Renaissance of supraclavicular brachial plexus block.

Due to frequent complications, especially pneumothorax, supraclavicular brachial plexus block became less popular. Ultrasonography is a very powerful tool in modern medicine and a real milestone in regional anaesthesia. Ultrasound- guided supraclavicular brachial plexus block reduces the probability of major complications occurrence (like pneumothorax, Horner's syndrome, phrenic nerve palsy). In this review we present the usefulness of ultrasonographic imaging and how to perform efficient ultrasound-guided blockade safely.