Application of Rat Model of Neurotic Erectile Dysfunction in Experiment / 中国医学科学院学报

Erectile dysfunction (ED) refers to the persistent inability to achieve and/or maintain a sufficient erection of the penis to obtain a satisfactory sexual life,which affects the quality of life of the patients and their sexual partners.To decipher the pathophysiological mechanism of ED,researchers have established a variety of animal models and achieved a series of progress.The cavernous nerve (CN) of rodents,anatomically similar to that of humans,is cost-effective,thick,and easy to be identified,which has gradually become the mainstream of animal models.In this paper,we reviewed the modeling methods of the neurological ED caused by bilateral CN injury in rats in recent years,summarized the model evaluation indicators,and discussed the application and progress of ED models in basic experimental research.

The association between heavy metal exposure and erectile dysfunction in the United States / 亚洲男科学杂志(英文版)

Literature regarding the impacts of heavy metal exposure on erectile dysfunction (ED) is scarce. We aimed to evaluate the correlation between 10 urinary metals and ED in a large, nationally representative adult male sample. The dataset was extracted from the National Health and Nutrition Examination Survey (NHANES) during the period of 2001-2002 and 2003-2004. Weighted proportions and multivariable logistic regression analysis adjusted for confounding variables were utilized to determine the relationship between metal exposure and ED. Weighted quantile sum (WQS) regression was utilized to evaluate the impact of a mixture of urinary metals on ED. A total of 1328 participants were included in our study. In multivariable logistic regression analysis, cobalt (Co) and antimony (Sb) were positively associated with ED (odds ratio [OR]: 1.36, 95% confidence interval [CI]: 1.10-1.73, P = 0.020; and OR: 1.41, 95% CI: 1.12-1.77, P = 0.018, respectively) after full adjustment. Men in tertile 4 for Co (OR: 1.49, 95% CI: 1.02-2.41, P for trend = 0.012) and Sb (OR: 1.53, 95% CI: 1.08-2.40, P for trend = 0.041) had significantly higher odds of ED than those in tertile 1. Furthermore, the WQS index was significantly linked with increased odds of ED after full adjustment (OR: 1.31, 95% CI: 1.04-1.72, P < 0.05). Our study expanded on previous literature indicating the possible role of heavy metal exposure in the etiology of ED. The evaluation of heavy metal exposure should be included in the risk assessment of ED.

Transsphenoidal surgery for prolactinomas in male patients: a retrospective study / 亚洲男科学杂志(英文版)

Male patients with prolactinomas usually present with typical hyperprolactinemia symptoms, including sexual dysfunction and infertility. However, clinical factors related to sexual dysfunction and surgical outcomes in these patients remain unclear. This study aimed to investigate the outcomes of male patients with prolactinomas after transsphenoidal surgery and the risk factors affecting sexual dysfunction. This study was conducted on 58 male patients who underwent transsphenoidal surgery for prolactinomas between May 2014 and December 2020 at the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. We evaluated the sexual function of patients before and after surgery through International Index of Erectile Function-5 scores, libido, and frequency of morning erection. Of the 58 patients, 48 (82.8%) patients had sexual intercourse preoperatively. Among those 48 patients, 41 (85.4%) patients presented with erectile dysfunction. The preoperative International Index of Erectile Function-5 scores in patients with macroprolactinomas were significantly higher than those in patients with giant prolactinomas (17.63 ± 0.91 vs 13.28 ± 1.43; P = 0.01). Postoperatively, the incidence of erectile dysfunction was 47.9%, which was significantly lower than that preoperatively (85.4%; P = 0.01). Twenty-eight (68.3%) patients demonstrated an improvement in erectile dysfunction. Tumor size and invasiveness were significantly correlated with the improvement of erectile dysfunction. Preoperative testosterone <2.3 ng ml-1 was an independent predictor of improvement in erectile dysfunction. In conclusion, our results indicated that tumor size and invasiveness were important factors affecting the improvement of sexual dysfunction in male patients with prolactinoma. The preoperative testosterone level was an independent predictor related to the improvement of erectile dysfunction.

Research Advances on the Relationship between Overt Hyperthyroidism and Risk of Erectile Dysfunction / 中国医学科学院学报

Studies have demonstrated the detrimental effects of overt hyperthyroidism on sexual functioning.Here,we comprehensively reviewed the studies that focused on the association between overt hyperthyroidism and erectile dysfunction (ED).After the systematic searching for relevant studies,we find that overt hyperthyroidism is significantly associated with the high risk of ED.The prevalence of ED in patients with hyperthyroidism ranges from 3.05% to 85%,while that in general population is 2.16% to 33.8%.A study reported that the erectile functioning of the hyperthyroidism patients was improved (International Index of Erectile Function:22.1±6.9 vs. 25.2±5.1) after the achievement of euthyroidism.The underlying mechanism of the increase in the risk of ED by overt hyperthyroidism might be correlated to the dysfunction of hypothalamus-pituitary-thyroid axis,dysregulation of sex hormones,abnormal expression of thyroid hormone receptors,and psychiatric or psychological disturbances (e.g.,depression,anxiety,and irritability).Since limited clinical trials have been conducted,additional well-designed cohorts with sizable samples are warranted to elucidate the evidence and mechanism of hyperthyroidism predisposing to ED.The present review indicates that overt hyperthyroidism and the risk of ED are associated,which reminds the clinicians should assess the thyroid stimulating hormone in hyperthyroidism patients presenting with ED,especially in those without positive conventional laboratory findings for causing ED.

Evaluación de la salud sexual, mental y sueño en hombres chilenos posterior a infección por SARS-CoV-2 / Sexual, physical, mental and sleep sequelae four months after SARS-CoV-2 disease

BACKGROUND: Long term sequelae can be observed after SARS-CoV2. AIM: To describe the sexual, physical, mental and sleep sequelae four months after SARS-CoV2 diagnosis. PATIENTS AND METHODS: Patients recovering from SARS-CoV2 with different degrees of disease severity were consecutively included and separated in two study groups, namely Group 1 including patients that had an acute respiratory distress syndrome (ARDS) and Group 2 including those with mild or moderate COVID-19. Handgrip strength, respiratory polygraphy (RP), Quality of life using the SF-12 questionnaire, and the international index of erectile (IIEF-5) function were assessed. RESULTS: Twenty patients who had ARDS, and 10 without ARDS were included. Erectile dysfunction was observed in 77 and 10% of patients with and without ARDS, respectively (p < 0.01). The figures for sleep obstructive apnea were 82 and 40% respectively (p = 0.02) and for the physical domain SF-12 score were 39.2 and 47.9 points respectively (p = 0.01). No differences in muscle strength were observed. After a multivariable analysis, previous ARDS due to COVID-19 was independently associated with erectile dysfunction, with an odds ratio of 30.6 (95% confidence intervals, 3.08300.3, p = 0.003). CONCLUSIONS: Among men with ARDS due to COVID-19, the prevalence of erectile dysfunction was high and independently associated with a severe disease four months after discharge.

Neurovascular bundle preservation in robotic-assisted radical prostatectomy: How I do it after 15. 000 cases

ABSTRACT Despite the neuroanatomy knowledge of the prostate described initially in the 1980's and the robotic surgery advantages in terms of operative view magnification, potency outcomes following robotic-assisted radical prostatectomy still challenge surgeons and patients due to its multifactorial etiology. Recent studies performed in our center have described that, in addition to the surgical technique, some important factors are associated with erectile dysfunction (ED) following robotic-assisted radical prostatectomy (RARP). These include preoperative Sexual Health Inventory for Men (SHIM) score, age, preoperative Gleason score, and Charlson Comorbidity Index (CCI). After performing 15,000 cases, in this article we described our current Robotic-assisted Radical Prostatectomy technique with details and considerations regarding the optimal approach to neurovascular bundle preservation.

Erectile function after partial penectomy for penile cancer

ABSTRACT Purpose: To evaluate the erectile function in patients who underwent partial penectomy and identify factors associated with penile functional status. Materials and Methods: We identified patients who underwent partial penectomy due to penile cancer between 2009 and 2014. Clinical and pathological characteristics included patient age at the time of diagnosis, obesity, hypertension, dyslipidemia, diabetes, smoking, metabolic syndrome, Eastern Cooperative Oncology Group (ECOG) status, penile shaft length, tumor size, primary tumor stage (pT), clinical nodal status, and local recurrence. Erectile function was assessed prospectively with the International Index of Erectile Function (IIEF-5) at least 3 months after partial penectomy. Results: A total of 81 patients met analysis criteria. At the diagnosis, the median age was 62 years (range from 30 to 88). Median follow-up was 17 months (IQR 7-36). Of total patients, 37 (45%) had T2 or higher disease. Clinically positive nodes were present in 16 (20%) patients and seven (8.6%) developed local recurrence. Fifty patients (62%) had erectile dysfunction (ED) after partial penectomy, 30% had moderate or severe erectile dysfunction scores. Patients with ED versus without ED were similar in baseline characteristics except for age, penile shaft length, and presence of inguinal adenopathy (p <0.05). Multivariate analysis using logistic regression confirmed that older patients, shorter penile shaft length, and clinically positive lymph node were significantly associated with ED. Conclusion: Partial penectomy due to penile cancer provides adequate local control of the disease, however, proper counselling is important especially in relation to ED consequences. Preservation of penile length yields to more optimal erectile recovery.

Ressecção anterior do reto vs prostatectomia radical. Existem diferenças na reabilitação sexual? / Anterior resection of the rectum vs radical prostatectomy. Are there any differences in sexual rehabilitation?

RESUMO Objetivo: O objetivo deste estudo foi avaliar o impacto da reabilitação peniana na recuperação da função erétil em pacientes submetidos a ressecção anterior do reto (RAR) ou a prostatectomia radical (PR), comparando os resultados entre esses dois grupos. Materiais e Métodos: Foi realizado estudo de coorte retrospetivo unicêntrico, em pacientes avaliados na nossa consulta multidisciplinar de oncosexologia, entre janeiro de 2015 e janeiro de 2018, submetidos a PR ou RAR (homens) com disfunção sexual. Avaliamos as características oncológicas dos pacientes, idade, estado civil, tipo de disfunção sexual, Índice Internacional de Função Erétil (IIEF-5) na primeira e última consulta e terapêutica utilizada. Foi realizada análise estatística. Resultados: Foram incluídos 55 pacientes, 60% (33) realizaram RAR e 40% (22) PR. Em relação à disfunção sexual após a cirurgia, a disfunção erétil (DE) foi encontrada na maioria dos pacientes (> 95%). Na pontuação inicial do IIEF-5, os pacientes com RAR e PR apresentaram, com maior frequência, DE moderada ou grave (escore 5-11), em 78,8% e 59,1% dos casos, respetivamente. Ao reavaliar a pontuação do IIEF-5 de cada paciente durante o acompanhamento, verificou-se melhoria em 69,7% dos pacientes com RAR e 72,7% dos pacientes com PR (p = 0,81). Quanto à abordagem terapêutica, 84,8% dos pacientes com RAR foram medicados com inibidores da fosfodiesterase-5 (PDE5I) exclusivamente e 3% com injeção de Alprostadil. Os pacientes com PR foram medicados com PDE5I em 63,6% e com injeção de Alprostadil em 31,8% (p <0,05). Conclusões: Apesar das diferenças técnicas destas cirurgias, do ponto de vista sexual, os pacientes se beneficiaram com a reabilitação peniana.

ABSTRACT Purpose: The aim of this study was to evaluate the impact of penile rehabilitation in restoring erectile function in patients submitted to anterior resection of the rectum (ARR) or radical prostatectomy (RP), comparing the results between these two groups. Materials and Methods: We performed a unicenter retrospective cohort study, on patients evaluated in our multidisciplinary oncosexology consultation, between January 2015 and January 2018, submitted to RP or ARR (males) and presenting sexual dysfunction. We evaluate the patient and oncologic characteristics, the type of sexual dysfunction, marital status, assessed the International Index of Erectile Function (IIEF-5) on the first and last consultation and the therapeutic approach. A statistical analysis was performed. Results: A total of 55 patients were included, 60% (33) performed ARR and 40% (22) RP. Regarding the sexual dysfunction after surgery, erectile dysfunction (ED) was found in the majority of patients (>95%). On the initial IIEF-5 scoring, ARR and RP patients had, most frequently, severe or moderate ED (score 5-11), 78.8% and 59.1% respectively. When reassessed the IIEF-5 scoring of each patient during follow-up, there was an improvement in 69.7% of ARR patients and 72.7% of RP patients (p=0.81). Regarding the therapeutic approach, 84.8% of ARR patients used phosphodiesterase-5 inhibitors (PDE5I) exclusively, 3% used Alprostadil injection, while RP patients used 63.6% and 31.8%, respectively (p<0.05). Conclusions: Despite the technical differences of these surgeries, from the sexual point of view these patients benefit with a penile rehabilitation.

Effect of smoking cessation on sexual functions in men aged 30 to 60 years

ABSTRACT Purpose We aimed to evaluate the effects of smoking cessation on the sexual functions in men aged 30 to 60 years. Materials and Methods Male patients aged 30 to 60 years that presented to the smoking cessation polyclinic between July 2017 and December 2018 were prospectively included in the study. The amount of exposure to tobacco was evaluated in pack-year. The patients filled the International Index of Erectile Function (IIEF) form before the cessation and six months after cessation of smoking. Patients were subgrouped according to age, education level and packs/year of smoking and this groups were compared in terms of IIEF total and all of the IIEF domains. Results The evaluations performed by grouping the patients according to age (30-39, 40-49 and 50-60 years) and education level (primary-middle school and high school-university) revealed that the total IIEF scores obtained after smoking cessation were significantly higher compared to the baseline scores in all groups (p=0.007 for the 30-39 years group and p <0.001 for the remaining groups). According to grouping by exposure to smoking (≤25, 26-50, 51-75, 76-100 and 101≥ packs/year), the total IIEF scores significantly increased after smoking cessation in all groups except 101≥ packs/year (p=0.051 for the 101≥ group and p <0.001 for the remaining groups). Conclusions Erectile function is directly proportional to the degree of exposure to smoking, and quitting smoking improves male sexual function in all age groups between 30-60 years of age regardless of pack-year and education level.

Prevalence and risk factors for erectile dysfunction in HIV-infected patients in Salvador, Brazil

ABSTRACT Background: Effective antiretroviral therapy (ART) has increased life expectancy for HIV patients to levels close to that observed for general population. Comorbidities are also increasing, due to ageing of such population. Erectile dysfunction (ED) has been a frequent finding in men living with HIV. Objectives: The goals of the present study were to define the prevalence of ED and associated factors in HIV-infected men, in a referral center of Salvador city, Brazil. Methods: HIV-infected men ≥18 years of age, receiving care at the AIDS Clinics of Complexo Hospitalar Professor Edgard Santos (C-HUPES), Universidade Federal da Bahia were consecutively included in the study until the estimated sample size (N = 134) was reached. Patients filled a structured questionnaire on clinical-epidemiological characteristics, as well as the International Index on Erectile Function to assess ED. Results: Most (55%) were black and single (79%), mean age 44.8 years. ED was detected in 29 (21.6%) patients; 86% of ED cases were classified as severe. The only factors associated with ED were low income (p = 0.02) and unemployment (p = 0.01). No association was found between ED and frequency of comorbidities, age, or ART used by patients. Conclusion: In a referral center in Salvador city, socio-economic problems were the main factors associated with ED. Psychological impact of poor social conditions should be routinely assessed in patients with ED to implement preventive measures for ED.

Effects of perioperative pelvic floor muscle training on early recovery of urinary continence and erectile function in men undergoing radical prostatectomy: a randomized clinical trial

ABSTRACT Aims: Radical prostatectomy (RP) can result in urinary incontinence (UI) and erectile dysfunction (ED), which negatively impact quality of life (QoL). This study aimed to evaluate the effects of a perioperative pelvic floor muscle training (PFMT) program versus usual care on early recovery of urinary continence and erectile function after RP. Materials and Methods: Of 59 eligible men, 31 were randomly allocated into 2 groups: Group 1 (Control, N=15) received usual post-RP care; and Group 2 (Physical therapy, N=16) received two pre-RP physical therapist-guided PFMT sessions, including exercises and electromyographic biofeedback, and verbal and written instructions to continue PFMT until RP, which was then resumed after urethral catheter removal. The International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) and the 5-item version of the International Index of Erectile Function (IIEF-5) questionnaire were used to evaluate UI and ED, respectively. Results: Demographic characteristics were similar in both groups. Three months after RP, the UI rate was 72.7% and 70.0% in Groups 1 and 2, respectively (P >0.05). The severity and frequency of UI and its impact on QoL were evaluated by the ICIQ-Short Form, with scores of 6.9±6.26 in Group 1 and 7.0±5.12 in Group 2 (P >0.05). The IIEF-5 scores were similar in Groups 1 and 2 (5.73±7.43 vs. 6.70±6.68, respectively) (P >0.05). Conclusion: Our pre-RP protocol of two physical therapist-assisted sessions of PFMT plus instructions did not significantly improve urinary continence or erectile function at 3 months after RP.

Safety and effectiveness evaluation of open reanastomosis for obliterative or recalcitrant anastomotic stricture after radical retropubic prostatectomy

ABSTRACT Purpose: To evaluate safety, efficacy and functional outcomes after open vesicourethral re - anastomosis using different approaches based on previous urinary continence. Materials and Methods: Retrospective study of patients treated from 2002 to 2017 due to vesicourethral anastomosis stricture (VUAS) post radical prostatectomy (RP) who failed endoscopic treatment with at least 3 months of follow-up. Continent and incontinent patients post RP were assigned to abdominal (AA) or perineal approach (PA), respectively. Demographic and perioperative variables were registered. Follow-up was completed with clinical interview, uroflowmetry and cystoscopy every 4 months. Success was defined as asymptomatic patients with urethral lumen that allows a 14 French flexible cystoscope. Results: Twenty patients underwent open re-anastomosis for VUAS after RP between 2002 and 2017. Mean age was 63.7 years (standard deviation 1.4) and median follow-up was 10 months (range 3 - 112). The approach distribution was PA 10 patients (50%) and AA 10 patients (50%). The mean surgery time and median hospital time were 246.2 ± 35.8 minutes and 4 days (range 2 - 10), respectively with no differences between approaches. No significant complication rate was found. Three patients in the AA group had gait disorder with favorable evolution and no sequels. Estimated 2 years primary success rate was 80%. After primary procedures 89.9% remained stenosis - free. All PA patients remained incontinent, and 90% AA remained continent during follow-up. Conclusion: Open vesicourethral re - anastomosis treatment is a reasonable treatment option for recurrent VUAS after RP. All patients with perineal approach remained incontinent while incontinence rate in abdominal approach was rather low.

The effect of urethroplasty surgery on erectile and orgasmic functions: a prospective study

ABSTRACT Objectives: to examine the effects of urethroplasty surgery on sexual functions by taking into account age, location of stenosis, length of stenosis and surgical technique parameters. Materials and Methods: The prospective study was conducted between January 2015 and August 2017 with 60 cases. Patients were categorized according to age groups (19-65 / 65-75 years), surgery technique and stricture localization and length. Before the urethroplasty operation and postoperative 6th month follow-up, the international index of erectile function (IIEF) form (15 questions), was filled, the relevant domains of sexual function; erectile function (Q1,2,3,4,5,15), orgasmic function (Q9,10) and overall satisfaction (Q13,14) were assessed. Results: The mean age of the cases is 54 ± 13. However, preoperative IIEF, sexual satisfaction and orgasmic function averages of patients with a stenosis segment length of 1-3 cm was found to be significantly higher than that of patients with a stenosis segment length of 4-7 cm. Between stenosis segment length groups, there was no statistical difference in terms of preoperative and postoperative sexual functions. And also, there was no statistically significant change in patients' preoperative and postoperative sexual function scores in terms of localization of stricture and surgery techniques. However, there were statistically significant change in the postoperative IIEF and sexual satisfaction averages according to preoperative averages. Conclusion: Our study suggests that urethroplasty surgery itself does not significantly affect erectile function, orgasmic function, and general sexual satisfaction regardless of the type of surgery, localization and length of stenosis. Besides, there was a significant decrease in erectile function in senior adults.

Low serum melatonin levels are associated with erectile dysfunction

ABSTRACT Objective: Melatonin is a hormone secreted from the pineal gland and has anti-oxidative and anti-inflammatory effects. Oxidative stress is considered as an important factor in the etiology of erectile dysfunction (ED), and in many experimental models, positive results have been obtained with melatonin treatment. This study aimed to measure serum melatonin levels in ED patients and to investigate the possible relationship between ED and melatonin levels. Materials and Methods: Sixty-two patients diagnosed with mild, moderate or severe ED according to the five-item International Erectile Function Index (IIEF-5) and 22 healthy individuals were included in the study. The serum melatonin levels, anthropometric data, and other biochemical and hormonal parameters of all the subjects were recorded. Detailed anamnesis was also obtained in terms of diabetes, hypertension, cardiovascular diseases, smoking status, and alcohol use. Results: The serum melatonin level was found 34.2±13.3 ng/dL in the mild ED group, 33.3±14.7 ng/dL in the moderate ED group, 34.8±17.2 ng/dL in the severe ED group, and 44.6±16.5 ng/dL in the control group. The serum melatonin levels were significantly lower in all ED groups compared to the control group (p=0.019). There was no significant difference in the serum melatonin levels between the three ED groups. Diabetes, hypertension, cardiovascular diseases, smoking and alcohol use were not significantly different between the ED groups (p>0.05). Conclusion: We consider that if our findings are supported by further studies with larger populations, the measurement of the serum melatonin level may have a future role in the diagnosis and treatment of ED.

A new technique, combined plication-incision (CPI), for correction of penile curvature

ABSTRACT Introduction Penile curvature (PC) can be surgically corrected by either corporoplasty or plication techniques. These techniques can be complicated by post-operative: penile shortening, recurrent PC, painful/palpable suture knots and erectile dysfunction. Objective To avoid the complications of corporoplasty and plication techniques using a new technique: combined plication-incision (CPI). Materials and Methods Two groups (1&2) were operated upon: group 1 using CPI and group 2 using the 16-dot technique. In CPI, dots were first marked as in 16 dot technique. In each group of 4 dots the superficial layer of tunica albuginea was transversely incised (3-6mm) at the first and last dots. Ethibond 2/0, passed through the interior edge of the first incision plicating the intermediate 2 dots and passed out of the interior edge of the last incision, was tightened and ligated. Vicryle 4/0, passed through the exterior edges of the incisions, was tightened and ligated to cover the ethibond knot. Results Twelve (57.1 %) participants in group 2 complained of a bothering palpable knot compared to none in group 1 with statistically significant difference (P=0.005). Postoperative shortening (5mm) of erect penis, encountered in 9 participants, was doubled in group 2 but with insignificant difference (P>0.05). Post-operative recurrence of PC, was encountered in only 1 (4.8%) participant in group 2, compared to none in group 1, with insignificant difference (P>0.05). Post-operative erectile rigidity was normally maintained in all participants. Conclusion The new technique was superior to the 16-dot technique for correction of PC.

Impact on sexual function of surgical treatment in rectal cancer

ABSTRACT Introduction The development of new surgical techniques and medical devices, like therapeutical multimodal approaches has allowed for better outcomes on patients with rectal cancer (RCa). Owing to that, an increased awareness and investment towards better outcomes regarding patients' sexual and urinary function has been recently observed. Aim Evaluate and characterize the sexual dysfunction of patients submitted to surgical treatment for RCa. Materials and Methods An observational retrospective study including all male patients who underwent a surgical treatment for RCa between January 2011 December 2014 (n=43) was performed, complemented with an inquiry questionnaire to every patient about its sexual habits and level of function before and after surgery. Discussion All patients were male, with an average of 64yo. (range 42-83yo.). The surgical procedure was a rectum anterior resection (RAR) in 22 patients (56%) and an abdominoperineal resection (APR) in 19(44%). Sixty three percent described their sexual life as important/very important. Sexual function worsening was observed in 76% (65% with complains on erectile function, and 27% on ejaculation). Fourteen patients (38%) didn't resume sexual activity after surgery. Increased age (p=0.007), surgery performed (APR) (p=0.03) and the presence of a stoma (p=0.03) were predictors of ED after surgery. A secondary analysis found that the type of surgery (APR) (p=0.04), lower third tumor's location (p=0.03) and presence of comorbidities (p=0.013) (namely, smokers and diabetic patients) were predictors of de novo ED after surgery. Conclusions This study demonstrated the clear negative impact in sexual function of patients submitted to a surgical treatment for RCa. Since it is a valued feature for patients, it becomes essential to correctly evaluate/identify these cases in order to offer an adequate therapeutical option.

Stage effect of chronic kidney disease in erectile function

ABSTRACT Purpose The study aims to assess the influence of the stage of chronic kidney disease and glomerular filtration rate on prevalence and degree of erectile dysfunction. Materials and Methods This transversal study, conducted from May 2013 to December 2015, included patients with chronic kidney disease in conservative treatment, stages III/IV/V. Erectile dysfunction was evaluated by the International Index of Erectile Function. Data classically associated with erectile dysfunction were obtained by medical record review. Erectile dysfunction, degree of erectile dysfunction, and other main variables associated with erectile dysfunction were compared between patients with chronic kidney disease on conservative treatment stages III versus IV/V using the Chi-square test. The relationship between score of the International Index of Erectile Dysfunction and glomerular filtration rate was established by Pearson correlation coefficient. Results Two hundred and forty five patients with chronic kidney disease in conservative treatment participated of the study. The prevalence of erectile dysfunction in patients with chronic kidney disease in stages IV/V was greater than in stage III. Glomerular filtration rate positively correlated with score of the International Index of Erectile Dysfunction. Conclusions The study suggests that chronic kidney disease progression (glomerular filtration rate decrease and advance in chronic kidney disease stages) worsen erectile function. Hypothetically, diagnosis and treatment of erectile dysfunction may be anticipated with the analysis of chronic kidney disease progression.

Ondas de choque de baja intensidad como alternativa terapéutica de la disfunción eréctil: experiencia inicial en el Hospital Italiano de Buenos Aires y revisión de la bibliografía / Low Intensity Shock Waves as a Therapeutic Alternative for Erectile Dysfunction: Initial Experience at the Hospital Italiano de Buenos Aires and Review of The Literature

Objetivos: los inhibidores de fosfodiesterasa revolucionaron el tratamiento de la disfunción eréctil. Las ondas de choque de baja intensidad emergen como una alternativa terapéutica no invasiva. Materiales y métodos: estudio de cohorte prospectiva y observacional, en el que se evaluó la respuesta de 17 pacientes sexualmente activos al tratamiento con ondas de choque de baja intensidad a los 3 y 6 meses, mediante el Indice Internacional de Función Eréctil (IIEF-6), las preguntas 2 y 3 del Sexual Encounter Profile (SEP-2 y SEP-3), y el Erection Hardness Score (EHS) para evaluar la rigidez peneana, así como una evaluación de satisfacción global con el tratamiento (GAQ) y de recomendación del mismo. Resultados: 6 pacientes presentaban disfunción eréctil leve y 11 disfunción eréctil moderada-severa. Ambos grupos mostraron diferencias estadísticamente significativas en el IIEF-6, SEP-2, SEP-3 y EHS, a los 3 y 6 meses. Sin embargo, no todos los pacientes se mostraron satisfechos o recomendarían el tratamiento, sobre todo en aquellos con disfunción eréctil moderada-severa previo al tratamiento. Conclusión: las ondas de choque de baja intensidad son un tratamiento emergente para la disfunción eréctil, aunque aun sin evidencia clara de su eficacia e indicaciones. Los dispares resultados de los grupos se han debido probablemente a la heterogeneidad de las condiciones basales de los pacientes.(AU)

Objectives: Iphosphodiesterase inhibitors revolutionized the treatment of erectile dysfunction. Low intensity shockwave therapy emerge as a non-invasive therapeutic alternative. Materials and methods: this was a prospective and observational study, in which 17 sexually active patients were evaluated 3 and 6 months after treatment with low intensity shockwave therapy, using the International Index of Erectile Function (IIEF-6), questions 2 and 3 of the Sexual Encounter Profile (SEP-2 and SEP-3), and the Erection Hardness Score (EHS) to assess penile rigidity, as well as a global satisfaction evaluation with the treatment (GAQ) and if they would recommend it to others. Results: 6 patients showed mild erectile dysfunction and 11 moderatesevere erectile dysfunction. Both groups showed statistically significant differences in IIEF-6, SEP-2, SEP-3 and EHS, after 3 and 6 months. However, not all of them were satisfied with the treatment or would recommend it to others, especially those with moderate-severe basal erectile dysfunction. Conclusion: low intensity shockwave therapy is an emergent treatment for erectile dysfunction, although there is no sufficient evidence of its efficacy and indications. The differences between groups were due probably to the heterogeneity of the basal conditions of the patients.(AU)