61 REVERSION OF SUPRAVENTRICULAR PAROXISTIC TAQUICARDIA (S.P.T.)

Abstract

On the basis of 3268 admissions, it was possible to treat 50 patients with S.P.T.(age between 10d. and 14y.) 31 patients were associated with pathological findings, the others were defined as idiopathics. The diagnosis of S.P.T. was the typical ECG with heart rate between 180 and 300 and associated with clinical symptoms. It was possible to revert to a sinus rhythm in 32 patients with imtravenous Lanatoside C alone. In 9 patients it was necessary to add other drugs besides the digitalis: Verapamil, Quinidine, Propanolol, Amiodarone. Finally in other 9 patients, digitalis was not used, in the begining because there was no indication and it was possible to revert the arrythmia with others drugs or cardioversion. From the analysis of the results it was possible to draw the following conclusion: 1) Idiopathic S.P.T. was more frequent in children under one year, secondary S.P.T. was more frequent above one year; 2) Lanatoside C alone was effective in 64% of the cases, and it was necessary smaller doses of the drug than is habitually indicated for different ages (< 1 y:X: 0,06mg/Kg/;D.S.0,014 and > 1y:X:0,028mg/Kg D.S.O.,018,p< 0,001). For the different groups of ages there was a negative correlation with the doses of drug given (0,72; D.S.O,01;p < 0,001); 3) In a few cases other drugs than digitalis were necessary at the bigining of treatment.

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