We investigated the effect of hyperthyroidism on the responsiveness of the rabbit corpus cavernosum smooth muscle. In male albino rabbits, hyperthyroidism was established by oral feeding of L-thyroxine at increasing dosages (150-450 microg/kg) over an 8-week period. This treatment produced a stable hyperthyroid state as indicated by the increased serum T4 levels. The reactivity of corpus cavern...

Hyperthyroidism is associated with many heart diseases. Thyrotoxic state has a relationship with coronary spasm. We present a case of a non-menopausal woman with hyperthyroidism who complained of chest pain. The diagnosis of coronary spasm was confirmed by coronary angiography (CAG). She is treated well with anti-thyrotoxicosis and anti-anginal medication. We recommend not use CAG as the first ...

Benign thymic hyperplasia (BTH) is a known feature of hyperthyroidism, but is infrequently appreciated by clinicians. In most cases thymic enlargement is minimal; however, it may occasionally present as an appreciable anterior mediastinal mass. While surgical resection is a common approach to such a mass, recognition of the benign nature of BTH and its regression following treatment of hyperthy...

Iodine-induced hyperthyroidism can develop even in the presence of an otherwise normal gland. One of the less common sources of iodine is tablets of seaweed, sold over the counter without prescription. We report the case of a 72 year old female who developed clinical and laboratory evidence of hyperthyroidism while ingesting sea-kelp (Vitalia) tablets. Six months after stopping the tablets, the...

BACKGROUND In humans, measurement of serum thyroid-stimulating hormone (TSH) concentration is commonly used as a first-line discriminatory test of thyroid function. Recent reports indicate that canine TSH (cTSH) assays can be used to measure feline TSH and results can help diagnose or exclude hyperthyroidism. OBJECTIVES To investigate the usefulness of cTSH measurements as a diagnostic test f...

Hyperthyroidism is specified by the mass manufacture of thyroid hormone and/or release from gland. Thyrotoxicosis a sickness in which impacts an inappropriate enhancement on tissues lead to difficulties and systemic symptoms. High levels cause hyper metabolic condition that induces multiple manifestations. Managing hyperthyroidism cases considered difficult challenge because variety underlying ...

A 38-year-old man with a metastatic gonadotropin-secreting tumor of unknown primary origin presented with both clinical and biochemical findings of hyperthyroidism in association with markedly increased concentrations of human choriogonadotropin (hCG) in plasma. After chemotherapy, the concentrations of both hCG and free thyroxin decreased and the patient became euthyroid. We discuss the rare o...

Background Hyperthyroidism in elderly patients is not to be underevaluated, since it is characterized in such an age range by particular clinical and prognostic features, surgery is the principal treatment of hyperthyroidism, even if therapy and percutaneous alcoholization may play an alternative role in some cases. However the surgical risk may be high in elderly because the presence of comorb...

Iodine in the form of Lugol's iodine is commonly prescribed for the treatment of goitre. Eighteen patients, who had positive history of ingestion of iodine are described. Some of the patients had hyperthyroidism when seen while others had thyrotoxicosis like symptoms after taking iodine. Hyperthyroidism was confirmed clinically, radio-isotopically and by response to treatment. Iodine was incrim...

In subclinical hyperthyroidism, thyroid-stimulating hormone (TSH) levels are suppressed below normal range but serum-free thyroxine and free triiodothyronine levels are within normal range. The clinical manifestations can be highly variable and patients mostly remain undiagnosed. Sinus tachycardia, atrial premature beats and atrial fibrillation are the reported tachyarrhythmias in such patients...