Source:http://linkedlifedata.com/resource/umls/id/C0002911
CSP: block anesthesia; regional anesthesia in which local anesthetic solution is injected about nerves to inhibit nerve transmission; includes spinal, epidural, nerve block, and field block anesthesia, but not local or topical anesthesia.,NCI: The administration of pharmaceutical agents intended to produce loss of sensation in a particular anatomical region.,NCI: A temporary loss of feeling or awareness in a part of the body, such as an arm or a leg, caused by special drugs or other substances called anesthetics. The patient stays awake but has no feeling in the part of the body treated with the anesthetic.