Intra venous regional anesthesia of hand and forearm holds an
important place in developing countries because of its simplicity,
safety, and economy. Anesthesiologists have been striving for many
years to improve the efficacy and duration of regional anesthesia
by injecting opioids close to nerve trunks or nerve endings.
Opioids are most commonly used as adjuncts in IVRA along with local
anesthetics. There is paucity of literature on the use butorphanol,
in IVRA. We evaluated the effects of addition of butorphanol to
lignocaine in Bier's block. We found that addition of 1 mg
butorphanol tartrate to lignocaine in IVRA prolongs the time to
request for first rescue analgesic and lessens the 24 hour total
postoperative analgesic requirement. We recommend the use of
butorphanol 1 mg as an adjunct to lignocaine in IVRA as it provides
better postoperative analgesia, reduces requirement of
postoperative rescue analgesics, and has a good safety profile.
General
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