Navigation Links
Electrical brain stimulation can alleviate swallowing disorders after stroke
Date:7/2/2012

Amsterdam, NL, July 2, 2012 After stroke, patients often suffer from dysphagia, a swallowing disorder that results in greater healthcare costs and higher rates of complications such as dehydration, malnutrition, and pneumonia. In a new study published in the July issue of Restorative Neurology and Neuroscience, researchers have found that transcranial direct current stimulation (tDCS), which applies weak electrical currents to the affected area of the brain, can enhance the outcome of swallowing therapy for post-stroke dysphagia.

"Our pilot study demonstrated that ten daily sessions of tDCS over the affected esophageal motor cortex of the brain hemisphere affected by the stroke, combined with swallowing training, improved post-stroke dysphagia. We observed long-lasting effects of anodal tDCS over three months," reports lead investigator Nam-Jong Paik, MD, PhD, of the Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, South Korea.

Sixteen patients with acute post-stroke dysphagia were enrolled in the trial. They showed signs of swallowing difficulties such as reduced tongue movements, coughing and choking during eating, and vocal cord palsy. Patients underwent ten 30-minute sessions of swallowing therapy and were randomly assigned to a treatment or control group. Both groups were fitted with an electrode on the scalp, on the side of the brain affected by the stroke, and in the region associated with swallowing. For the first 20 minutes of their sessions, tDCS was administered to the treatment group and then swallowing training alone continued for the remaining 10 minutes. In the control group, the direct current was tapered down and turned off after thirty seconds. Outcomes were measured before the experiment, just after the experiment, and again three months after the experiment. A patient from each group underwent a PET scan at before and just after the treatment to view the effect of the treatment on metabolism.

All patients underwent interventions without any discomfort or fatigue. There were no significant differences in age, sex, stroke lesion site, or extent of brain damage. Evaluation just after the conclusion of the sessions found that dysphagia improved for all patients, without much difference between the two groups. However, at the three month follow-up, the treatment group showed significantly greater improvement than the control group.

In the PET study, there were significant differences in cerebral metabolism between the first PET scan and the second PET scan in the patient who had received tDCS. Increased glucose metabolism was observed in the unaffected hemisphere, although tDCS was only applied to the affected hemisphere, indicating that tDCS might activate a large area of the cortical network engaged in swallowing recovery rather than just the areas stimulated under the electrode.

"The results indicate that tDCS can enhance the outcome of swallowing therapy in post-stroke dysphagia," notes Dr. Paik. "As is always the case in exploratory research, further investigation involving a greater number of patients is needed to confirm our results. It will be important to determine the optimal intensity and duration of the treatment to maximize the long-term benefits."


'/>"/>

Contact: Daphne Watrin
d.watrin@iospress.nl
31-206-883-355
IOS Press
Source:Eurekalert

Related medicine news :

1. Study of Retired NFL Players Finds Evidence of Brain Damage
2. Study finds new gene mutations that lead to enlarged brain size, cancer, autism, epilepsy
3. Kernicterus Brain Damage in Babies Linked to Medical Malpractice
4. Magnets in iPad2 May Alter Settings on Brain Shunt Devices: Study
5. Link between brain insulin resistance, neuronal stress in worsening Alzheimers disease
6. Brain EEG Test Might Help Spot Autism: Study
7. First-ever Allen Brain Atlas Hackathon unleashes big data API to push neuroscience forward
8. Brain structure helps guide behavior by anticipating changing demands
9. Tracking Love, Lust in the Brain
10. Aging Brain Care model receives $7.8 million in CMS innovation funding
11. Deep Brain Stimulation May Offer Longer-Term Relief for Parkinsons
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/19/2017)... (PRWEB) , ... January 19, 2017 , ... ... owned insurance agency which serves Lawrenceville, New Jersey and the surrounding area, ... , Amyotrophic lateral sclerosis (ALS), more commonly known as Lou Gehrig's disease or ...
(Date:1/19/2017)... , ... January 19, 2017 , ... ... the 2017 Spring Create Real Impact contest from Impact Teen Drivers and California ... http://www.createrealimpact.com . , Educational grants totaling $15,000 will be awarded for ...
(Date:1/19/2017)... ... January 19, 2017 , ... Bill Howe Plumbing, Heating & Air ... Heart Association; “Howe” Healthy is Your Heart Drawing Contest The drawing contest ... year, Bill Howe Plumbing, Heating & Air receives over 600 entries. The culmination of ...
(Date:1/19/2017)... ... January 19, 2017 , ... Sales Focus Inc. (SFI), a Maryland-based sales ... market. , Over the past 20 years SFI has been recognized as the world’s ... six new clients into the US market. The new clients include: Panacea Pro, ...
(Date:1/19/2017)... Atlanta, Georgia (PRWEB) , ... January 19, 2017 ... ... Reconstructive Surgeons hosts the Atlanta Breast Surgery Symposium, a conference where hundreds of ... latest advancements in breast surgery. Covering topics from cosmetic breast augmentation ...
Breaking Medicine News(10 mins):
(Date:1/19/2017)... , Jan. 19, 2017 Conference Call and Webcast to ... ) today announced it will release results for the fourth quarter ... ... host a conference call at 4:30 PM ET on Wednesday, February ... full year 2016 financial results and other corporate activities. To participate ...
(Date:1/19/2017)...  Stealth BioTherapeutics Inc. ( Stealth ), a clinical-stage ... announced new additions to its senior leadership team: ... and Daniel Geffken as interim Chief Financial ... , Pharm.D. has been promoted to Chief Clinical Development ... Doug and Daniel to our management team, as both ...
(Date:1/19/2017)... 19, 2017  Abaxis, Inc. (NasdaqGS: ABAX ... instruments and consumables for the medical and veterinary markets ... financial results for the third quarter fiscal year 2017, ... 4:15 p.m. ET on Thursday, January 26, 2017.  The ... fiscal year 2017 after the market closes on Thursday, ...
Breaking Medicine Technology: