• Users Online: 90
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2020  |  Volume : 22  |  Issue : 2  |  Page : 161-165

Comparative study of two different doses of dexmedetomidine as an adjuvant to bupivacaine in the peripheral nerve block

1 Department of Anaesthesiology and Critical Care, INHS Asvini, Mumbai, Maharashtra, India
2 Department of Anaesthesiology and Critical Care, Armed Forces Medical College, Pune, Maharashtra, India
3 Department of Anaesthesiology, Army Hospital (Research and Referral), New Delhi, India

Correspondence Address:
Lt Col (Dr) Debashish Paul
Department of Anaesthesiology and Critical Care, Armed Forces Medical College, Pune, Maharashtra
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmms.jmms_11_20

Rights and Permissions

Background: The duration of analgesia in the brachial plexus block (BPB) with local anesthetics (LAs) only is not sufficient to avoid the requirement of analgesia for breakthrough pain. Dexmedetomidine (DEX) is an upcoming adjuvant with long-acting LA to reduce the requirement of analgesics in the postoperative period. However, there is no documented consensus about the dose of DEX in this regard. Aim: We compared two doses of DEX with LA in the BPB to find out the effectiveness of analgesia and other effects. Materials and Methods: All patients were separated into two groups, namely Group A (0.5 μg/kg DEX added to 20 mL of 0.25% bupivacaine) and Group B (1.0 μg/kg DEX added to 20 mL of 0.25% bupivacaine). Thirty patients in each group were analyzed. The sample size was estimated with a type I error of 0.05 and a power of the study as 80%. Statistical analysis was performed using SPSS (version 13.0) software. Rescue analgesia was decided as injection morphine (0.05–0.15 mg/kg) intramuscularly as indicated. Results: The mean time of onset of sensory analgesia (18.04 ± 3.195 vs. 12.20 ± 1.848 min) and motor blockade (23.7 ± 2.8 vs. 17.3 ± 1.7 min) were comparable (P < 0.05); however, the duration for the motor (668.0 ± 22.7 vs. 702.0 ± 111.6 min) and sensory blockade (734.8 ± 47.9 vs. 755.6 ± 126.8 min) and time to first demand of analgesics were insignificant. Conclusion: A dose of 1.0 μg/kg DEX has no added benefit when compared with a lower dose of 0.5 μg/kg DEX as an adjuvant to LA.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded23    
    Comments [Add]    

Recommend this journal