Different Learning Curves for Axillary Brachial Plexus Block: Ultrasound Guidance versus Nerve Stimulation

<table>Institutional learning curves of the ultrasound group compared to the nerve stimulation group. The different endpoints of the curves reflect that more blocks beyond 40 attempts were evaluated in the nerve stimulation group.</table>

Anesthesiology Research and Practice

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Figure 1

Figure 1: Different Learning Curves for Axillary Brachial Plexus Block: Ultrasound Guidance versus Nerve Stimulation 