Comparison of the analgesic efficacy of transversus abdominis plane block and posterior approach quadratus lumborum block after open radical retropubic prostatectomy: a randomized controlled trial

Abstract

Abstract Backgroundː Open radical prostatectomy has been found to be related to moderate pain in the early postoperative period. However, postoperative pain, which is not controlled by surgery, can prolong the length of hospital stay. The transversus abdominis plane block technique has been shown to be a safe and effective postoperative analgesic method for urological surgeries. Moreover, it has been reported that a posterior approach involving a Quadratus lumborum block can extend more easily into the thoracic paravertebral space or thoracolumbar plane and provide analgesia from T7 to L1. Methodsː A total of 62 patients with a mean age of 63.2 ± 4 years and a mean body mass index of 24.0 ± 1.6 kg/m² were included in our study. After surgery, the patients were divided into two groups: the first group (Transversus Abdominis Plane) and the second group (Quadratus Lumborum Block) before anaesthesia was terminated. Resultsː The time to postoperative analgesic need, opioid use, opioid dose, and patient satisfaction score were similar for the TAP and QLB block groups. A total of eighteen (29%) patients in both groups needed opioids, for a mean dose of 100 mg. Conclusionsː In conclusion, there was a significant relationship between the opioid dose and the two groups.