Thyroid disorders and cardiovascular outcomes

Data from the Cardiovascular Health Study published in the March 1 issue of JAMA confirm that subclinical hyperthyroidism is associated with an increased risk of atrial fibrillation, but not with other cardiovascular outcomes. There was no association of any CV outcome with subclinical hypothyroidism or overt hypothyroidism. The number of patients with overt hyperthyroidism was too small for analysis.