Study on the Optimal Head Position for Patients With Severe Acute Ischemic Stroke

Exclusion Criteria

• •1. Known pregnancy or breastfeeding, or positive pregnancy test before randomization
• •2. Expected survival time less than 3 months (such as with malignant tumors, severe cardiopulmonary diseases, etc)
• •3. Already participating in other interventional clinical studies that may affect outcome assessment
• •4. Other situations deemed by the investigator as unsuitable for participation in this study or that may pose significant risks to the patient (such as inability to understand and/or comply with study procedures and/or follow-up due to mental illness, cognitive or emotional disorders)
• •5. Presence of brain midline shift or herniation, ventricular mass effect
• •6. Patients with limited head elevation (or patients unable to cooperate with postural intervention due to their condition/recovery needs, etc.)
• •7. Presence of respiratory infection symptoms such as fever, cough, or sputum production at the time of admission