Featured Research

from universities, journals, and other organizations

Mayo Clinic Study Finds Radiosurgery Is Effective Alternative To Surgery

Date:
April 25, 2002
Source:
Mayo Clinic
Summary:
A Mayo Clinic study has found that radiosurgery on a rare, typically benign intracranial tumor, is an effective alternative to surgery. The use of stereotactic radiosurgery has less risk of injuring the cranial nerves where these tumors, non-vestibular schwannomas, appear. Schwannomas are typically benign tumors arising from the covering of nerves.

A Mayo Clinic study has found that radiosurgery on a rare, typically benign intracranial tumor, is an effective alternative to surgery.

Related Articles


The use of stereotactic radiosurgery has less risk of injuring the cranial nerves where these tumors, non-vestibular schwannomas, appear. Schwannomas are typically benign tumors arising from the covering of nerves.

The study reviewing patient outcomes after radiosurgery appears in a recent issue of the International Journal of Radiation Oncology, Biology, Physics.

Stereotactic radiosurgery is a radiation therapy technique that uses a large number of narrow, precisely aimed, highly focused beams of ionizing radiation. The beams are aimed from many directions circling the head and meet at a specific point.

"Nonvestibular schwannomas are quite rare, representing less than one-half of one percent of intracranial tumors," said Bruce Pollock, M.D., a Mayo Clinic neurosurgeon and the lead author of the study. "Our study found that radiosurgery offers patients an alternative to surgical resection that has less risk of injuring the cranial nerves."

The study followed 23 patients who had radiosurgery for nonvestibular schwannomas at Mayo Clinc from April 1992 to February 2000. Nine of the study’s patients had undergone one or more prior tumor resections or surgeries. One patient had a malignant schwannoma.

After radiosurgery, 22 of 23 tumors (96 percent) were either smaller (12) or unchanged in size (10). In the study, one patient with a malignant schwannoma had tumor progression outside the irradiated volume despite having both radiosurgery and fractionated radiation therapy; he died four years later. No patient with a lower cranial nerve schwannoma developed any hearing loss, facial weakness, or swallowing difficulty after radiosurgery.

In the study, Dr. Pollock and his colleagues concluded that although the reported number of patients having radiosurgery for nonvestibular schwannomas is limited, the high tumor control rates demonstrated after vestibular schwannoma radiosurgery should apply to these rare tumors. Compared to historical controls treated with surgical resection, radiosurgery appears to have less treatment-associated death for nonvestibular schwannomas, especially for schwannomas involving the lower cranial nerves.


Story Source:

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


Cite This Page:

Mayo Clinic. "Mayo Clinic Study Finds Radiosurgery Is Effective Alternative To Surgery." ScienceDaily. ScienceDaily, 25 April 2002. <www.sciencedaily.com/releases/2002/04/020425072114.htm>.
Mayo Clinic. (2002, April 25). Mayo Clinic Study Finds Radiosurgery Is Effective Alternative To Surgery. ScienceDaily. Retrieved January 29, 2015 from www.sciencedaily.com/releases/2002/04/020425072114.htm
Mayo Clinic. "Mayo Clinic Study Finds Radiosurgery Is Effective Alternative To Surgery." ScienceDaily. www.sciencedaily.com/releases/2002/04/020425072114.htm (accessed January 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, January 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Malnutrition on the Rise as Violence Flares in C. Africa

Malnutrition on the Rise as Violence Flares in C. Africa

AFP (Jan. 28, 2015) Violence can flare up at any moment in Bambari with only a bridge separating Muslims and Christians. Malnutrition is on the rise and lack of water means simple cooking fires threaten to destroy makeshift camps where people are living. Duration: 00:40 Video provided by AFP
Powered by NewsLook.com
Poultry Culled in Taiwan to Thwart Bird Flu

Poultry Culled in Taiwan to Thwart Bird Flu

Reuters - News Video Online (Jan. 28, 2015) Taiwan culls over a million poultry in efforts to halt various strains of avian flu. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
Media Criticizing Parents For Not Vaccinating Children

Media Criticizing Parents For Not Vaccinating Children

Newsy (Jan. 28, 2015) As the Disneyland measles outbreak continues to spread, the media says parents who choose not to vaccinate their children are part of the cause. Video provided by Newsy
Powered by NewsLook.com
Shark Bite Victim Making Amazing Recovery

Shark Bite Victim Making Amazing Recovery

AP (Jan. 27, 2015) A Texas woman who lost more than five pounds of flesh to a shark in the Bahamas earlier this month could be released from a Florida hospital soon. Experts believe she was bitten by a bull shark while snorkeling. (Jan. 27) Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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