Comfort of the patient during axillary blocks placement: a randomized comparison of the neurostimulation and the ultrasound guidance techniques

Abstract

The present study showed that the ultrasound approaches were less painful and more comfortable than neurostimulation to place axillary blocks. We also showed that, although pain intensity resulting from blocks placement was similar with the ultrasound approaches, very comfortable procedures were more frequent with the out-of-plane than with the in-plane approach.