Effects of Repetitive Transcranial Magnetic Stimulation on Patients With Dysphagia in Stroke Observed Based on Functional Near-infrared Spectroscopic

Routine swallowing rehabilitation training mainly included oral and facial muscle training, ice stimulation therapy, Mendelssohn maneuver training, and tongue root resistance training. The subjects were treated twice a day, Monday through Saturday, for 20 min each time for 2 weeks. All operations were performed by the same trained and qualified professional rehabilitation therapist.

In the rTMS group, 5 Hz rTMS was applied to the hot spot of the supraglottic motor cortex of the affected hemisphere at a treatment intensity of 80% resting motor threshold for 10 min, with a total of 250 pulses (with an interval of 11 s for every 1 s of continuous stimulation), and the treatment was performed once a day for 6 d per week for 2 weeks.

The sham rTMS group supplemented pseudomagnetic stimulation at the hotspot of the representative area, tilted the magnetic stimulation coil at 90°, and the same noise was emitted by the instrument during the treatment, but no stimulation was performed, and the group was treated once a day, 6d per week, for 2 weeks.