FICB details | All FICB (n=381) | Delirium (n=28) | No delirium* (n=490) | P value |
FICB | 100% | 78.6% (22) | 73.4% (359) | 0.55 |
Hours to FICB, median (IQR) | 3.7 (2.4–6.4) | 4.5 (2–7) | 3.6 (2–6) | |
FICB before surgery | 92.4% (352) | 100.0% | 91.9% (330) | 0.40 |
Continuous infusion | 61.2% (233) | 50% (11) | 61.8% (222) | 0.27 |
Single injection | 38.9% (148) | 50% (11) | 38.2% (138) | |
Second FICB performed† | 2.9% (11) | 18.2% (4) | 2.0% (7) | 0.002 |
Placed by anesthesiologist | 96.6% (368) | 95.5% (21) | 96.7% (347) | 0.76 |
FICB placement in the ED | 34.9% (133) | 45.5% (10) | 34.2% (123) | 0.29 |
FICB drug | 0.61 | |||
Bupivacaine | 66.1% (251) | 59.1% (13) | 66.5% (238) | |
Dose,‡ single | 0.3 (0.2–1.0) | 0.3 (0.3–1.0) | 0.3 (0.2–1.0) | |
Dose,‡ continuous | 0.2 (0.1–0.5) | 0.2 (0.2–0.2) | 0.2 (0.1–0.5) | |
Bupivacaine liposomal | 10.8% (41) | 9.1% (2) | 10.9% (39) | |
Dose,‡ single | 1.3 (0.3–3.1) | 1.3 (1.3–1.3) | 1.3 (0.3–3.1) | |
Ropivacaine | 23.1% (88) | 31.8% (7) | 22.6% (81) | |
Dose,‡ single | 0.5 (0.2–0.5) | 0.3 (0.3–0.4) | 0.5 (0.2–0.5) | |
Dose,‡ continuous | 0.2 (0.2–0.2) | 0.2 (0.2–0.2) | 0.2 (0.2–0.2) |
Seven patients developed delirium >48 hours postoperatively and are in the no delirium group.
Bold values denote statistical significance p<0.05.
*Delirium, assessed from arrival through 48 hours postoperatively.
†Timing of second FICB: 5, both preoperative; 6, preoperative and postoperative.
‡Median (range) dose of agent.
FICB, fascia iliaca compartment block.