UNILATERAL EPIDURAL ANESTHESIA IN ARTHROSCOPIC SURGERY
O. Turan, D. Ornek, F. Donmez, D. Kalaycı, B. Dikmen
Ankara Numune Education and Training Hospital , Ankara , Turkey
Background: we aimed to investigate the effect of local anaesthetic application rate on unilateral block characteristics, hemodynamic parameters and discharge criteria in patients undergoing knee arthroscopy with unilateral epidural anesthesia.
Methods: After ethical committee approval and written informed consents were obtained, 60 ASA 1-2 status patients were included in this prospective, double blind and randomised study. Standart monitorization was applied. While patients were being in lateral decubitis position on which operation side was on the bottom, 18 G epidural needle which its tip towards to side of the operation and with 5-10 degree angle from midline, epidural space was found and the catheter was placed in to L2-3 interval. levobupivacain 5 % was applied via catheter in Group F (n:30) in 1 minute and in Group S (n:30) in 3 minutes.
Results: Unilateral epidural block was successful in 16 % of patients in Group F and 70.3% in Group S (p< 0.001).Sensorial and motor block characteristics of the operation and non-operation sides were compared; in operation sides, they were similar but in non-operation sides of group S maximal sensorial block time was shorter and two segments regretion time was longer (p< 0.05). While sensorial block onset time was shorter and maximal motor block level higher in operation sides, maximal sensorial block level of non-opration sides was high. walk-out time was longer in group F (p< 0.05).
Conclusions: slow application of local anaesthetic in unilateral epidural anesthesia is more effective and intentional unilateral epidural anesthesia with slow injection may be an alternative anaesthetic method.
Author Keywords: UNILATERAL ,EPIDURAL ANESTHESİA, SURGERY
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