PMID: 19137794Jan 14, 2009Paper

Hashimoto's thyroiditis is a frequent occurrence in patients with rheumatic mitral stenosis

The Journal of Heart Valve Disease
Derun T ErtugrulYasar Nazligul

Abstract

Rheumatic mitral stenosis (RMS), an autoimmune sequel of streptococcal infection, causes significant morbidity and mortality. As Hashimoto's thyroiditis (HT) is recognized as the major form of chronic autoimmune thyroiditis, it was hypothesized that the coexistence of HT and RMS might have an autoimmune origin. The study aim was to examine this possible relationship. A total of 55 consecutive patients with RMS was examined and compared to 54 healthy controls with normal echocardiographic findings. All subjects underwent transthoracic echocardiography and thyroid ultrasonography after a complete medical history and laboratory examination. The demographic data of the RMS group (38 females, 17 males; mean age 39.9 +/- 9.3 years) and control group (39 females, 15 males; mean age 39.6 +/- 10.5 years) were similar. HT was found to occur significantly more frequently in RMS patients (n = 16; 29%) than in controls (n = 6; 11%) (p = 0.019) The higher frequency of HT in patients with RMS than controls may have genetic associations. Hence, further genetic-based studies should be conducted to provide a better understanding of this suggested relationship.

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