Table 7. Electrophysiologic Parameters from Initial Baseline Testing
For a given parameter, results having a normal distribution are presented as the mean ± SD and P value determined from the Student's t -test. Results not having a normal distribution are presented as the median (25th, 75thpercentile) and p value determined from the Wilcoxon Rank Sum test. AERP = atrial effective refractory period; AFRP = atrial functional refractory period; AH = atriohisian interval; AVBCL = atrioventricular block cycle length; AVNFRP = atrioventricular nodal functional refractory period; CL = sinus cycle length; HV = Hisioventricular interval; PA =P wave-to-atrial interval; PR = PR interval; QRS = QRS duration; QTc = rate-corrected QT interval; VABCL = ventriculoatrial block cycle length; VERP = ventricular effective refractory period; VFRP = ventricular functional refractory period.