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The assessment of erectile dysfunction after radical prostatectomy using pudendal somatosensory evoked potential

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  • Se Yun Kwon
  • Jin-Mo Park

Abstract

Erectile dysfunction in patients who underwent radical prostatectomy was evaluated with pudendal somatosensory evoked potentials (PSEP) to measure and predict erectile dysfunction objectively. Fifty-seven patients who completed requirements were included in the study. Patients were divided into 2 groups (potency/non-potency). Erectile function recovery was defined as question 2 and 3 on the IIEF-5 questionnaire at 12 months after surgery. The two-channel PSEP test was performed at the day before RP and 3–6 months after RP. Twenty patients were assigned to the potency group and 37 to the non-potency group. Mean age was less in the potency group. Other clinical variables were similar in two groups. The non-potency group had prolonged lumbar and cortical latencies in postoperative PSEP, and the mean differences of latencies between pre- and postoperative PSEP in lumbar and cortical regions were also greater in the non-potency group. Logistic regression analysis showed that age, lumbar post-operative latency, cortical post-operative latency, and difference of latency in lumbar region were associated with non-potency; odds ratios were 1.292 (p = 0.018), 0.425 (p = 0.047), 1.637 (p

Suggested Citation

  • Se Yun Kwon & Jin-Mo Park, 2023. "The assessment of erectile dysfunction after radical prostatectomy using pudendal somatosensory evoked potential," PLOS ONE, Public Library of Science, vol. 18(11), pages 1-11, November.
    • Handle: RePEc:plo:pone00:0292847
    DOI: 10.1371/journal.pone.0292847
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