Table 5.
Estimated survival based on blood pressure group in patients on axial flow LVAD support. Patient average blood pressure was calculated from measures obtained month 3 and onward after LVAD.
| Estimated Survival (%) during Axial Flow LVAD support | |||||
|---|---|---|---|---|---|
| 90 day | 1 Year | 3 Year | p* | P* | |
| MAP Group, mmHg | Log rank p <0.0001 | ||||
| MAP ≤75 (n at risk) | 98.1 ± 0.4% (n=1176) | 84 ± 1.1% (n=1173) | 57 ± 1.9% (n=731) | Reference | 0.005 |
| MAP 76-90 (n at risk) | 99.7 ± 0.01% (n=3896) | 92 ± 0.5% (n=3867) | 70± 1.0% (n=2896) | <0.0001 | 0.004 |
| MAP 91-100 (n at risk) | 99.8 ± 0.1% (n=1496) | 93 ± 0.7% (n=1488) | 71 ± 1.6% (n=1086) | <0.0001 | 0.005 |
| MAP >100 (n at risk) | 99.4 ± 0.4% (n=478) | 89 ± 1.5% (n=470) | 62 ± 3.2% (n=329) | 0.005 | Reference |
| Doppler Group, mmHg | Log rank p <0.0001 | ||||
| Doppler ≤80 (n at risk) | 99.3 ± 0.2% (n=2051) | 88 ± 0.8% (n=2023) | 61± 1.5% (n=1293) | Reference | NS |
| Doppler 81-95 (n at risk) | 99.8± 0.1% (n=4784) | 94± 0.4% (n=4762) | 74± 0.8% (n=3651) | <0.0001 | 0.001 |
| Doppler 96-105 (n at risk) | 99.9± 0.1% (n=1212) | 94± 0.7% (n=1209) | 74± 1.7% (n=899) | <0.0001 | NS |
| Doppler >105 (n at risk) | 99.8 ± 0.2% (n=572) | 92± 1.2% (n=571) | 66± 2.8% (n=399) | NS | Reference |
| SBP Group, mmHg | Log rank p<0.0001 | ||||
| SBP <90 (n at risk) | 98.9 ± 0.2% (n=2150) | 85 ± 0.8% (n=2105) | 58 ± 1.4% (n=1308) | Reference | 0.001 |
| SBP 90-107 (n at risk) | 99.6 ± 0.1% (n=3969) | 92 ± 0.4% (n=3935) | 70 ± 1.0% (n=2897) | <0.0001 | NS |
| SBP 108-119 (n at risk) | 99.9 ± 0.1% (n=1722) | 92 ± 0.7% (n=1717) | 70 ±1.5% (n=1261) | <0.0001 | NS |
| SBP ≥120 (n at risk) | 99.6 ± 0.2% (n=857) | 90 ±1.2% (n=724) | 65 ± 2.5% (n=491) | 0.001 | Reference |
NS= nonsignificant after Bonferroni adjustment (*p threshold p≤0.006)