Medicina (Buenos Aires)
versión On-line ISSN 1669-9106
Thyrotoxicosis may present with a variety of cardiovascular symptoms. Sinus tachycardia is the most frequently encountered electrocardiographic abnormality and conduction disturbances are extremely uncommon. We present a case of first degree atrio-ventricular block in a patient with newly diagnosed hyperthyroidism and discuss the underlying pathophysiological mechanisms and the clinical implications from the internists standpoint.
Palabras llave : thyrotoxicosis; atrio-ventricular block; cardiovascular manifestations; EKG changes.