Prospective Study of the Impact of Systemic Corticosteroid Use on Measures of Sleep Disordered Breathing
Weight gain is both a significant risk factor for obstructive sleep apnea and a side-effect of long-term systemic steroids therapy.
This study aimed to investigate the impact of long-term systemic steroid treatment on sleep apnea.
|Study Design:||Observational Model: Case-Only
Time Perspective: Prospective
- apnea-hypopnea index [ Time Frame: 3 months ] [ Designated as safety issue: No ]
- sleep study variables [ Time Frame: 3 months ] [ Designated as safety issue: No ]apnea-hypopnea interval desaturation at the end of apnea interval snoring intensity
|Study Start Date:||January 2007|
|Study Completion Date:||January 2010|
|Primary Completion Date:||January 2010 (Final data collection date for primary outcome measure)|
Other: sleep study
The polysomnography (PSG) (Alice 3 System; Healthdyne, Atlanta, GA) consisted of continuous polygraphic recording from surface leads for electroencephalography, electrooculography, electromyography, electrocardiography, thermistors for nasal and oral airflow, thoracic and abdominal impedance belts for respiratory effort, pulse oximeter for oxyhemoglobin level, tracheal microphone for snoring, and sensors for leg and sleep position
Other Name: no other names