Abstract
Perioperative nerve injuries have long been recognized as a potential complication of spinal anesthesia. Fortunately, severe or disabling neurologic complications rarely occur. Risk factors contributing to neurologic deficit after spinal anesthesia include spinal cord ischemia (hypothesized to be related to the use of vasoconstrictors or prolonged hypotension), traumatic injury to the spinal cord or nerve roots during needle or catheter placement, pressure applied to the spinal cord due to hemorrhagic or infectious complications, and choice of local anesthetic solution. Practice guidelines for the safe conduct of spinal anesthesia are influenced by knowledge of the previously published large patient surveys as well as individual case reports of neurologic deficits following central neural blockade. Prevention of complications, as well as early diagnosis and treatment are important factors in the management of regional anesthetic risks.
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