Inclusion Criteria:  All patients between 50 and 90 years of age who are admitted to the stroke unit of the neurology department at the University Hospital of Tulln with an acute first stroke, who have a Gugging Swallowing Screen (GUSS) result of less than 20 points, and who give written consent to participate in the study, are consecutively included. In addition, there must be a need for endoscopy (FEES), based on the screening result and the clinical swallowing examination.  Exclusion Criteria:  All patients with additional neurodegenerative diseases, with re-stroke, all patients in the time window of 2 hours after extubation, tracheostomy, chronic obstructive pulmonary disease (COPD), patients with pre-existing dysphagia and with pre-existing tablet swallowing problems are excluded. All patients who are not eligible for FEES (Fiberoptic Endoscopic Evaluation of Swallowing) are also excluded. This includes the following diagnoses: Skull base fractures / facial fractures, severe, life-threatening epistaxis in the last 6 weeks, nasal cavity trauma, nasal and paranasal surgery, nasal and paranasal injury in the last 6 weeks, sinus nasal tumours, skull base tumours / surgery, nasopharyngeal stenoses, craniofacial anomalies, Osler's disease (hereditary haemorrhagic telangiectasia), known vasovagal episodes.