British Journal of Anaesthesia, Vol 84, Issue 1 89-91, Copyright © 2000 by Oxford University Press
G Nicholson, B Sutton and GM Hall
We have compared the efficacy of 1% ropivacaine with a mixture of 0.75%
bupivacaine and 2% lidocaine for peribulbar anaesthesia in cataract
surgery. We used the time to adequate block for surgery, and ocular and
eyelid movement scores at 8 min after block as clinical end-points. Ninety
patients were allocated randomly to receive 7-10 ml of a mixture of equal
parts of 0.75% bupivacaine and 2% lidocaine or an equal volume of 1%
ropivacaine alone. Hyaluronidase 15 iu ml-1 was added to both solutions.
There were no differences between groups in clinical end- points. Median
time at which the block was adequate to start surgery was 8 min
(interquartile range 4-10 min) in each group. Median eyelid movement scores
were similar in both groups, but the bupivacaine and lidocaine mixture
produced a significantly decreased ocular movement score at 2, 4 and 6 min
(P < 0.05). There was no difference between groups in the incidence of
minor complications. Based on clinical end- points, time to adequate block
for surgery and median ocular and eyelid movement scores at 8 min, 1%
ropivacaine as the sole agent for peribulbar anaesthesia was comparable
with a mixture of 0.75% bupivacaine and 2% lidocaine.
ARTICLES
Comparison of 1% ropivacaine with 0.75% bupivacaine and 2% lidocaine for peribulbar anaesthesia
Department of Anaesthesia and Intensive Care Medicine, St George's Hospital Medical School, London, UK.
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C. Mantovani, A. E. Bryant, and G. Nicholson Efficacy of varying concentrations of hyaluronidase in peribulbar anaesthesia Br. J. Anaesth., June 1, 2001; 86(6): 876 - 878. [Abstract] [Full Text] [PDF] |
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