Erector spinae plane block (ESPB) is a relatively new plane block that was first described by Forero et al. in 2016, to manage persistent neuropathic pain following malunited rib fracture and persistent post-thoracotomy neuropathic pain.It's a relatively simple, ultrasound guided block in which the local anesthetic drugs are injected in the plane between the erector spinae muscle and the vertebral transverse process.This allows the injected local anesthetics to block the ventral and dorsal rami of the spinal nerves in the paravertebral area. The literature reveals successful case reports denoting the use of ESPB for pain control in cases of acute kidney transplant,percutaneous nephrolithomy, abdominal surgeries including laparoscopic and open nephrectomy, and nephrectomy in the pediatric population. The aim of this prospective randomized controlled study is to investigate the efficacy of ESPB for pain control in adult patients undergoing open renal surgery through a flank incision with respect to pain scores, postoperative analgesia consumption and patient satisfaction.
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Time to first rescue analgesia
Timeframe: 30-45 minutes.