Clinical trials: Airway Obstruction Upper
Airway Obstruction, Dyspnea
Heliox in Experimental Upper Airway Obstruction
Currently it is common medical wisdom that HELIOX (mixture of Helium in Oxygen) with a fraction of Helium below 60% is not effective in reducing airway obstruction.
- Trial name
- NCT00788788
- Testing
- HELIOX
- Where
- Germany
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Witten/Herdecke
Overjet, Dental
Sleep, Upper Airway and Dental Occlusion in Children With Large Overjet
This project examines sleep (e.g. prevalence of obstructive sleep apnea(OSA)), dimension of upper airway, jaw function, well-being and quality of life in children with large overjet compared to a control group.
- Trial name
- NCT04964830
- Testing
- Orthodontic treatment with functional appliance (MAD)
- Where
- Denmark
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Airway Obstruction
Maxillary Expansion Effects in Children With Upper Airway Obstruction
The most frequent causes of mouth breathers are the adenotonsillar hypertrophy. Adenotonsillectomy is the main choice for the elimination of the obstruction.
- Trial name
- NCT03004300
- Testing
- Rapid maxillary expansion, Adenotonsillectomy
- Where
- Brazil
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Universidade Federal de Goias
Obstructive Sleep Apnea
Use of High-resolution Manometry to Detect Upper Airway Obstruction During Sleep
Obstructive sleep apnea (OSA) is a major public health issue in both children and adults, present in 1-5% of children and 10-30% of adults.
- Trial name
- NCT04139499
- Testing
- Drug-induced sleep endoscopy (DISE), High-resolution manometry (HRM):
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Mask Ventilation, Airway Obstruction Upper
The Articulated Oral Airway as an Aid to Mask Ventilation
The Articulating Oral Airway (AOA) is a novel oral airway which actively displaces the tongue, allowing for a greater cross-sectional area for mask ventilation.
- Conditions
- Mask Ventilation, Airway Obstruction Upper, Airway Management
- Trial name
- NCT03144089
- Testing
- Articulated Oral Airway, Guedel oral airway (active comparator)
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Ron Abrons
Nasal Obstruction, Exposure to Pollution
Rhinopharyngeal Retrograde Clearance is Effective to Adequate Upper Airways Function in Adults
Professionals working in polluted areas may present increased clinical airways symptoms and dysfunction. Rhinopharyngeal retrograde clearance (RRC) has been used to improve mucus clearance in infants with bronchitis and…
- Trial name
- NCT01976039
- Testing
- rhinopharyngeal retrograde clearance (RRC)
- Where
- 2 sites in Brazil
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Sleep-disordered Breathing, Snoring
Hemodynamics Response to Upper Airway Obstruction in Marfan Syndrome
Upper airway obstruction (UAO) is an unrecognized source of hemodynamic stress that may contribute to aortic adverse events in persons with Marfan Syndrome (MFS).
- Trial name
- MSB (NCT03985657)
- Testing
- CPAP
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Healthy
Head Position Angles in Children
Inexperienced rescuers may encounter severe problems in an unconscious patient in opening and maintaining an upper airway patent.
- Trial name
- NCT00532636
- Testing
- Ventilation
- Where
- Austria
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Medical University Innsbruck
Tonsillar Hypertrophy, Upper Airway Obstruction
Safety and Efficacy of the Irreversible Electroporation (IRE) System for Adenotonsillar Hypertrophy in Children
This is a multi-center, prospective, open-label, traditional feasibility study with a before-after study design. The study is designed to evaluate the safety and efficacy of an Irreversible Electroporation (IRE) System for the…
- Trial name
- NCT06960239
- Testing
- IRE System
- Where
- 2 sites in Romania, Uzbekistan
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- ENTire Medical Ltd.
Healthy Subjects, Chronic Obstructive Pulmonary Disease
Multicenter Study of Impulse Oscillometry in Chinese
The purpose of this study is to establish the reference values of impulse oscillometry (IOS) in healthy Chinese, and compare the indices of IOS in patients with lung disease, such as chronic obstructive pulmonary disease (COPD)…
- Conditions
- Healthy Subjects, Chronic Obstructive Pulmonary Disease, Asthma, Interstitial Lung Disease
- Trial name
- NCT03467880
- Testing
- Clinical Observation
- Where
- 2 sites in China
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- Guangzhou Institute of Respiratory Disease
Sleep Apnea, Obstructive
Assessment of PPG & PAT to Detect Upper Airway Obstruction in Patients With Obstructive Sleep Apnea
The goal of this study is to collect raw waveform data for two separate noninvasive methods, both of which may be useful for the assessment of upper airway obstruction.
- Trial name
- NCT01831583
- Testing
- Measurement of PPG waveforms, Measurement of Pulse Arrival Time (PAT)
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Sotera Wireless, Inc.
Upper Airway Obstruction
Identification of Airway Structures Necessary for Airway Access Via the Skin
Literature shows that anaesthetists have a low success-rate when trying to access the airway percutaneously in case of failed ventilation and intubation.
- Trial name
- NCT02613429
- Testing
- identification of the airway by from the cranial end, identification of the airway from the distal end
- Where
- 2 sites in Denmark
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Apnea, Airway Obstruction, Nasal
Upper Airway's Pressure Drop Analyses After Mandibular Advancement and Maxillary Expansion
Breathing is a crucial function for everyone. Breathing impairment in children could lead to behavioral and cognitive problems at least.
- Conditions
- Apnea, Airway Obstruction, Nasal, Mandible Small, Maxillary Hypoplasia
- Trial name
- NCT04190953
- Testing
- Twin block then Hyrax, Hyrax then Twin block
- Where
- Canada
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Airway Complication of Anesthesia
Ultrasound Guided Superior Laryngeal Nerve Block Compared With Blind Block Technique
The aim of this study is to evaluate the effect of ultrasound guided technique for block of internal branch of superior laryngeal nerve in surgical patient in comparison to blind anatomical technique.
- Trial name
- NCT04623645
- Testing
- ultrasound technique
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
COPD, Asthma (Diagnosis)
A Study to Evaluate the Diagnostic Performance of Portable Oscillometry Across Chronic Respiratory Diseases
This is a prospective, multicenter, observational cohort study enrolling approximately 4,000 subjects across about 50 centers, including patients with COPD (confirmed and suspected), asthma (confirmed and suspected)…
- Conditions
- COPD, Asthma (Diagnosis), Chronic Respiratory Diseases, Bronchiectasis
- Trial name
- NCT07631507
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital of Guangzhou Medical University
Obstructive Sleep Apnea
Mechanisms of Upper Airway Obstruction
The current study is designed to examine underlying mechanisms of action of lingual muscles in the maintenance of airway patency during sleep.
- Trial name
- DISE-CAD (NCT04322097)
- Testing
- Hypoglossal Nerve Stimulation
- Where
- United States
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Upper Airway Obstruction
Phamacological Reversal of Airway Instability During Sedation
The investigators are attempting to demonstrate a decrease in the frequency and severity of sedation-induced respiratory arrhythmias(central and obstructive apneas) with pharmacological pre-treatment in this pilot project and…
- Trial name
- PHYSO (NCT01171118)
- Testing
- Physostigmine, Oxygen
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Sleep Disordered Breathing, Upper Airway Collapsibility
Incidence of Sleep-disordered Breathing and Upper Airway Collapsibility in Postpartum Patients and Its Intervention
The investigators hypothesized that sleeping in a 45 degrees elevated body position decreases the likelihood of upper airway vulnerability to collapse early after delivery.
- Conditions
- Sleep Disordered Breathing, Upper Airway Collapsibility, Upper Airway Obstruction
- Trial name
- NCT01719224
- Testing
- elevated body position, supine body position
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital