منابع مشابه
Heart size in thyrotoxicosis.
Sunmary (1) Enlargement of the heart was found in 35% of a group of older patients with thyrotoxicosis who had no evidence of associated heart disease. Atrial fibrillation was present in 48% of patients with cardiac enlargement and in 10% with a normal sized heart. Both complications were more common when there was associated heart disease. (2) In patients with an enlarged heart but no associat...
متن کاملThyrotoxicosis and the Heart
Virtually all hormones secreted by major endocrine glands have a direct or indirect effect on the cardiovascular system; and although the precise relationship between excess thyroxin and heart disease has not been defined, thyrotoxic heart disease has been well recognized for over a century. Parry, in 1825, first described cardiac involvement in thyrotoxicosis, consisting of palpitations, irreg...
متن کاملHyperkalemia-induced complete heart block
Background: Potassium, as an extracellular ion, plays an important role in the electrophysiologic function of the myocardium and any change in extracellular concentration of this ion might have a marked impression upon myocyte electrophysiologic gain. High serum potassium levels are thought to impair pulse conduction in Purkinje fibers and ventricles more than that in the Atrio...
متن کاملUnusual presentation of thyrotoxicosis as complete heart block and renal failure: a case report
INTRODUCTION Thyrotoxicosis is a clinical entity often very difficult to diagnose without biochemical confirmation as its clinical features can be highly varied. The most common cardiac manifestations of thyrotoxicosis are resting sinus tachycardia, supraventricular tachycardia including atrial fibrillation and atrial flutter with or without cardiac failure. Bradycardia and atrio-ventricular co...
متن کاملSevere right heart failure in two patients with thyrotoxicosis.
Congestive heart failure is a recognised complication of uncontrolled thyrotoxicosis but isolated right heart failure is rarely seen in association with thyrotoxicosis. Two cases of right heart failure associated with thyrotoxicosis are presented. In a 45-year-old man with right heart failure, investigations for all common secondary causes of right heart failure were negative. The only concurre...
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ژورنال
عنوان ژورنال: Journal of the Royal Society of Medicine
سال: 2001
ISSN: 0141-0768,1758-1095
DOI: 10.1177/014107680109401030