A single center, prospective study to assess the efficacy of high flow nasal cannula (HFNC) in improving obstructive sleep apnea (OSA) parameters in patients with reduced tolerance to continuous positive airway pressure (CPAP) treatment.
A single center, prospective study. The study would include 30 patients diagnosed within the past 2 years with moderate to severe OSA (AHI\>=15) at the Rabin Medical Center (RMC) sleep lab, and who are intolerant to CPAP treatment. Following signing an informed consent form, these patients would undergo polysomnography (PSG) while treated with HFNC. The HFNC PSG outcome measures will be compared to the baseline PSG done within the past 2 years and to an additional PSG while connected to a CPAP device.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
30
We shall use the Airvo 2 device to administer humidified and warmed air at high flow during sleep.
Apnea Hypopnea Index (AHI)
Comparison of HFNC AHI to baseline AHI and to CPAP AHI
Time frame: During at least 2 hours of sleep time
Percent of hypoxemia time
O2 saturation (SO2)\<90% as measured by pulse oximeter
Time frame: During at least 2 hours of sleep time
Minimal SO2%
Time frame: During at least 2 hours of sleep time
Adverse events reported while using HFNC
Time frame: During at least 2 hours of sleep time
Sleep efficiency
Time frame: During at least 2 hours of sleep time
Total sleep time
Time frame: During at least 2 hours of sleep time
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