{"title":"The value of electrophysiological testing in the adjunctive diagnosis of premature ejaculation.","authors":"Zhimin Chen, Zhenming Zheng, Xiansheng Zhang","doi":"10.1093/jsxmed/qdae109","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Although the four-class system of classifying premature ejaculation (PE), including lifelong PE (LPE), acquired PE (APE), natural variable PE (NPE), and subjective PE (SPE), has existed for many years, objective classification standards in clinical practice are lacking.</p><p><strong>Aim: </strong>In this study, we sought to investigate the use of electrophysiologic parameters to assist in the classification of PE, thereby guiding subsequent treatment.</p><p><strong>Methods: </strong>From July 2023 to April 2024, 187 study participants were enrolled. For each participant, the biological sensory threshold (BST), penile sympathetic skin response (PSSR), and dorsal nerve somatosensory evoked potential (DNSEP) were recorded.</p><p><strong>Outcomes: </strong>The differences in the PSSR latencies (PL) and DNSEP latencies (DL), the PSSR amplitudes (PA) and DNSEP amplitudes (DA), and the BST were compared among the LPE, APE, SPE, NPE, and healthy control (HC) groups.</p><p><strong>Results: </strong>The participants were divided into the LPE (46 cases), APE (53 cases), SPE (20 cases), NPE (33 cases), and HC (35 cases) groups. The results showed shorter latencies of the PSSR (PL) and DNSEP (DL), larger amplitudes of the PSSR (PA) and DNSEP (DL), and smaller BST in the LPE group than in the NPE, SPE, APE, and HC groups (P < .05). In addition, the larger PA and shorter PL in the APE group than in the NPE and HC groups (P < .05). However, the electrophysiological parameters were not significantly different among the NPE, SPE, and HC groups (P > .05). In addition, PL <1262.0 milliseconds and DL <41.85 milliseconds were strong predictors of LPE, 1262.0 milliseconds < PL <1430.0 milliseconds was a predictor of APE, and PL >1430.0 milliseconds suggested possible SPE or NPE.</p><p><strong>Clinical implications: </strong>Analysis of the electrophysiological parameters of PE may be helpful for classification and treatment.</p><p><strong>Strengths and limitations: </strong>No previous study, to our knowledge, has analyzed the electrophysiological parameters of the four types of PE. The main limitation is the small sample size.</p><p><strong>Conclusion: </strong>APE is characterized by increased sympathetic excitability, whereas LPE is characterized by increased penile sensitivity and increased sympathetic excitability. However, penile sensitivity and sympathetic excitability in SPE and NPE patients may not differ significantly from normal.</p>","PeriodicalId":51100,"journal":{"name":"Journal of Sexual Medicine","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sexual Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1093/jsxmed/qdae109","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Although the four-class system of classifying premature ejaculation (PE), including lifelong PE (LPE), acquired PE (APE), natural variable PE (NPE), and subjective PE (SPE), has existed for many years, objective classification standards in clinical practice are lacking.
Aim: In this study, we sought to investigate the use of electrophysiologic parameters to assist in the classification of PE, thereby guiding subsequent treatment.
Methods: From July 2023 to April 2024, 187 study participants were enrolled. For each participant, the biological sensory threshold (BST), penile sympathetic skin response (PSSR), and dorsal nerve somatosensory evoked potential (DNSEP) were recorded.
Outcomes: The differences in the PSSR latencies (PL) and DNSEP latencies (DL), the PSSR amplitudes (PA) and DNSEP amplitudes (DA), and the BST were compared among the LPE, APE, SPE, NPE, and healthy control (HC) groups.
Results: The participants were divided into the LPE (46 cases), APE (53 cases), SPE (20 cases), NPE (33 cases), and HC (35 cases) groups. The results showed shorter latencies of the PSSR (PL) and DNSEP (DL), larger amplitudes of the PSSR (PA) and DNSEP (DL), and smaller BST in the LPE group than in the NPE, SPE, APE, and HC groups (P < .05). In addition, the larger PA and shorter PL in the APE group than in the NPE and HC groups (P < .05). However, the electrophysiological parameters were not significantly different among the NPE, SPE, and HC groups (P > .05). In addition, PL <1262.0 milliseconds and DL <41.85 milliseconds were strong predictors of LPE, 1262.0 milliseconds < PL <1430.0 milliseconds was a predictor of APE, and PL >1430.0 milliseconds suggested possible SPE or NPE.
Clinical implications: Analysis of the electrophysiological parameters of PE may be helpful for classification and treatment.
Strengths and limitations: No previous study, to our knowledge, has analyzed the electrophysiological parameters of the four types of PE. The main limitation is the small sample size.
Conclusion: APE is characterized by increased sympathetic excitability, whereas LPE is characterized by increased penile sensitivity and increased sympathetic excitability. However, penile sensitivity and sympathetic excitability in SPE and NPE patients may not differ significantly from normal.
期刊介绍:
The Journal of Sexual Medicine publishes multidisciplinary basic science and clinical research to define and understand the scientific basis of male, female, and couples sexual function and dysfunction. As an official journal of the International Society for Sexual Medicine and the International Society for the Study of Women''s Sexual Health, it provides healthcare professionals in sexual medicine with essential educational content and promotes the exchange of scientific information generated from experimental and clinical research.
The Journal of Sexual Medicine includes basic science and clinical research studies in the psychologic and biologic aspects of male, female, and couples sexual function and dysfunction, and highlights new observations and research, results with innovative treatments and all other topics relevant to clinical sexual medicine.
The objective of The Journal of Sexual Medicine is to serve as an interdisciplinary forum to integrate the exchange among disciplines concerned with the whole field of human sexuality. The journal accomplishes this objective by publishing original articles, as well as other scientific and educational documents that support the mission of the International Society for Sexual Medicine.