Effect of Modified Air-pulse Stimulation on Tracheotomised Patients With Dysphagia After Stroke

Inclusion Criteria: * patients who met the diagnostic criteria for stroke formulated in the 4th National Academic Conference on Cerebrovascular disease; * patients with relatively stable vital signs, with a NIHSS score of 21 points; * patients with tracheotomy accompanied by dysphagia; * no previous history of dysphagia; * age ≥ 30 years and ≤80 years; * informed consent signed by the patient and his family. Exclusion Criteria: * patients with medullary haemorrhage/infarction; * patients that experienced cerebral hernia and recurrent stroke; * patients with unstable arrhythmia, fever, infection, severe restlessness and inability to cooperate with treatment; * patients with gastro-oesophageal reflux, bilateral paralysis of the vocal cord, laryngopharyngeal stenosis/haemorrhage/tumour; * patients in which there was an inability to accurately locate epiglottis and arytenoid cartilage due to throat disease; * patients with a history of epilepsy or risk of seizures.