Ultrasound can guide new regional blocks

The use of ultrasound in regional anesthesia techniques has aroused much interest during the past decade. Ultrasound has allowed the development of the classic regional techniques described by landmark references, neurostimulation guide, loss of resistant technique, or “click” and “pop” methods. Ultrasound application to anesthesiology has enabled not only to directly monitor the procedures already described but also to report new techniques. Because some of those techniques are a novelty and the literature on them is sparse, the purpose of this article is to provide information on the most recent ultrasound-guided techniques by reviewing the literature and giving practical advice for patient management according to our own experience.