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 |