1672648 SVT sustained ventricular tachycardia 166 1671066 SVA supraventricular arrhythmias 58 3503023 SVTA supraventricular tachyarrhythmias 13 1672714 SVT supraventricular arrhythmias 9 3503024 SVTA supraventricular tachyarrhythmia 8