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Nothing is more frightening than to learn that your child has a brain tumor. These serious tumors are unfortunately all too common; in fact, malignant brain tumors are the most frequent type of solid cancer seen in childhood. To make matters more difficult, conventional radiation therapy - a mainstay of treatment for adults - cannot be used freely in young children because of the risk of cognitive problems in later life. However, the relatively new technique of radiosurgery allows many children with brain tumors to be treated with radiation in a safe and effective manner. Here we discuss the role of this new technology in the treatment of childhood brain tumors.

The Problem of Radiation for Children

The three mainstays of treatment for adult tumors - surgery, chemotherapy and radiation therapy - are also used to fight tumors in children. Complex combinations of these options are often chosen, with success depending on the type of tumor and the individual details. These regimens require the guidance of pediatric experts - pediatric oncologists, surgeons and radiation oncologists - because childhood tumors behave differently than adult tumors.

Because radiation controls many tumors in adults, physicians were once hopeful that children could also benefit from this treatment. However, children respond differently to radiation than adults. For children under the age of three years, their brains are in critical stages of development and are simply too fragile to withstand radiation without harm. Within several years, the radiation can lead to severe developmental delay, memory and cognition deficits, and structural changes in brain tissue. By later life, many are devastated.

Older children, those greater than five years of age, are less prone to these complications, and radiation therapy remains an important part of their treatment. Pediatric oncologists, nevertheless, carefully consider the potential for harmful effects of radiation in all children. And most oncologists usually withhold radiation from younger children, relying instead on surgery and chemotherapy to control the tumor until the child is old enough to withstand radiation therapy. Many feel that therapy is compromised by the omission of radiation, but they are still reluctant to add this treatment until the child is older. Unfortunately, the cost of sparing these children the later ravages of radiation is the denial of a potentially life-saving treatment.

A Partial Solution: Radiosurgery and the Gamma Knife

In the 1950's, the Swedish neurosurgeon Lars Leksell had a groundbreaking idea. Why not devise a machine that could focus the radiation onto the tumor alone, sparing the surrounding brain from the offending radiation? Such a device might hold immense benefits for children, since the minimal exposure to the surrounding brain meant that the risk of devastating side effects would be small.

Leksell's idea brought about the Gamma Knife®, which is actually not a knife at all. Instead, it is a large spherical metal helmet containing 201 holes, which guide the radiation to a single spot at the helmet's center. Since that one spot receives more than 200 times than the dose to the surrounding brain, the result is the desired effect of focusing.

The Gamma Knife® is used differently than standard machines for radiotherapy. Instead of a fractionated plan consisting of small doses given daily for many weeks to kill tumor cells without harming normal tissue, Gamma Knife® treatments consist of a single, powerful dose given in one sitting designed to annihilate any tumor within the targeted area. Since the Gamma Knife® is so precisely focused, this strategy of radiosurgery has been spectacularly successful in treating a variety of adult brain tumors. However, the Gamma Knife® cannot be used for young children because its use requires attachment of a metal frame to the head, a frame too heavy and too tight for the fragile infant skull. For older children with thicker skulls, Gamma Knife® radiosurgery remains a good option with success rates similar to those seen for adults.

A New Approach: the CyberKnife®

The CyberKnife® offers the precision of radiosurgery without the requirement of a head frame. Consisting of a robotically guided source of radiation, the CyberKnife® maintains the required precision by taking x-ray images of the patient throughout treatment to update its position: the robot senses any movement of the patient's head and automatically compensates. In fact, extensive testing has shown that the precision of the CyberKnife® approaches that of the Gamma Knife®. This means that radiosurgery can be delivered with the CyberKnife® without a head frame, so that radiosurgery can be offered to the infants and young children that have been denied this option in the past.

Limitations of Radiosurgery and Advantages
of the CyberKnife®

Although the Gamma Knife is a powerful tool for the treatment of many brain tumors in children, not all brain tumors are suitable for Gamma Knife radiosurgery. For reasons that are unclear, the risk of complications increase if the tumor is greater than an inch in diameter or if the tumor is located in fragile locations of the brain such as the brainstem or thalamus. In such cases, a single, large radiosurgical dose may be too dangerous even if the repeated, small doses of a fractionated plan may be ineffective. In an effort to achieve the best of each, many centers offer hypofractionated plans in which a large dose of radiation is given in 3 to 7 smaller daily doses. These new plans have not been fully studied but have theoretical appeal and preliminary reports have been encouraging. They are not easily accomplished with the Gamma Knife® since the patients are rarely able to wear the head frame for 3 to 7 days. Hypofractionation can easily be obtained with the CyberKnife® since no frame is required to maintain the needed precision. For children with larger tumors or tumors located in sensitive areas, hypofractionation with the CyberKnife® is an option and extends beyond what was previously available.

When to Use What: Gamma Knife®, CyberKnife® or Other?

Deciding between these many options is not easy. The experts do not always agree, so you will need the advice of your doctors. Here is one approach.

Children less than three years of age. Because of the risk of serious cognitive problems in later life, the use of conventional fractionated radiation therapy to treat young children is uncommon.

Radiosurgery with the CyberKnife®, however, remains an option for these fragile patients because the focused fields of the CyberKnife® minimize radiation exposure to normal brain tissue. Furthermore, a rigid headframe is not required. Young children and even babies with delicate skulls can therefore be offered CyberKnife® radiosurgery.

Older Children. The options for older children include conventional radiotherapy, Gamma Knife® radiosurgery, and CyberKnife®. Radiotherapy may be given if the tumor is too large for radiosurgery or if the tumor infiltrates into a large volume of brain. Single dose radiosurgery can be given with either the Gamma Knife® or the CyberKnife®, although the CyberKnife® may be chosen for some children to avoid the discomfort of the head frame or the use of general anesthesia. Hypofractionation with the CyberKnife® may be chosen if the tumor is large or has been treated in the past with radiation.

What About Tumors of the Spine?

Since the CyberKnife® does not require a headframe, it can deliver radiation to any structure in the body, including the spine. Experience has been promising but early, and most of the patients receiving radiosurgery for tumors of the spine have been adults. However, the technique is possible in infants and children; consult with your doctors and your CyberKnife® center.













The Baylor Radiosurgery Center

The Baylor Radiosurgery Center is a facility on the campus of Baylor University Medical Center in Dallas that is dedicated to radiosurgery and houses both a Gamma Knife® and a CyberKnife®. The physicians on the medical staff at the Baylor Radiosurgery Center pioneered the use of CyberKnife® radiosurgery in infants, and work closely with the pediatric oncology community in Dallas. If you wish to obtain more information about the services offered at the Baylor Radiosurgery Center, please call us at 214-820-HOPE.

Physicians are employees of HealthTexas Provider Network and are neither employees nor agents of Baylor Health Care System, Baylor University Medical Center at Dallas or Baylor Health Care System's subsidiary, community or
affiliated medical centers.

This article was written for the Childhood Brain Tumor Foundation, Germantown, Maryland, www.childhoodbraintumor.org.

14th ispno 114th ispno 2The Childhood Brain Tumor Foundation was delighted to be a silver sponsor of the International Symposium on Pediatric Neuro-Oncology (ISPNO), held from June 20 through June 23, 2010, in Vienna, Austria. The ISPNO is held every two years alternating in and out of the United States. This important meeting brings together basic scientists, translational researcher, clinicians, and other medical professionals to share new developments, research initiatives, outcomes from clinical trials, progress in research initiatives, and late effects. The Co-chairs for the 14th International Symposium on Pediatric Neuro-Oncology were Irene Slavc, M.D. and Thomas Czech, M.D. They warmly welcomed the attendees and opened the conference during a special session on Functional Systems of the Brain. This article includes selective topics from the conference.

The 6th annual Tennis For Tumors event had a successful tournament. The event was held on May 5th, 2012 at the Beerman Family Tennis Center located in Lakeland Florida. The tennis tournament raised $44,000 dollars in support of research grants for childhood brain tumors to help find a cure.

Brittany Truitt initiated Tennis For Tumors after she had a brain tumor removed in August 2007. The purpose of the tournament is to fund research and find new treatment options for children with brain tumors. The tournament also strives to raise public awareness of brain tumors. 

Jeff McCardle and Paul Walker organized the teams and directed the tournament. The tournament included junior, young adult, and adult divisions. The participants were divided into girls, boys, mixed junior, women, and men, mixed adult, and mixed young adult teams. Paula McCardle coordinated the kids’ camp with drills and games. The directors of both the tournament and kids camp did an amazing job running the event. 

Tennis For Tumors is thankful for the sponsors of the event. The success of the event would not be possible without their donations and participation. 

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Corporate Sponsor

  • Lab Corp 

Court Sponsors

  • Dr. Larry and Tina Thomas
  • Raymond and Barbara Sheldon
  • C.C. Calhoun, Inc.
  • S.R. Wright & Co. CPA’s
  • Pain Management Associates
  • Dr. Michael Simon and Dr. Jorge Villarreal
  • Yates and Hagan
  • W&M Environmental
  • All Saints’ Academy
  • Lakeland Christian School
  • ATR Radiology
  • D-N-R Entertainment

We would also like to thank the participants, local businesses, and families for their involve-ment. The response is truly amazing and Tennis For Tumors thanks everyone who donates and volunteers. 

Brett Truitt was the chairman and Shannon Griffin was the co-chair of the event. The board members consisted of a group of high school students re-sponsible for planning, organizing, and carrying out the details of fundraising and the tournament. The other board members dedicated to this cause is as follows: Mason Bellar, Isabella Bogdahn, Madison Campbell, Blake Dantzler, Erika Fox, Savannah Griffin, Alex Hall, Anna Holt, Holleman Hughes, Nelson Hughes, Huan Huyah, Hayley Lockwood, Meredith Mancini, Mere-dith Marshall, Dylan Nguyen, Tyler Pate, Ann Portlock, Taylor Oliver, Devin Patel, John Portlock, and Brigetta Truitt. The students were comprised from Polk County and included public and private schools as listed: All Saints’ Academy, Lakeland Christian, Winter Haven High School, Lake Region High School, Santa Fe Catholic, Lakeland High School, and Grace Lutheran. The board members did an amazing job taking action against brain tumors. 

 

Over 800 people registered for the Childhood Brain Tumor Foundation's (CBTF) Superheroes 5K and Kids' Fun Run.  Team Jaimin brought the largest team and supporters, raising over $15,000 in honor of Jaimin; Team Awesome Alicia 2012 raised over $11,000, also bringing their awesome supporters, and Team Yehudis was the third highest fundraising team and also brought a large group of friends and families again this year. Tay's Team and Team Alexandra, nearly tied on the Thursday before race day were in the top five for raising funds. Each of the top five team captains were presented award medals in appreciation for their extraordinary efforts.

All of the teams did an outstanding job rallying friends and family.  It was a gloriously beautiful fall day, all of the children that participated in the Kids' Fun Run proudly received their medals, plenty of food to nosh on, and awards were presented to the top three overall and the top three finishers in each age category.

Words cannot begin to express our sincere and deep appreciation to all of the fantastic volunteers, teams, individuals, and supporters.  Sam's Army set up a table at the event.  Team Yehudis provided an opportunity for supporters to purchase her beautiful hand-made crocheted items to add to her team's contribution toward research.

We also had sponsorship support, donated toward CBTF's primary initiative to fund pediatric brain tumor research to find cures and improve quality of life for the children.  Team Jaimin obtained support from DIOA/GOCA; TREVORstrong obtained sponsorship from Whittle's Physical Therapy, Iron Man ReShon from Promised Land Baptist Church and Radio-One, and Team Jordan from the Second Chance Band, JKS Spirit Fund, Wesley Chapel, and the Urbana VFD.

CBTF felt truly blessed to have the dedicated support of every single participant, supporter, volunteer, vendor, individual, and community.  We could not achieve our mission goals without all of our supporters.  Thank you.  Join us again next year for the next Superheroes event!

CBTF SUPERHEROES 5K WALK/RUN AND KID'S FUN RUN
Chevy Chase, Md October 14, 2012

CBTF SUPERHEROES 5K WALK/RUN AND KID'S FUN RUN

Chevy Chase, Md October 14, 2012

The Reston Youth Triathlon, Be AMYazing! inaugural event was held in May 2011 and sold out in under 18 hours. While this year's event also sold out quickly, you can still support Be AMYazing and the Childhood Brain Tumor Foundation through donations to Amy's Amigos.

The triathlon is sponsored by Amy’s Amigos in conjunction with The Core Foundation. Amy's Amigos is a South Lakes High School club, who focuses on raising money for brain cancer research and empowering young adults to live fit and have fun. Amy’s Amigos formed in 2008 in memory of Amy Boyle, a sixth grader who lost her battle with brain cancer. Inspired by Amy’s spirit, athleticism and love of life, Amy’s Amigos has participated in the American Cancer Society Relay For Life for the past three years and held numerous fund raising activities to raise more than $30,000 since its inception. The proceeds from Reston Youth Triathlon, Be AMYazing! will go to the Childhood Brain Tumor Foundation.

Sponsored by henrys wrecker service logo

On Thursday, May 19, 2011, Cook and Zook of Long & Foster Realtors hosted their 2nd annual golf tournament at the Pleasant Valley Golf Course in Chantilly, Virginia.  Ryan Zook and Brian Cook welcomed the participants and emphasized the importance of charitable giving.  Parent, Kristin Dundon; survivor, Nick Keene; and parent/CBTF president, Jeanne Young each thanked “Cook and Zook,” the participants, and the sponsors, and they shared a personal story to underscore the importance of the day.

CBTF is deeply grateful to Ryan, Brian, and Kristin for choosing us as the charity to benefit from the proceeds.

 

 

An exciting event, Amyazing Reston Youth Triathlon, was held on Sunday, May 22, 2011, in South Reston and started at the Ridge Heights Pool and ended at South Lake High School.  The event was held in memory of Amy Boyle, a very courageous and fun-loving young lady, who lost her battle to a pediatric brain tumor in 2008.  The “Amy” inspired event attracted over 200 enthusiastic participants, ages six to 15 and included a run, biking and swimming.
The Childhood Brain Tumor Foundation is very grateful to Jodie, Amy’s Amigos, and the Boyle family for organizing a fantastic event; and to the supporters who really got into the spirit of the day!

 

 

Thanks to Our Sponsors