Table 2: Measured Electrophysiologic Parameters with Incremental Dobutamine Dosing
Baseline 5 mcg/kg/min 10 mcg/kg/min 15 mcg/kg/min 20 mcg/kg/min
SCL 909 (793, 1056) 850 (761, 1080) 801 (600, 899) 618 (545, 744) 556 (496, 701)
AVNBCL 360 (320, 430) 360 (305, 385) 305 (270, 370) 280 (250, 320) 250 (230, 300)
VABCL 455 (360,600) 420 (330, 530) 340 (280, 480) 300 (250, 390) 290 (260, 360)
AH interval 74 (64, 99) 71 (61, 87) 71 (58, 86) 62 (55, 71) 58 (51, 70)
HV interval 50 (43, 54) 47 (42, 56) 48 (41, 52) 47 (41, 53) 47 (41, 54)
QT 411 (366, 451) 414 (380, 450) 394 (365, 427) 377 (344, 418) 362 (319, 393)
AVNERP 320 (260, 370) 290 (250, 320) 260 (220, 310) 230 (190, 300) 220 (200, 290)
QRS duration 95 (83, 105) 93 (80, 104) 90 (82, 104) 93 (84, 102) 88 (78, 100)
AERP 230 (200, 260) 225 (200, 250) 210 (190, 240) 200 (180, 240) 190 (165, 220)
VERP 260 (235, 290) 240 (220, 280) 240 (200, 260) 210 (200, 250) 220 (190, 240)
SBP 112 (99, 124) 111 (104, 119) 118 (108, 126) 124 (107, 136) 117 (100, 135)
DBP 65 (58, 72) 64 (58, 70) 62 (56, 68) 60 (54, 69) 59 (53, 65)