Clinical trials: Inhalation; Gas
Nitrous Oxide, Dentistry
Demand-Driven Method for Gas Delivery in a Dental Setting
This study compares two methods of gas delivery in a dental setting: 1) demand-driven (DD) and 2) free-flow (FF). Nitrous oxide and oxygen sedation (NOS) is a common form of minimal sedation for adult and paediatric patients…
- Conditions
- Nitrous Oxide, Dentistry, Drug Delivery System, Comfort
- Trial name
- NCT04305990
- Testing
- Demand-driven delivery method, Free-flow delivery method
- Where
- Canada
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Toronto
General Anesthesia
Continuous and Discontinuous Determination of Propofol Concentration in Breathing Gas
This study should compare the propofol concentration in breathing gas and in plasma (before and) after lung passage. Propofol concentrations in breathing gas are continuously measured by a sensor.
- Trial name
- NCT00532402
- Where
- 2 sites in Germany
- Volunteers
- 16 people
- Sponsor
- University of Luebeck
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
Waste Anesthetic Gas (WAG) Emanating From Patients Post-operative Recovery
Evaluation and Control of WAG in PACU Within Patient and Caregiver Breathing Zone
The purpose of this study is to evaluate anesthetic gas in the PACU within patient and caregiver breathing zones.
- Trial name
- NCT02428413
- Testing
- ISO-Gard Mask, Standard oxygen mask
- Volunteers
- 125 people
- Sponsor
- Teleflex
Anesthesia, Inhalation; Vapor
Decreasing Environmental Impact and Costs of Using Inhalational Anesthetic With a Carbon Dioxide Membrane Filter System
Efficient inhalational anesthetic delivery requires the use of low-flow air and oxygen to reduce drug waste and minimize workspace contamination and environmental pollution.
- Trial name
- NCT04210570
- Testing
- Memsorb, Chemical granulate absorber
- Where
- Canada
- Volunteers
- 510 people
- Sponsor
- Western University, Canada
Work of Breathing, ARDS
Breathing Pattern, WOB and Gas Exchange in Patients With Acute Respiratory Distress Syndrome During the Spontaneous Breathing Trial
There is little evidence about the mechanical characteristics and muscular function in patients with Acute Respiratory Distress Syndrome (ARDS) at the time of weaning of the mechanical ventilation, as well as the behavior of the…
- Conditions
- Work of Breathing, ARDS, Weaning Failure
- Trial name
- NCT04209270
- Where
- Argentina
- Volunteers
- 37 people
- Sponsor
- Sanatorio de la Trinidad Mitre
Inhalation; Gas
Sevoflurane Wash in Method Using Conventional Flows Versus Low Flows of 0.5L
The goal of this observational study is to to evaluate a technique of initiating Sevoflurane low-flow anesthesia which is simple, has a quick wash-in and minimises gas consumption without compromising the safety when compared to…
- Trial name
- NCT06209112
- Testing
- Sevoflurane
- Where
- Oman
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Royal Hospital, Oman
Pulmonary Disease, Chronic Obstructive
A Comparison of the Effects of Tiotropium Inhalation qd and Salmeterol Inhalation Bid on Arterial Blood Gases.
To evaluate changes in PaO2 following inhalation of Tiotropium by HandiHaler compared to Salmeterol MDI in patients with moderate to severe COPD.
- Trial name
- NCT00274534
- Testing
- Tiotropium, Salmeterol
- Where
- 2 sites in United States
- Volunteers
- 36 people
- Sponsor
- Boehringer Ingelheim
Healthy
Safety of Inhaled Hydrogen Gas Mixtures in Healthy Volunteers
Hydrogen gas may decrease the degree or incidence of brain injury following ischemia. The purpose of this study is to determine the safety and tolerability of inhaled hydrogen gas at the dose exposures required for a clinical…
- Trial name
- NCT04046211
- Testing
- Hydrogen
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Boston Children's Hospital
Neurosurgery
Correlation of PaCO2 to the Inspired and Expired Oxygen Gradient
The purpose of this study is to evaluate whether a correlation exists between the partial pressure of carbon dioxide existing within arterial blood and the gradient between inhaled and exhaled fractions of oxygen.
- Trial name
- O2 Fraction (NCT01513213)
- Where
- United States
- Volunteers
- 65 people
- Sponsor
- Swedish Medical Center
Hyperoxia, Hyperoxemia
Hyperoxemia and Oxygen Reserve Index During Neurointerventional Anesthesia
The goal of this observational study is to learn how often high blood oxygen levels (hyperoxemia) occur in adults receiving general anesthesia for planned (elective) neurointerventional procedures, such as brain aneurysm coiling…
- Conditions
- Hyperoxia, Hyperoxemia, Cerebrovascular Disorders, Intracranial Aneurysms
- Trial name
- NCT07859982
- Testing
- Oxygen Reserve Index Monitoring (Observational)
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Acute Mountain Sickness
Voluntary Isocapnic Hyperpnea in Hypoxia to Mitigate Acute Mountain Sickness
This study investigates the effects of a brief Voluntary Isocapnic Hyperpnoea (VIH) on Acute Mountain Sickness (AMS) symptoms, SpO₂, blood pressure, and blood gas homeostasis in normobaric hypoxia, to evaluate whether such…
- Trial name
- NCT07126834
- Testing
- VIH
- Where
- Poland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Institute of Sport - National Research Institute, Poland
Exposure to Environmental Pollution, Adverse Effect of Unspecified General Anesthetic
Anesthetic Gas Leakage in Children During Tonsillectomy: a Comparison of Cuffed and Uncuffed Tracheal Tubes
Fires and operating room pollution may occur when anesthesia gases leak into the oropharynx during airway surgery. Investigators sought to measure the concentrations of anesthetic gases that leak into the mouth of children…
- Trial name
- NCT02725164
- Testing
- oxygen concentration, nitrous oxide concentration, carbon dioxide concentration
- Volunteers
- 31 people
- Sponsor
- State University of New York at Buffalo
Healthy Volunteers
Development of Hardware and Software for Pulmonary Magnetic Resonance Imaging Using Inhaled Tracer Gases
This is a single centre study. The overarching hypothesis of this study is that MRI with inhaled tracer gases can provide high quality images of lung function to complement conventional 1H MRI.
- Trial name
- NCT04726618
- Testing
- Hyperpolarized 129-xenon gas and Perfluoropropane gas
- Where
- Canada
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Healthy Volunteers - Male and Female
¹⁹F (Perfluoropropane) MRI
Healthy volunteers aged 18 to 85 will undergo ¹⁹F (perfluoropropane) MRI to support the development of imaging sequences, reconstruction algorithms, and hardware necessary for acquiring high-spatial resolution lung images.
- Trial name
- NCT07305532
- Testing
- 19F(perfluoropropane) MRI
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Alexei Ouriadov
Coronavirus Infections, Pneumonia, Viral
Nitric Oxide Gas Inhalation Therapy for Mild/Moderate COVID-19
The scientific community is in search for novel therapies that can help to face the ongoing epidemics of novel Coronavirus (SARS-Cov-2) originated in China in December 2019.
- Conditions
- Coronavirus Infections, Pneumonia, Viral, Acute Respiratory Distress Syndrome
- Trial name
- NoCovid (NCT04305457)
- Testing
- Nitric Oxide
- Where
- 2 sites in United States
- Volunteers
- 62 people
- Sponsor
- Massachusetts General Hospital
Chronic Obstructive Pulmonary Disease
The Effect of Inhaled Nitric Oxide on Pulmonary Gas-exchange in COPD
Chronic Obstructive Pulmonary Disease (COPD) is a lung disorder commonly caused by smoking, which makes breathing more difficult.
- Trial name
- iNO (NCT04231760)
- Testing
- Inhaled Nitric Oxide
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Postoperative Pain, Gas Bloat Syndrome
The Effect of Kinesio Taping and Breathing Exercises on Pain Management
A randomised clinical trial in a single centre.The aim of this study is to evaluate the effect of kinesio taping and breathing exercises on pain management applied after benign gynecological abdominal operations.
- Conditions
- Postoperative Pain, Gas Bloat Syndrome, Defecation Disorders
- Trial name
- NCT04412122
- Testing
- Kinesio Taping, Breathing Exercise, Kinesio Taping+Breathing Exercise
- Where
- Turkey (Türkiye)
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Çankırı Karatekin University
Male Urogenital Diseases, Female Urogenital Diseases
Comparison of Gas Consumption From Two Different Anesthesia Machines
Low flow anesthesia (LFA) is used less than desirable, partly because one has considered that there might be danger of underdosing of anesthesia gas and thus risk of awareness under anesthesia.LFA has several advantages such as…
- Trial name
- NCT02774031
- Testing
- Aisys with Et control, Aisys conventional, Flow-i with ACG
- Where
- Norway
- Volunteers
- 147 people
- Sponsor
- St. Olavs Hospital
Extreme Prematurity - Less Than 28 Weeks, Respiratory Distress Syndrome in Premature Infants
Study of Respiratory Physiology During High Flow Nasal Cannula Treatment in Preterm Neonates.
The most commonly used noninvasive respiratory support in preterm babies is Continuous Positive Airway Pressure (CPAP), which provides extra breathing support to babies who are breathing by themselves).
- Trial name
- NCT02200900
- Testing
- Pharyngeal pressure, Transcutaneous carbon dioxide, Pharyngeal gas concentrations
- Where
- United Kingdom
- Volunteers
- 45 people
- Sponsor
- Newcastle-upon-Tyne Hospitals NHS Trust