Navigation Links
Thyroid condition increases stroke risk in young adults

DALLAS, April 1, 2010 Young adults with overactive thyroid face a 44 percent increased risk of stroke compared to those with normal thyroid function, according to a study reported in Stroke: Journal of the American Heart Association.

"Strokes of undetermined cause account for between one-third and one-fourth of all ischemic strokes in young people," said Herng-Ching Lin, Ph.D., senior author of the study and professor at the School of Health Care Administration, College of Medicine, Taipei Medical University in Taipei, Taiwan. "To the best of our knowledge, hyperthyroidism has never been considered as a potential risk factor for stroke in the 18 to 44 age group."

Hyperthyroidism, also known as overactive thyroid, is a common endocrine disorder that affects an estimated 0.5 percent (1 in 200 people) to 2 percent (1 in 50 people) of the world's population, including a significant group of young adults, Lin said. The condition causes overproduction of thyroid hormone, which speeds up the metabolism and causes symptoms such as sweating, weight loss, diarrhea and nervousness.

For the study, researchers used data on 3,176 young adults diagnosed with hyperthyroidism between Jan. 1, 1998 and Dec. 31, 2001, and 25,408 comparison patients free of thyroid disease who were treated under Taiwan's national, single-payer healthcare system. The patients' average age was 32.

The researchers tracked each patient's data for five years to identify those who developed ischemic stroke, the most common type of stroke caused by blocked arteries in or leading to the brain. During those five years, 198 of the 28,584 patients developed ischemic stroke (0.7 percent), including 31 (1 percent) of the hyperthyroidism patients and 167 (0.6 percent) of the comparison group, Lin said.

After adjusting for factors including patient age, gender, income, level of urbanization, high blood pressure, diabetes, an irregular heart rhythm called atrial fibrillation (AF), high cholesterol, coronary heart disease and whether they were taking medication to treat heart rhythm problems, the risk of having a stroke during the five-year follow-up period was 44 percent higher for patients with hyperthyroidism than for those without it.

The medical records used in the study are a subset of a large database collected by Taiwan's national health insurance program, in which 98 percent of the population participated as of 2007.

"Hyperthyroidism may be associated with various syndromes or conditions linked to cerebrovascular disease in young adults," Lin said. "However, only case reports or case series were found in the literature, and the causal relationships could not be established."

For example, an association is well known between hyperthyroidism and AF in adults over age 60. AF occurs when the heart beats erratically and ineffectively, and AF can lead to both stroke and sudden cardiac death. There has been a notable absence of data related to the risk of stroke in younger individuals with hyperthyroidism, he said.

"Our study shows an association between hyperthyroidism and the risk of subsequent ischemic stroke in young adults," Lin said. "A more thorough evaluation in future studies may help elucidate the causes of stroke in this age group. Our results indicate a need for thyroid function testing and detection of hyperthyroidism in surveys to identify the causes of ischemic stroke in young people."


Contact: Bridgette McNeill
American Heart Association

Related medicine news :

1. Overactive Thyroid Linked to Stroke in Young Adults
2. Thyroid hormone analogue for treating high cholesterol
3. Thyroid Hormone Analogue for Treating High Cholesterol
4. Thyroid Disease: The Hidden Epidemic
5. No End In Sight To The Armour Thyroid Shortage?
6. Stain repellent chemical linked to thyroid disease in adults
7. It's January...Do You Know Where Your Thyroid Is? Thyroid Awareness Month Focuses on Millions of Undiagnosed Americans with Thyroid Problems
8. Low Thyroid Levels May Up Need for Assisted Delivery
9. Hip surgery success partially predicted by number of other existing conditions
10. Breakthroughs in treatment of spine and back conditions
11. Justice Department Files for Immediate Relief Regarding Conditions at Conway Human Development Center, in Conway, Arkansas
Post Your Comments:
(Date:6/27/2016)... ... 27, 2016 , ... "FCPX editors can now reveal their media with growing ... said Christina Austin - CEO of Pixel Film Studios. , ProSlice Color brings ... users can now reveal the media of their split screens with growing colorful panels. ...
(Date:6/27/2016)... KS (PRWEB) , ... June 27, 2016 , ... ... retailers of Eyeglasses . , Millions of individuals in the United States and ... have become a way to both correct vision and make a fashion statement. Even ...
(Date:6/26/2016)... ... , ... PawPaws brand pet supplements owned by Whole Health Supply ... health of felines. The formula is all-natural and is made from Chinese herbs that ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root ...
(Date:6/25/2016)... ... 2016 , ... Austin residents seeking Mohs surgery services, can now turn to ... Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings specialization to ... fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under the direction of ...
(Date:6/25/2016)... , ... June 25, 2016 , ... As a lifelong ... Cum Laude and his M.D from the David Geffen School of Medicine at UCLA. ... to Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 2016   Pulmatrix, Inc ., (NASDAQ: ... drugs, announced today that it was added to the ... its comprehensive set of U.S. and global equity indexes ... important milestone for Pulmatrix," said Chief Executive Officer ... our progress in developing drugs for crucial unmet medical ...
(Date:6/24/2016)... June 24, 2016  Arkis BioSciences, a leading ... and more durable cerebrospinal fluid treatments, today announced ... Series-A funding is led by Innova Memphis, followed ... other private investors.  Arkis, new financing will accelerate ... the market release of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... 23, 2016 Research and Markets has ... - Forecast to 2022" report to their offering. ... for the patients with kidney failure, it replaces the function ... the patient,s blood and thus the treatment helps to keep ... in balance. Increasing number of ESRD patients ...
Breaking Medicine Technology: