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pH-adjusted periocular anaesthesia for primary vitreoretinal surgery
1Vision Research Foundation, Chennai, India. MDSAAA35@giasmd01.vsnl.net.in
Purpose:
To evaluate the efficacy of pH-adjusted bupivacaine in conjunction with medial orbital periconal block (periocular anaesthesia).
Methods:
Sixty consecutive patients undergoing primary vitreoretinal surgery were enrolled prospectively.
Results:
Adequate anaesthesia and akinesia with no intraoperative supplementation was achieved in 53 eyes (88.3%). Factors influencing intraoperative supplementation were combined vitrectomy with scleral buckling (p = 0.005) and duration of surgery of more than 2 hours (p = 0.001). No ocular or systemic complication resulted.
Conclusion:
pH-adjusted periocular anaesthesia is safe and effective in patients undergoing primary vitreoretinal surgery.