Amiodarone thyroiditis ultrasound

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  • The incidence of AIT varies greatly (between 0
  • May 4, 2023 · thyroid manifestations of generalized disease
  • This thyroiditis is an intrinsic toxic effect of amiodarone
  • 1 mL
  • factitious hyperthyroidism, hamburger thyrotoxicosis 4) neoplastic (e
  • Less common etiologies include destructive thyroiditis
  • Jul 1, 2023 · AIT-2, a form of drug-induced destructive thyroiditis, occurs due to true toxicity from amiodarone rather than underlying thyroid disease as in AIT-1

    Thyroid ultrasound scanning often reveals an increased thyroid volume, a hypoechoic

    Amiodarone is an iodine-based, potent antiarrhythmic drug bearing a

    is a uniquely effective antiarrhythmic drug,1–10 but it is also dangerously

    Jean E Mulder, MD Literature review current through: Jan 2024

    On ultrasound, a normal-sized thyroid was seen, with normal echogenicity and mildly increased blood flow

    Treatment with amiodarone is associated with changes in thyroid

    thyroid hormones whereas type 2 AIT is the result of excessive pre-formed thyroid hormone release due to a destructive thyroiditis mediated by amiodarone’s direct toxic effect on the thyroid

    excessive exogenous thyroid hormone iatrogenesis or ingestion (e

    It may be primary, in which the dysfunction pertains to the thyroid gland itself, or secondary, due to hypothalamic or pituitary dysfunction 1

    AIT1 is a form of iodine-induced hyperthyroidism with increased thyroid hormone synthesis, while AIT2 is a form of destructive thyroiditis with increased release

    Thyroiditis is a general term that refers to “inflammation of the thyroid gland”

    5 6 The estimated half-life of amiodarone is between 50 and 100 days

    Doppler ultrasound has been shown to help in the differentiation of the etiology of amiodarone-induced thyrotoxicosis

    Amiodarone-induced thyrotoxicosis develops in 3% of amiodarone-treated patients in the United States and in 10% of those living in iodine-deficient areas of the world

    Most of the effects of amiodarone on thyroid function are thought to be due to the iodine load that is related to drug intake

    radiation thyroiditis; thyroid surgery; drug-induced (e

    TSH receptor antibodies were negative in

    Ultrasound

    These adverse effects may occur in patients with or without preexisting thyroid disease

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  • Amiodarone thyroiditis ultrasound
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