Navigation Links
Highly targeted radiation technique minimizes side effects of prostate cancer treatment

Men with prostate cancer treated with a specialized type of radiation called intensity modulated radiation therapy (IMRT) have fewer gastrointestinal complications compared to patients treated with conventional three-dimensional conformal radiotherapy (3D-CRT), according to a study presented November 1, 2010, at the 52nd Annual Meeting of the American Society for Radiation Oncology (ASTRO).

"With survivors living many years after treatment, it is very important to minimize gastrointestinal and urinary side effects to allow patients to live a full life after treatment," Justin Bekelman, M.D., lead author of the study and a radiation oncologist at the University of Pennsylvania in Philadelphia, said. "We specifically looked at IMRT, given its potential to minimize radiation side effects and its higher cost compared to other treatments. Our study shows there is a benefit for men with prostate cancer to receive IMRT over conventional treatment in terms of gastrointestinal side effects. But there is no difference between the two treatments in terms of urinary side effects."

The prostate gland is near both the rectum and the bladder, so doctors must be very careful to spare these healthy tissues to avoid complications when attacking the cancer.

Prostate cancer is the most common cancer in American men, with more than 185,000 men diagnosed with the disease each year. Fortunately, the disease is very manageable and often curable, with 98 percent of patients living at least five years after their diagnosis.

IMRT and 3D-CRT are special types of external beam radiation therapy where radiation is directed through the skin to the cancer and the immediate surrounding area to destroy the tumor and any stray cancer cells. Treatments are painless, much like receiving an X-ray.

Policymakers and clinicians have highlighted the need for comparative studies of prostate cancer treatments. However, there is little evidence comparing IMRT to conventional radiation therapy. Three-dimensional conformal radiation therapy, or 3D-CRT, uses computers and special imaging techniques such as CT, MR or PET scans to show the size, shape and location of the tumor and surrounding organs. Because the radiation beams are very precisely directed, nearby normal tissue receives less radiation.

Intensity modulated radiation therapy, or IMRT, is a specialized form of 3D-CRT that better shapes the radiation to the tumor. Using IMRT, it may be possible to further limit the amount of radiation received by healthy tissue near the tumor.

This study used the Surveillance, Epidemiology and End Results (SEER)-Medicare database to compare the gastrointestinal and urinary complications of men 65 years or older with prostate cancer within two years of treatment with IMRT or 3D-CRT. The researchers specifically examined common gastrointestinal side effects like inflammation of the rectum lining (proctitis) and rectal bleeding, along with the urinary side effects like inflammation of the bladder tissue (cystitis) and blood in the urine (hematuria).

The study showed that IMRT was associated with a modest reduction in gastrointestinal complications associated with radiation, including proctitis and rectal bleeding. Urinary complications, such as cystitis and hematuria, did not significantly differ between the groups.


Contact: Beth Bukata
American Society for Radiation Oncology

Related medicine news :

1. Help wanted: Highly cited researchers needed for high-ranking positions at research institutions
2. Lead poisoning highly prevalent among school-aged children in Uganda
3. New weapon against highly resistant microbes within grasp
4. Whole body MRI is highly accurate in the early detection of breast cancer metastases
5. Swedes think highly of the government -- but not of the royal family
6. Life Coach and Author Thomas Finn's Highly Anticipated Book, 'A Better Tomorrow- Affirmations and Visualizations the Keys to Success,' Debuts June 15
7. 15 years after ACL knee reconstruction, 84 percent of male patients still highly active, study says
8. FDA Appoints Highly Qualified Scientific Experts to Tobacco Products Scientific Advisory Committee
9. Sexual issues a major concern for cancer patients taking new targeted drugs
10. Targeted therapy promising for HER2-positive metastatic breast cancer
11. Evaluation of targeted therapy in ovarian cancer
Post Your Comments:
(Date:10/13/2017)... ... ... The Visiting Nurse Association (VNA) of Somerset Hills is proud to host ... items from across the nation, this holiday-themed event will raise funds and awareness for ... The boutique will be open Saturday, November 4 (10:00 a.m. – 5:00 p.m.) ...
(Date:10/13/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has released a ... books in the Holy Scriptures, Revelation. The Book of Revelation paints a picture of ... have tossed it off as mere rubbish, but Yisrayl Hawkins says that is because ...
(Date:10/13/2017)... ... ... Journey: From the Mountains to the Mission Field”: the story of a missionary couple ... From the Mountains to the Mission Field” is the creation of published author, Carole ... and currently teaches a class of ladies at her church, which she has taught ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent and San Francisco dentists, ... cutting-edge Oventus O2Vent technology. As many as 18 million Americans are estimated to ... breathing. Oral appliances can offer significant relief to about 75 percent of people ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... the introduction of an innovative new design of the shoulder pad. The shoulder ... maximum comfort while controlling your pain while using cold therapy. By utilizing ice and ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)...  NDS received FDA 510(k) clearance in May 2017 for its ... specifically designed for endoscopy environments. An innovative secondary monitor solution, ZeroWire ... to support the improvement of patient outcomes, procedural efficiency, and the ... ... ...
(Date:10/5/2017)... 5, 2017  In response to the nationwide ... Maxillofacial Surgeons (AAOMS) released prescribing recommendations that urge ... used as a first-line therapy to manage a ... Recognizing the value and importance ... "Opioid Prescribing: Acute and Postoperative Pain Management" stresses ...
(Date:10/4/2017)... LAWRENCE, Mass. , Oct. 4, 2017 /PRNewswire/ ... developer of single-use, self-contained, illuminating medical devices, today ... National Health Surveillance Agency (or Agência Nacional ... ®. The first single-use, cordless surgical retractor with ... ONETRAC provides optimal access, illumination and exposure of ...
Breaking Medicine Technology: