From:  Blood pressure response: impact on the results of ABCDE-stress echocardiography in patients with known and suspected coronary artery disease

 Characteristics of patients demonstrating hypertensive and normotensive exercise responses

IndexHRE (n = 70)NRE (n = 123)p
LAD stent history, n (%)30 (42.9)55 (44.7)0.026
HR rest, b/min (M ± SD)74 ± 1477 ± 130.073
RWT (M ± SD)0.49 ± 0.100.46 ± 0.100.070
Thickness of the posterior wall of the left ventricle, mm (M ± SD)10.6 ± 1.810.0 ± 1.70.031
Predefined stress achieved, % (M ± SD)82.5 ± 34.193.7 ± 36.50.035
Low exercise tolerance, n (%)14 (20.0)5 (4.1)0.004
Medium exercise tolerance, n (%)24 (34.3)46 (37.4)0.004
High exercise tolerance, n (%)29 (41.4)55 (44.7)0.004
Very high exercise tolerance, n (%)3 (4.3)15 (12.3)0.003
SBP stress, mmHg (M ± SD)205 ± 23180 ± 21< 0.001
DBP stress, mmHg (M ± SD)99 ± 993 ± 12< 0.001
SBP response to exercise, mmHg (M ± SD)76.9 ± 15.350.7 ± 18.2< 0.001
Double product (SBPmax × HRmах/1,000) (M ± SD)27.3 ± 4.124.8 ± 4.4< 0.001
WMSI stress (M ± SD)1.06 ± 0.201.13 ± 0.260.050
LV force peak, mmHg/mL8.3 ± 4.26.6 ± 3.10.006
Normal force rest, n (%)26 (37.1)23 (18.7)0.001
Subnormal force peak, n (%)10 (14.3)38 (30.9)0.024
Supernormal force peak, n (%)48 (68.6)74 (60.2)0.059
Hypercontractile phenotype peak, n (%)27 (38.6)34 (27.6)0.034
Contractile reserve (M ± SD)1.8 ± 0.51.6 ± 0.50.002
VLAD rest, cm/s (M ± SD)27.2 ± 8.423.7 ± 7.00.009
VLAD stress, cm/s (M ± SD)48.9 ± 16.442.6 ± 13.00.008

DBP: diastolic blood pressure; HR: heart rate; HRE: hypertensive response to exercise; LAD: left anterior descending coronary artery; LV: left ventricular; NRE: normotonic response to exercise; RWT: relative wall thickness; SBP: systolic blood pressure; VLAD: left anterior descending coronary artery velocity; WMSI: wall motion score index