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Pudendal nerve block prior to inflatable penile prosthesis implantation: decreased intra-operative narcotic requirements

Abstract

The opioid epidemic has proven to be a public health crisis over the past two decades and efforts to decrease opioid exposure are sorely needed. Our objective was to determine whether pudendal nerve block utilization in the immediate pre-operative setting decreases intra-operative opioid analgesic requirements in veteran patients undergoing a primary inflatable penile prosthesis implantation. We performed a retrospective cohort analysis of all patients undergoing penile prosthesis implantation between January 2017 and July 2020 at the Charlie Norwood Veterans Affairs Medical Center in Augusta, GA. Univariable and multivariable gamma regression analyses were performed to evaluate the association between pudendal nerve block utilization and intra-operative opioid analgesic requirements. The study cohort consisted of 110 patients, 35 (31.8%) of whom underwent a pudendal nerve block. Median intra-operative opioid analgesic requirements were significantly lower in the pudendal nerve block group (16.3 versus 25.8 morphine milliequivalents, p = 0.037). Receipt of the nerve block was associated with significantly lower intra-operative opioid analgesic requirements on multivariable (coefficient 0.84, p = 0.038) regression analysis. There was no significant difference in post-operative opioid analgesic requirements (p = 0.18). In conclusion, pre-operative pudendal nerve blocks decrease intra-operative opioid analgesic requirements in veteran patients undergoing a primary inflatable penile prosthesis implantation.

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Conception and design: RKS, MKT, ZK, SAK. Acquisition of data: NST, JO, MDO, KLF. Analysis and interpretation of data: RKS, NST, JO, MDO, KLF, MKT, ZK, SAK. Drafting paper: RKS. Critical revision of paper for important intellectual content: NST, JO, MDO, KLF, MKT, ZK, SAK. Final approval of paper: RKS, NST, JO, MDO, KLF, MKT, ZK, SAK.

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Correspondence to Rashid K. Sayyid.

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Sayyid, R.K., Taylor, N.S., Owens-Walton, J. et al. Pudendal nerve block prior to inflatable penile prosthesis implantation: decreased intra-operative narcotic requirements. Int J Impot Res (2021). https://doi.org/10.1038/s41443-021-00495-8

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