Use of a Calcium Chelating Agent(NaEDTA) in Cardiac Arrhythmias

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Abstract
The interrelated effects of digitalis and various cations on cardiac rhythmicity are the subject of much recent interest. This paper presents additional data on this subject that carry important therapeutic implications. The chelating agent, disodium ethylene diamine tetra acetate (NaEDTA), has been used intravenously in 14 instances of supraventricular and ventricular arrhythmia. Digitalis had been administered previously in 13 instances, and various degrees of digitalization were encountered. This report summarizes our experience with NaEDTA as a test of the degree of digitalis therapy and as treatment of the arrhythmias observed.