الفهرس 
AbstractOnly 14 pages are availabe for public view
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Abstract
Peripheral nerve blocks have been found to be superior to general anesthesia as they provide effective analgesia with few side effects and can hasten patient’s recovery. Unfortunately, the practice of regional anesthesia does not enjoy widespread endorsement because of inconsistent success, varying from one anesthesiologist to another. Indeed current methods of nerve localization (e.g., paresthesia and nerve stimulation) are essentially ”blind” procedures, since them both rely on indirect evidence of needle-to-nerve contact.Meanwhile, seeking nerves by trial and error and random needle movement can cause complications. Although uncommon, complications such as intravascular local anesthetic injection resulting in systemic toxicity, inadvertent spinal cord injury following interscalene block, pneumothorax following supraclavicular block, and nerve injury have all been reported.