Inclusion Criteria- We will select non-obese patients (body mass index [BMI] <30 kg/m2) with stroke diagnosed during the 3 previous months and obstructive sleep apnea on screening sleep study (apnea-hypopnea index [AHI] >15 events/hr of study time).
- Patients with stroke will be selected based on the following criteria: 85 years old or less with a history of ischemic stroke within 3 months resulting in mild to moderate neurological impairment (Rankin scale < 3)
Exclusion Criteria- Hemorrhagic stroke,
- A history of chronic obstructive lung disease,
- Left ventricular ejection fraction (LVEF) <55%
- Evidence of nasal or pharyngeal obstruction on physical examination.