Saturday, 6 August 2016

Underactive thyroid: a marker of heart disease

Underactive thyroid: a marker of heart disease New Delhi, August 05, 2016: Men and women with underactive or overactive thyroid without any symptoms are at an increased risk of heart disease. Silent or "subclinical" thyroid dysfunction" represents a potentially modifiable –– risk factor for coronary heart disease. Quoting a study from the University of Lausanne in Switzerland, by Dr. Nicholas Rodondi and published in Annals of Internal Medicine, Padma Shri Awardee Dr KK Aggarwal – President Heart Care Foundation of India (HCFI) and Honorary Secretary General IMA said that the likelihood of coronary heart disease, heart–related death and death from any cause is higher by 20 percent, 18 percent, and 12 percent, respectively, in subjects with an underactive thyroid without symptoms –– also referred to as subclinical hypothyroidism. Their findings are based on pooled data from 12 studies identified through a search of MEDLINE (1950 to 2008). Ten of the studies involved population-based groups that included 14,449 subjects. People with an overactive thyroid but without symptoms (silent hyperthyroidism) also had 21 percent, 19 percent and 12 percent greater odds, respectively, of heart disease, heart–related death, and death from any cause. The screening test for thyroid is TSH blood test. The normal values are 0.3 to 3 mIU/L. A value between 3 and 10 is considered subclinical hypoactive thyroid and a value of less than 0.3 without symptoms is considered subclinical overactive thyroid

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