3435 Peribulbar anesthesia in complicated retinal detachment

M We have prospectively analqsed the feasibility and advantages of local anesthesia in surgical management of advanced proliferative vitreoretinopathy in retinal detachment (RD). M&Q& Peribulbar anesthesia (PBA) was used in 20 consecutive cases operated for RD. All the pateints requiered s&rat buckling, pars plana vitrectomy, complete membrane removal, endophotocoagulation and internal tamponade under PBA. Sedation was realised with OSmc&g fentanyl or 0.3mgkg propofol. Double injection technique was employed inferotemporally and superonasally in all cases except in high myopic patients where only one injection was performed. Anesthetic drugs injected contained amixture of lidocain 2% and bupivacain 0.5% associated with hyakxonidase 12.5ui/ml. J&q& Complete analgesia in 18 cases was suuticient to acheive all the procedures mentioned. In 2 cases in situ injection of lidocain 2% was performed to complete the analgesic &et during the surgery. Complete akin&a was obtained in 16 cases. Surgical procedures ranged from 90 to 130 minutes. Cooflusion PBA is a safe and effic,ent technique in retinal detachment surgery and seems appropriate in cases where general anesthesia is not indicated.