Table 2.
Study data. Results are expressed as mean±SD, median [IQR] or n (%)
| Hypobaric unilateral spinal anaesthesia (n=19) | General anaesthesia (n=21) | p | |
|---|---|---|---|
| Incidence of hypotension | |||
| Moderatea | 17 (89) | 21 (100) | 0.22 |
| Deepb | 11 (58) | 21 (100) | <0.001 |
| Severec | 6 (32) | 15 (71) | 0.03 |
| Episodes of hypotension | |||
| Moderatea | 6 [1–9] | 3 [2–6] | 0.49 |
| Deepb | 1 [0–7] | 5 [2–7] | 0.08 |
| Severec | 0 [0–1] | 4 [0–9] | <0.001 |
| Ephedrine (mg) | 6 [0–17] | 36 [21–57] | <0.001 |
| Fluids (mL) | |||
| Crystalloids | 375 [282–483] | 435 [347–546] | 0.20 |
| HES 130/0.4 | 250 [231–311] | 300 [269–318] | 0.91 |
| Intraoperative RBC transfusion | 3 (16) | 5 (24) | 0.81 |
| PONV in PACU | 3 (16) | 1 (5) | 0.53 |
| Morphine in PACU (mg) | 0 [0–2] | 0 [0–4] | 0.59 |
| Muscle relaxation | 0.11 | ||
| Excellent | 12 (63) | 19 (90) | |
| Good | 6 (32) | 2 (10) | |
| Fair | 1 (5) | 0 (0) | |
| Poor | 0 (0) | 0 (0) | |
| Surgeon satisfaction | 0.19 | ||
| Excellent | 13 (68) | 19 (90) | |
| Good | 5 (26.5) | 2 (10) | |
| Fair | 1 (5.5) | 0 (0) | |
| Poor | 0 (0) | 0 (0) | |
| Patient satisfaction | 0.32 | ||
| Excellent | 10 (53) | 5 (23) | |
| Good | 7 (37) | 10 (50) | |
| Fair | 0 (0) | 1 (4) | |
| Poor | 0 (0) | 0 (0) | |
| No answer | 2 (10) | 5 (23) | |
| Postoperative complications ≤5 days | |||
| Troponin elevation | 1 (5) | 2 (10) | 0.93 |
| RBC transfusion | 1 (5) | 0 (0) | 0.96 |
| IDDVT | 1 (5) | 1 (5) | 0.51 |
DHS: dynamic hip screw; HES: hydroxyethyl starch; IDDVT: isolated distal deep vein thrombosis, PACU: postanesthesia care unit; PONV: postoperative nausea and vomiting; RBC: red blood cell
a
Systolic blood pressure decrease by >20% from baseline
b
Systolic blood pressure decrease by >30% from baseline
c
Systolic blood pressure decrease by >40% from baseline