Efficacy and Mechanism of Intravenous Sotalol for Termination of Paroxysmal Supraventricu

Efficacy and Mechanism of Intravenous Sotalol for Termination of Paroxysmal Supraventricular

Tachycardia

佚名

【期刊名称】《《南京医科大学学报（自然科学版）》》 【年(卷),期】2000(020)002

【摘要】Objectives To study the efficacy and mechanism of intravenous sotalol(Sol) for termination of paroxysmal supra-ventricular tachycardia ( SVT). Methods Sol or normal saline (NS) were administrated intravenously in patients with SVT induced by trans-esophagus left atrial stimulation. Results Conversion to sinus rhythm occurred in 65.2% (15/23) patients who received Sol (Sol group) at total dose of 1.5 mg/kg, the average conversion time being ( 10. 7 ± 11.6) min after the start of sotalol infusion. Conversion to sinus rhythm appeared in 4.8% (1/21) patients who were treated with NS (NS group). The efficacy between two groups was significantly different ( P ＜0. 01 ). The site of termination of tachycardia was predominantly at the antegrade atrioventricular node ( AV N ) in atrioventricular reentrant tachycardia ( AV RT ) (3/4) and at the retrograde fast pathway of AV N in atrioventricular nodal reentrant tachycardia ( AV N RT ) ( 4 / 6 ) . During the course of Sol infusion, both ventricular rate of SVT and systolic blood pressure ( SBP ) decreased. HR decreased from (173. 3±28. 4)