Mohammad Yasrab, Syed Ehtesham Haider Naqvi, Fariha Ahmed, Madiha Ahmed, Sumbal Rana, Arshad Khushdil.
Preventing Catheter Related Bladder Discomfort (CRBD) in male patients undergoing Lower Urinary tract surgery with Bilateral Pudendal Nerve Block:A Randomized Controlled Trial.
Pak Armed Forces Med J Jan ;72(2):389-93.

Objective: To compare the frequency and severity of post-operative CRBD in patients undergoing TURP and TURBT with spinal anaesthesia with pudendal nerve block against spinal anaesthesia alone. Study Design: A randomized controlled trial (Clinical trials.gov: NCT05022160) Place and Duration of Study: Armed Forces Institute of Urology (AFIU),, Rawalpindi, Pakistan, from Aug to Nov, 2021. Methodology: The trial comprised 250 patients scheduled to have a transurethral resection of the prostate (TURP) or a transurethral resection of a bladder tumour (TURBT) under spinal anaesthesia. They were split into two groups: study (group-P) and control (group-C). After surgery, the patients in the study-group were given a bilateral pudendal nerve block. At 3, 8, 12, and 24 hours following surgery, the frequency and severity of catheter-related bladder discomfort (CRBD) were documented. Results: CRBD frequencies were significantly lower in pudendal group at 3 hours 42 (33.8%) vs 72 (58.5%), p <0.001), 8 hours 81 (65.3%) vs 111 (90.2%), p<0.001 and 12 hours 53 (42.7%) vs 73 (59.3%), p=0.009 after the surgery. The postoperative pain score in pudendal group was lower at 3 hours (p<0.001), 8 hours (p <0.001), and 12 hours (p=0.02) but there was no statistically significant difference between the two groups at 24 hours (p=0.06). Conclusion: When used in conjunction with spinal anaesthesia, a pudendal nerve block reduces the frequency and severity of catheter-related bladder discomfort for up to 12 hours after surgery.

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