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Clinical Investigations

Intra-arterial regional anaesthesia (iara) - a peripheral experience


S Parthasarathy ,

Chief anaesthesiologist, Govt. Dist. Headquarters hospital, Kumbakonam -612001-Tamilnadu, IN
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M Ravishankar

Prof. and Head, Dept. of anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Pondicherry, IN
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Intravenous regional anaesthesia is a simple, safe technique of anaesthesia of extremities for short procedures. The major fear with the use of the technique is local anaesthetic toxicity associated with high volumes of local anaesthetic used. Hence we decided to use reduced volume of local anaesthetic in the peripheral artery to produce satisfactory anaesthesia. A total of twelve patients scheduled to undergo short procedures of upper limb were taken for this study. After exsanguination and tourniquet application on the arm 1.5mg/kg of preservative free lignocaine as 0.5% solution was injected into the cannulated radial artery. The onset of analgesia was 89.92 ± 17.54 seconds. The anaesthesia was satisfactory in all cases except in two patients where there was a minimal discomfort with bony manipulation, which settled with 20 mg of iv pentazocine. The mean duration of surgery was 34.54±4.5 minutes. The mean volume of lignocaine used was only 15.58± 0.95 ml. No significant side effects were noted. We conclude that intra-arterial regional anaesthesia is a useful procedure in patients where there is a fear about local anaesthetic toxicity and the problem of difficult venous access.

Key words: Intra-arterial regional anaesthesia, lignocaine

DOI: 10.4038/slja.v18i1.1556

Sri Lankan Journal of Anaesthesiology 18(1): 20-22 (2010)

How to Cite: Parthasarathy, S. and Ravishankar, M., 2010. Intra-arterial regional anaesthesia (iara) - a peripheral experience. Sri Lankan Journal of Anaesthesiology, 18(1), pp.20–22. DOI:
Published on 02 Feb 2010.
Peer Reviewed


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