Clinical trials: Pulmonary Gas Exchange
Respiratory Distress Syndrome, Adult, Critical Illness
Measuring Heart and Lung Function in Critical Care
This is a feasibility study of the use of a novel technique called 'Inspiwave' to measure heart and lung function in adult patients in critical care.
- Conditions
- Respiratory Distress Syndrome, Adult, Critical Illness, Mechanical Ventilation Complication, Haemodynamic Instability
- Trial name
- NCT03424798
- Testing
- Inspiwave
- Where
- United Kingdom
- Volunteers
- 80 people
- Sponsor
- University of Oxford
One-lung Ventilation (OLV), Low-flow Anesthesia
Effects of Low-Flow Sevoflurane Anesthesia on Pulmonary Function During One-Lung Ventilation
This prospective observational study aims to evaluate the effects of low-flow sevoflurane anesthesia on respiratory mechanics, gas exchange, and postoperative pulmonary function in patients undergoing one-lung ventilation (OLV)…
- Conditions
- One-lung Ventilation (OLV), Low-flow Anesthesia, Thoracic Surgery, Respiratory Mechanics
- Trial name
- OLV-LOWSEVO (NCT07085546)
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people
- Sponsor
- Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital
Acute Respiratory Distress Syndrome
Effects of SEvoflurane on Gas Exchange and Inflammation in Patients With ARDS (SEGA Study)
Numerous trials support the efficacy and safety of volatile anesthetic agents, namely inhalation of sevoflurane through dedicated devices, for the sedation of ICU patients.
- Trial name
- SEGA (NCT02166853)
- Testing
- sevoflurane, midazolam
- Where
- France
- Volunteers
- 50 people
- Sponsor
- University Hospital, Clermont-Ferrand
Video Assisted Thoracic Surgery (VATS), Postoperative Complications
Clinical Effects of Intraoperative Heat and Moisture Exchange Systems During Thoracic Surgery: A Prospective Observational Cohort Study
General anesthesia with endotracheal intubation bypasses the physiological warming and humidification functions of the upper airway, allowing cold and dry gases to reach the lower respiratory tract.
- Conditions
- Video Assisted Thoracic Surgery (VATS), Postoperative Complications, Pulmonary Complications in Surgical Patients, Humidification
- Trial name
- NCT07729319
- Testing
- Active Heated Humidification, Heat and Moisture Exchanger
- Where
- Turkey (Türkiye)
- Volunteers
- 200 people
- Sponsor
- Marmara University
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
Laparoscopic Surgery, Positive End-Expiratory Pressure
Recruitment Maneuvers and PEEP-guided Electrical Impedance Tomography for Abdominal Laparoscopic Surgery Patients
Abdominal laparoscopy is widely utilized due to its benefits, including minimal invasiveness, improved cosmetic outcomes, and shorter hospital stays.
- Conditions
- Laparoscopic Surgery, Positive End-Expiratory Pressure, Electrical Impedance Tomography
- Trial name
- PEEP-EIT (NCT06850844)
- Testing
- electrical impedance tomography, Conventional Ventilation
- Where
- Vietnam
- Volunteers
- 70 people
- Sponsor
- Nguyen Dang Thu
Cardiorespiratory Fitness, Metabolic Health
Validation of a Novel Incremental Step Test for Assessment of Cardiopulmonary Fitness and Ventilatory Thresholds in Adults
The purpose of this single-group diagnostic validation and test-retest reliability study is to determine whether a novel Incremental Step Test (IST) can accurately assess cardiorespiratory fitness and ventilatory thresholds in…
- Conditions
- Cardiorespiratory Fitness, Metabolic Health, Cardiac Function, Pulmonary Function
- Trial name
- VALID-IST (NCT07829003)
- Testing
- Cardiopulmonary Exercise Test, Incremental Step Test
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Heriot-Watt University
Chronic Obstructive Pulmonary Disease, Pulmonary Hypertension
Sildenafil Effects on Pulmonary Haemodynamics and Gas Exchange in Chronic Obstructive Pulmonary Disease (COPD)
Sildenafil is a phosphodiesterase-5 inhibitor that has been approved for the treatment of pulmonary arterial hypertension with orphan drug designation. Sildenafil modulates the nitric oxide (NO) pathway in the vessel wall.
- Trial name
- SIL-COPD-01 (NCT00491803)
- Testing
- Sildenafil
- Where
- Spain
- Volunteers
- 20 people
- Sponsor
- Hospital Clinic of Barcelona
SARS Pneumonia
Respiratory Mechanics and Gas Exchange in Patients With COVID-19 and Hypoxemic Acute Respiratory Failure
Data on respiratory mechanics and gas exchange in acute respiratory failure in COVID-19 patients is limited. Knowledge of respiratory mechanics and gas exchange in COVID-19 can lead to different selection of mechanical…
- Trial name
- COVID-VENT (NCT04445961)
- Testing
- Respiratory mechanics measurement, Gas exchange measurement
- Where
- 3 sites in Russia
- Volunteers
- 117 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
COPD
Pulmonary Gas Exchange Abnormalities in Patients With Mild COPD
People with mild chronic obstructive pulmonary disease (COPD) can have significant physiological abnormalities and breathing inefficiency which become more pronounced during the stress of exercise, leading to intolerable…
- Trial name
- NCT02346604
- Where
- Canada
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Queen's University
Ventilator Lung, Gas Exchange
A Pilot Validation Study of Continuous CO2-based End-expiratory Lung Volume Measurements in Humans.
The capnodynamic method non-invasively calculates effective lung volume (ELV) continuously during surgery. In this study ELV is compared to functionalresidual capacity (FRC) measured with Nitrogen Multiple Breath Wash out (NMBW)…
- Conditions
- Ventilator Lung, Gas Exchange, Pulmonary Function
- Trial name
- ELVIS (NCT03501446)
- Where
- Sweden
- Volunteers
- 23 people
- Sponsor
- Karolinska Institutet
Acute Lung Injury, ARDS
The Specific Elastance in Acute Lung Injury/Acute Respiratory Distress Syndrome (ALI/ARDS) Patients
The investigators aim to study the specific elastance in ALI/ARDS patients during invasive mechanical ventilation.
- Trial name
- NCT00143468
- Testing
- mechanical ventilation
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Policlinico Hospital
COPD (Chronic Obstructive Pulmonary Disease)
HFNC Versus NIV in Hypercapneic COPD Patients
Aim: To compare gas exchange trends, clinical outcomes, and tolerability between HFNC and NIV in COPD patients with mild-to-moderate hypercapnic respiratory failure.
- Trial name
- NCT07854210
- Testing
- high flow nasal cannula, non invasive ventilation
- Where
- Egypt
- Volunteers
- 70 people
- Sponsor
- Mohammed Shehta
Artificial Respiration, Surgery
Effects of Mechanical Ventilation Guided by Transpulmonary Pressure on Gas Exchange During Robotic Surgery: a Pilot Study
Laparoscopy and robotic techniques are widespread procedures for pelvic gynecologic, urologic and abdominal surgery often performed in Trendelenburg position, with the application of pneumoperitoneum by inflating carbon dioxide.
- Conditions
- Artificial Respiration, Surgery, Atelectasis
- Trial name
- Vetrapo (NCT03153592)
- Testing
- Transpulmonary pressure driven ventilation strategy, Conventional ventilation strategy
- Where
- Italy
- Volunteers
- 28 people
- Sponsor
- Azienda Ospedaliero Universitaria Maggiore della Carita
Chronic Obstructive Pulmonary Disease (COPD)
FITME Study: Formulating Individualised Exercise Prescription in Chronic Obstructive Pulmonary Disease
This randomised controlled trial aims to: i) compare the power output at the first metabolic threshold (WMT1) between the MT1 and the six-minute walking test (6MWT)-based cardiorespiratory exercise prescriptions in chronic…
- Trial name
- FITME (NCT07792642)
- Testing
- Pulmonary rehabilitation programme
- Where
- Portugal
- Volunteers
- 46 people
- Sponsor
- Aveiro University
Idiopathic Pulmonary Fibrosis, Hypersensitivity Pneumonitis
129Xe Gas Exchange Imaging in IPF and cHP: A Reliability Study
This research is a study to test the reliability of Hyperpolarized Xenon MRI (HXe MRI) as a biomarker in interstitial lung disease.
- Trial name
- NCT04677426
- Testing
- Hyperpolarized Xe129
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Acute Respiratory Distress Syndrome, Ventilation Therapy; Complications
Phrenic Nerve Stimulation-Induced Lung ReAeration Trial
The Lungpacer PROTECT Diaphragm Pacing Therapy System (DPTS) is a temporary, percutaneously-placed, transvenous, phrenic nerve-stimulating device intended to stimulate the diaphragm to preserve and improve inspiratory muscle…
- Trial name
- PIRAT (NCT04844892)
- Testing
- Lungpacer PROTECT Diaphragm Pacing Therapy
- Where
- France
- Volunteers
- 13 people
- Sponsor
- Lungpacer Medical Inc.
Adult Respiratory Distress Syndrome
Prevention of Lung Injury Induced by Mechanical Ventilation in Acute Respiratory Distress Syndrome ARDS Patients
Given the huge volume of mechanically ventilated patients at risk of ARDS, optimizing hematosis by limiting pulmonary and systemic aggression associated with artificial ventilation techniques is a key objective if we are to…
- Trial name
- PULMODEL (NCT06835881)
- Where
- France
- Volunteers
- 30 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
ILD
Gas Exchange MRI to Visualize Regional Therapy Response in Interstitial Lung Disease
The purpose of this multi-centered, NIH-sponsored study is to to develop an optimal protocol for using non-invasive 129Xe gas exchange MRI to detect changing disease activity in interstitial lung diseases (ILDs).
- Trial name
- Xe MRI in ILD (NCT06012500)
- Testing
- Xenon-129
- Where
- United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Pulmonary Disease, Respiratory System Abnormalities
Distribution of Ventilation, Respiratory Drive and Gas Exchange: Measurements and Monitoring
Respiratory physiology involves a complex interplay of elements including control of breathing, respiratory drive, pulmonary mechanics, distribution of ventilation and gas exchange.
- Conditions
- Pulmonary Disease, Respiratory System Abnormalities, OSA, Respiratory Failure
- Trial name
- NCT05462600
- Testing
- Position change
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego