Navigation Links
Radiation Exposure Linked to Aggressive Thyroid Cancers
Date:4/20/2009

Environmental or therapeutic contact also led to poorer outcomes, study finds

MONDAY, April 20 (HealthDay News) -- Thyroid cancer patients who've previously been exposed to radiation have more aggressive disease and worse outcomes than other patients, a new study finds.

Researchers at Mount Sinai Hospital in Toronto studied 125 thyroid cancer patients who'd been exposed to radiation -- for example, in the workplace, through environmental exposure, or for treatment of acne or other benign conditions -- at least three years before they had surgery for their thyroid cancer.

The average age of the patients at time of radiation exposure was 19.4 years, and their thyroid cancers were diagnosed an average of 28.7 years later. The patients were followed for an average of 10.6 years after diagnosis. During that time, 16 percent suffered a recurrence of thyroid cancer, and 9 percent had cancer that spread to other areas of the body (distant metastases). At the final follow-up, 86 percent were alive and cancer-free, 4 percent were alive with recurrent thyroid cancer, 4 percent were alive with distant metastases, 4 percent had died of their cancer, and 2 percent had died of unrelated causes.

The researchers compared these patients to a group of 574 thyroid cancer patients who hadn't previously been exposed to radiation and found that the radiation-exposed patients were more likely to:

  • Undergo total or near-total removal of the thyroid -- 83 percent vs. 38 percent.
  • Require additional surgery -- 23 percent vs. 2 percent.
  • Have stage IV disease -- 16 percent vs. 5 percent.
  • Have distant metastases -- 9 percent vs. 2 percent.
  • To have thyroid cancer at follow-up -- 8 percent vs. 3 percent.
  • To have died of the disease -- 4 percent vs. 1.5 percent.

Dr. Raewyn M. Seaberg and colleagues said their findings show "that patients who have been exposed to radiation have more aggressive disease and worse clinical outcomes than other patients with thyroid cancer and, therefore, may require more aggressive treatment."

The study was published in the April issue of the Archives of Otolaryngology -- Head & Neck Surgery.

More information

The American Thyroid Association has more about thyroid cancer.



-- Robert Preidt



SOURCE: JAMA/Archives journals, news release, April 20, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Informational handout key to giving parents a better understanding of CT radiation risks
2. Prophylactic cranial irradiation in small cell lung cancer significantly increases survival
3. Different method of evaluating the urinary tract system reduces radiation dose
4. Radiation and drug combo helps boost efficacy of lung cancer treatment
5. Nucletron Announces Management Buy-Out to More Effectively Meet the Demands of Its Customers and the Radiation Therapy Community
6. Radiation therapy technique reduces length of prostate cancer treatment
7. Radiation therapy technique reduces length of prostate cancer treatment
8. Jefferson radiation oncologists use real-time system to plant seeds against cancer
9. Radiation Therapy Services Acquires North Carolina Facility
10. NASA, NSBRI Select 17 Proposals in Space Radiation Research
11. Breast Cancer Radiation Wont Hurt Immune Health
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Radiation Exposure Linked to Aggressive Thyroid Cancers
(Date:6/23/2017)... Va. (PRWEB) , ... June 23, 2017 , ... The ... the president's nominee for deputy secretary of Veterans Affairs, retired Marine Col. Thomas G. ... Veterans Affairs. , Bowman brings an intimacy with the issues and challenges ...
(Date:6/23/2017)... (PRWEB) , ... June 23, 2017 , ... Everybody has ... it while others prefer to read it, and some people don't like it at ... pornography. Here's what they found: , Erotic literature can give readers a taste of ...
(Date:6/23/2017)... ... June 23, 2017 , ... Ensuring meat products have reached ... the importance of correctly using a meat thermometer. The videos feature University of ... on consumer food safety habits. Dr. Bruhn explains the variety of meat thermometers ...
(Date:6/23/2017)... (PRWEB) , ... June 23, 2017 , ... MD ... Florida. This is MD Now’s 28th facility overall and marks the urgent care center's ... located one mile North of The Falls shopping mall. The new clinic offers a ...
(Date:6/23/2017)... ... June 23, 2017 , ... American Farmer, will feature Chr. ... is slated to air fourth quarter 2017. American Farmer airs Tuesdays at 8:30aET on ... Danish pharmacist, founded Chr. Hansen in Denmark in 1874 after a groundbreaking discovery of ...
Breaking Medicine News(10 mins):
(Date:6/19/2017)... June 19, 2017  Researchers from DRUGSCAN ® ... will host a live, complimentary webinar titled, "Untangling methods ... to the real world" on Wednesday June 28, 2017 ... This webinar will feature interviews with recreational and ... the manipulation techniques abusers use to prepare opioid tablets ...
(Date:6/14/2017)... -- In 2016, Embodied Labs took top prize ... came away with $25,000 in seed-fund investment. Embodied Labs ... "entering the life of another" and by the Journal ... medical professionals in an entirely new dimension." Building upon ... for the Department of Education,s EdSimChallenge, where they received ...
(Date:6/9/2017)... AirXpanders, Inc. (ASX: AXP) (AirXpanders or Company), ... sale and distribution of the AeroForm® Tissue Expander System, ... commercial roll-out in the United States ... hundred (100) medical institutions and health systems, located throughout ... alternative for women who choose reconstructive surgery following a ...
Breaking Medicine Technology: