A feasibility study to inform the design and conduct of a randomised controlled trial of high flow nasal cannula (HFNC) versus continuous positive airway pressure (CPAP) for non-invasive respiratory support in critically ill…
- Conditions
- Hypoxia, Respiratory Acidosis, Moderate/Severe Respiratory Distress
- Trial name
- FIRST-ABC (NCT02612415)
- Testing
- Treatment strategy: Non-invasive respiratory support delivered via high flow nasal cannula, Treatment strategy: Non-invasive respiratory support delivered via continuous positive airway pressure
- Where
- 3 sites in United Kingdom
- Volunteers
- 121 people
- Sponsor
- Great Ormond Street Hospital for Children NHS Foundation Trust
Urodynamic Studies, Urodynamics
Urodynamics: Prone Vs. Seated Position
To demonstrate the feasibility of a pressure-flow study using a urinary condom with drainage tube in the sitting and lying position in everyday clinical practice and the comparability of the measured values with the…
- Conditions
- Urodynamic Studies, Urodynamics, Outlet Obstruction
- Trial name
- NCT06864117
- Testing
- Body position during urodynamics
- Volunteers
- 200 people
- Sponsor
- Kantonsspital Winterthur KSW
Hypercapnic Respiratory Failure
High-flow Air Via Nasal Cannula vs Non-invasive Continuous Positive Airway Pressure for Hypercapnic Respiratory Failure
The study will be performed as a randomized controlled non-inferiority trial. HFA has been increasingly used in the last years to treat hypoxic respiratory failure (i.e.
- Trial name
- HIGHforHyper (NCT03944525)
- Testing
- High flow nasal cannula, Continuous positive airway pressure
- Where
- Austria
- Volunteers
- 62 people
- Sponsor
- Medical University of Vienna
Vascular Stiffness, Cognitive Change
Blueberry Study Aimed at Improving Cognition and Peripheral Blood Flow
Blueberries are rich in the content of a variety of biologically active chemicals that contribute to their health properties. The consumption of blueberries has beneficial effects on vascular function and brain health and…
- Conditions
- Vascular Stiffness, Cognitive Change, Blood Pressure
- Trial name
- NCT04015258
- Testing
- Blueberries, Blueberry powder, Blueberry components capsules
- Where
- United Kingdom
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Arterial Hypertension, Blood Pressure, High
Effects of Change in Blood Pressure on Retinal Capillary Rarefaction in Patients With Arterial Hypertension
To evaluate whether in patients with initially poorly-controlled arterial hypertension, structural and functional differences in the retina and choroid remain after achieving a well-controlled blood pressure.
- Trial name
- NCT06098300
- Where
- Austria
- Volunteers
- 30 people
- Sponsor
- Medical University of Vienna
Cerebral Blood Flow
Cerebral Blood Flow Using Transfontanelle Ultrasound
We planned to evaluate cerebral blood flow and its association with age, blood pressure, and end tidal carbon dioxide in small pediatric using transfontanelle ultrasound during general anesthesia.
- Trial name
- NCT04070339
- Testing
- transfontanelle ultrasound
- Where
- South Korea
- Volunteers
- 200 people
- Sponsor
- Seoul National University Hospital
Acute Respiratory Failure
Effects of a New Interface for NIV on Respiratory Drive
This pilot physiologic randomized cross-over study was designed to investigate if, in patients with hARF, a new device combining high-flow oxygen through nasal cannula (HFNC) and continuous positive airway pressure (CPAP) reduces…
- Trial name
- NCT04619667
- Testing
- High Flow Nasal Cannula (HFNC), Continuous Positive Airway Pressure (CPAP)
- Volunteers
- 22 people
- Sponsor
- University Magna Graecia
Septic Shock, Microcirculatory Dysfunction
Papaverine and Sublingual Microcirculation in Septic Shock
This is a prospective, multicenter, single-arm, open-label, pilot physiological study designed to evaluate the effects of intravenous papaverine on sublingual microcirculation and the vascular waterfall phenomenon in adult…
- Conditions
- Septic Shock, Microcirculatory Dysfunction, Sublingual Microcirculation, Hemodynamic Instability
- Trial name
- NCT07657741
- Testing
- Papaverine
- Where
- 2 sites in China
- Volunteers
- 20 people
- Sponsor
- First Affiliated Hospital of Wannan Medical College
Noninvasive Positive Pressure Ventilation, High Flow Nasal Cannula
A Multicentered Study on Efficiency of Noninvasive Ventilation Procedures
Noninvasive ventilation (NIV) is an alternative form of ventilatory support in critical care encompassing different modes of ventilation such as continuous positive airway pressure (CPAP), bilevel positive airway pressure (BiPAP)…
- Conditions
- Noninvasive Positive Pressure Ventilation, High Flow Nasal Cannula, Failure, Respiratory
- Trial name
- SAFE-NIV (NCT03066934)
- Testing
- noninvasive ventilation respiratory support
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 352 people
- Sponsor
- Akdeniz University
Laparoscopic Surgery
A Comparative Study of Ventilation Strategies in Different Surgical Positions on Intracranial Pressure and Cerebral Blood Flow During Laparoscopic Surgery
The purpose of this clinical trial is to investigate the effects of laparoscopic surgery in the Trendelenburg and Reverse Trendelenburg positions, and variable tidal volume ventilation (V-VCV), pressure-regulated…
- Trial name
- NCT06805747
- Testing
- Variable tidal volume ventilation (V-VCV), Pressure-regulated volume-controlled ventilation (PRVC), Conventional volume-controlled ventilation (C-VCV)
- Where
- China
- Volunteers
- 240 people
- Sponsor
- Inner Mongolia Baogang Hospital
Type 2 Diabetes
Study Looking at Cardiovascular Effects of Exenatide, Its Blood Pressure Lowering Effect and Its Mechanisms
Exenatide is a new drug which lowers blood sugar (glucose) levels for people with type 2 diabetes. It has significant advantages over other treatments such as insulin as it causes weight loss in a group of people that is…
- Trial name
- NCT01046721
- Testing
- Exenatide, Saline
- Where
- United Kingdom
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Feeding Behavior, Chronic Lung Disease
Pilot Study Comparing Different Modes of Non-invasive Ventilation for the Oral Feeding of Preterm Infants
Preterm infants born before 28 weeks gestation are at risk for lung disease and require oxygen and pressure to keep their lungs open. This usually involves a device called nasal continuous positive airway pressure (nCPAP).
- Trial name
- CHOMP (NCT02055339)
- Testing
- Fisher & Paykel heated humidified high flow nasal cannula, InfantFlow/RAM nasal continuous positive airway pressure
- Where
- Canada
- Volunteers
- 25 people
- Sponsor
- Mount Sinai Hospital, Canada