Research Article
Different Learning Curves for Axillary Brachial Plexus Block: Ultrasound Guidance versus Nerve Stimulation
Table 1
Preoperative patient characteristics. Data are numbers or mean (±SD).
| | Ultrasound | Nerve stimulator | -values |
| Number of records | 259 | 343 | — | Age mean(SD) | 47 (±19.65) | 46 (±18.16) | .866 | Gender (f : m) | 99 : 163 | 127 : 201 | .816 | Missing Data or not defined | — | 15 | | BMI | 26 (±5.34) | 25 (±4.68) | .631 | Surgical characteristics | | | | Bones hand | 66 (25.5) | 74 (22.2) | | Hand soft tissues | 155 (61.0) | 187 (56.2) | | Bones forearm | 26 (10.0) | 37 (16.9) | .058 | Forearm soft tissues | 12 (4.6) | 35 (5.1) | | Missing data or not defined | — | 10 | | ASA physical status | | | | I | 94 (36.3) | 139 (41.9) | | II | 122 (47.0) | 147 (44.3) | .344 | III | 43 (16.6) | 46 (13.3) | | Missing Data or unclear | — | 11 | |
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