Comparison of the Efficacy Between Ultrasound-Guided Paravertebral Block and Erector Spinae Block for Postoperative Analgesia in Percutaneous Nephrolithotomy Using Levobupivacaine: A Prospective and Randomized Study.

A p-value of <0.05 was considered statistically significant, and a value less than 0.001 was highly significant.

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Discussion Recent advances in regional analgesic techniques have been an increasing trend over recent years for substantial pain relief in numerous surgical procedures.

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