B129 Isolated interscalene catheter vs combined anaesthesia for total shoulder replacement in high risk patients

Abstract

Methods This study is a double-blinded, randomized, controlled, prospective study, submitted to clinicaltrials.gov (NCT04879004). 30 patients scheduled for OC and LC were randomized into 4 equal groups. If the patient was randomized in Group R L or R O , Ropivacaine 0.375% (20 ml) was infused at each side 30 minutes before induction of GA and 0.2% (20 ml) 12, 24, 36 and 48 hours after surgery. If the patient was randomized in Group C L or C O , N/S 0.9% (20 ml) was infused in the same manner. We recorded QoR score on the 3d postoperative day, satisfaction score and discharge time of patients. Statistical analysis was performed with Jamo-viVersion1.6.18.0, using MannWhitneyU test. Results All groups were similar. No statistically significant differences were found between groups R L and C L regarding QoR, satisfaction score and discharge time of the patients (p=0.061, p=0.061, p=0.704 respectively). Regarding OC, QoR score and satisfaction score of the patients were significantly higher in Group R O when compared to C O (p=0.002 and p=0.042 respectively). There was found no statistically significant difference between these groups regarding discharge time of the patients (p=0.122). Conclusions In this study, we confirmed that ESPB is an effective method which contributes to the improvement of QoR and satisfaction score of patients undergoing OC.