P. Ruusuvaara et al., COMPARISON OF ETIDOCAINE AND BUPIVACAINE PLUS LIDOCAINE IN RETROBULBAR ANESTHESIA, Acta ophthalmologica Scandinavica, 73(6), 1995, pp. 563-566
Etidocaine (15 mg/ml) was compared with bupivacaine (5 mg/ml) combined
with lidocaine (10 mg/ml) in retrobulbar anaesthesia, One hundred and
twelve patients were randomised into two groups. Supplemental anaesth
esia was needed in 41% of cases of the etidocaine group and 32% of the
bupivacaine-lidocaine group. Akinesia was evaluated by the surgeon bo
th pre- and postoperatively and was found to be good or complete in mo
re than 95% of both groups. Recovery from the motor and sensory block
was investigated three times during the first 24 postoperative hours,
The motor block of the orbicular muscle disappeared earlier than that
of the globe. Akinesia lasted significantly longer in the etidocaine g
roup than in the bupivacaine-lidocaine group: after 14 h 69% vs 100%,
respectively, of the eyes showed normal movements, Sensation in the co
rnea was also regained more rapidly in patients treated with the mixtu
re.