Featured Research

from universities, journals, and other organizations

Brain bypass surgery sparks restoration of lost brain tissue

Date:
April 24, 2011
Source:
University Health Network
Summary:
Neurosurgeons have for the first time initiated the restoration of lost brain tissue through brain bypass surgery in patients where blood flow to the brain is impaired by cerebrovascular disease.

Neurosurgeons at the Krembil Neuroscience Centre, Toronto Western Hospital, have for the first time initiated the restoration of lost brain tissue through brain bypass surgery in patients where blood flow to the brain is impaired by cerebrovascular disease. The study, which involved 29 patients, was published online in the journal Stroke.

In cases where blood flow is reduced to the brain as a result of diseased blood vessels, patients experience a progressive loss of brain tissue. This loss of tissue, which comprises the grey matter of the brain, is believed to lead to decreased neurocognitive function (i.e. types of thinking, such as perception, memory, awareness, capacity for judgement) and may hasten the onset of dementia.

At approximately 11 months after patients in the study underwent brain bypass surgery, aimed at restoring blood flow to the brain, researchers observed a 5.1percent increase in the thickness of the brain tissue on MRI scans.

"We were pretty astounded when we saw the results because they were quite unexpected," said Dr. Tymianski. "Our goal with the surgery was to halt further loss of brain tissue due to strokes, so it was remarkable to see the loss was actually reversed."

This is the first surgical treatment which has been shown to restore lost brain tissue. The average age of the patients in the study was 41 years old.

"The re-growth of brain tissue has only been observed in an extremely limited number of circumstances," said Dr. Tymianski. "We consider this so important because one of the most important health issues facing our population is chronic cerebrovascular disease, which leads to neurocognitive impairment and reduces quality of life."

Dr. Michael Tymianski is a neurosurgeon at the Krembil Neuroscience Centre specializing in neurovascular diseases, Director of the Neurovascular Therapeutics Program at the University Health Network and is a senior scientist at the Toronto Western Research Institute.

The full study is published online in the journal Stroke.


Story Source:

The above story is based on materials provided by University Health Network. Note: Materials may be edited for content and length.


Journal Reference:

  1. J. Fierstra, D. B. MacLean, J. A. Fisher, J. S. Han, D. M. Mandell, J. Conklin, J. Poublanc, A. P. Crawley, L. Regli, D. J. Mikulis, M. Tymianski. Surgical Revascularization Reverses Cerebral Cortical Thinning in Patients With Severe Cerebrovascular Steno-Occlusive Disease. Stroke, 2011; DOI: 10.1161/STROKEAHA.110.608521

Cite This Page:

University Health Network. "Brain bypass surgery sparks restoration of lost brain tissue." ScienceDaily. ScienceDaily, 24 April 2011. <www.sciencedaily.com/releases/2011/04/110418093854.htm>.
University Health Network. (2011, April 24). Brain bypass surgery sparks restoration of lost brain tissue. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2011/04/110418093854.htm
University Health Network. "Brain bypass surgery sparks restoration of lost brain tissue." ScienceDaily. www.sciencedaily.com/releases/2011/04/110418093854.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Generics Eat Into Pfizer's Sales

Generics Eat Into Pfizer's Sales

Reuters - Business Video Online (July 29, 2014) Pfizer, the world's largest drug maker, cut full-year revenue forecasts because generics could cut into sales of its anti-arthritis drug, Celebrex. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Nigeria Ups Ebola Stakes on 1st Death

Nigeria Ups Ebola Stakes on 1st Death

Reuters - Business Video Online (July 29, 2014) Nigerian authorities have shut and quarantined a Lagos hospital where a Liberian man died of the Ebola virus, the first recorded case of the highly-infectious disease in Africa's most populous economy. David Pollard reports Video provided by Reuters
Powered by NewsLook.com
Running 5 Minutes A Day Might Add Years To Your Life

Running 5 Minutes A Day Might Add Years To Your Life

Newsy (July 29, 2014) According to a new study, just five minutes of running or jogging a day could add years to your life. Video provided by Newsy
Powered by NewsLook.com
Ebola Outbreak Poses Little Threat To U.S.: CDC

Ebola Outbreak Poses Little Threat To U.S.: CDC

Newsy (July 29, 2014) The Ebola outbreak in West Africa poses little threat to Americans, according to officials with the Centers for Disease Control and Prevention. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins