Clinical trials: Gas Exchange
HSCT, Respiratory
Assessing Pulmonary Changes in HSCT
This will be an un-blinded, open-label study of children and adults, including those who are being evaluated for or who have undergone HSCT, those with existing respiratory conditions and/or diagnosed gas-exchange impairment, and…
- Conditions
- HSCT, Respiratory, Gas Exchange Impairment
- Trial name
- NCT07823036
- Testing
- Hyperpolarized 129 Xenon
- Where
- United States
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Lung Diffusion, Acute Respiratory Failure
Evaluation of Gas Exchange by the Measurement of Lung Diffusion for Carbon Monoxide During General Anaesthesia
Mechanical ventilation is a therapeutic method used in order to keep gas exchange adequate to cell metabolism in patients with acute respiratory failure.
- Trial name
- NCT01503879
- Where
- Italy
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- San Gerardo Hospital
Chronic Respiratory Diseases, Cystic Fibrosis
Breath Analysis and Arterial Stiffness in Patients With Respiratory Diseases
Assessment of cardiovascular disorders using echocardiography and arterial stiffness; comparative noninvasive assessment of volatile organic compound (eVOC) exhale breath patterns in patients with different chronic respiratory…
- Conditions
- Chronic Respiratory Diseases, Cystic Fibrosis, Lymphangioleiomyomatosis, Hypersensitivity Pneumonitis
- Trial name
- NCT05727852
- Testing
- Breath test using the Compact PTR-TOF-MS, Portable cardiac monitor "CardioQvark", Assessment of arterial stiffness using the VaSera VS-1500N
- Where
- Russia
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Respiratory Failure
The Effects of Sound Energy on Pulmonary Gas Exchange
Study of the effects of sonic pressure oscillations on pulmonary gas exchange with added dead space.
- Trial name
- NCT02447731
- Testing
- Induction of sound waves in lungs by "sonic oscillator"
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Loma Linda University
Healhty
Validation of a New System for Measuring Ventilation and CO₂ Production
Gas exchange measurement systems are complex and require specialized facilities and expertise. As a result, access to these measurements remains limited, particularly in the field of sports performance.
- Trial name
- PAIRFS (NCT07677241)
- Testing
- ZoneX
- Where
- France
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Grenoble
Sinusitis
Sinonasal Gas Exchange Dynamics
Sinonasal gas exchange is facilitated by the unique anatomy and topography of the sinonasal interface that represents a collection of airfoils creating an aerodynamic structure.
- Trial name
- NCT01671098
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Louisiana State University Health Sciences Center Shreveport
Middle Ear Gas Exchange
Trans-Middle-Ear Mucosal Gas Exchange Project 1, Specific Aim 1
This study will measure the speed at which gases move between the middle-ear air-space and the blood flowing through the middle-ear lining.
- Trial name
- NCT01925482
- Testing
- 6%CO2, 25%O2, balance N2, 6% CO2, 0%O2, balance N2, 20%CO2, 6%O2, balance N2
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Cuneyt M. Alper
Healthy Volunteers
Gas Exchange and Cardiovascular Kinetics of Regulation - Effects of Short Term Changes in Gravity
The regulation of the cardiovascular respiratory system after changing environmental conditions or changes in work rates are essential for cognitive as well as physical functioning.
- Trial name
- GasEx (NCT02850354)
- Testing
- anti-g maneuvers
- Where
- France
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University Hospital, Caen
Cardio Respiratory Arrest, Cardiac Death
Ventilation in Cardiac Arrest
Over the last decades, research in cardiopulmonary resuscitation was primarily focused on uninterrupted chest compressions to restore sufficient circulation.
- Conditions
- Cardio Respiratory Arrest, Cardiac Death, Ventilation Therapy; Complications, Apnea
- Trial name
- VICA (NCT04657393)
- Testing
- mechanical ventilation
- Where
- Austria
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Prostatic Neoplasm, Urinary Bladder Neoplasm
The Effect of Prolonged Inspiratory Time on Gas Exchange During Robot-assisted Laparoscopic Surgery With Steep Trendelenburg Position : A Crossover Randomized Clinical Trial
Gas exchange disturbance frequently occurs in steep Trendelenburg position during robot-assisted laparoscopic prostatectomy or cystectomy.
- Trial name
- NCT02966535
- Testing
- Adjustment of Mechanical Ventilator Inspiratory to expiratory time ratio (1:2 to 1:1), Adjustment of Mechanical Ventilator Inspiratory to expiratory time ratio (1:1 to 1:2)
- Where
- South Korea
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Avalanche Burial
Impact of CO2 Absorption on Gas Exchange and Ventilation Patterns While Breathing Into a Snow Air Pocket
Asphyxia is by far the most common cause of death after critical avalanche burial. The presence of an air pocket increases the survival chances, but expired air rich in carbon dioxide (CO2) progressively displaces oxygen (O2) in…
- Trial name
- AVACO2R (NCT06895759)
- Testing
- Soda lime
- Where
- Italy
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Institute of Mountain Emergency Medicine
Respiratory Support
Effects of Nasal High Flow Therapy on Ventilation and Gas Exchange in Healthy Newborns
Nasal High Flow (NHF) and CPAP are established forms of respiratory support in neonates and often produce similar clinical outcomes.
- Trial name
- NCT02632825
- Testing
- Nasal High Flow
- Where
- Armenia
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Research Center of Maternal and Child Health Protection, Armenia
Accident Caused by Snow Avalanche
Hypercapnia and Gas Exchange Under the Avalanche Snow Model (HyperAvaSM)
The aim of the study is to investigate respiratory parameters of a person in the simulated avalanche snow and consequent use of the measured data for development of a mathematical-physical model of breathing during increasing…
- Trial name
- HyperAvaSM (NCT02521272)
- Testing
- Breathing in the simulated avalanche snow., air pocket
- Where
- Czechia
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Czech Technical University in Prague