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1.
Brain Behav ; 14(6): e3585, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38849981

RESUMO

INTRODUCTION: 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. CONCLUSION: 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.


Assuntos
Depressão , Imageamento por Ressonância Magnética , Rede Nervosa , Ejaculação Precoce , Humanos , Masculino , Adulto , Ejaculação Precoce/fisiopatologia , Ejaculação Precoce/diagnóstico por imagem , Depressão/fisiopatologia , Depressão/diagnóstico por imagem , Rede Nervosa/fisiopatologia , Rede Nervosa/diagnóstico por imagem , Tálamo/fisiopatologia , Tálamo/diagnóstico por imagem , Encéfalo/fisiopatologia , Encéfalo/diagnóstico por imagem , Adulto Jovem , Córtex Cerebral/fisiopatologia , Córtex Cerebral/diagnóstico por imagem , Conectoma , Vias Neurais/fisiopatologia , Vias Neurais/diagnóstico por imagem
2.
Mult Scler Relat Disord ; 85: 105531, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38492318

RESUMO

PURPOSE: To validate and culturally adapt the Sexual Health Inventory for Men (IIEF-5) and the Premature Ejaculation Diagnostic Tool (PEDT), to compare the frequency and severity of erectile dysfunction (ED) and premature ejaculation (PE) in male individuals with MS (mwMS) in comparison with healthy controls (HC) and to investigate predictors of the severity of ED and PE in mwMS. METHODS: 216 consecutive mwMS and 37 HC completed IIEF-5 and PEDT. Additionally, 114 mwMS completed the Modified Fatigue Impact Scale (MFIS), Beck Depression Inventory (BDI-2), Composite Autonomic System Score-31 (COMPASS-31), and the 5-level EQ-5D questionnaire. RESULTS: The test-retest reliability was satisfactory for both questionnaires, with acceptable reliability for both questionnaires. mwMS scored less on IIEF-5 compared to HC (23, IQR 18.25-25 vs 24, IQR 20.25-25, p = 0.028). ED was present in 39.4 % of mwMS and 27.8 % of HC (p = 0.198). Definite PE was present in 12.1 %, and possible PE in 7.8 % of mwMS; and 5.6 % and 11.1 % of HC respectively (p = 0.496). An increase in EDSS was a positive predictor (Exp(B) 1.455, 95 %CI 1.135-1.886, p = 0.003) and the presence of cremasteric reflex was a negative predictor (Exp(B) 0.381, 95 %CI 0.183-0.790, p = 0.010) for the presence of ED. For the PE, disease duration was the only positive predictor in a univariable logistic regression (Exp(B) 1.084, 95 %CI 1.019-1.153, p = 0.070). CONCLUSION: SD is frequent in mwMS with EDSS being a positive and the presence of cremasteric reflex a negative predictor of ED and disease duration a positive predictor of PE symptoms.


Assuntos
Disfunção Erétil , Esclerose Múltipla , Ejaculação Precoce , Humanos , Masculino , Adulto , Ejaculação Precoce/etiologia , Ejaculação Precoce/diagnóstico , Ejaculação Precoce/fisiopatologia , Esclerose Múltipla/complicações , Esclerose Múltipla/fisiopatologia , Disfunção Erétil/etiologia , Disfunção Erétil/diagnóstico , Disfunção Erétil/fisiopatologia , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Disfunções Sexuais Fisiológicas/etiologia , Disfunções Sexuais Fisiológicas/diagnóstico , Inquéritos e Questionários
3.
J Sex Med ; 21(5): 391-398, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38553976

RESUMO

BACKGROUND: Although premature ejaculation (PE) is the most common male sexual dysfunction, the underlying mechanisms are not fully understood. AIM: The study sought to evaluate the possible associations among glans penis volume and tissue stiffness measured using penile ultrasonography and penile shear wave elastography (SWE) with PE. METHODS: Men 18 to 65 years of age with normal International Index of Erectile Function scores (>25) and who were diagnosed with PE between June 2021 and June 2022 were enrolled. The Premature Ejaculation Diagnostic Tool score and intravaginal ejaculation latency times were recorded. Healthy volunteers constituted the control group. The study group was divided into lifelong PE (LLPE) and acquired PE (AqPE) subgroups. In all groups, the glans penis volume was measured via penile ultrasonography and tissue stiffness of the glans penis, penile frenulum, postcircumcision mucosal cuff, and penile shaft were measured via SWE. The findings of the groups were compared using appropriate statistical methods. OUTCOMES: The outcomes included ultrasonographic and elastographic measurements of the glans penis. RESULTS: Data on 140 men, including 70 PE patients and 70 healthy volunteers, were evaluated. Of the patients, 20 had LLPE and 50 had AqPE. The median glans penis volume was significantly greater in the LLPE group (14.1 [range, 6.6-19] mm3) compared with the AqPE group (11.7 [range, 5.1-27] mm3) and control group (11.4 [range, 6.1-32] mm3) (P = .03). According to the Youden index, the best cutoff value for glans penis volume in LLPE compared with non-LLPE (AqPE + control) was 12.65 mm3 (area under the curve, 0.684; 95% confidence interval, 0.556-0.812; P = .009). The risk of having LLPE in those with a glans penis volume ≥12.65 mm3 was 3.326 (95% confidence interval, 1.234-8.965) times higher than the non-LLPE group (P = .014). There were no significant differences between the groups in the SWE evaluation of glans penis, penile frenulum, mucosal cuff, and penile shaft tissue stiffness. CLINICAL IMPLICATIONS: The high incidence of PE in those with high glans penis volume may make glans penis volume a predictor for the development of LLPE. STRENGTHS AND LIMITATIONS: This was the first study to show that PE is more common in individuals with a high glans penis volume. It was also the first to perform a penile elastographic evaluation in patients with PE. The most important limitation was that we did not evaluate glans penile nerve function with a test, but rather we made an indirect inference about the density of free nerve endings based on increased glans penile volume. CONCLUSION: Glans penis volume was a significant predictor for LLPE. However, there are no associations between PE and the glans penis, postcircumcision mucosal cuff, penile frenulum, or penile shaft tissue stiffness and development.


Assuntos
Pênis , Ejaculação Precoce , Ultrassonografia , Humanos , Masculino , Pênis/diagnóstico por imagem , Pênis/anatomia & histologia , Adulto , Ejaculação Precoce/diagnóstico por imagem , Ejaculação Precoce/fisiopatologia , Pessoa de Meia-Idade , Técnicas de Imagem por Elasticidade , Tamanho do Órgão , Estudos de Casos e Controles , Adulto Jovem , Adolescente , Idoso
5.
Andrology ; 11(2): 379-398, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35933708

RESUMO

Diabetes mellitus is a rapidly rising metabolic disorder with important systemic complications. Global figures have demonstrated the prevalence of diabetes mellitus has almost quadrupled from 108 million in 1980 to 422 million in 2014, with a current prevalence of over 525 million. Of the male sexual dysfunction resulting from diabetes mellitus, significant focus is afforded to erectile dysfunction. Nevertheless, ejaculatory dysfunction constitutes important sexual sequelae in diabetic men, with up to 35%-50% of men with diabetes mellitus suffering from ejaculatory dysfunction. Despite this, aspects of its pathophysiology and treatment are less well understood than erectile dysfunction. The main disorders of ejaculation include premature ejaculation, delayed ejaculation, anejaculation and retrograde ejaculation. Although ejaculatory dysfunction in diabetes mellitus can have complex multifactorial aetiology, understanding its pathophysiological mechanisms has facilitated the development of therapies in the management of ejaculatory dysfunction. Most of our understanding of its pathophysiology is derived from diabetic animal models; however, observational studies in humans have also provided useful information in elucidating important associative factors potentially contributing to ejaculatory dysfunction in diabetic men. These have provided the potential for more tailored treatment regimens in patients depending on the ejaculatory disorder, other co-existing sequelae of diabetes mellitus, specific metabolic factors as well as the need for fertility treatment. However, evidence for treatment of ejaculatory dysfunction, especially delayed ejaculation and retrograde ejaculation, is based on low-level evidence comprising small sample-size series and retrospective or cross-sectional studies. Whilst promising findings from large randomised controlled trials have provided strong evidence for the licensed treatment of premature ejaculation, similar robust studies are needed to accurately elucidate factors predicting ejaculatory dysfunction in diabetes mellitus, as well as for the development of pharmacotherapies for delayed ejaculation and retrograde ejaculation. Similarly, more contemporary robust data are required for fertility outcomes in these patients, including methods of sperm retrieval and assisted reproductive techniques in retrograde ejaculation.


Assuntos
Diabetes Mellitus , Ejaculação , Doenças dos Genitais Masculinos , Humanos , Masculino , Estudos Transversais , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/fisiopatologia , Ejaculação/fisiologia , Ejaculação Precoce/epidemiologia , Ejaculação Precoce/etiologia , Ejaculação Precoce/fisiopatologia , Estudos Retrospectivos , Sêmen , Doenças dos Genitais Masculinos/epidemiologia , Doenças dos Genitais Masculinos/etiologia
6.
Urology ; 159: 133-138, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34688769

RESUMO

OBJECTIVES: To detect seed-based functional connectivity (FC) between various cortical sub-regions and the thalamus in lifelong premature ejaculation (LPE) patients and explore whether specific thalamocortical networks are significantly altered in PE patients compared to healthy controls (HCs) METHODS: Fifty non-medicated LPE patients and 40 age-matched HCs underwent a resting-state functional MRI. FC was adopted to identify specific thalamocortical connectivity between the thalamus and 6 cortical regions of interest (i.e., the motor cortex/supplementary motor, the prefrontal cortex, the temporal lobe, the posterior parietal cortex, the somatosensory cortex and the occipital lobe). In LPE patients, regression analysis was subsequently conducted to assess relationships of thalamocortical connectivity with the Premature Ejaculation Diagnostic Tool (PEDT) score and the Intravaginal Ejaculatory Latency Time (IELT). RESULTS: LPE patients had significantly decreased FC between the motor cortex and bilateral ventral thalamus, between the prefrontal cortex and left dorsomedial thalamus, as well as between the temporal cortex and bilateral ventromedial thalamus. In LPE patients, PEDT score was significantly positively associated with the thalamus-posterior parietal cortex FC, and negatively associated with the thalamus-temporal cortex FC, while IELT was positively associated with the thalamus-temporal cortex and thalamus-motor cortex FC. CONCLUSION: These results enrich the imaging evidence for the understanding of the neurobiological mechanisms and/or consequences of LPE.


Assuntos
Córtex Cerebral , Conectoma/métodos , Rede Nervosa , Ejaculação Precoce , Tálamo , Adulto , Córtex Cerebral/diagnóstico por imagem , Córtex Cerebral/fisiopatologia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Rede Nervosa/patologia , Rede Nervosa/fisiopatologia , Neurofisiologia , Ejaculação Precoce/diagnóstico , Ejaculação Precoce/fisiopatologia , Tálamo/diagnóstico por imagem , Tálamo/fisiopatologia
7.
J Urol ; 207(1): 172-182, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34455861

RESUMO

PURPOSE: Premature ejaculation (PE) is one of the most common male sexual dysfunctions. Local anesthetics (LAs) and dapoxetine are frequently used to treat PE; however, previous studies show variable efficacy. This study aims to determine the efficacy of LAs and dapoxetine using a novel classification based on neurophysiological tests. MATERIALS AND METHODS: This multicenter cohort study enrolled adult men (568) with an intravaginal ejaculatory latency time (IELT) ≤2 minutes. Patients were divided into 4 groups according to the results of neurophysiological tests and assigned different treatments for 12 weeks: 1) penile sensory hyperexcitability type (Sens)-LAs; 2) penile sympathetic hyperexcitability type (Symp)-dapoxetine; 3) mixed type (Mixed)-both LAs and dapoxetine; 4) normal type (Norm)-both LAs and dapoxetine. Self-estimated IELT and patient-reported outcomes were recorded. RESULTS: The total percentage of men achieving IELT >2 minutes and ≥5 minutes after treatment were 82.7% and 76.7%, respectively. For men with abnormal results of neurophysiological tests, 401 (86.6%) had improved IELT >2 minutes after the 12-week treatment course, in which 375 (81.0%) achieved IELT ≥5 minutes. All patient-reported outcome measures improved in each group after 12 weeks of treatment, with greater improvements among those with abnormal neurophysiological tests. CONCLUSIONS: The efficacy of LAs and dapoxetine increased in PE patients with abnormal results of neurophysiological tests. This novel classification of PE using neurophysiological tests could help guide and improve efficacy of PE therapies.


Assuntos
Técnicas de Diagnóstico Neurológico , Ejaculação Precoce/diagnóstico , Ejaculação Precoce/fisiopatologia , Adulto , Humanos , Masculino , Estudos Prospectivos , Adulto Jovem
8.
Fertil Steril ; 116(3): 611-617, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34462095

RESUMO

Ejaculatory dysfunction is not only psychologically distressing but can become a significant obstacle for men who wish to conceive. Dysfunction comes in the form of anejaculation, reduced ejaculation, retrograde ejaculation, painful ejaculation, or premature ejaculation. Most treatments for lower urinary tract symptoms related to benign prostatic hyperplasia, which commonly occurs in aging men, carry significant risks of absent, reduced, or retrograde ejaculation. This review focuses on such risks that accompany both the medical and surgical management of lower urinary tract symptoms/benign prostatic hyperplasia and how these risks impact male fertility.


Assuntos
Inibidores de 5-alfa Redutase/efeitos adversos , Antagonistas Adrenérgicos alfa/efeitos adversos , Ejaculação/efeitos dos fármacos , Infertilidade Masculina/induzido quimicamente , Sintomas do Trato Urinário Inferior/terapia , Ejaculação Precoce/induzido quimicamente , Prostatectomia/efeitos adversos , Hiperplasia Prostática/terapia , Fertilidade/efeitos dos fármacos , Humanos , Infertilidade Masculina/fisiopatologia , Infertilidade Masculina/terapia , Masculino , Ejaculação Precoce/fisiopatologia , Ejaculação Precoce/terapia , Recuperação de Função Fisiológica , Fatores de Risco , Resultado do Tratamento
9.
Hormones (Athens) ; 20(3): 475-482, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33928529

RESUMO

PURPOSE: Erectile dysfunction (ED) and premature ejaculation (PE) are common sexual disorders in people with diabetes. Glucose variability (GV) has been recognized as a predictor of microvascular complications. The aim of this study was to investigate the relationship between glucose variability and sexual dysfunctions in young men with type 1 diabetes. METHODS: One hundred and twelve patients with type 1 diabetes, aged 18-30 years, were enrolled. Patients were divided into two groups according to glucose variability [group 1 (high GV with coefficient of variation ≥ 36%)] and group 2 (low GV with coefficient of variation < 36%)). The presence of sexual dysfunctions was investigated with validated questionnaires. RESULTS: ED and PE prevalence rates in group 1 were 26% and 13%, respectively. Similarly, in group 2, the prevalence of ED was 24%, and the prevalence of PE was 13%. In both groups, no significant associations between sexual dysfunctions and parameters of glucose variability were found. Multiple regression analysis identified age and depression as independent predictors of ED and PE. CONCLUSION: Young male patients affected by type 1 diabetes with high or low glucose variability show a similar prevalence of sexual dysfunctions. ED is the most common sexual dysfunction in diabetic men. Age and depression were the only independent predictive factors for sexual dysfunctions in this population.


Assuntos
Diabetes Mellitus Tipo 1 , Disfunção Erétil , Ejaculação Precoce , Adolescente , Adulto , Glicemia , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/epidemiologia , Humanos , Masculino , Ejaculação Precoce/epidemiologia , Ejaculação Precoce/etiologia , Ejaculação Precoce/fisiopatologia , Inquéritos e Questionários , Adulto Jovem
10.
Andrology ; 9(1): 277-287, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32996293

RESUMO

INTRODUCTION: Hyperactivity of the sympathetic nervous system is considered as an important component involved in the pathological mechanisms of premature ejaculation (PE). However, the neural mechanisms of PE with high sympathetic activity are still not well understood. METHODS: The activity of the sympathetic innervations in the penis was evaluated by the sympathetic skin response of the penis (PSSR) with an electromyograph and evoked potential equipment. Resting-state functional magnetic resonance imaging (fMRI) data were acquired from 18 PE patients with high sympathetic activity (sPE), 17 PE patients with normal sympathetic activity (nsPE), and 24 healthy controls (HC). We investigated the neural basis of sPE based on the measure of regional homogeneity (ReHo). Moreover, the correlations between brain regions with altered ReHo and PEDT scores and PSSR latencies in the patient group were explored. RESULTS: Altered ReHo values among three groups were found in the temporal, cingulated, and parietal cortex in the default mode network (DMN), as well as the temporal cortex in the auditory network (AUD). Compared with HC, Patients with sPE had increased ReHo values of brain regions in DMN, AUD, and decreased ReHo values of brain regions in DMN. In addition, increased ReHo values were found in DMN of patients with nsPE, while decreased ReHo values were found in DMN and the attention network (AN). Moreover, sPE patients had increased ReHo values in AUD and decreased ReHo values in DMN when compared with nsPE patients. Finally, altered ReHo values of brain regions in DMN and AUD were associated with PEDT scores and PSSR latencies in the patient group. CONCLUSION: Our results suggested that PE patients had abnormal ReHo values in DMN, AUD, and AN. Patients with sPE were characterized by increased neuronal activity in AUD and decreased activity in DMN. This highlighted the significances of DMN, AUD, and AN in the pathophysiology of PE and also provided potential neuroimaging biomarkers for distinguishing sPE from nsPE and HC.


Assuntos
Córtex Cerebral/fisiopatologia , Rede de Modo Padrão/fisiopatologia , Pênis/fisiopatologia , Ejaculação Precoce/fisiopatologia , Sistema Nervoso Simpático/fisiopatologia , Adulto , Estudos de Casos e Controles , Córtex Cerebral/diagnóstico por imagem , Rede de Modo Padrão/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Masculino , Ejaculação Precoce/diagnóstico por imagem , Adulto Jovem
11.
J Endocrinol Invest ; 44(5): 1103-1118, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33128158

RESUMO

Premature ejaculation (PE) is the most prevalent male sexual dysfunction, and the most recently defined. PE is often mistakenly considered a purely psychosexological symptom by patients: the lacking awareness in regards to the pathophysiology and treatments often lead to resignation from the patients' side, making PE the most underdiagnosed sexual complaint. However, an ever-growing body of evidence supporting several organic factors has been developed in the last decades and several definitions have been suggested to encompass all defining features of PE. In the present document by the Italian Society of Andrology and Sexual Medicine (SIAMS), we propose 33 recommendations concerning the definition, pathophysiology, treatment and management of PE aimed to improve patient care. These evidence-based clinical guidelines provide the necessary up-to-date guidance in the context of PE secondary to organic and psychosexological conditions, such as prostate inflammation, endocrine disorders, and other sexual dysfunctions, and suggest how to associate pharmacotherapies and cognitive-behavioral therapy in a couple-centered approach. New therapeutic options, as well as combination and off-label treatments, are also described.


Assuntos
Administração dos Cuidados ao Paciente/métodos , Ejaculação Precoce , Andrologia/métodos , Andrologia/tendências , Diagnóstico Diferencial , Erros de Diagnóstico/prevenção & controle , Erros de Diagnóstico/psicologia , Medicina Baseada em Evidências , Humanos , Itália , Masculino , Ejaculação Precoce/etiologia , Ejaculação Precoce/fisiopatologia , Ejaculação Precoce/psicologia , Ejaculação Precoce/terapia , Comportamento Sexual , Disfunções Sexuais Fisiológicas/diagnóstico , Disfunções Sexuais Psicogênicas/diagnóstico
12.
Medicine (Baltimore) ; 99(34): e21866, 2020 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-32846840

RESUMO

INTRODUCTION: Premature ejaculation (PE) affects 8% to 30% of adult men worldwide. Recently, the incidence of PE is on the rise. A series of prior studies suggested that the incidence of PE is related to various biological factors as low testosterone, low serum vitamin D, diabetes, lower urinary tract symptoms, and other psychological factors. At present, the major treatments include selective serotonin reuptake inhibitors antidepressants (dapoxetine, paroxetine), topical anesthetics, phosphodiesterase-5 inhibitor, circumcision, and selective dorsal neurotomy (SDN). The previous study found that SDN is effective for PE. METHODS AND ANALYSIS: The electronic databases of MEDLINE, PubMed, Web of Science, EMBASE, Cochrane Library, Clinicaltrials. org, China National Knowledge Infrastructure Database (CNKI), Wan fang Database, China Biology Medicine Database (CBM), VIP Science Technology Periodical Database, Chinese Clinical Trial Registry will be retrieved. All the randomized controlled trials of selective dorsal penile neurotomy for patients with PE will be included. The outcome includes intravaginal ejaculation latency time and Chinese Index of Sexual Function for Premature Ejaculation-5. We will conduct this study strictly according to the Cochrane Handbook for Systematic Reviews of Interventions. RESULTS: The present study is a protocol for systematic review and meta-analysis without results, and data analysis will be carried out after the protocol. We will share our findings on June 30th of 2021. CONCLUSION: SDN can effectively prolong IELT, but its efficacy has not been assessed scientifically and systematically. To address this limitation, this study will inspect the efficacy and safety of the SDN treatment in patients with PE. ETHICS AND DISSEMINATION: Formal ethical approval is not required in this protocol. We will collect and analyze data based on published studies, and since there are no patients involved in this study, individual privacy will not be under concerns. The results of this review will be disseminated to peer-reviewed journals or submit to related conferences. PROTOCOL REGISTRATION NUMBER: INPLASY202070084.


Assuntos
Pênis/inervação , Ejaculação Precoce/terapia , Nervo Pudendo/cirurgia , Adulto , Anestésicos Locais/uso terapêutico , Benzilaminas/uso terapêutico , Circuncisão Masculina/métodos , Ejaculação/fisiologia , Humanos , Incidência , Masculino , Naftalenos/uso terapêutico , Paroxetina/uso terapêutico , Pênis/fisiopatologia , Inibidores da Fosfodiesterase 5/uso terapêutico , Ejaculação Precoce/epidemiologia , Ejaculação Precoce/fisiopatologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Metanálise como Assunto
13.
Urology ; 143: 159-164, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32544552

RESUMO

OBJECTIVE: To investigate abnormal intrinsic connectivity of striatum in lifelong premature ejaculation (PE) patients compared with healthy controls (HCs). METHODS: Forty-seven lifelong PE patients and 30 healthy controls were enrolled in the present study and underwent resting-state functional magnetic resonance imaging. The functional connectivity (FC) analysis and 2-sample t tests were applied to investigate the alterations of striatum-related connectivity in patients compared with HCs (significant threshold at P < .05, false discovery rate corrected), and during which Fisher's r-to-z transformation was adopted and the resulting z values were used as the statistical FC values. Correlation analysis was performed to test possible relationships between the imaging findings and clinical characteristics in the patient group (P < .05, Bonferroni correction). RESULTS: The results showed that compared with HCs, lifelong PE patients had significantly decreased FC between the right caudate and insula, superior temporal pole (STP) and orbitofrontal cortex (OFC) as well as decreased FC between the bilateral putamen and insula, STP and middle cingulate cortex (MCC). Meanwhile, patients had significantly increased FC between the left caudate and OFC, and increased FC between the right putamen and fusiform. The mean FC value from the caudate-OFC, caudate-insula, and caudate-STP connectivity negatively correlated with the Premature Ejaculation Diagnostic Tool score, separately. CONCLUSION: The current study showed the functional abnormality of lifelong PE in multiple brain regions implicated in sensation, motivation, and ejaculation-related inhibitory control, which may improve our understanding of the abnormal striatum-related neural mechanisms in lifelong PE patients.


Assuntos
Corpo Estriado/fisiopatologia , Ejaculação/fisiologia , Córtex Pré-Frontal/fisiopatologia , Ejaculação Precoce/fisiopatologia , Adulto , Estudos de Casos e Controles , Conectoma , Corpo Estriado/diagnóstico por imagem , Voluntários Saudáveis , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Rede Nervosa , Córtex Pré-Frontal/diagnóstico por imagem , Adulto Jovem
14.
Andrologia ; 52(5): e13573, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32189391

RESUMO

Premature ejaculation (PE) is one of the most common sexual disorders in men. Excessive activity of the sympathetic nervous system is considered as one of the pathological mechanisms of PE. Heart rate recovery (HRR) is a noninvasive and easily applicable method for evaluating autonomic functions. We aimed to investigate the relationship between PE and HRR. This cross-sectional study included 42 consecutive patients with lifelong PE and 98 healthy volunteers. All participants underwent stress tests according to age-dependent target heart rates outlined in the Bruce protocol. When the maximal heart rate was reached in the stress test, intensive exercise was terminated and electrocardiographic records were obtained for 3 min in the cool-down period. The HRR indices were calculated by subtracting the heart rate at first, second and third minutes from the maximal HR. The two groups were similar in terms of age, body mass index, serum glucose and lipid parameters. HRR indices were significantly lower in the PE group compared with the control group (p < .05 for all). Common factors that affect equilibrium of sympathetic and parasympathetic nervous systems may be involved in the PE and abnormal HRR etiopathogenesis. The cause-and-effect relationship can be more clearly demonstrated with large-scale, prospective studies.


Assuntos
Frequência Cardíaca/fisiologia , Ejaculação Precoce/diagnóstico , Sistema Nervoso Simpático/fisiopatologia , Adulto , Estudos Transversais , Eletrocardiografia , Teste de Esforço , Voluntários Saudáveis , Humanos , Masculino , Ejaculação Precoce/fisiopatologia , Turquia , Adulto Jovem
15.
J Sex Med ; 17(3): 442-446, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31982359

RESUMO

INTRODUCTION: Although premature ejaculation (PE) is a common sexual dysfunction, the available options for PE treatment remain unsatisfactory. AIM: To evaluate the effect of on-demand oral pregabalin on the intravaginal ejaculation latency time (IELT). METHOD: We conducted a multiarm double-blinded placebo-controlled randomized clinical trial that enrolled 120 patients with PE who were divided equally into 3 groups (A, B, and C). 4 patients were excluded, 39 patients received 150 mg pregabalin (group A), 39 patients received 75 mg pregabalin (group B), and 38 patients received placebo (group C). All patients were encouraged to engage in sexual relations twice per week for 2 weeks and to take the medication 1-2 hours before sexual intercourse. A stopwatch was used to evaluate IELT. MAIN OUTCOME MEASURE: The main outcome measure are the improvement of IELT and the reported adverse events. RESULTS: IELT significantly improved in patients who received 150 mg pregabalin, but there was no change in the other groups. CLINICAL IMPLICATIONS: Most PE patients showed a significant improvement after receiving on-demand pregabalin (150 mg). STRENGTH & LIMITATIONS: The strength of this study is that it is the first randomized controlled trial to evaluate the efficacy of pregabalin in treatment of PE. The main limitations were the small number of patients, IELT was the only primary outcome of the study, and the pregabalin cap can be identified by the patient. CONCLUSION: Oral pregabalin seems to be a promising drug for additional evaluation as a new treatment for PE. More studies are needed to evaluate the suitable dose, duration, timing, and its safety profile. El Najjar MR, El Hariri M, Ramadan A, et al. A Double Blind, Placebo Controlled, Randomized Trial to Evaluate the Efficacy and Tolerability of On-Demand Oral Pregablin (150 mg and 75 mg) in Treatment of Premature Ejaculation. J Sex Med 2020;17:442-446.


Assuntos
Pregabalina/administração & dosagem , Ejaculação Precoce/tratamento farmacológico , Adulto , Coito , Método Duplo-Cego , Ejaculação/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Ejaculação Precoce/fisiopatologia , Comportamento Sexual , Resultado do Tratamento
16.
Andrology ; 8(2): 400-406, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31532583

RESUMO

INTRODUCTION: Hyperactivity of the sympathetic nervous system was considered as one of the factors involved in the pathological mechanisms of premature ejaculation (PE). Sympathetic skin response of the penis (PSSR) was used to evaluate the activity of sympathetic innervations in the penis, which was controlled by the central nervous system (brain). Shorter PSSR was found in PE patients; however, little was known regarding the central neural mechanisms of PE patients with high sympathetic activity. METHODS: PSSR of PE patients was evaluated, and diffusion tensor images of participants were collected. Graph theoretical analysis was employed to examine the differences of the topological properties of structural brain connectome between PE patients with high sympathetic activity and healthy controls (HCs). Moreover, the relationships between topological characteristics and clinical features in PE patients were also explored. RESULTS: Decreased local efficacy was found in the left amygdala, right pallidum and thalamus in the white matter brain networks of PE when compared with HC (survived false discovery rate (FDR) correction). In addition, PE patients showed decreased global efficacy in the left amygdala and right rolandic operculum, supramarginal gyrus, heschl gyrus, inferior temporal gyrus, pallidum and thalamus; however, these results did not survive FDR correction. Finally, the local efficacy of right thalamus had a positive correlation with the premature ejaculation diagnostic tool (PEDT) scores, while the local efficacy of left amygdala was negatively associated with the state score of the state-trait anxiety inventory (STAI) and penile shaft sensory threshold. CONCLUSION: The results highlighted the abnormal topological properties of structural brain connectome in PE with high sympathetic activity. We also suggested that the clinical features of PE were related to the abnormality of several brain regions involved in the central control of ejaculation and emotion. This study provided new insights into the central neural mechanisms of PE, which might offer biological markers for understanding the physiopathology of PE.


Assuntos
Encéfalo/fisiopatologia , Vias Neurais/fisiopatologia , Ejaculação Precoce/fisiopatologia , Sistema Nervoso Simpático/fisiopatologia , Adulto , Conectoma/métodos , Imagem de Tensor de Difusão/métodos , Humanos , Masculino , Pênis/inervação
17.
Sex Med Rev ; 8(1): 92-99, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-30987933

RESUMO

INTRODUCTION: Premature ejaculation (PE) is among the most common sexual dysfunctions that affect men. Currently, topical medications are considered a first-line treatment option for PE, with no specific medication having market approval in the United States specifically for the treatment of PE. Topical agents for PE include eutectic mixture of local anesthetics cream, topical eutectic mixture for premature ejaculation spray, severance secret-cream, resiniferatoxin, and an assortment of over-the-counter treatments, including medicated condoms, sprays, and wipes. AIM: Given the paucity of controlled studies for these treatment modalities, the goal of this article is to review the currently available options for PE to help educate providers in appropriate treatment options. METHODS: Comprehensive review of published literature, as well as clinical experience were evaluated to determine efficacy of known treatments for PE. MAIN OUTCOME MEASURE: The topical treatment options and efficacy of these options for PE were reviewed. Eutectic mixture of local anesthetics, topical eutectic mixture for premature ejaculation, severance secret-cream, resiniferatoxin, and medicated condoms are the mainstay of treatment. Each has certain risks and benefits associated with use as described, as well as relative cost of use. RESULTS: Although data supporting the effectiveness of topical agents for PE is limited, prior clinical trials demonstrate increases in timed intravaginal ejaculatory latency time and improved patient-partner sexual satisfaction survey scores on some treatment options. CONCLUSION: More research is needed to evaluate efficacy, cost-effectiveness, potential side effects, and benefits of combined medical and psychological intervention for better ejaculatory control. Butcher MJ, Zubert T, Christiansen K, et al. Topical Agents for Premature Ejaculation: A Review. Sex Med Rev 2020;8:92-99.


Assuntos
Anestésicos Locais/uso terapêutico , Ejaculação Precoce/tratamento farmacológico , Preservativos , Diterpenos/uso terapêutico , Humanos , Masculino , Ejaculação Precoce/fisiopatologia
18.
Sex Med Rev ; 8(3): 473-485, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31668585

RESUMO

INTRODUCTION: Many men experience distressing issues regarding the timing of orgasm and ejaculation, such as premature ejaculation (PE) and delayed ejaculation (DE). Despite being highly prevalent, both PE and DE are poorly understood and present a management challenge for sexual medicine specialists. AIM: To summarize existing data on the medical management of PE and DE. METHODS: A comprehensive literature review pertaining to the management of PE and DE was conducted using PubMed and clinicaltrials.gov for data published up until May 2019. Our focus was on double-blind, placebo-controlled trials and meta-analyses of such studies. MAIN OUTCOME MEASURE: Peer-reviewed studies on treatment options for PE and DE were critically analyzed for results and methodological rigor. RESULTS: The peer-reviewed data on PE management continue to evolve. Psychotherapy, pharmacotherapy, and procedural interventions have all been associated with some degree of efficacy. A strong evidence base supports the off-label use of selective serotonin reuptake inhibitors and local anesthetics in PE given consistent increases in ejaculation latency time. Education and mental health assessments remain important components of PE management despite a dearth of peer-reviewed data on these interventions. Numerous treatment strategies have been evaluated for DE; limited data support psychotherapy, pharmacotherapy, and/or penile vibratory stimulation as management options. CONCLUSION: A number of management options for PE or DE exist but none has been formally approved by the US Food and Drug Administration. New and novel treatments would be of great value in managing issues regarding the timing of ejaculation/orgasm. Martin-Tuite P, Shindel AW. Management Options for Premature Ejaculation and Delayed Ejaculation in Men. Sex Med Rev 2020; 8:473-485.


Assuntos
Ejaculação , Ejaculação Precoce/terapia , Humanos , Masculino , Ejaculação Precoce/epidemiologia , Ejaculação Precoce/fisiopatologia , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Disfunções Sexuais Fisiológicas/epidemiologia , Disfunções Sexuais Fisiológicas/fisiopatologia , Disfunções Sexuais Fisiológicas/terapia
19.
Andrology ; 8(2): 353-357, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31536679

RESUMO

BACKGROUND: Many diseases have been associated with anogenital distance, as an indicator of intrauterine androgen exposure. OBJECTIVES: The aim of this study was to investigate the association between lifelong premature ejaculation and anogenital distance. MATERIALS AND METHODS: The study included 140 participants: 70 with lifelong premature ejaculation (group 1) and 70 without any ejaculatory complaints (group 2). Premature Ejaculation Diagnostic Tool and stopwatch intravaginal ejaculatory latency time were recorded from all participants in order to evaluate ejaculatory function. Two variants of anogenital distance were measured: anogenital distance (from anus to the posterior base of the scrotum) from anus to the posterior base of the scrotum and anogenital distance (from anus to the cephalad insertion of the penis) to the cephalad insertion of the penis. We compared differences between groups and correlations between anogenital distance variants and patients' characteristics. RESULTS: The groups were similar in terms of age, BMI, and total testosterone levels. The mean anogenital distance (from anus to the posterior base of the scrotum) scores were 59.45 ± 10.76 vs. 55.02 ± 10.13 (p = 0.01), and anogenital distance (from anus to the cephalad insertion of the penis) scores were 128.37 ± 22.2 vs. 126.78 ± 16.21 (p = 0.63) in groups 1 and 2, respectively. Significant correlation was observed between anogenital distance (from anus to the posterior base of the scrotum) and Premature Ejaculation Diagnostic Tool scores (r = 0.199, p = 0.019) and intravaginal ejaculatory latency time (r = -0.185, p = 0.028). There were no statistically significant differences between anogenital distance (from anus to the posterior base of the scrotum) scores and total testosterone levels and between anogenital distance (from anus to the cephalad insertion of the penis) and Premature Ejaculation Diagnostic Tool scores or intravaginal ejaculatory latency time. CONCLUSIONS: These results suggest that longer anogenital distance is associated with higher possibility of lifelong premature ejaculation. However, further studies are needed to confirm our results.


Assuntos
Canal Anal/anatomia & histologia , Pênis/anatomia & histologia , Ejaculação Precoce/fisiopatologia , Adulto , Pesos e Medidas Corporais , Humanos , Masculino
20.
Andrologia ; 52(1): e13473, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31746051

RESUMO

To explore the efficacy of regular penis-root masturbation (PRM) versus Kegel exercise (KE) in the treatment of primary premature ejaculation (PPE). This study was a prospective quasi-randomised controlled trial. Thirty-seven heterosexual males with PPE were selected according to the time sequence of outpatient consultations and the preliminary results of a pre-experiment and were assigned to an PRM group and a KE group. Differences in intravaginal ejaculatory latency times (IELTs) and premature ejaculation diagnostic tool (PEDT) scores were compared between the two groups. The study was approved by the Ethics Committee of the First Affiliated Hospital of Guangxi Medical University. Among the 37 PPE patients, 18 performed PRM and 19 patients performed KE. The IELTs of patients who performed PRM and KE were significantly prolonged before treatment, and the difference after treatment was statistically significant (p < .05). Compared with the KE group, the IELT prolongation effect in the PRM group was more significant PRM (p < .05). The PEDT scores of patients after performing PRM and KE were significantly lower than those before performing these exercises (p < .05). Compared with the KE group, the PEDT scores of the PRM group exhibited a greater decrease (p < .05). Thus, both PRM and KE have therapeutic effects on PPE. Compared with KE, PRM is more effective in the treatment of PPE.


Assuntos
Ejaculação/fisiologia , Terapia por Exercício/métodos , Masturbação , Ejaculação Precoce/reabilitação , Adulto , Humanos , Masculino , Ejaculação Precoce/fisiopatologia , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
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