Postoperative Analgesia in a Prolonged Continuous Interscalene Block Versus Single-Shot Block in Outpatient Arthroscopic Rotator Cuff Repair: A Prospective Randomized Study.
Arthroscopy. 2016 Apr 20;
Authors: Malik T, Mass D, Cohn S
Abstract
PURPOSE: To compare the analgesic efficacy of 3-day continuous interscalene brachial plexus block versus a single-shot block for arthroscopic rotator cuff repair.
METHODS: Eighty-five patients scheduled for arthroscopic rotator cuff repair were randomly assigned to either the single-shot group (SSG) or continuous interscalene brachial block group (CG). Patients in the SSG received 2.5 mg/kg of 0.5% bupivacaine up to 25 mL; the CG received the same dose as a loading dose via catheter followed by an infusion of 0.125% bupivacaine at 5 mL/h and a patient-controlled bolus of 5 mL hourly for 72 hours. Follow-up after discharge was with telephone calls over the next 3 days. Pain was measured on a visual analog scale. Also measured were sleep disturbance, number of opioid doses taken, adverse effects, and level of patient satisfaction.
RESULTS: The median rest pain scores on the 3 days of follow-up measured on a scale of 0 to 10 (with 10 equal to greatest pain) were 0, 0, and 3 in the CG compared with 4, 4, and 3 in the SSG (P < .001) for days 1, 2, and 3, respectively. The median maximum scores were 2, 2, and 4 in the CG compared with 8, 7, and 6 in the SSG (P < .001) for the same time period.
CONCLUSION: A 3-day continuous interscalene brachial plexus block provides better analgesia than a single-shot block. Sleep patterns were better, and less opioid was needed after arthroscopic rotator cuff repair in patients given a continuous plexus block.
LEVEL OF EVIDENCE: Level I, prospective randomized study.
PMID: 27107906 [PubMed - as supplied by publisher]
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