Navigation Links
Adding radiation decreases breast cancer recurrence

Radiotherapy after breast conserving surgery for breast cancer reduces recurrence and prevents development of additional breast tumors in older women with early stage breast disease, according to a new study. Published in the March 1, 2007 issue of CANCER, a peer-reviewed journal of the American Cancer Society, the study suggests that women also benefit from the recommended five years of tamoxifen treatment for hormone responsive tumors. Among women over 65 and treated with breast conserving surgery, the risk of local or regional recurrence increased up to 3.5 times if they did not receive radiation after their surgery.

Great strides have been made in breast cancer treatment. Breast conserving surgery in combination with radiotherapy and mastectomy provide women with two good options for their initial treatment. Augmenting surgery with hormone modulating drugs, such as tamoxifen, further improves survival and reduces recurrence.

Women over 65 are at the highest risk for breast cancer and make up half of those diagnosed. However, they are less likely to receive standard therapy, particularly radiotherapy after breast conserving surgery, than younger women. Making treatment recommendations for older patients, who may have more comorbidities than younger patients, is complicated by under-representation of older women in clinical trials and prognostic studies.

Led by Ann M. Geiger, M.P.H., Ph.D., of Wake Forest University School of Medicine and formerly of Kaiser Permanente Southern California, researchers retrospectively followed 1,837 women over 65 for ten years who were treated with surgery for early stage breast cancer to examine the impact of treatment on the occurrence of recurrent and additional breast tumors for this patient population. This analysis was part of a larger study led by Rebecca Silliman, M.D., Ph.D., of the Boston University Medical Center. It was conducted under the auspices of the National Cancer Institute-funded Can cer Research Network.

They found that women, regardless of age or comorbidities, who underwent breast conserving surgery but no radiotherapy, were more likely to have recurrence of disease or develop additional breast tumors compared to women who received breast conserving surgery and radiation or mastectomy alone. The risk was highest for local and regional recurrence. These results held regardless of tamoxifen treatment, suggesting that adjuvant radiation treatment was highly effective.

In addition, the researchers found that women who received less than one year of tamoxifen were more likely to have disease recurrence or develop additional breast tumors compared to women who completed the recommended five year course.

Based on these study findings, the authors "recommend that mastectomy or breast conserving surgery with radiation therapy, along with adequate duration of adjuvant hormonal therapy for hormone-responsive tumors, be considered standard therapy in women of all ages and comorbidities, excepting those with very limited life expectancies."
'"/>

Source:John Wiley & Sons, Inc.


Related biology news :

1. Adding Radiation Therapy To Chemotherapy Improves Survival In Patients With High-risk Breast Cancer
2. Gene therapy may protect normal tissues during radiation retreatment for lung cancer
3. Jefferson researchers find nanoparticle shows promise in reducing radiation side effects
4. One therapeutic dose of radiation causes 30 percent spongy bone loss in mice
5. Gene therapy protects mice from the effects of whole-body irradiation
6. Cancer stem cells linked to radiation resistance
7. Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage
8. Intravenous gene therapy protects normal tissue of mice during whole-body radiation
9. New way of tracking muscle damage from radiation
10. Men with prostate cancer avoid radiation due to misconceptions
11. Researchers uncover protection mechanism of radiation-resistant bacterium

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... , March 30, 2017  On April 6-7, ... Hack the Genome hackathon at Microsoft,s headquarters ... two-day competition will focus on developing health and wellness ... Hack the Genome is the first ... tremendous. The world,s largest companies in the genomics, tech ...
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... recipients of 13 prestigious awards honoring scientists who have made ... in a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series will feature ... Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ... how to continue to feed a growing nation. At the same time, many of ...
(Date:10/9/2017)... ... 09, 2017 , ... The Giving Tree Wellness Center announces ... needs of consumers who are incorporating medical marijuana into their wellness and health ... As operators of two successful Valley dispensaries, The Giving Tree’s two founders, Lilach ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... providing advanced instruments and applications consulting for microscopy and surface analysis, Nanoscience ... application consulting, Nanoscience Analytical offers a broad range of contract analysis services ...
Breaking Biology Technology: