Patients in this group will receive the standardized oral care protocol developed for post-intubation stroke patients. The intervention includes using [填入具体溶液，如 0.12% Chlorhexidine] solution, performed every 6 hours by trained nurses, following a specific assessment checklist to ensure thorough cleaning of the oral cavity and prevention of VAP.

Patients in this group will receive the routine oral care procedures currently used in the department. This typically involves basic oral hygiene maintenance according to standard nursing guidelines without the specific standardized protocol interventions applied in the experimental group.

Carry out oral care using the constructed standardized oral care plan

The incidence of VAP will be assessed and compared between the two groups. Diagnosis will be based on clinical criteria including new or progressive radiographic infiltrates, purulent secretions, fever, and leukocytosis.