Effectiveness of butorphanol as an adjuvant to lidocaine for haematoma or periosteal block: A prospective, randomised, double blind study.

Autor: Shaik, Nawaz Ahmed, Rao, Surisetty Sreenivasa, Chiruvella, Sunil, Rao, Manduri Sreenivasa, Reddy, Siddareddigari Velayudha
Předmět:
Zdroj: Indian Journal of Anaesthesia; Mar/Apr2013, Vol. 57 Issue 2, p150-155, 6p, 1 Diagram, 1 Chart, 2 Graphs
Abstrakt: Background: The peripheral nerve endings carrying pain contains opioid receptors. Blocking these receptors during haematoma block or periosteal block may provide better analgesia. Aim: Evaluation of effectiveness and safety of butorphanol as an adjuvant to lidocaine for haematoma block. Settings and Design: This is a two centre, prospective, individually randomised, two group, parallel, double-blind clinical trial. Methods: In this study, 115 American society of anaesthesiologist grade I and II adult patients scheduled for closed reduction of fractures were randomly allocated into two groups; Group A received 1% lidocaine (2 mg/kg) where as Group B received 1% lidocaine (2 mg/kg) with butorphanol (0.02 mg/kg) during haematoma block. Pain was assessed before, during and after manipulation of fracture by using visual analogue scale (VAS 0-10). Onset time of block, time for first rescue analgesic, 24 hour analgesic requirement and sedation levels were noted. Statistical Analysis: Data analysed with the unpaired t-test with Welch correction assuming unequal variances and Fisher's exact test using Graph pad Prism 5.02 version. Results: Onset time of haematoma block was significantly less in the butorphanol group compared to the lidocaine group (P=0.0003). The mean time for first rescue analgesic was significantly higher and total analgesic requirement was significantly lower in the butorphanol group (P<0.0001). Mean VAS scores were lower and sedation scores were higher in the butorphanol group. Conclusions: Addition of butorphanol to lidocaine quickens onset of haematoma block, provides excellent post manipulation analgesia and decreases 24 hour total analgesic requirement without excessive sedation. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index