Image Ratings | PVB (n = 26) | PICB (n = 32) | P value | |
---|---|---|---|---|
Bony elements (TP/Rib) | Expert | 2.08 ± .98 | 2.79 ± .37 | .001 |
Novice | 2.14 ± .93 | 2.6 ± .52 | .09 | |
Pleura | Expert | 1.9 ± 1.1 | 2.8 ± .42 | .001 |
Novice | 1.9 ± .97 | 2.62 ± .59 | .002 | |
Ligament/IIM | Expert | 1.67 ± 1.07 | 2.07 ± .89 | .18 |
Novice | 1.33 ± .76 | 1.78 ± .82 | .05 | |
Needle | Expert | 1.69 ± 1.12 | 2.21 ± 1.01 | .07 |
Novice | 1.0 ± 1.06 | 1.59 ± 1.18 | .06 | |
Local Anesthetic Spread | Expert | 2.23 ± .86 | 2.65 ± .72 | .03 |
Novice | 1.73 ± .78 | 2.0 ± .89 | .29 | |
Composite Score | Expert | 9.58 ± 4.22 | 12.48 ± 2.72 | .008 |
Novice | 8.08 ± 3.28 | 10.57 ± 3.01 | .01 | |
Block Characteristics | ||||
LA volume (cc) | 14.2 ± 4.7 | 12.6 ± 3.2 | .126 | |
Imaging time (s) | 43.3 ± 40.5 | 26.8 ± 16.8 | .039 | |
Needling time (s) | 102.5 ± 49.1 | 122.7 ± 76.0 | .245 | |
Distance from midline (cm) | 3.7 ± 1.3 | 5.3 ± 1.2 | < 0.001 | |
Length of needle in body (cm) | 4.1 ± .70 | 4.4 ± 1.5 | .363 |