Retrospective evaluation of effectiveness of continuous paravertebral block in patients undergoing thoracoscopic lung resection

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  • 胸腔鏡下肺切除術後疼痛管理における持続傍脊椎神経ブロックの有用性に関する検討

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We retrospectively assessed the utility of continuous paravertebral block in patients undergoing thoracoscopic lung resection. Among 92 consecutive patients, 32 received additional paravertebral block (PVB group) with 0.2% Ropivacaine hydrochloride hydrate, continuous at a rate of 3 ml/h for 3 days starting immediately after surgery. All patients received oral NSAIDS for baseline pain relief and either a rescue dose of Diclofenac sodium at 50 mg enterally or Pentazocine at 15 mg intravenously when necessary. Pain was assessed using a visual analogue scale, with 0 representing no pain and 100 for the worst pain possible. Intraoperative thoracoscopic catheterization was straightforward, and there were no complications associated with paravertebral block. The mean pain score within the first 2 days following surgery was significantly lower in the PVB group (28±16 vs. 43±18, p<0.01). The total doses of the abovementioned rescue analgesics were both lower in the PVB group. Continuous paravertebral block is a simple, safe, and effective method of postoperative analgesia in patients undergoing thoracoscopic lung resection.

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