Digitalis toxicity.

Abstract:

:The principal causes of digitalis toxicity are overdose, reduced volume of distribution, reduced renal elimination, and increased myocardial sensitivity. The metabolic mechanism of digitalis toxicity is intense inhibition of sarcolemma Na-K ATPase, which leads to increases of intracellular Na+ and Ca2+ and arrhythmogenic membrane ionic currents. A variety of cellular electrophysiologic effects and effects on the nervous system are responsible for the array of clinical arrhythmias seen during digitalis toxicity, i.e., sinus bradycardia, atrioventricular block, nonparoxysmal atrioventricular junctional tachycardia, and ventricular tachycardia.

journal_name

J Clin Pharmacol

authors

Bigger JT Jr

doi

10.1177/009127008502500707

subject

Has Abstract

pub_date

1985-10-01 00:00:00

pages

514-21

issue

7

eissn

0091-2700

issn

1552-4604

journal_volume

25

pub_type

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