John Dean
London Clinic
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The Journal of Sexual Medicine | 2010
Stanley E. Althof; Carmita Helena Najjar Abdo; John Dean; Geoff Hackett; Marita P. McCabe; Chris G. McMahon; Raymond C. Rosen; Richard Sadovsky; Marcel D. Waldinger; Edgardo Becher; Gregory A. Broderick; Jacques Buvat; Irwin Goldstein; Amr El-Meliegy; François Giuliano; Wayne J.G. Hellstrom; Luca Incrocci; Emmanuele A. Jannini; Kwangsung Park; Sharon J. Parish; Hartmut Porst; David L. Rowland; Robert Taylor Segraves; Ira D. Sharlip; Chiara Simonelli; Hui Meng Tan
INTRODUCTIONnOver the past 20 years our knowledge of premature ejaculation (PE) has significantly advanced. Specifically, we have witnessed substantial progress in understanding the physiology of ejaculation, clarifying the real prevalence of PE in population-based studies, reconceptualizing the definition and diagnostic criterion of the disorder, assessing the psychosocial impact on patients and partners, designing validated diagnostic and outcome measures, proposing new pharmacologic strategies and examining the efficacy, safety and satisfaction of these new and established therapies. Given the abundance of high level research it seemed like an opportune time for the International Society for Sexual Medicine (ISSM) to promulgate an evidenced-based, comprehensive and practical set of clinical guidelines for the diagnosis and treatment of PE.nnnAIMnDevelop clearly worded, practical, evidenced-based recommendations for the diagnosis and treatment of PE for family practice clinicians as well as sexual medicine experts. Method.u2002 Review of the literature.nnnRESULTSnThis article contains the report of the ISSM PE Guidelines Committee. It affirms the ISSM definition of PE and suggests that the prevalence is considerably lower than previously thought. Evidence-based data regarding biological and psychological etiology of PE are presented, as is population-based statistics on normal ejaculatory latency. Brief assessment procedures are delineated and validated diagnostic and treatment questionnaires are reviewed. Finally, the best practices treatment recommendations are presented to guide clinicians, both familiar and unfamiliar with PE, in facilitating treatment of their patients.nnnCONCLUSIONnDevelopment of guidelines is an evolutionary process that continually reviews data and incorporates the best new research. We expect that ongoing research will lead to a more complete understanding of the pathophysiology as well as new efficacious and safe treatments for this sexual dysfunction. Therefore, it is strongly recommended that these guidelines be re-evaluated and updated by the ISSM every 4 years.
The Journal of Sexual Medicine | 2011
Jacques Buvat; Francesco Montorsi; Mario Maggi; Hartmut Porst; Antti Kaipia; Marie Helène Colson; Beatrice Cuzin; Ignacio Moncada; Antonio Martin-Morales; Aksam Yassin; Eric Meuleman; Ian Eardley; John Dean; Ridwan Shabsigh
INTRODUCTIONnAddition of testosterone (T) may improve the action of phosphodiesterase type 5 inhibitors (PDE5-Is) in patients with erectile dysfunction not responding to PDE5-Is with low or low-normal T levels.nnnAIMSnTo confirm this add-on effect of T in men optimally treated with PDE5-Is and to specify the baseline T levels at which such an effect becomes significant.nnnMETHODSnA multicenter, multinational, double-blind, placebo-controlled study of 173 men, 45-80 years, nonresponders to treatment with different PDE5-Is, with baseline total T levels ≤ 4 ng/mL or bioavailable T ≤ 1 ng/mL. Men were first treated with tadalafil 10 mg once a day (OAD) for 4 weeks; if not successful, they were randomized in a double-blind, placebo-controlled design to receive placebo or a 1% hydroalcoholic T gel (50 mg/5 g gel), to be increased to 10 mg T if results were clinically unsatisfactory. Main Outcomes Measures.u2002 Mean change from baseline in the Erectile Function Domain Score of the International Index of Erectile Function and rate of successful intercourses (Sexual Encounter Profile 3 question).nnnRESULTSnErectile function progressively improved over a period of at least 12 weeks in both the placebo and T treatment groups. In the overall population with a mean baseline T level of 3.37 ± 1.48 ng/mL, no additional effect of T administration to men optimally treated with PDE5-Is was encountered. The differences between the T and placebo groups were significant for both criteria only in the men with baseline T ≤ 3 ng/mL.nnnCONCLUSIONSnThe maximal beneficial effects of OAD dosing with 10 mg tadalafil may occur only after as many as 12 weeks. Furthermore, addition of T to this PDE5-I regimen is beneficial, but only in hypogonadal men with baseline T levels ≤ 3 ng/mL.
The Journal of Sexual Medicine | 2014
Stanley E. Althof; Chris G. McMahon; Marcel D. Waldinger; Ege Can Serefoglu; Alan W. Shindel; P. Ganesan Adaikan; Edgardo Becher; John Dean; François Giuliano; Wayne J.G. Hellstrom; Annamaria Giraldi; Sidney Glina; Luca Incrocci; Emmanuele A. Jannini; Marita P. McCabe; Sharon J. Parish; David L. Rowland; R. Taylor Segraves; Ira D. Sharlip; Luiz Otavio Torres
INTRODUCTIONnIn 2009, the International Society for Sexual Medicine (ISSM) convened a select panel of experts to develop an evidence-based set of guidelines for patients suffering from lifelong premature ejaculation (PE). That document reviewed definitions, etiology, impact on the patient and partner, assessment, and pharmacological, psychological, and combined treatments. It concluded by recognizing the continually evolving nature of clinical research and recommended a subsequent guideline review and revision every fourth year. Consistent with that recommendation, the ISSM organized a second multidisciplinary panel of experts in April 2013, which met for 2 days in Bangalore, India. This manuscript updates the previous guidelines and reports on the recommendations of the panel of experts.nnnAIMnThe aim of this study was to develop clearly worded, practical, evidenced-based recommendations for the diagnosis and treatment of PE for family practice clinicians as well as sexual medicine experts.nnnMETHODnA comprehensive literature review was performed.nnnRESULTSnThis article contains the report of the second ISSM PE Guidelines Committee. It offers a new unified definition of PE and updates the previous treatment recommendations. Brief assessment procedures are delineated, and validated diagnostic and treatment questionnaires are reviewed. Finally, the best practices treatment recommendations are presented to guide clinicians, both familiar and unfamiliar with PE, in facilitating treatment of their patients.nnnCONCLUSIONnDevelopment of guidelines is an evolutionary process that continually reviews data and incorporates the best new research. We expect that ongoing research will lead to a more complete understanding of the pathophysiology as well as new efficacious and safe treatments for this sexual dysfunction. We again recommend that these guidelines be reevaluated and updated by the ISSM in 4 years.
The Journal of Sexual Medicine | 2014
Ege Can Serefoglu; Chris G. McMahon; Marcel D. Waldinger; Stanley E. Althof; Alan W. Shindel; Ganesh Adaikan; Edgardo Becher; John Dean; François Giuliano; Wayne J.G. Hellstrom; Annamaria Giraldi; Sidney Glina; Luca Incrocci; Emmanuele A. Jannini; Marita P. McCabe; Sharon J. Parish; David L. Rowland; R. Taylor Segraves; Ira D. Sharlip; Luiz Otavio Torres
INTRODUCTIONnThe International Society for Sexual Medicine (ISSM) Ad Hoc Committee for the Definition of Premature Ejaculation developed the first evidence-based definition for lifelong premature ejaculation (PE) in 2007 and concluded that there were insufficient published objective data at that time to develop a definition for acquired PE.nnnAIMnThe aim of this article is to review and critique the current literature and develop a contemporary, evidence-based definition for acquired PE and/or a unified definition for both lifelong and acquired PE.nnnMETHODSnIn April 2013, the ISSM convened a second Ad Hoc Committee for the Definition of Premature Ejaculation in Bangalore, India. The same evidence-based systematic approach to literature search, retrieval, and evaluation used by the original committee was adopted.nnnRESULTSnThe committee unanimously agreed that men with lifelong and acquired PE appear to share the dimensions of short ejaculatory latency, reduced or absent perceived ejaculatory control, and the presence of negative personal consequences. Men with acquired PE are older, have higher incidences of erectile dysfunction, comorbid disease, and cardiovascular risk factors, and have a longer intravaginal ejaculation latency time (IELT) as compared with men with lifelong PE. A self-estimated or stopwatch IELT of 3 minutes was identified as a valid IELT cut-off for diagnosing acquired PE. On this basis, the committee agreed on a unified definition of both acquired and lifelong PE as a male sexual dysfunction characterized by (i) ejaculation that always or nearly always occurs prior to or within about 1 minute of vaginal penetration from the first sexual experience (lifelong PE) or a clinically significant and bothersome reduction in latency time, often to about 3 minutes or less (acquired PE); (ii) the inability to delay ejaculation on all or nearly all vaginal penetrations; and (iii) negative personal consequences, such as distress, bother, frustration, and/or the avoidance of sexual intimacy.nnnCONCLUSIONnThe ISSM unified definition of lifelong and acquired PE represents the first evidence-based definition for these conditions. This definition will enable researchers to design methodologically rigorous studies to improve our understanding of acquired PE.
The Journal of Sexual Medicine | 2015
John Dean; Chris G. McMahon; André T. Guay; Abraham Morgentaler; Stanley E. Althof; Edgardo Becher; Trinity J. Bivalacqua; Arthur L. Burnett; Jacques Buvat; Amr El Meliegy; Wayne J.G. Hellstrom; Emmanuele A. Jannini; Mario Maggi; Andrew McCullough; Luiz Otavio Torres; Michael Zitzmann
INTRODUCTIONnIn 2014, the International Society for Sexual Medicine (ISSM) convened a panel of experts to develop an evidence-based process of care for the diagnosis and management of testosterone deficiency (TD) in adult men. The panel considered the definition, epidemiology, etiology, physiologic effects, diagnosis, assessment and treatment of TD. It also considered the treatment of TD in special populations and commented on contemporary controversies about testosterone replacement therapy, cardiovascular risk and prostate cancer.nnnAIMnThe aim was to develop clearly worded, practical, evidenced-based recommendations for the diagnosis and treatment of diagnosis and management of TD for clinicians without expertise in endocrinology, such as physicians in family medicine and general urology practice.nnnMETHODnA comprehensive literature review was performed, followed by a structured, 3-day panel meeting and 6-month panel consultation process using electronic communication. The final guideline was compiled from reports by individual panel members on areas reflecting their special expertise, and then agreed by all through an iterative process.nnnRESULTSnThis article contains the report of the ISSM TD Process of Care Committee. It offers a definition of TD and recommendations for assessment and treatment in different populations. Finally, best practice treatment recommendations are presented to guide clinicians, both familiar and unfamiliar with TD.nnnCONCLUSIONnDevelopment of a process of care is an evolutionary process that continually reviews data and incorporates the best new research. We expect that ongoing research will lead to new insights into the pathophysiology of TD, as well as new, efficacious and safe treatments. We recommend that this process of care be reevaluated and updated by the ISSM in 4 years.
The Journal of Sexual Medicine | 2013
Chris G. McMahon; François Giuliano; John Dean; Wayne J.G. Hellstrom; Scott Bull; Fisseha Tesfaye; Om Sharma; David Rivas; Joseph W. Aquilina
INTRODUCTIONnMen with comorbid erectile dysfunction (ED) and premature ejaculation (PE) may be concomitantly prescribed a phosphodiesterase type 5 (PDE5) inhibitor and dapoxetine.nnnAIMnEvaluate efficacy and safety of dapoxetine 30u2009mg and 60u2009mg on demand (prn) in men with PE and ED who were being treated with PDE5 inhibitors.nnnMETHODSnThis randomized, double-blind, placebo-controlled, flexible-dose, multicenter study enrolled men ≥18 years who met diagnostic criteria for PE including intravaginal ejaculatory latency time (IELT) of ≤2 minutes in ≥75% of sexual intercourse episodes; were on stable regimen of a PDE5 inhibitor; and had International Index of Erectile Function-erectile function domain score ≥21. Subjects received placebo, dapoxetine 30u2009mg, or dapoxetine 60u2009mg prn (1-3 hours before intercourse) for 12 weeks.nnnMAIN OUTCOME MEASUREnStopwatch-measured average IELT, Clinical Global Impression of Change (CGIC) in PE, Premature Ejaculation Profile (PEP), and treatment-emergent adverse events (TEAEs).nnnRESULTSnOf 495 subjects randomized, 429 completed the study. Arithmetic mean average IELT significantly increased with dapoxetine vs. placebo at end point (5.2 vs. 3.4 minutes) and weeks 4, 8, and 12 (Pu2009≤u20090.002 for all). Men who described their PE at least better using the CGIC were significantly greater with dapoxetine vs. placebo at end point (56.5% vs. 35.4%) and weeks 4, 8, and 12 (Pu2009≤u20090.001 for all). Significantly better outcomes were also reported with dapoxetine vs. placebo on PEP measures. Incidence of TEAEs was 20.0% and 29.6% in placebo- and dapoxetine-treated subjects, respectively (Pu2009=u20090.0135). TEAEs led to discontinuation in 1.6% of subjects in both groups. Most frequent TEAEs were known adverse drug reactions of dapoxetine treatment including nausea (9.2%), headache (4.4%), diarrhea (3.6%), dizziness (2.4%), and dizziness postural (2.4%).nnnCONCLUSIONSnIn men with PE and comorbid ED on a stable regimen of PDE5 inhibitor, dapoxetine provided meaningful treatment benefit and was generally well tolerated.
The Journal of Sexual Medicine | 2009
Eusebio Rubio-Aurioles; Michael Sand; Nadine Terrein-Roccatti; John Dean; Jan Longworth; Ian Eardley; Jay Lee; Iván Arango de Montis; Claudia Rampazzo-Bonaldo
INTRODUCTIONnAlthough erectile dysfunction (ED) affects both members of the couple, no tools exist for the detection of ED by the female partner.nnnAIMnThe aim of this study was to develop a scale for the detection of ED, as assessed by the female partner.nnnMETHODSnDevelopment and validation of the Female Assessment of Male Erectile dysfunction detection scale (FAME) consisted of five stages: (i) two focus group discussions conducted among female partners of ED sufferers; (ii) item construction; (iii) initial content validation to document face validity and reduce number of items; (iv) final selection of items and investigation of concurrent validity and reliability, sensitivity and specificity of the scale in 83 Spanish-speaking couples; and (v) multicenter study conducted in a group of 106 English-speaking couples. Concurrent validity was assessed using Spearmans rho correlation coefficients between FAME and clinical diagnosis, the Sexual Health Inventory for Men (SHIM), and the erectile function domain of the International Index of Erectile Function (IIEF-EF). Reliability was tested using Cronbachs alpha, and sensitivity and specificity was investigated using clinical diagnosis as the gold standard criterion.nnnMAIN OUTCOME MEASURESnValidity, reliability, specificity, and sensitivity of the FAME scale when correlated with SHIM, IIEF-EF, and clinical diagnosis.nnnRESULTSnQualitative analysis yielded 44 clues; 21 items demonstrated statistical significance as the best discriminating items using a t-test for independent samples. A final scale of six items was tested for validity, reliability, specificity, and sensitivity. FAME correlated significantly with clinical diagnosis (0.791, P < 0.001), the SHIM (0.788, P < 0.001), and the IIEF-EF (0.777, P < 0.001). Additional support for discriminant validity was obtained with receiver operating characteristics analysis. Cronbachs alpha was 0.941. Sensitivity was 96.1% and specificity 86.0%.nnnCONCLUSIONSnAccurate detection of ED in men by the female partner is possible. In this study, FAME demonstrated concurrent validity and very good reliability, as well as excellent sensitivity and specificity.
The Journal of Sexual Medicine | 2011
Tara Symonds; John Dean; Alison Carr; Martin Carlsson; Aditya Marfatia; Gabriel Schnetzler
INTRODUCTIONnIn Europe, pharmacists may be an important first point of contact for men with erectile dysfunction (ED) asking for advice and treatment.nnnAIMnTo determine if European community pharmacists could appropriately recommend suitability for supply of sildenafil 50 mg for the treatment of ED.nnnMETHODSnFor this cross-sectional, observational study, the current Summary of Product Characteristics was adapted to create a study drug information sheet for use in a pharmacy setting in which, for certain patients, supply is not suitable and referral to a physician is recommended. After training and with use of a guidance questionnaire, pharmacists assessed the suitability of supply of sildenafil 50 mg for men presenting to their pharmacy. Men with self-reported ED who were not currently using a phosphodiesterase type 5 inhibitor were recruited. Within 7 days of the pharmacist-patient interaction, a physician with experience in the management of ED telephoned the subject to assess suitability. If there was discordance between the pharmacist and physician recommendations, the case was independently reassessed by a physician specialist in sexual medicine.nnnMAIN OUTCOME MEASURESnThe primary end point was the concordance rate (with 95% confidence intervals) between pharmacist and physician recommendations. Rates were weighted by country sample sizes.nnnRESULTSnConcordance (95% confidence interval) was 0.70 (0.66-0.74) between pharmacist and physician recommendation, indicating agreement in 70% of cases, and was 0.90 (0.86-0.94) between pharmacist and physician specialist in sexual medicine. Furthermore, if the cases in which the pharmacist did not put subjects at risk (i.e., gave an acceptable recommendation) are assessed, the success rate is 83.5% (79.6-87.4%) and 92.8% (90.1-95.5%), respectively.nnnCONCLUSIONnPharmacists were accurate in providing suitable treatment recommendation, generally not recommending sildenafil for men without ED and recommending physician assessment when there was any question about cardiovascular health, other comorbidity, or co-medication.
BJUI | 2008
Chris G. McMahon; Stanley E. Althof; Marcel D. Waldinger; Hartmut Porst; John Dean; Ira D. Sharlip; P. Ganesan Adaikan; Edgardo Becher; Gregory A. Broderick; Jacques Buvat; Khalid Dabees; Annamaria Giraldi; François Giuliano; Wayne J.G. Hellstrom; Luca Incrocci; Ellen Laan; Eric Meuleman; Michael A. Perelman; Raymond C. Rosen; David L. Rowland; Robert Taylor Segraves
The Journal of Sexual Medicine | 2010
Jacques Buvat; Francesco Montorsi; Mario Maggi; Hartmut Porst; Antti Kaipia; Marie Helène Colson; Beatrice Cuzin; Ignacio Moncada; Antonio Martín-Morales; Aksam Yassin; Eric Meuleman; Ian Eardley; John Dean; Ridwan Shabsigh