Table 4.
Time-dependent differences of mean (ΔMAP) arterial blood pressures recorded during perioperative period*
| Variable (mmHg) | Median (interquartile range) in patients with |
|||
|---|---|---|---|---|
| history of hypertension (n = 208) | no history of hypertension (n = 112) | P† | ||
| ΔMAP1-2 | -6.67 (23.33) | -3.67 (23.33) | 0.311 | |
| ΔMAP1-3 | 16.66 (16.67) | 12.50 (16.25) | 0.100 | |
| ΔMAP1-4 | 10.00 (23.75) | 6.67 (20.00) | 0.347 | |
| P‡ | <0.001 | <0.001 | ||
*Abbreviations: ΔMAP1-2 – difference in mean arterial pressure between day before surgery and before anesthesia induction; ΔMAP1-3 – difference in mean arterial pressure between day before surgery and after last bypass; ΔMAP1-4 – difference in mean arterial pressure between day before surgery and entry to intensive care unit.
†Comparison between groups, Mann-Whitney test.
‡Comparison within each group, Friedman test.