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Table 2 Rest and stress data

From: Arterial pressure changes monitoring with a new precordial noninvasive sensor

  EXERCISE   DIP   PACING
N of pts 99   41   6
Age (yrs) 56 ± 14 § 68 ± 11   68 ± 10
Gender (M/F) 68/31   27/14   4/2
BSA (m2) 1.88 ± .19   1.83 ± .16   1.87 ± .28
Standard echo measurements      
LVMI (g/m2) 104 ± 28   104 ± 20   138 ± 34
HR rest (bpm) 73 ± 16   66 ± 13   71 ± 10
HR peak (bpm) 131 ± 24 Δ 84 ± 13 * 132 ± 13
LV EF % rest 59 ± 11   58 ± 13   51 ± 11
LV EF % peak 67 ± 14 62 ± 13 * 45 ± 16
WMSI rest 1.11 ± .29   1.17 ± .32   1.28 ± .46
WMSI peak 1.13 ± .31   1.19 ± .32   1.4 ± .46
Δ WMSI (rest-peak) .02 ± .10   .01 ± .07   .15 ± .24
Sensor built second heart sound (S2) amplitude changes      
S2 rest (mg) 7.7 ± 4.9   7.1 ± 2.8   5.8 ± 1.4
S2 peak (mg) 15.9 ± 8.7 § 7.2 ± 3   7.7 ± 2.4
S2 Δ rest-peak (mg) 8.2 ± 6.1 § .1 ± 1.5   1.8 ± 1.9
S2 Δ % (rest-peak) 133 ± 104 § 2 ± 22   31 ± 27
Perpheral pressures, load and coupling      
SBP rest (mmHg) 134 ± 21   137 ± 20   131 ± 25
SBP peak (mmHg) 189 ± 26 § 127 ± 26   137 ± 37
Δ SBP (rest-peak, mmHg) 55 ± 25 § -8 ± 17   6 ± 17
DBP rest (mmHg) 74 ± 12   71 ± 12   74 ± 11
DBP peak (mmHg) 94 ± 13 § 67 ± 13   75 ± 15
Δ DBP (rest-peak, mmHg) 20 ± 13 § -4 ± 10   1 ± 15
Mean pressure rest (mmHg) 94 ± 13   93 ± 12   93 ± 14
Mean pressure peak (mmHg) 126 ± 15 § 88 ± 17   96 ± 20
Δ mean pressure (rest-peak, mmHg) 32 ± 14 § -5 ± 12   2 ± 15
SVR rest (dyne * sec * cm-5) 2134 ± 802   2118 ± 702   1652 ± 533
SVR peak (dyne * sec * cm-5) 1501 ± 547   1551 ± 747   1546 ± 620
Δ SVR (rest-peak, dyne * sec * cm-5) -632 ± 669 -567 ± 613   -106 ± 382
Arterial compliance rest (mL *m-2/mmHg) 0.49 ± 0.18   0.48 ± 0.2   0.7 ± 0.38
Arterial compliance peak (mL *m-2/mmHg) 0.33 ± 0.11 Δ 0.55 ± 0.22   0.4 ± 0.2
Δ Arterial compliance (rest-peak, mL *m-2/mmHg) -0.17 ± 0.17 Δ 0.07 ± 0.15 * -0.3 ± 0.24
Arterial elastance index rest (mmHg/mL/m2) 4.7 ± 1.5   4.5 ± 1.5   3.6 ± 1.1
Arterial elastance index peak (mmHg/mL/m2) 6.2 ± 1.8 Δ 4.1 ± 1.1 * 6.3 ± 2.5
Δ Arterial elastance index (rest-peak, mmHg/mL/m2) 1.5 ± 1.6 Δ -.4 ± 1.4 * 2.7 ± 1.7
Ventricular/arterial coupling rest (SP/ESV/EaI ratio) 1.8 ± .9   1.8 ± .9   1.3 ± .7
Ventricular/arterial coupling peak (SP/ESV/EaI ratio) 2.9 ± 1.9 § 2.1 ± 1.1   1.1 ± .8
Δ Ventricular/arterial coupling (rest-peak) 1.1 ± 1.6 § .4 ± .6   -0.2 ± .4
Cardiac index rest (L/min/m2) 2 ± 0.7   1.9 ± 0.5   2.5 ± 0.7
Cardiac index peak (L/min/m2) 3.9 ± 1.3 § 2.7 ± 0.9   2.7 ± 0.8
Δ Cardiac index (rest-peak, L/min/m2) 1.9 ± 1.2 § 0.7 ± 0.6   0.3 ± 0.5
  1. §= significant differences between exercise and both dipyridamole and pacing stress pts; ‡ = significant differences between exercise and pacing stress pts; * = significant differences between dipyridamole and pacing stress pts; Δ = significant differences between exercise and dipyridamole stress pts