Transcranial Direct Current Stimulation Combined With Oral Feeding on Dysphagia

Summary

The study is a double-blind randomized controlled trial, lasting for 15 days for each participant. Patients with post-stroke dysphagia who receive treatment at the Rehabilitation Department are selected as the study subjects. The patients are randomly assigned to either the experimental group or the placebo group. All patients receive routine rehabilitation therapy and swallowing rehabilitation training, along with enteral nutrition support using Intermittent Oro-esophageal Tube. In addition to these interventions, patients in the experimental group receive transcranial direct current stimulation, while the instruments used for patients in the placebo group only illuminate an indicator light without any actual effect.

Conditions

• Stroke

Interventions

BEHAVIORAL

Comprehensive rehabilitation therapy

Including： Basic treatment, including corresponding control of risk factors and education on healthy lifestyles. Swallowing training, including lemon ice stimulation, empty swallowing training, and pronunciation training. Pulmonary function training, including standing training, cough training, and diaphragm muscle training.

DEVICE

Intermittent Oro-esophageal Tube Feeding

All patients are given enteral nutritional support with Intermittent Oro-esophageal Tube according to the following procedure: Before each feeding, inside and outside of the tube was cleaned with water. During feeding, the patient should maintain a semi-reclining or sitting position with mouth opened, and the tube was inserted slowly and smoothly into the upper part of the esophagus by medical staffs while the appropriate depth of intubation was checked with the calibration markings on the tube wall. The distance from the incisors to the head part of the tube should be between 22-25 cm. However, the specific depth should be evaluated based on patients' feedback and adjusted accordingly. After insertion, the tail part of the tube should be put into a container full of water and the absence of continuous bubbles indicated a successful intubation. Then, the feeding was to be conducted three times per day with 50 ml per minute and 400-600ml for each feeding.

DEVICE

Transcranial direct current stimulation

In this study, transcranial direct current stimulation is performed using a battery-powered constant current stimulator. This device delivers the current through two electrodes immersed in saline solution. Specifically, a 50mm\*50mm anodal electrode pad is placed at the center of the healthy side swallowing sensory-motor cortex of the patient. According to the positioning method of the international 10-20 electrode system, the swallowing sensory-motor cortex of the left brain is located at the midpoint between C3 and T3, while that of the right brain is located at the midpoint between C4 and T4. The cathode is placed on the opposite shoulder, using a current of 1mA, once a day, for 20 minutes each time, and 5 days a week. The instruments used for placebo patients will not have any actual effect.

Sponsors & Collaborators

• Zeng Changhao

  lead OTHER

Principal Investigators

• Nieto Luis, Master · Site Coordinator of United Medical Group located in Miami

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-02-28

Primary Completion

2024-05-31

Completion

2024-05-31

Countries

• Taiwan

Study Locations