Clinical Trials Logo
  1. Home
  2. Obstructive Sleep Apnea Syndrome
  3. NCT01210703

Acoustic Pharyngometry in Obstructive Sleep Apnea Syndrome Patients, With Indication of Continuous Positive Air Pressure — APOSAS  

Obstructive Sleep Apnea Syndrome Clinical Trial

Official title:
Evaluation of Effect of Continuous Positive Air Pressure (CPAP) on Upper Airway Dimensions, by Acoustic Pharyngometry (AP), in Severe Obstructive Sleep Apnea Syndrome (OSAS) and Primary Snore Patients

Clinical Trial Summary

Acoustic Pharyngometry (AP) is a method of measurement of Transversal Sectional Areas (TSA) and Volumes of oral cavity and pharynx, based on acoustic waves. The aim of this study is to describe changes on oropharynx dimensions caused by CPAP (Continuous Positive Air Pressure) in patients with severe Obstructive Sleep Apnea Syndrome when compared with patients with Primary Snore, using AP. The exam will be made during the use of CPAP, at various pressures. The investigators also intend to determine if pressure determined by Polysomnography in OSAS patients cause some type of different change in AP graphic.

Clinical Trial Description

The investigators are performing AP exams in severe apneics (cases) and primary snorers (control group),first basal, and then at the same time of using CPAP with a nasal mask, at progressive pressures (from 4 to 10 cmH20 in snorers, and until 2 pressures above the polysomnography determined pressure in apneics). The wave tube of pharyngometer is connected to the patient´s mouth by a mouthpiece, and to the computer. It makes a graphic of area x distance for each measurement. Then the investigators compare the changes in area, distance and volume of oral cavity and pharynx, determined by CPAP pressures, in both groups, and compare the measurements inside each group and between the two groups. Finally, the investigators analyse the CPAP pressure that most modifies the AP graphic, observing if it has some relationship with the polysomnography determined CPAP pressure.

The investigators intend this way to show the kind of modifies determined by CPAP in oral cavity and oropharynx and, secondarily, observe some relationship of AP and polysomnography in determine the CPAP ideal pressure for severe apneic patients. ;

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01210703
Study type Observational
Source University of Sao Paulo General Hospital
Contact
Status Active, not recruiting
Phase N/A
Start date May 2009
Completion date December 2010
View Details
See also
  Status Clinical Trial Phase
Withdrawn NCT05164211 - Didgeridoo Treatment to Improve Pharyngeal Compliance in Obstructive Sleep Apnea-hypopnea Syndrome in Children N/A
Active, not recruiting NCT05049928 - m-Rehab OSA : Impact of a Telerehabilitation Program Associated With CPAP on Severity Markers of Obstructive Sleep Apnea Syndrome N/A
Not yet recruiting NCT04538274 - Trained Patient Involvement to Promote the Resumption of CPAP in Patients Who Have Discontinued Its Use N/A
Completed NCT02995837 - CBF and Childhood OSAS
Completed NCT02967367 - Reliability of Consumer Sleep Trackers in Patients Suffering From Obstructive Sleep Apnea Syndrome N/A
Completed NCT02180672 - Steroids for Pediatric Apnea Research in Kids Phase 3
Recruiting NCT01561677 - Consequences of Obstructive Sleep Apnea Syndrome (OSAS) After Ischemic Subtentorial Stroke. N/A
Completed NCT01193738 - Osteopathy and Obstructive Sleep Apnea Syndrome N/A
Completed NCT01808508 - Obstructive Sleep Apnea and Neurocognitive and Cardiovascular Function in Children With Down Syndrome N/A
Completed NCT01090297 - Continuous Positive Airway Pressure (CPAP) Mode Impact on Clinical Blood Arterial Pressure N/A
Completed NCT00801671 - Russian Study of the Effect of Continuous Positive Airway Pressure (CPAP) in Hypertension Phase 3
Completed NCT00850876 - Heated Humidified Continuous Positive Airway Pressure and Nasal Physiology N/A
Completed NCT02085720 - Prevalence of OSAS in Chinese Elderly and Its CPAP Compliance N/A
Recruiting NCT00874913 - Study of Ocular Blood Flow in Patients With Glaucoma and/or Obstructive Sleep Apnea Syndrome (OSAS) N/A
Completed NCT00156442 - A Study to Examine the Relationship Between Sleep Apnea and Cleft Lip/Palate N/A
Completed NCT00222963 - Pilot Study to Assess the Effectiveness of Tonsil and Adenoidectomy (T+A) in Overweight Children and Adolescents N/A
Withdrawn NCT00156455 - Sleep Disordered Breathing in Children With Single Ventricle Physiology N/A
Completed NCT01045499 - LAGB as a Treatment for Morbid Obesity in Adolescents N/A
Withdrawn NCT02559427 - SPA Therapy in the Treatment of Sleep Apnea Syndrome N/A
Completed NCT02522819 - Feasibility Evaluation of CPAP in the Treatment of Obstructive Sleep Apnea Synchrone in the Acute Phase of Stroke N/A