0.125% 8 ml/h v.s. 0.25% 8 ml/h of levobupivacaine in continuous paravertebral block for postoperative analgesia in video-assisted thoracoscopic surgery: a randomized, controlled, double-blind study.

Research has shown that a higher dose of bupivacaine administered in continuous paravertebral block (CPVB) provides a greater analgesic effect after video-assisted thoracoscopic surgery (VATS). In this randomized, controlled, double-blind study, we hypothesized that 0.25% 8 ml/h of levobupivacaine administered in CPVB after VATS provides a greater analgesic effect than 0.125% 8 ml/h.