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Hemodynamic Changes During Contrast Stress Echocardiography
| Variable | Exercise (N=278) | Dobutamine (N=88) |
|---|---|---|
| Mean±SD duration of test (minutes) | 8.0±1.9 | 13.5±2.6 |
| (median, range) | (8, 2.9-14) | (14, 5-19) |
| Δ HR (SE), beats/minute* | 77.62 (1.04) | 68.65 (1.46) |
| Δ rate pressure product (SE), mm Hg/minute* | 16592 (257.2) | 10928 (380.8) |
p<0.0001.
Δ stress-rest values; HR, heart rate; SE, standard error.
