Evidence map›Paper›PMID 38586249›Full record

ArticleSexual medicine2024

The effect of local anesthetic on the hypersensitive and nonsensitive areas of the penis is different in primary premature ejaculation: a pilot study.

Lei Zheng, Le-Tian Wei, Song-Chunli, Wen-Rong Liu, Hui Jiang, Tao Jiang

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Article in Sexual medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

What it found

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Lei ZhengDepartment of Andrology and Sexual Medicine, The Second Hospital of Dalian Medical University, Dalian 116023, China.
Le-Tian WeiDepartment of Andrology and Sexual Medicine, The Second Hospital of Dalian Medical University, Dalian 116023, China.
Song-ChunliDepartment of Neuroelectrophysiology, The First Hospital of Dalian Medical University, Dalian 116000, China.
Wen-Rong LiuDepartment of Andrology and Sexual Medicine, The Second Hospital of Dalian Medical University, Dalian 116023, China.
Hui JiangDepartment of Andrology, Peking University First Hospital, Beijing 100191, China.
Tao JiangDepartment of Andrology and Sexual Medicine, The Second Hospital of Dalian Medical University, Dalian 116023, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Penile hypersensitivity is not the whole penis, but rather only a part of the penis. Though local anesthetic can prolong intravaginal ejaculation latency time by reducing penile hypersensitivity, the effect on the hypersensitive and nonsensitive areas of penis is still unclear. Aim: The study aimed to explore whether the effect of local anesthetic on the hypersensitive and nonsensitive areas of the penis is different in premature ejaculation. Methods: Penile neurophysiological tests were performed on 290 patients with primary premature ejaculation. The sensory threshold, latency, and amplitude were recorded before and after the topical application of a local anesthetic (lidocaine cream) on the penis. Outcomes: Local anesthetics increased the sensory thresholds of hypersensitive and nonsensitive areas of the penis without difference but only prolonged the latency of the hypersensitive areas. Results: According to the neurophysiological results, 149 of 290 patients with primary premature ejaculation had normal penile sensitivity and 141 had penile hypersensitivity. While penile hypersensitivity does not necessarily mean that the whole penis is hypersensitive, and may be that only a part of the penis is hypersensitive, and we examined the following hypersensitivities: glans hypersensitivity only (14 cases), shaft hypersensitivity only (77 cases), and whole penis hypersensitivity (50 cases). Local anesthetics (lidocaine cream) increased the sensory thresholds of hypersensitive and nonsensitive areas of the penis without difference ( Clinical Implications: The present discovery implies that it is possible to improve ejaculation by applying local anesthetics externally to the hypersensitive areas of the penis to reduce the afferent local sensory signals, and improve intravaginal ejaculation latency time through accurately decreasing penile sensibility. Strengths & Limitations: This is the first large-sample study to explore the difference of local anesthetics' effects on the hypersensitive and nonsensitive areas of the penis by means of neurophysiological methods in premature ejaculation. Our study exclusively examines alterations in penile evoked potential following electrical stimulation, which may not entirely encompass shifts in penile receptivity during sexual activity. Conclusion: The effects of local anesthetics on the same penis varied with penile sensitivity, and can only prolong the latency of hypersensitive area of the penis. The effect of local anesthetic on the hypersensitive and nonsensitive areas of the penis is different in premature ejaculation.

Indexed as

local anestheticneurophysiological testspenissensitivity

Identifiers

PMID38586249
PMCPMC10997408

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