OBJECTIVE: Shift work and Shift Work Sleep Disorder (SWSD) are known to affect the secretion of several neurotransmitters and hormones associated with premature ejaculation (PE). However, their specific influence on the regulation of male ejaculation remains unclear. This study explores the relationship between shift work, SWSD, and PE.
METHODS: From April to October 2023, a cross-sectional survey was conducted across five regions of China to explore the work schedules, sleep quality, and sexual function of male workers. Participants\' sleep quality was evaluated using a validated SWSD questionnaire, and their erectile function and ejaculatory control were assessed with the International Inventory of Erectile Function (IIEF-5) scores and Premature Ejaculation Diagnostic Tool (PEDT) scores, respectively. Univariate and multivariate linear regression analyses were employed to identify risk factors associated with PE. Confounders were controlled using multiple regression models, and clinical prediction models were developed to predict PE onset and assess the contribution of risk factors.
RESULTS: The study included 1239 eligible participants, comprising 840 non-shift workers and 399 shift workers (148 with SWSD and 251 without SWSD). Compared to non-shift working males, those involved in shift work (β 1.58, 95% CI 0.75 - 2.42, p < 0.001) and those suffering from SWSD (β 2.86, 95% CI 1.86 - 3.85, p < 0.001) they had significantly higher PEDT scores. Additionally, we identified daily sleep of less than six hours, depression, anxiety, diabetes, hyperlipidemia, frequent alcohol consumption (more than twice a week), and erectile dysfunction as risk factors for PE. The predictive model for PE demonstrated commendable efficacy.
CONCLUSIONS: Both shift work and SWSD significantly increase the risk of premature ejaculation, with the risk magnifying in tandem with the duration of shift work. This study reveals the potential impact of shift work and SWSD on PE and provides new theoretical foundations for the risk assessment and prevention of this condition.

BACKGROUND: Although men with premature ejaculation (PE) always show more negative emotions, including embarrassment, guilt and worry, this may be related to the stigma of PE. To investigated stigma and its associations with self-confidence and sexual relations in 4 PE syndromes, a survey was conducted in our hospital from December 2018 to December 2019 among 350 men with self-reported PE and 252 men without self-reported PE. The stigma, self-confidence and sexual relations were assessed by the Social Impact Scale (SIS) and Self-Esteem and Relationship questionnaire (SEAR), respectively. Ejaculation control, sexual life satisfaction and distress caused by PE were evaluated by the Index of PE.
RESULTS: Men with self-reported PE had higher internalized shame and social isolation scores and lower SEAR scores than control subjects. The highest score of internalized shame and social isolation and the lowest score of SEAR appeared in men with lifelong PE (LPE). After age adjustment, the positive relationships were stronger between distress about PE and internalized shame. Whereas, the stronger negative associations were found between social isolation and sexual satisfaction. The strongest association was observed between social isolation and sexual relationship. Therefore, the stigma associated with PE adversely affects the self-confidence, self-esteem, and sexual relationships of men with PE.
CONCLUSIONS: Men with PE, especially LPE, have a high level of stigma and disharmonious sexual relations, and often lack self-confidence and self-esteem, which have a certain negative impact on their physical and mental health and life. These will be the key issues to be considered when we formulate a personalized treatment plan for PE.
RéSUMé: CONTEXTE: Bien que les hommes atteints d’éjaculation précoce (EP) montrent plus d’émotions négatives toujours, notamment de l’embarras, de la culpabilité et de l’inquiétude, cela peut être lié à la stigmatisation de l’EP. Afin d’étudier la stigmatisation et ses associations avec la confiance en soi et les relations sexuelles dans 4 syndromes d’EP, une enquête a été menée dans notre hôpital de décembre 2018 à décembre 2019 auprès de 350 hommes atteints d’EP autodéclarée et de 252 hommes sans EP autodéclarée. La stigmatisation, la confiance en soi et les relations sexuelles ont été évaluées respectivement à l’aide de l’échelle d’impact social (SIS) et du questionnaire sur l’estime de soi et les relations (SEAR). Le contrôle de l’éjaculation, la satisfaction de la vie sexuelle et la détresse causée par l’EP ont été évalués par l’indice d’EP. RéSULTATS: Les hommes ayant une EP autodéclarée avaient des scores de honte intériorisée et d’isolement social plus élevés, et des scores SEAR inférieurs, à ceux des sujets témoins. Le score le plus élevé de honte intériorisée et d’isolement social, et le score le plus bas de SEAR, sont apparus chez les hommes atteints d’EP à vie (EPL). Après ajustement sur l’âge, les relations positives étaient plus fortes entre la détresse due à l’EP et la honte intériorisée. Les associations négatives les plus fortes ont été trouvées entre l’isolement social et la satisfaction sexuelle. Par conséquent, la stigmatisation associée à l’EP affecte négativement la confiance en soi, l’estime de soi et les relations sexuelles des hommes atteints d’EP. CONCLUSION: Les hommes atteints d’EP, en particulier ceux atteints d’EPL, ont un niveau élevé de stigmatisation et de relations sexuelles disharmonieuses, et ils manquent souvent de confiance en soi et d’estime de soi; ce qui a un impact négatif certain sur leur santé physique et mentale, et sur leur vie. Ce seront les questions clés à prendre en compte lorsque nous formulerons un plan de traitement personnalisé pour l’EP.

We aimed to establish the prevalence of atypical masturbation in the general population and explore the association between atypical masturbation and male sexual dysfunction in heterosexual males. Atypical masturbation refers to stimulation significantly distinct from that encountered during partnered sexual activity. We posted questionnaires that contained the abridged International Index of Erectile Function (IIEF-6) and the premature ejaculation diagnostic tool on social media in China. We collected 2743 valid questionnaires from December 9, 2020, to April 18, 2021. We found that the prevalence of atypical masturbation in the general population was 10.97%. Men with atypical masturbation had lower IIEF-6 scores and higher rates of erectile dysfunction (ED) than men with typical masturbation. The prevalence of premature ejaculation and estimated intravaginal ejaculatory latency time were not significantly different among men with different patterns of masturbation. Our study demonstrated that atypical masturbation is associated with ED, and a clinician dealing with sexual issues should inquire more fully about masturbation patterns than has been done to date.

BACKGROUND: Premature ejaculation (PE), a common male sexual dysfunction, often accompanies by abnormal psychological factors, such as depression. Recent neuroimaging studies have revealed structural and functional brain abnormalities in PE patients. However, there is limited neurological evidence supporting the comorbidity of PE and depression. This study aimed to explore the topological changes of the functional brain networks of PE patients with depression.
METHODS: Resting-state functional magnetic resonance imaging (rs-fMRI) data were acquired from 60 PE patients (30 with depression and 30 without depression) and 29 healthy controls (HCs). Functional brain networks were constructed for all participants based on rs-fMRI data. The nodal parameters including nodal centrality and efficiency were calculated by the method of graph theory analysis and then compared between groups. In addition, the results were corrected for multiple comparisons by family-wise error (FWE) (p < .05).
RESULTS: PE patients with depression had increased degree centrality and global efficiency in the right pallidum, as well as increased degree centrality in the right thalamus when compared with HCs. PE patients without depression showed increased degree centrality in the right pallidum and thalamus, as well as increased global efficiency in the right precuneus, pallidum, and thalamus when compared with HCs. PE patients with depression demonstrated decreased degree centrality in the right pallidum and thalamus, as well as decreased global efficiency in the right precuneus, pallidum, and thalamus when compared to those without depression. All the brain regions above survived the FWE correction.
CONCLUSIONS: The results suggested that increased and decreased functional connectivity, as well as the capability of global integration of information in the brain, might be related to the occurrence of PE and the comorbidity depression in PE patients, respectively. These findings provided new insights into the understanding of the pathological mechanisms underlying PE and those with depression.

暂无摘要。

Sexual dysfunction is common in males with chronic kidney disease (CKD), but yet the prevalence and specific relationship between CKD and sexual dysfunction, especially premature ejaculation (PE), remain to be investigated in China; This study aims to examine the prevalence and association between CKD and sexual dysfunction in male patients in China; In this cross-sectional, non-interventional, observational study conducted at a single center. 72 male patients with CKD were enrolled. Data collection included socio-demographic information, assessments via the 5-item version of the International Index of Erectile Function (IIEF-5), the Chinese version of the Premature Ejaculation Diagnostic Tool, the Patient Health Quentionnnaire-9 and the General Anxiety Disorder-7. Data analysis was performed using R version 3.5.2 and SPSS software version 25.0; Among the 72 CKD patients, 56.9% experienced erectile dysfunction and 29.2% had PE. Various factors including estimated Glomerular Filtration Rate, Albumin-to-Creatinine Ratio, psychological aspects, medication use were found to be associated with sexual dysfunction in these CKD patients; Sexual dysfunction is prevalent in males with CKD and is, influenced by multiple factors. It is important for clinicians to focus on sexual dysfunction in this patient group and further investigate its underlying mechanisms.

OBJECTIVE: This study aimed to evaluate the efficacy and safety of applying 5% lidocaine cream to the sensitive area of the glans penis after its precise localization under the penile biological vibration threshold test for the treatment of primary premature ejaculation.
METHODS: Eighty patients diagnosed with primary premature ejaculation in an outpatient setting were included in this study. They were randomly scored into two groups. Group 1 (n = 40) was given 1 ml of 5% lidocaine cream on demand. They were instructed to apply the lidocaine cream evenly in a circular pattern to the glans penis without precise application to the sensitive area of the glans penis. The treatment lasted for a total of 4 weeks. Group 2 (n = 40) had a penile biological vibration threshold test performed to detect loci with a lower threshold. They were instructed to apply 1 ml of 5% lidocaine cream to the sensitive loci on the glans penis for 4 weeks. Lidocaine cream was applied topically or uniformly to the glans penis 20 minutes before planned intercourse in both groups .The efficacy and side effects before and after treatment were evaluated by the intravaginal ejaculation latency (IELTs) before and after treatment, combined with the Arabic Index of Premature Ejaculation and IIEF-5 score.
RESULTS: After treatment, IELTs in both groups were significantly improved compared with those before treatment(P<0.05);The Arab premature ejaculation index and IIEF-5 score of the precise smear group are higher than those of the uniform smear group(P<0.05).
CONCLUSIONS: This study infers that applying lidocaine according to the threshold of penile and glans vibration has a positive effect and fewer adverse event reports compared with the traditional method of using surface anesthetics, which is worthy of clinical promotion.

OBJECTIVE: To investigate the clinical efficacy of dapoxetine combined with transcutaneous neuromuscular electrical stimulation (TNES) in the treatment of primary premature ejaculation.
METHODS: A total of 60 patients who met the diagnostic criteria for primary premature ejaculation were selected as study subjects and randomly divided into a dapoxetine group (control group) and a dapoxetine combined with percutaneous neuromuscular electrical stimulation group (observation group).30 patients in each group were treated for 4 weeks. Intravaginal ejaculatory latency time (IELT), the score of Premature Ejaculation Diagnostic Tool (PEDT), sympathetic skin response located in the penis (PSSR), Patient Health Questionnaire (PHQ-9), and Generalized Anxiety Disorder Questionnaire (GAD-7) before and after treatment were recorded in the two groups. Before and after treatment, the difference in observed indexes in the two groups and the comparison of effective rates between the two groups were analyzed.
RESULTS: The latency of IELT and PSSR was prolonged and the PEDT score was decreased in both the observation group and the control group, the difference was statistically significant (P<0.01). Compared with the control group, the observation group had statistically significant differences in extending IELT and PSSR latency and reducing PEDT score (P<0.05). The effective rates of the observation group and control group were 90% and 63.33%, respectively, and the difference was statistically significant (P<0.05). There was no significant difference in the improvement of depression and anxiety levels between the two groups (P> 0.05).
CONCLUSIONS: Dapoxetine combined with TNES has a better clinical effect than dapoxetine alone in the treatment of primary premature ejaculation, and can be used as an effective option for clinical treatment of primary premature ejaculation.

There is a close relationship between male erectile dysfunction (ED) and premature ejaculation (PE) on the pathogenesis, leading a high comorbidity rate and a need of simultaneous treatment in clinical practice. Phosphodiesterase 5 inhibitors (PDE5i) and selective serotonin reuptake inhibitor (SSRI) Dapoxetine are first-line oral drugs for ED and PE, respectively. In recent years, multi-country clinical guidelines have provided suggestions and guidance for the combination of these two drugs, with the safety and effectiveness being further explored and verified. This review summarized the status of ED and PE comorbidity, treatment principles, and research progress on the safety and effectiveness of Dapoxetine combined with PDE5i, in order to provide reference for the combination therapy of ED and PE comorbidity.

UNASSIGNED: Physical exercise may alleviate premature ejaculation symptoms, a prevalent male sexual dysfunction linked to a series of negative outcomes for men and their partners.
UNASSIGNED: We investigated the effectiveness of high-intensity interval training (HIIT) and slow breathing interventions on premature ejaculation symptoms and their relation to autonomic activity and attention regulation.
UNASSIGNED: Chinese adult men (N = 76, M = 21.89, SD = 3.32) with premature ejaculation completed one of the two-week interventions in their homes or as participants in a normal breathing control group; they reported their age, height, weight, physical activity level, premature ejaculation symptoms, and attention regulation. In the HIIT group, 26 participants engaged in a 7-minute HIIT each day. In the slow breathing group, 25 participants performed 7-minute slow breathing exercises per day while the 25 participants in the normal breathing group similarly performed normal breathing exercises. All participants measured their heart rate once before and five times (with one-minute intervals) after the intervention. When participants had penile-vaginal sex with their partners, they measured their heart rate once after ejaculation.
UNASSIGNED: Time × Intervention interaction was significant with lower levels of premature ejaculation symptoms on Days 12, 13, and 14 in the HIIT group (M ± SD = 16.19 ± 3.45, 15.96 ± 3.43, and 15.15 ± 3.62) compared to the normal breathing group (M ± SD = 17.68 ± 3.06, 17.68 ± 3.15, and 17.44 ± 3.25). Higher levels of attention regulation were associated with fewer premature ejaculation symptoms. We also found that a larger increase in heart rate from resting to after sex was associated with fewer premature ejaculation symptoms.
UNASSIGNED: Compared to the control group, the efficacy of two weeks of HIIT exercise in mitigating PE symptoms suggests its potential as a novel treatment for PE.