the following parameters were recorded : sinus rate ( sr ) , corrected sinus node recovery time ( snrt ) , sinoatrial conduction time ( sact ) , pa interval , right atrial effective refractory period ( erp ) , right atrial functional refractory period ( frp ) , ah interval at rest , at 100 bpm , luciani-wenckebach point ( lwp ) , av node erp and frp , hv interval , his-purkinje erp , right ventricular erp , corrected qt interval .
C0037189
sinus node
C0225844
right atrial