Featured Research

from universities, journals, and other organizations

The case for maintaining current regulations on I-131 therapy

Date:
May 5, 2011
Source:
Society of Nuclear Medicine
Summary:
Two new articles make a case for maintaining current US Nuclear Regulatory Commission regulations on the release of patients who undergo radioactive iodine treatments for thyroid cancer, known as I-131.

Two articles in the June issue of The Journal of Nuclear Medicine make a case for maintaining current U.S. Nuclear Regulatory Commission (NRC) regulations on the release of patients who undergo radioactive iodine treatments for thyroid cancer. Currently, the NRC recommends outpatient treatment for patients receiving radioactive iodine after total or near-total thyroidectomy; however, several groups have been urging NRC to mandate overnight hospital stays to protect others from a perceived risk of radiation exposure.

The article, "Delayed Initial Radioactive Iodine Therapy Resulted in Poor Survival in Patients with Metastatic Differentiated Thyroid Carcinoma: A Retrospective Statistical Analysis of 198 Cases," evaluated the clinical factors that affected the survival of postoperative patients with differentiated thyroid cancer (DTC) in Japan. According to Tatsuya Higashi, MD, PhD, this is the first report that shows the prognostic value of early performance of radioactive iodine therapy.

Researchers found that the risk of death for patients who received radioactive iodine treatment more than 180 days after a total thyroidectomy was 4.22 times higher than for those treated within the initial 180 days. Several reasons were cited as causing delays in treatment time in Japan, including strict regulation of radioactive materials, a long waiting list for admission to the radioactive iodine therapy ward and delayed referral by the surgeons who performed the total thyroidectomy.

In a related article, "The Real Cost of Theoretic Risk Avoidance: The Need to Challenge Unsubstantiated Concerns About 131I Therapy," Stanley J. Goldsmith, MD, cites the Japan study as a reason to maintain current NRC regulations. If the NRC were to require overnight stays, he reasons, a backlog could result, causing delays in treatment of patients.

He further addresses the concerns of individuals and political representatives seeking to reverse or revise the current NRC guidelines on patient release after 131I therapy, stating that in spite of many epidemiologic studies completed on the issue, low-dose radiation has never been established to be a causal factor in the development of malignancy. "In no instance," he writes, "is an individual likely to receive radiation exposure in excess of a level deemed exceedingly safe."

The Society of Nuclear Medicine issued a joint statement with the American Thyroid Association, The Endocrine Society and the American Association of Clinical Endocrinologists explaining that based on existing scientific evidence, the current 131I regulations are safe for patients, their families and the public when radiation safety instructions are followed. However, SNM supports reexamination of this issue if new data emerge that support concerns about public safety.


Story Source:

The above story is based on materials provided by Society of Nuclear Medicine. Note: Materials may be edited for content and length.


Journal References:

  1. T. Higashi, R. Nishii, S. Yamada, Y. Nakamoto, K. Ishizu, S. Kawase, K. Togashi, S. Itasaka, M. Hiraoka, T. Misaki, J. Konishi. Delayed Initial Radioactive Iodine Therapy Resulted in Poor Survival in Patients with Metastatic Differentiated Thyroid Carcinoma: A Retrospective Statistical Analysis of 198 Cases. Journal of Nuclear Medicine, 2011; 52 (5): 683 DOI: 10.2967/jnumed.110.081059
  2. S. J. Goldsmith. The Real Cost of Theoretic Risk Avoidance: The Need to Challenge Unsubstantiated Concerns About 131I Therapy. Journal of Nuclear Medicine, 2011; 52 (5): 681 DOI: 10.2967/jnumed.110.081927

Cite This Page:

Society of Nuclear Medicine. "The case for maintaining current regulations on I-131 therapy." ScienceDaily. ScienceDaily, 5 May 2011. <www.sciencedaily.com/releases/2011/05/110505132119.htm>.
Society of Nuclear Medicine. (2011, May 5). The case for maintaining current regulations on I-131 therapy. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2011/05/110505132119.htm
Society of Nuclear Medicine. "The case for maintaining current regulations on I-131 therapy." ScienceDaily. www.sciencedaily.com/releases/2011/05/110505132119.htm (accessed September 17, 2014).

Share This



More Health & Medicine News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Study Links Male-Pattern Baldness To Prostate Cancer

Study Links Male-Pattern Baldness To Prostate Cancer

Newsy (Sep. 16, 2014) New findings suggest men with a certain type of baldness at age 45 are 39 percent more likely to develop aggressive prostate cancer. Video provided by Newsy
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:
from the past week

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