Dr Rajni Sharma, Dr Varsha Saini, Dr. Archana Tripathi


Background and Aim- Intravenous regional anaesthesia (IVRA) is technically, reliable, simple and safe method of providing anaesthesia for minor surgical procedures over the upper extremities. Various local anaesthetic agents like lignocaine, bupivacaine, mepivacaine and procaine have been used for IVRA. The purpose and aim of the present study was to assess the efficacy of 0.5µg/kg dexmedetomidine as an adjuvant to lignocaine during IVRA with regard to Onset & duration of sensory block and motor block ,Efficacy , duration of analgesia,Degree of sedation ,Incidence of tourniquet pain , Haemodynamic variables and patient acceptance .

Method-Total 60 patients of ASA grade I&II scheduled for elective surgery of upper limb, were randomized into two groups for IVRA .Group L Patients were received 0.9% normal saline plus 3mg/kg lignocaine (0.5%) diluted with normal saline upto total dose of 40 ml and Group LD Patients were received 0.5µg/kg dexmedetomidine plus 3mg/kg lignocaine (0.5%) diluted with normal saline up to total dose of 40 ml. All patient in two groups were assessed for sensory block, motor block, sedation and monitored for hemodynamics, intraoperative and postoperative analgesia using VAS score and side effect if any.

Results VAS Score was significant lower, when compared both groups, there was a significant shorter  sensory onset and longer recovery time observed in LD group and onset of motor block faster and regression of motor block was slower in LD group in IVRA. Sedartion Score more in group LD significantly and number of rescue analgesia given in postop was lower in group LD.

Conclusion- Dexmedetomidine addition to lignocaine in IVRA improved the quality of both sensory and motor block with good quality of analgesia. It enhanced the duration of postoperative analgesia and was not associated with haemodynamic instability or any other complications.


Lignocaine, Dexmedetomidine, IVRA, VAS score

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