Abstract
Purpose To assess the efficacy and safety of the peribulbar block as practised by anaesthetists in a District General Hospital and also to assess the effect of using the ‘painless local’ subconjunctival injection on the pain of the peribulbar block.
Method Audit data collected from 1000 consecutive patients undergoing peribulbar blocks with 2% lignocaine were analysed. Efficacy was assessed by visual rating scores for operative pain, eye movement, intraocular pressure and reinjection rate, and safety by looking at complications. Comparison of pain of injection scores was used to assess the effect of the ‘painless local’ injection. Visual rating scores for pain were analysed using the Mann-Whitney U-test.
Results Akinesia was achieved in 79% of blocks and operative pain scores were very low (median = 0, IQR = 0). All complications recorded were minor and there were no sight-or life-threatening events. The ‘painless local’ injection given to 499 patients resulted in significantly lower visual rating scores for pain of injection (p<0.05).
Conclusion These data suggest that the peribulbar block is a safe and effective method of providing anaesthesia for eye surgery provided that it is taught methodically and practised by experienced staff. The ‘painless local’ injection reduces the pain experienced during administration of this block.
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Part of this work was presented at the British Ophthalmic Anaesthetists Society meeting, June 1999
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Budd, J., Hardwick, M., Barber, K. et al. A single-centre study of 1000 consecutive peribulbar blocks. Eye 15, 464–468 (2001). https://doi.org/10.1038/eye.2001.156
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DOI: https://doi.org/10.1038/eye.2001.156