Table 2

Pacemaker data

Phase IVa Phase IVb
Lower rate (ppm)72 (8)73 (6)
Upper rate (ppm)145 (10)145 (10)
AV delay (ms) (atrial sensing)141 (13)141 (13)
AV delay (ms) (atrial pacing)192 (9)192 (9)
PVARP (ms)2342-150 2342-150
PV atrial blanking (ms)2032-150 2032-150
Atrial sensitivity (mV)0.9 (0.2)0.9 (0.2)
Pulse duration (ms)0.492-150 0.492-150
Bipolar atrial pacing threshold at the pulse width above (V)1.1 (0.2)1.3 (0.3)
  • 2-150 All 22 patients had the same value so the standard deviation equals 0.

  • AV, atrioventricular; ppm, paced beats/min; PV, postventricular; PVAR, postventricular atrial refractory period.