The paper is dedicated to the description of a technique now new but also not very used, of regional anesthesia, indicated for surgery of upper limbs: the interscalene brachial plexus block. In Author's experience this type of anesthesia has many indications, related especially to orthopedic and traumatologic surgery, in patients with high anesthesiologic danger. This type of regional anesthesia by interscalene technique is, in Author's opinion, much better than the axillar technique, now moore frequently used.