Thyroiditis silent

Iodine excess (including radiocontrast, amiodarone) Thyrotoxicosis without hyperthyroidism Subacute thyroiditis Silent (painless) thyroiditis... 

Drugs (amiodarone, radiocontrast media, lithium, a-interferon) Silent thyroiditis (including postpartum)... 

Painless (silent, lymphocytic, postpartum) thyroiditis is a common cause of thyrotoxicosis its etiology is not fully understood and may be heterogeneous autoimmunity may underlie most cases. 

A retrospective record review of 300 patients with Graves disease and 100 with silent thyroiditis who had undergone thyroid scans showed that the likelihood of lithium exposure was 4.7 times higher in the latter, suggesting a link between lithium and thyrotoxicosis caused by silent thyroiditis (649). 

Miller KK, Daniels GH. Association between lithium use and thyrotoxicosis caused by silent thyroiditis. Chn Endocrinol (Oxf) 2001 55(4) 501-8. 

Momotani N, Noh J, Ishikawa N, Ito K. Relationship between silent thyroiditis and recurrent Graves disease in the postpartum period. J CUn Endocrinol Metab 1994 79 285-289. 

Silent prophylaxis (SP) has been described as the reduction of iodine deficiency in populations that were not covered by AP. Zois et al. (2003) reported the elimination of iodine deficiency and an increase in autoimmune thyroiditis in one iodine-deficient community in northern Greece, which was surveyed more than once and which did not have AP. Although Belgium has not implemented AP, Ciardelh et al. (2002) documented an increase in urinary iodine in Belgian schoolchildren over a period of several years. Delange et al. (2000) recognized that SP has partially corrected iodine deficiency in western Europe,... 

From 1968 to 1975 the distributioon of iodized salt was silently interrupted in 2 small districts (Podoba, unpublished). Within one year the urinary iodine decreased from about 100 g/24h to about 40 fiq/2 h. In addition, the total iodine in thyroid and thyroxine in serum decreased, while uptake by thyroid and thyrotropin in serum increased. 

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