Abstract:
Local anesthetic techniques are increasingly popular forophthalmic surgery. Levobupivacaine, the pure S (-) enantiomer of bupivacaine, hasstrongly emerged as a safer alternative for regional anesthesia than its racemic sibling,bupivacaine. The present Study was performed with an aim to compare betweenevobupivacaine 0.5% or bupivacaine 0.5% both in a mixture with lignocaine 2% forperibulbar block in cataract surgery.Methodology: In this prospective double blind study, all the patients were randomlydivided in two groups, Group B patients received inj bupivacaine 0.5% (5 ml) + lignocaine2% (5 ml) + hyaluronidase (5 IU/ml), and Group L patients received inj levobupivacaine0.5% (5 ml) + lignocaine 2% (5 ml) + hyaluronidase (5 IU/ml) for peribulbar block byakinetic technique to provide anesthesia for cataract surgery. The study was conductedor the period of one year. After routine pre anesthetic assessment, a peripheralntravenous (i.v.) line was inserted in 6 hours fasted patient and standard monitoringwas conducted and recorded, including heart rate (HR), noninvasive arterial bloodressure (BP), electrocardiogram (5 leads), and peripheral oxygen saturation (SpO2). Motor block was evaluated by assessment of akinesia in four quadrants using general akinesia scoring system. Results: There were no significant difference between groups with respect to the akinesia score (p = 0.24) at 2, 5 and 10 min, the number of supplementary injections (p = 0.83) and initial and total required volume of local anesthetics (p = 0.78 and p = 0.79). There was no significant difference between the groups regarding surgeon and patient satisfaction (p > 0.52). Similarly the verbal rating scales assessed at three different occasions were not significantly different between the groups (p > 0.05). The need for additional intra-operative topical anesthetic was similar between the groups (p = 0.64). Conclusion: Peribulbar block with a mixture of levobupivacaine 0.5% and lignocaine 2% or bupivacaine 0.5% and lignocaine 2% provides similar block quality and efficacy
Page(s):
192-197
DOI:
DOI not available
Published:
Journal: Anaesthesia, Pain and Intensive Care, Volume: 23, Issue: 2, Year: 2019
Keywords:
Levobupivacaine
,
Elderly
,
Cataract surgery
,
Peribulbar block
,
Akinesia