Variable All Patients Normotensive response Hypertensive response P Value
Base line heart rate (beats/min) 70 + 11 71 + 11 68 + 9 0.12
Base line systolic BP (mmHg) 156 + 25 150 + 22 179 + 24 < 0.0001
Baseline diastolic BP (mmHg) 74 + 16 73 + 16 77 + 15 0.06
Maximum Dobutamine dose (mcg/kg/min) 27 + 11 28 + 11 25 + 10 0.12
Atropine dose (mg) 1.20 + 0.88 1.09 + 0.92 1.1 + 0.86 0.94
Peak stress heart rate (beats/min)
137 + 19
138 + 20
136 + 14
0.40
Base Line LV ejection fraction (%) 62 + 10 63 + 10 61 + 11 0.15
Post Stress LV ejection fraction (%) 71 + 19 74 + 17 60 + 21 < 0.0001
Pre Stress Wall motion abnormality 7% 7% 10% 0.42
Peak stress wall motion abnormality 30% 27% 50% 0.002
85% of MPHR achieved 70% 71% 70% 0.92
LVH on baseline echo 81% 79% 94% 0.01
Mitral lateral E prime (cm/s) 5.90 + 1.79 5.96+ 1.86 5.54+ 1.38 0.15
Mitral E wave deceleration time (ms) 244 + 68 228+ 65 212 + 59 0.12
E/A velocity ratio 1.10 +0.50 1.09 + 0.45 1.08 + 0.42 0.87
High LAP E/E’> 15 43% 45 % 65% 0.02
LAVI ( ml/m2) > 28 71% 70% 90% 0.006
High RAP by echo 28% 26% 36% 0.17