in 36 % ar detected by lt-ecg had to be considered as precursors of syncopes ( i.e . bradycardia less than 40 b.p.m. , tachycardia greater than 160 b.p.m. , av-block ii/ii and iii , or ventricular arrhythmias lown iv ) .
C0003811
ar
C0428977
bradycardia