British journal of anaesthesia
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Review Meta Analysis
Regional anaesthesia to prevent chronic pain after surgery: a Cochrane systematic review and meta-analysis.
Epidural anesthesia may reduce post-thoracotomy chronic pain (OR 0.33) and paravertebral block reduce that following breast ca surgery (OR 0.37).
pearl -
Randomized Controlled Trial Comparative Study
Postoperative pain relief after total hip arthroplasty: a randomized, double-blind comparison between intrathecal morphine and local infiltration analgesia.