Clinical trials: Dysbarism
Middle Ear Barotrauma
Effects of Hyperbaric Oxygen Therapy on Middle and Inner Ear Functions
The goal of this observational study is to measure the effect of hyperbaric oxygen therapy on middle ear pressure in order to predict the risk factors for middle ear barotrauma also, to assess its effects on hearing functions of…
- Trial name
- HBOT (NCT06209021)
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Assiut University
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
Decompression Sickness, SCUBA Diving
High Intensity Cycling Before SCUBA Diving Reduces Post-decompression Microparticle Production and Neutrophil Activation
The purpose of this study is to determine the impact of high intensity,anaerobic exercise, in the form of cycling, on SCUBA diving.
- Trial name
- NCT02064361
- Testing
- High intensity exercise
- Where
- 2 sites in United States, Croatia
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Split
Barotrauma;Ear, Tympanum; Perforation
Effectiveness of Sequential Eustachian Tube Maneuvers in Hyperbaric Oxygen Conditions
Middle ear barotrauma represents the predominant complication associated with hyperbaric oxygen therapy, manifesting symptoms ranging from otalgia to tympanic membrane perforation.
- Trial name
- NCT06408363
- Testing
- Maneuver group
- Where
- Brazil
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hospital Felicio Rocho
Auditory Diseases, Central
Comparing Hearing Aid Fitting Methods in Blast-exposed Veterans
Since 2000, at least 250,000 U.S. Service members have experienced a blast-related mild traumatic brain injury. A retrospective analysis of over 100,000 post-9/11 Veterans shows that blast injury more than doubles the risk of a…
- Trial name
- SBA (NCT06309264)
- Testing
- Phonak Lumina P90
- Where
- 3 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Middle-ear Barotrauma
Gas Supply, Demand and Middle Ear Gas Balance -- Fly/Dive Simulation
This study will determine if newly developed and more standard tests of Eustachian tube function can identify those persons who have ear pain (barotrauma) or develop middle-ear inflammation and/or fluid (barotitis) when they are…
- Trial name
- NCT01976429
- Testing
- flight/diving simulation, ET function testing at ambient pressure, nasal video-endoscopy
- Where
- United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Decompression Sickness, Barotrauma
Health, Fitness, and Safety Knowledge as Determinants of Adverse Events in Recreational Divers in Poland
This cross-sectional online survey study assesses health status, physical fitness, and safety knowledge as potential determinants of diving-related adverse events among recreational divers in Poland.
- Conditions
- Decompression Sickness, Barotrauma, Recreational Diving
- Trial name
- DIVE-PL (NCT07855861)
- Testing
- Anonymous online questionnaire
- Where
- 2 sites in Poland
- Volunteers
- 384 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok
Barotrauma Epidemiology
Diver Ear, Nose and Throat Barotrauma Epidemiology
Ear, nose and throat barotrauma are the most frequently encountered accidents during diving. One study related to recreational diving reports that ENT barotrauma concern 10% of dives with experimented divers and 30% with novice…
- Trial name
- BTORL PAF (NCT04647591)
- Testing
- Questionnaires
- Where
- 7 sites in France
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Direction Centrale du Service de Santé des Armées
Blast Overpressure Exposure, Blast Injuries
Biomarkers of Brain Health in Blast Overpressure Exposure
The purpose of this study is to learn whether headsets that measure brainwaves can find early signs of changes in brain health in tactical operators who train near explosive blasts.
- Conditions
- Blast Overpressure Exposure, Blast Injuries, Brain Health, Occupational Exposure
- Trial name
- NCT07783048
- Testing
- Blast overpressure exposure during explosive breaching training
- Where
- Canada
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Neurable, Inc
Post-Traumatic Stress Disorder, Blast Injury
Virtual Reality Therapy and Imaging in Combat Veterans With Blast Injury and Posttraumatic Stress Disorder
The main purpose of this study is to determine whether functional magnetic resonance imaging (fMRI), can distinguish between service members with and without traumatic brain injury (TBI), as well as those with posttraumatic…
- Trial name
- ViRTICo-BP (NCT01990547)
- Where
- United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Walter Reed National Military Medical Center
Decompression Sickness
Rhu-pGSN to Mitigate Proinflammatory Responses to Decompression in Healthy SCUBA Divers
Healthy trained SCUBA divers will be randomized into three groups and exposed to a high-pressure profile in a hyperbaric chamber.
- Trial name
- NCT06216366
- Testing
- Sodium Chloride 0.9% Inj pre-exposure, Sodium Chloride 0.9% Inj post-exposure, Recombinant human plasma gelsolin pre-exposure
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- BioAegis Therapeutics Inc.
Decompression Sickness, Endothelial Dysfunction
Exercise and Repetitive Diving
SCUBA diving frequently involves repetitive exposures over multiple days. The goal of this study was to see how exercise impacts microparticles (MPs), endothelial function, and venous gas emboli (VGE) over a series of dives.
- Conditions
- Decompression Sickness, Endothelial Dysfunction, Neutrophil Activation, Venous Gas Emboli
- Trial name
- NCT02118207
- Testing
- Aerobic running exercise
- Where
- 2 sites in United States, Croatia
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Split
Diving Medicine, Inflammation
Inflammatory and Cerebrospinal Biochemical Markers in Blood After Trimix Diving
Research hypothesis Diving to depths up to 90msw with an oxygen partial pressure of 130kPa in the breathing gas will affect the central nervous system.
- Conditions
- Diving Medicine, Inflammation, Central Nervous System Injury
- Trial name
- TriMix17-18 (NCT03190252)
- Testing
- Exposure to oxygen partial pressure of 130 kPa, Exposure to ambient pressure of maximum 11 ATA
- Where
- Sweden
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Sahlgrenska University Hospital
Decompression Sickness, Acute Mountain Sickness
Decompression Tables for Diving at Altitude
The aims of this proposal are to test current USN procedures for adjusting decompression procedures during air diving at 8,000 and 10,000 ft altitude and to provide a decompression algorithm for no-stop dives to 100 feet of sea…
- Trial name
- NCT03390335
- Testing
- Pressure, Breathing Gas
- Where
- United States
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Duke University
Foramen Ovale, Patent, Decompression Sickness
Decompression Sickness in Divers With or Without Patent Foramen Ovale
The investigators will prospectively estimate incidences of decompression sickness in SCUBA divers with or without patent foramen ovale (PFO).
- Trial name
- DIVER-PFO (NCT02432131)
- Where
- South Korea
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sejong General Hospital
Blast Injuries, Brain Injuries
Central Auditory Processing Deficits Associated With Blast Exposure
The current conflicts in Afghanistan and Iraq have resulted in unprecedented rates of exposure to high-intensity blasts and resulting brain injury.
- Conditions
- Blast Injuries, Brain Injuries, Age Factors
- Trial name
- NCT01567020
- Testing
- Diagnostic
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Decompression Sickness
Decreases in Diffusing Lung Capacity for Carbon Monoxide (DLCO) in Occupational Divers and Their Impact on Decompression Sickness Risks
Diving disorders and particularly Decompression sickness (DCS) represent a major concern in recreational and occupational pressure-related activities.
- Trial name
- DACODEC (NCT02736006)
- Testing
- 20 meters air dive
- Where
- France
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University Hospital, Brest
Decompression Sickness
Impact of Hyperoxia and Involvement of the Immune System in Diving Accident
The impact of oxygen therapy in many pathologies has been subject of recent work, arguing both favourable and harmful effects. Consequently, one can wonder about the influence of hyperoxic gas mixture during diving on the genesis…
- Trial name
- OXYDIVE (NCT04791488)
- Testing
- Hyperbaric oxygen therapy, Diving simulation
- Where
- France
- Volunteers
- 265 people, healthy volunteers welcome
- Sponsor
- Direction Centrale du Service de Santé des Armées
Decompression Sickness
NASA Exercise Prebreathe Study
This study evaluates oxygen prebreathe protocols and exercise conditions to reduce risk of decompression sickness during simulated extravehicular activity.
- Trial name
- NCT07702539
- Testing
- Oxygen Prebreathe and Hypobaric Exposure
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Duke University
Decompression Sickness
NASA Prebreathe Study
This study will validate the experimental method and chamber facility at the Duke Center for Hyperbaric Medicine \& Environmental Physiology and test team capabilities to support NASA decompression sickness (DCS) studies.
- Trial name
- NASA Prebreath (NCT06740305)
- Testing
- Altitude, 100% Oxygen
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Duke University