Thursday, December 14, 2017
News

Brain changes detected in kid with double hand transplant

   SocialTwist Tell-a-Friend    Print this Page   COMMENT

New York | Thursday, 2017 9:45:04 PM IST
 
Doctors have detected changes in the brain of 10-year-old Zion Harvey from the US who was the first child in the world to undergo a double hand transplant.

In July 2015, surgeons at The Children's Hospital of Philadelphia (CHOP) successfully transplanted donor hands and forearms on eight-year-old Harvey who, several years earlier had undergone amputation of his hands and feet, and a kidney transplant, following a serious infection.

He is now also the first child in the world in whom massive changes of how sensations from the hands are represented in the brain have been detected.

Post the transplantation, Harvey's brain reverted toward a more typical pattern, the researchers said.

The brain area representing sensations from the lips shifted as much as 2 cm to the area formerly representing the hands.

This brain remapping that occurs after upper limb amputation is called massive cortical reorganization (MCR).

"With the changes observed in his brain, Harvey is now the first child to exhibit brain mapping reorientation. This is a tremendous milestone and it is yet another marker of his amazing progress, and continued advancement with his new limbs," said L. Scott Levin, director of the Hand Transplantation Program at the CHOP.

He led the 40-member team that performed the milestone surgery in July 2015.

The researchers, reporting in the journal Annals of Clinical and Translational Neurology, noted that they used magnetoencephalography (MEG), which measures magnetic activity in the brain, to detect the location, signal strength and timing of the patient's responses to sensory stimuli applied lightly to his lips and fingers.

They found that each area of the body that receives nerve sensations sends signals to a corresponding site in the brain.

The spatial pattern in which those signals activate the brain's neurons is called somatosensory representation -- particular parts of the brain reflect specific parts of the body.

"These observations are consistent with the idea that -- at least for our pediatric patients -- large-scale changes in the brain following injury or amputation act to preserve established functional brain areas, which are reactivated with recovery of the hands," noted William Gaetz, a radiology researcher at CHOP.

--IANS rt/him/vm

( 367 Words)

2017-12-07-21:28:08 (IANS)

Watch News Videos

 
  LATEST COMMENTS (0)
POST YOUR COMMENT
Comments Not Available
 
POST YOUR COMMENT
 
TRENDING TOPICS
 
 
 
CITY NEWS
MORE CITIES
 
MORE HEALTH NEWS
IGNOU to offer courses in food safety...
Human 'common cold' virus killed chimps ...
It's poop heat in Kenyan slums -- and bu...
You need to cut this one food from your ...
Here're three nutrients that can help pr...
UN warns of severe health risks from ele...
More...
 
INDIA WORLD ASIA
PM commissions INS Kalvari to boost Indi...
Pradhan pitches for education, skill dev...
Hyderabad man appeals Sushma to help arr...
Hyderabad student shot in Chicago: Victi...
Telangana govt announces salary hike for...
PM commissions India's 1st indigenously-...
More...    
 
 Top Stories
Telangana seeks Israel's help in cy... 
SC nod to 12 fast-track courts to t... 
Two Parsi women married outside rel... 
IndiGo to operate Colombo flights f... 
Missing accounts officer found dead... 
Syria, Lebanon reopen border crossi... 
Police in tourism areas should be a... 
Chinese man jailed for desecrating ...