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Comparative Study of Lignocaine, Lignocaine with Dexmedetomidine and Lignocaine with Fentanyl for Biers Block in Upper Extremity Surgeries

Chandana M H, Assistant Professor, Department of Anesthesia, Vijaynagar Institute of Medical Sciences, Ballari, Karnataka 583104, India. , P G Raghavendra1 , Chandana M H2

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Indian Journal of Anesthesia and Analgesia 8(3):p 327-332, May-June 2021. | DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.8321.47

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P G Raghavendra, Chandana M H et al./Comparative Study of Lignocaine, Lignocaine with Dexmedetomidine and Lignocaine with Fentanyl for Biers Block in Upper Extremity Surgeries/Indian J Anesth Analg. 2021; 8(3): 327-332.
 

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Abstract

Background: Dexmedetomidine and Fentanyl have been used effectively along with local anaesthetics to shorten the onset, prolong the duration of the block, and to increase postoperative analgesia. We compared fentanyl and dexmedetomidine as adjuvants to lignocaine for Biers Block for upper extremity surgeries. Materials and Methods: After Institutional approval and informed consent, 90 ASA 1 and 2 volunteers were taken into the study. 30 patients were randomly allocated each in Group A to receive Biers block for upper extremity with 3 mg/kg of 0.5% lignocaine; in Group B, with 3 mg/kg of 0.5 % lignocaine with 0.5 mcg/kg dexmedetomidine and Group C received Biers block of upper extremity with 3 mg/kg of 0.5% lignocaine with 1mcg/kg Fentanyl. The onset of sensory, complete motor block and tourniquet pain were observed and any symptoms after cuff deflation were recorded. Usual haemodynamic monitoring used. Statistical Analysis: ANOVA (Analysis of Variance) and Chi-square tests were used for data analyses; p value of <0.05 considered significant. Results: Groups A, B and C were comparable in demographic and surgical parameters. The speed of onset of sensory and motor block was higher in Group C (Fentanyl) (p <0.0001). The tourniquet pain occurred significantly later in Group B (Dexmedetomidine) (p<0.0001). There were few incidences of bradycardia in Group B. Conclusion: In conclusion, present study suggested that dexmedetomidine and fentanyl will enhance the quality of anaesthesia, providing a shorter onset time of sensory and motor block, delayed first analgesia requirement.

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P G Raghavendra, Chandana M H et al./Comparative Study of Lignocaine, Lignocaine with Dexmedetomidine and Lignocaine with Fentanyl for Biers Block in Upper Extremity Surgeries/Indian J Anesth Analg. 2021; 8(3): 327-332.
 

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DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.8321.47

Keywords

Biers block; Local Anesthetic: Lignocaine Hydrochloride; a-2 Agonist: Dexmedetomidine; Fentanyl.

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