الفهرس 
Anatomy of the brachial plexusOnly 14 pages are availabe for public view
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Abstract
Anesthesia options for upper extremity surgery include general anesthesia, regional anesthesia and/or a combination of the two. The advances in regional anesthesia techniques and local anesthetics, in addition to the introduction of different local anesthetic adjuvants in clinical practice have returned attention to regional anesthesia. The infraclavicular block is designed to deposit anesthetic high in the brachial plexus to achieve anesthesia of the hand, forearm, elbow, and distal arm to meet the axillary and musculocutaneous nerves at the level of the cords before these nerves, leave the brachial plexus sheath. Levobupivacaine is the enantiomer of racemic bupivacaine; it has less cardiotoxicity compared with bupivacaine and its pharmacology and
duration of anesthesia are similar to those of bupivacaine Local anesthetic adjuvants such as magnesium sulphate have been
evaluated for their abilities to prolong the analgesic duration of brachial plexus blocks, and results have varied. Few studies evaluated the effect of magnesium sulphate as an additive to local anesthetics during peripheral nerve block The aim of this study was to evaluate the effect of adding magnesium sulphate, in doses of 200mg & 400mg on anesthetic characteristics and postoperative analgesia of levobupivacaine during infraclavicular brachial plexus block in patients scheduled for upper limb surgery.