Table 2.
Primary and Secondary Hemodynamic Outcomes
| Group SSA (N = 30) | Group PNBs (N = 30) | N = 60 | |
| N (%) | N (%) | p-value* | |
| Hemodynamic instability | 13 (43.33%) | 5 (16.67%) | 0.048 |
| Bradycardia rate | 10 (33.33%) | 3 (10%) | 0.028 |
| Number of hypotensive episodes per patient** | |||
| 1 episode | 8 (61.5%) | 4 (80%) | 0.394 |
| 2 episodes | 5 (38.5%) | 1 (20%) | |
| Need for inotropes and/or vasopressors | 0 (0%) | 0 (0%) | ° |
| Mean (SD) | Mean (SD) | p-value* | |
| TWA-MAP (mmHg) TWA-Hypotension (mmHg)** | 66.39 (6.14) | ||
| 0.69 (0.3) | 66.4 (5.45) | ||
| 0.46 (0.27) | 0.991 | ||
| 0.155 | |||
| MAP (mmHg) | 66.57 (6.36) | 66.43 (5.49) | 0.927 |
| MAP at hypotension episode 1 (mmHg) | 58.49 (2.85) | 60.4 (2.51) | 0.202 |
| MAP at hypotension episode 2 (mmHg) | 61.6 (2.07) | Not applicable | Not applicable |
| Duration of episode 1 (minutes) | 5.23 (0.24) | 5.6 (0.55) | 0.109 |
| Duration of episode 2 (minutes) | 5 (0) | Not applicable | Not applicable |
SSA (selective spinal anesthesia), PNBs (peripheral nerve blocks, TWA-MAP (time weighted average mean arterial pressure), SD (standard deviations)
*Continuous non-parametric data were compared with Mann–Whitney test, dichotomous data were compared with χ2test
° the data were practically costant
**These statistical measures refer only to the patients who experienced hemodynamic instability