Ischemic stroke is a kind of common disease with great harm. In acute stage of stroke there is sharply increasing morbidity of sleep apnea hypopnea syndrome. Our suppose that treatment with noninvasive ventilation for patients with acute ischemic stroke should improve the functional prognosis（measuring with 90d modified Rankin score）.
In acute state of ischemic stroke，if patients with sleep apnea hypopnea syndrome may need additional respiratory management such bi-level positive airway pressure.We supposed the patients with stroke can take benefit of functional recovery form bi-level positive airway pressure. We choose the patients who suffered ischemic stroke in 48 hours ，then evaluate the respiratory status. Stroke patients who were diagnosed as sleep apnea hypopnea syndrome will accept additional treatment with bi-level positive airway pressure for 7 night（per night 6 hours）.Then the modified Rankin scale score and NIHSS will be recorded at 30 days and 90 days after stroke.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
120
Bi level positive pressure ventilation should be given for subject for 6 hours per night ，total 7 times.
Peking university third hospital
Beijing, Beijing Municipality, China
RECRUITINGModified Rankin Scale score
0-2 Modified Rankin Scale score should be recognized good functional prognosis
Time frame: 90 days after symptoms
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