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1.
Eur Urol Focus ; 6(4): 770-775, 2020 07 15.
Article in English | MEDLINE | ID: mdl-31023551

ABSTRACT

BACKGROUND: For transgender men choosing to undergo phalloplasty with urethral lengthening, there is a potential for hair growth in the neourethra. Depilation of the urethral donor site may reduce subsequent intraurethral hair growth. OBJECTIVES: To evaluate the effectiveness of preoperative laser depilation and assess the correlation between urethral hair density and voiding among transgender men undergoing phalloplasty with urethral lengthening. DESIGN, SETTING, AND PARTICIPANTS: This was a retrospective study of 25 transgender men undergoing phalloplasty with urethral lengthening between July 2010 and April 2015 at the VU University Medical Center in Amsterdam. INTERVENTION: Phalloplasty with urethral lengthening using skin with or without preoperative depilation. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Data on preoperative laser depilation treatments were obtained from the local laser center. Intraurethral images were captured via urethroscopy and used to rate hair density. Images of the contralateral forearm were used as a reference. Hair density was rated in terms of the number of hairs per view as zero, low (1-9), moderate (10-19), or high (≥20). Voiding was assessed using the International Prostate Symptom Score (IPSS) questionnaire, a 24-h voiding diary, and uroflowmetry. RESULTS AND LIMITATIONS: Twenty-five patients underwent urethroscopy. In the depilation group (n = 14) the hair reduction was significant and hair density was downgraded on average by 1.0 points (95% confidence interval [CI] 0.5-1.5). The mean number of laser treatment sessions was 6 (range 2-10). In the no-depilation group (n = 11), hair density did not significantly differ between the urethra and the contralateral arm (mean difference 0.18, 95% CI 0.5-0.9). The majority of the patients reported mild voiding complaints (median IPSS score 7, range 2-28) and had a normal functional bladder capacity and a nonobstructed urinary flow with low postvoid volumes. CONCLUSIONS: Laser epilation treatment reduces hair growth but does not eliminate hair. Voiding complaints do not seem to be related to hair density in the urethra. PATIENT SUMMARY: For skin donor sites used in penis construction for transgender men, the amount of hair growth is reduced by preoperative laser depilation, but hair is still present in the new urethra. Hair in the urethra does not cause urinary voiding complaints.


Subject(s)
Hair Removal , Hair/growth & development , Penis/surgery , Preoperative Care , Sex Reassignment Surgery/methods , Skin Transplantation , Transplant Donor Site/surgery , Urethra/surgery , Urination , Adult , Humans , Male , Retrospective Studies , Urologic Surgical Procedures, Male/methods
2.
Ned Tijdschr Geneeskd ; 1622018 May 18.
Article in Dutch | MEDLINE | ID: mdl-30040265

ABSTRACT

Erectile dysfunction is the continuous or recurring inability to get or to maintain an erection rigid enough for sexual activity. Non-urologists will often restrict themselves to counselling, lifestyle advice or the prescription of an erection pill. However, most erection pills are manufactured and traded illegally. The Dutch Institute for Rational Use of Medicine has repeatedly pleaded the case for over-the-counter trading, but the Dutch College of General Practitioners opposes this. It is the needs expressed by the patient and the appropriate expertise rather than the cause of the problem that determine referral. For some patients intracavernous self-injection with vasoactive substances may be an acceptable solution. Implantation of a penile prosthesis is currently carried out under stringent conditions at a limited number of healthcare centres. In the 2018 Dutch urological training programme, residents are able to apply for an internship in andrological urology and engage in the diagnosis and treatment of sexual dysfunction.


Subject(s)
Erectile Dysfunction , Urology , Erectile Dysfunction/therapy , Humans , Internship and Residency , Male , Urology/education
3.
BMJ Case Rep ; 20182018 Feb 17.
Article in English | MEDLINE | ID: mdl-29455174

ABSTRACT

Since the use of antibiotics, bladder necrosis has become a rare condition. We report a case of bladder necrosis in a 90-year-old man following urinary retention. After insertion of a transurethral catheter (TUC), 2 L of urine was evacuated. In the following days, the TUC became intermittently blocked. Adequate bladder drainage could not be obtained despite intensive rinsing and placement of a suprapubic catheter. On surgical exploration necrosis of almost the entire bladder wall, except for the trigone, was encountered. Surgical debridement of the non-viable bladder wall without opening the abdominal cavity was conducted, and a TUC was placed in the Retzius cavity to ensure evacuation of urine. Since the patient was haemodynamically unstable, construction of a urinary diversion was waived and urinary drainage of the Retzius cavity by the TUC was accepted, resulting in adequate urinary drainage without compromising renal function.


Subject(s)
Catheters, Indwelling , Urinary Bladder Diseases/etiology , Urinary Bladder Diseases/therapy , Urinary Bladder/pathology , Urinary Retention/complications , Aged, 80 and over , Creatine/analysis , Humans , Male , Necrosis , Tomography, X-Ray Computed , Urinary Bladder/surgery , Urinary Catheterization/methods , Urinary Retention/etiology
4.
J Sex Med ; 14(12): 1621-1628, 2017 12.
Article in English | MEDLINE | ID: mdl-29128275

ABSTRACT

BACKGROUND: Genital dissatisfaction is an important reason for transmen to undergo genital gender-confirming surgery (GCS; phalloplasty or metoidioplasty). However, little is known about motives for choosing specific techniques, how transmen benefit postoperatively, and whether psychosexual outcomes improve. AIM: To evaluate motivations for and psychosexual outcomes after GCS. METHODS: A longitudinal study of 21 transmen at least 1 year after GCS was conducted. Participants were recruited through their surgeon. Data were collected when they applied for surgery and at least 1 year after surgery. OUTCOMES: Data collection included semistructured questionnaires on motivations for surgery, postoperative experiences, and standardized measures of psychological symptoms, body image, self-esteem, sexuality, and quality of life (pre- and postoperative). Information on surgical complications and corrections was retrieved from medical records. RESULTS: Most participants underwent phalloplasty with urethral lengthening using a radial forearm flap. Although problematic voiding symptoms were prevalent, many participants were satisfied with their penile function. The strongest motivations to pursue penile surgery were confirmation of one's identity (100%), enabling sexual intercourse (78%), and voiding while standing (74%). No significant differences between postoperative and reference values were observed for standardized measures. After surgery, transmen were more sexually active (masturbation and with a partner) and used their genitals more frequently during sex compared with before surgery (31-78%). CLINICAL IMPLICATIONS: The present study provides input for preoperative decision making: (i) main motives for surgery include identity confirmation, voiding, and sexuality, (ii) surgery can result in more sexual activity and genital involvement during sex, although some distress can remain, but (iii) complications and voiding symptoms are prevalent. STRENGTH AND LIMITATIONS: Study strengths include its longitudinal design and the novelty of the studied outcomes. The main limitations include the sample size and the nature of the assessment. CONCLUSION: Counseling and decision making for GCS in transmen should be a highly personalized and interdisciplinary practice. van de Grift TC, Pigot GLS, Boudhan S, et al. A Longitudinal Study of Motivations Before and Psychosexual Outcomes After Genital Gender-Confirming Surgery in Transmen. J Sex Med 2017;14:1621-1628.


Subject(s)
Transgender Persons/psychology , Transsexualism/psychology , Transsexualism/surgery , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Longitudinal Studies , Male , Middle Aged , Motivation , Penis/surgery , Quality of Life , Sex Reassignment Surgery , Sexual Behavior , Surveys and Questionnaires , Urethra/surgery , Young Adult
5.
J Sex Med ; 14(9): 1104-1115, 2017 09.
Article in English | MEDLINE | ID: mdl-28781213

ABSTRACT

BACKGROUND: The benefits and risks of long-term testosterone administration have been a topic of much scientific and regulatory interest in recent years. AIM: To assess long-term quality of life (QOL) and sexual function benefits of testosterone replacement therapy (TRT) prospectively in a diverse, multinational cohort of men with hypogonadism. METHODS: A multinational patient registry was used to assess long-term changes associated with TRT in middle-age and older men with hypogonadism. Comprehensive evaluations were conducted at 6, 12, 24, and 36 months after enrollment into the registry. OUTCOMES: QOL and sexual function were evaluated by validated measures, including the Aging Males' Symptom (AMS) Scale and the International Index of Erectile Function (IIEF). RESULTS: A total of 999 previously untreated men with hypogonadism were enrolled at 25 European centers, 750 of whom received TRT at at least one visit during the period of observation. Patients on TRT reported rapid and sustained improvements in QOL, with fewer sexual, psychological, and somatic symptoms. Modest improvements in QOL and sexual function, including erectile function, also were noted in RHYME patients not on TRT, although treated patients showed consistently greater benefit over time in all symptom domains compared with untreated patients. AMS total scores for patients on TRT were 32.8 (95% confidence interval = 31.3-34.4) compared with 36.6 (95% confidence interval = 34.8-38.5) for untreated patients (P < .001). Small but significant improvements in IIEF scores over time also were noted with TRT. Approximately 25% of treated and untreated men also used phosphodiesterase type 5 inhibitors, with notable differences in the frequency of phosphodiesterase type 5 inhibitor prescription use according to physician specialty and geographic site location. CLINICAL IMPLICATIONS: TRT-related benefits in QOL and sexual function are well maintained for up to 36 months after initiation of treatment. STRENGTHS AND LIMITATIONS: The major strengths are the large, diverse patient population being treated in multidisciplinary clinical settings. The major limitation is the frequency of switching from one formulation to another. CONCLUSION: Overall, we confirmed the broad and sustained benefits of TRT across major QOL dimensions, including sexual, somatic, and psychological health, which were sustained over 36 months in our treatment cohort. Rosen RC, Wu F, Behre H, et al. Quality of Life and Sexual Function Benefits Effects of Long-Term Testosterone Treatment: Longitudinal Results From the Registry of Hypogonadism in Men (RHYME). J Sex Med 2017;14:1104-1115.


Subject(s)
Hormone Replacement Therapy , Hypogonadism/drug therapy , Testosterone/therapeutic use , Adult , Aged , Cohort Studies , Europe , Humans , Hypogonadism/physiopathology , Hypogonadism/psychology , Longitudinal Studies , Male , Middle Aged , Penile Erection/drug effects , Prospective Studies , Quality of Life , Registries , Sexual Behavior , Young Adult
6.
Aging Male ; 18(3): 157-63, 2015.
Article in English | MEDLINE | ID: mdl-26030346

ABSTRACT

BACKGROUND: There has been a longstanding question as to whether testosterone therapy could precipitate or worsen urinary symptoms in aging men. We investigated the effects of 1-year oral testosterone undecanoate (TU) therapy on urinary symptoms in aging, hypogonadal men. METHODS: A total of 322 men ≥50 years with symptomatic testosterone deficiency participated in a 1-year, randomized, multicenter, double-blind trial. Patients received placebo or oral TU 80 mg/day, 160 mg/day, or 240 mg/day. RESULTS AND LIMITATIONS: Compared with placebo, treatment with oral TU at doses of 80 mg/day and 160 mg/day resulted in no significant change in IPSS urinary symptoms or quality of life (QoL) scores. Treatment with oral TU 240 mg/day led to a statistically significant, but clinically insignificant, improvement in IPSS total score and a significant improvement in IPSS QoL score. None of the TU doses tested had a significant effect on PSA or PV. CONCLUSIONS: Long-term oral TU therapy had no deleterious effects on IPSS total score and did not change PV and PSA in aging, hypogonadal men. Oral TU therapy at a dose of 240 mg/day may even improve IPSS QoL score.


Subject(s)
Androgens/administration & dosage , Hypogonadism/drug therapy , Lower Urinary Tract Symptoms/drug therapy , Testosterone/analogs & derivatives , Administration, Oral , Aged , Aging , Dose-Response Relationship, Drug , Double-Blind Method , Humans , Hypogonadism/physiopathology , Lower Urinary Tract Symptoms/etiology , Male , Middle Aged , Prostatic Hyperplasia/complications , Testosterone/administration & dosage , Testosterone/blood
7.
Urol Oncol ; 33(1): 7-15, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25159013

ABSTRACT

OBJECTIVES: The traditional assumption of a linear relationship between serum testosterone and prostate cancer growth has been seriously challenged, as overwhelming evidence contradicts its basic principles. Luteinizing hormone-releasing hormone (LHRH) agonists are known to cause a peak in serum testosterone level in the initial weeks of treatment, and prevention of the clinical sequelae of testosterone flare by concomitant use of antiandrogens is recommended. Along the present biological concept that there appears to be a limit to the ability of androgens to stimulate prostate cancer growth, termed the saturation model, the use of antiandrogens to prevent this disease flare is questioned. The purpose of this review is to gain historical and modern evidence to provide an objective and up-to-date basis for clinical decision making. METHODS AND MATERIALS: We performed a comprehensive research of the electronic databases PubMed and Embase until April 1, 2014. Studies with the subject of disease flare in men with prostate cancer on LHRH agonist therapy were included, as were studies that assessed the efficacy of antiandrogens to prevent this flare. Case reports were included as well. RESULTS: Overall, 25 studies considering disease flare were included: 9 randomized clinical trials with an LHRH agonist and an LHRH agonist/antiandrogen arm, 14 observational studies evaluating LHRH agonists only, and 2 case reports. The incidence of disease flare was reported between 0% and 83% owing to a wide set of clinical, biochemical, and radiological factors evaluated. In some of the randomized clinical trials, a statistically significant reduction of the incidence of disease flare by concomitant use of antiandrogens was reported. Most of these historical studies report on subjective worsening of disease symptoms as outcome measure. More objective outcome measures such as the prostate-specific antigen level did not seem to increase to higher than the baseline values. CONCLUSIONS: At present, there is a lack of compelling data showing definite disease progression during the short period of testosterone flare after initiation of LHRH agonist therapy. Based on the saturation model, presence of disease flare and the need to prevent this flare by concomitant use of antiandrogens might well be a misconception.


Subject(s)
Androgen Antagonists/therapeutic use , Antineoplastic Agents, Hormonal/therapeutic use , Gonadotropin-Releasing Hormone/agonists , Prostatic Neoplasms/drug therapy , Humans , Male , Prostatic Neoplasms/blood , Prostatic Neoplasms/pathology , Risk Factors , Testosterone/blood
8.
Ned Tijdschr Geneeskd ; 158: A7189, 2014.
Article in Dutch | MEDLINE | ID: mdl-25004781

ABSTRACT

Peyronie's disease is caused by collagen deposits in the tunica albuginea of the corpus cavernosum following microtrauma. Symptoms may include a combination of penile curvature, a palpable plaque, painful erections and erectile dysfunction. Peyronie's disease can have a major impact on the quality of life. In the course of the disease two phases can be discerned. In the first, active phase there is penile curvature with painful erections. The second, stable phase is characterised by painless curvature of the penis. Treatment in the active phase is conservative and supportive. Surgical treatment is useful only in the stable phase and may consist of penile plication surgery or penile graft surgery.


Subject(s)
Penile Induration/diagnosis , Erectile Dysfunction/etiology , Humans , Male , Penile Induration/complications , Penis/injuries , Penis/pathology , Quality of Life
9.
BMC Urol ; 14: 37, 2014 May 15.
Article in English | MEDLINE | ID: mdl-24885301

ABSTRACT

BACKGROUND: Botulinum toxin A (BoNT-A) is a new treatment modality in various causes of bladder dysfunction; like neurogenic detrusor overactivity and overactive bladder. The best technique of administrating BoNT-A in patients is unknown. A validated in vitro model could be used to investigate newer intravesical administration techniques of BoNT-A. In this study, we describe the development and validation of in vitro model to measure inhibitory effects of BoNT-A on bladder strip contractions. METHODS: Rat bladder strips were mounted in organ baths filled with Krebs' solution. The strips were stimulated chemically (80 mM potassium chloride, 1 µM carbachol) and electrically (Electrical Field Stimulation (EFS) 100 shocks, 50 V, 20 Hz, every 3 minutes). The viability of the strips was measured by carbachol stimulation at the beginning and at the end of the experiments. The strips were incubated in various concentrations of BoNT-A (0.03, 0.2, 0.3 nM). Controls were incubated in Krebs' solution only. The inhibition of strip contraction induced by EFS was measured. These measurements were statistically analyzed with a log-logistic model representing diffusion. RESULTS: All strips remained viable during the experiments. Inhibition of strip contraction was observed after incubation with 0.3 nM BoNT-A. The measurements fitted to a log-logistic model describing diffusion of BoNT-A in the bladder strip. The parameters of the log-logistic model representing diffusion were significant for 0.3 nM BoNT-A. Incubation with 0.2 nM BoNT-A showed insignificant results for 2 out of 3 runs. Incubation with 0.03 nM BoNT-A did not result in significant inhibition of strip contractions. CONCLUSIONS: An in vitro model was developed and validated in which the inhibitory effect of low concentrations of BoNT-A on bladder strip contractions can be measured.


Subject(s)
Botulinum Toxins, Type A/administration & dosage , Muscle Contraction/drug effects , Muscle Contraction/physiology , Muscle, Smooth/drug effects , Muscle, Smooth/physiology , Urinary Bladder/drug effects , Urinary Bladder/physiology , Animals , Biological Assay/methods , Dose-Response Relationship, Drug , Drug Evaluation, Preclinical/methods , In Vitro Techniques , Male , Models, Animal , Neuromuscular Agents/administration & dosage , Rats , Rats, Wistar
10.
Aging Male ; 16(2): 38-47, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23581697

ABSTRACT

OBJECTIVE: We investigated the effects of oral testosterone undecanoate (TU) on bone mineral density (BMD), lean body mass (LBM) and body fat mass (BFM) in aging men with symptomatic testosterone deficiency (TD). METHODS: Three hundred twenty-two men ≥50 years with TD symptoms and calculated free testosterone <0.26 nmol/L participated in a multicenter, double-blind, placebo-controlled trial. Patients were randomized to placebo, oral TU 80 mg/d, oral TU 160 mg/d, or oral TU 240 mg/d, administered as divided doses with normal meals. BMD of the hip and lumbar spine were evaluated by dual energy X-ray absorptiometry (DEXA), and body composition (LBM and BFM) by whole body DEXA. RESULTS: Oral TU significantly increased BMD at Month 12 at the lumbar spine (240 mg/d), total hip (240 mg/d), and trochanter and intertrochanter (160 and 240 mg/d) compared with placebo. Oral TU significantly increased LBM at Months 6 and 12 for all oral TU groups compared with placebo. BFM significantly decreased at Month 6 (all oral TU groups) and Month 12 (160 mg/d) compared with placebo. The effects on BMD and body composition showed a clear dose response. CONCLUSIONS: Treatment with oral TU led to improvement in BMD, LBM and BFM in aging men with symptomatic TD.


Subject(s)
Aging/drug effects , Body Composition/drug effects , Bone Density/drug effects , Testosterone/analogs & derivatives , Testosterone/deficiency , Absorptiometry, Photon/methods , Administration, Oral , Aged , Aged, 80 and over , Deficiency Diseases/drug therapy , Dose-Response Relationship, Drug , Double-Blind Method , Drug Administration Schedule , Follow-Up Studies , Humans , Male , Middle Aged , Muscle Strength/drug effects , Prospective Studies , Reference Values , Risk Assessment , Testosterone/administration & dosage , Treatment Outcome
11.
Urology ; 81(5): 1005-9, 2013 May.
Article in English | MEDLINE | ID: mdl-23465153

ABSTRACT

OBJECTIVE: To evaluate the relationship between the body mass index (BMI) and serum testosterone concentrations in men receiving luteinizing hormone-releasing hormone (LHRH) agonist therapy for prostate cancer. MATERIALS AND METHODS: A total of 66 white men were included in the present study. All subjects had received LHRH agonist therapy for ≥ 3 months. The BMI was calculated, and the subjects were classified as normal weight (i.e. BMI <25 kg/m(2)), overweight (BMI 25-30 kg/m(2)), or obese (BMI >30 kg/m(2)). The serum testosterone concentration was determined using the highly sensitive isotope dilution-liquid chromatography-tandem mass spectrometry technique. The sex hormone-binding globulin level was determined using an immunometric assay, and the free serum testosterone concentration was calculated. RESULTS: The median serum testosterone concentration of the patients with a BMI <25 kg/m(2) was 5.5 ng/dL. The patients with a BMI of 25-30 kg/m(2) had a median serum testosterone concentration of 3.8 ng/dL. Those patients with a BMI >30 kg/m(2) had a median concentration of 5.7 ng/dL. No significant difference in the serum testosterone concentrations among the 3 groups was found. The sex hormone-binding globulin levels declined with an increasing BMI. The concentration of free testosterone was significantly greater in the obese men. CONCLUSION: Using an ultrasensitive technique of serum testosterone measurement, the present data have shown that no difference exists in the serum testosterone concentration in the castrate range among normal weight, overweight, and obese patients receiving LHRH agonist therapy for prostate cancer. From our findings and current knowledge, more stringent follow-up or changes in dosage or dosage intervals of LHRH agonist therapy in those with a greater or high BMI is not warranted.


Subject(s)
Body Mass Index , Gonadotropin-Releasing Hormone/agonists , Leuprolide/administration & dosage , Prostatic Neoplasms/blood , Testosterone/blood , Aged , Aged, 80 and over , Antineoplastic Agents, Hormonal/administration & dosage , Antineoplastic Agents, Hormonal/therapeutic use , Biomarkers, Tumor/blood , Humans , Leuprolide/therapeutic use , Male , Mass Spectrometry , Middle Aged , Prostate-Specific Antigen/blood , Prostatic Neoplasms/drug therapy , Treatment Outcome
12.
World J Urol ; 31(2): 261-6, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23080125

ABSTRACT

PURPOSE: Prostate cells are dependent on androgens for growth and proliferation. Androgen deprivation therapy is the recommended treatment for advanced/metastatic prostate cancer. Under this therapy, prostate cancer will inevitably progress to castration resistant prostate cancer (CRPC). Despite putative castration resistance, testosterone might still play a crucial role in the progression of CRPC. The goal of this study was to determine the role of testosterone in the formation of metastases of CRPC in both in vitro and in vivo settings. METHODS: In vitro, the effect of testosterone and the non-aromatizable androgen methyltrienolone on migration, invasion and proliferation of a castration-resistant prostate cancer rat cell line (Dunning R3327-MATLyLu) was assessed using a transwell assay and a sulforhodamine B assay and immunohistochemical detection of ki67. Androgen receptor status was determined using Western blot. In vivo, Copenhagen rats were divided in four groups (males, females, castrated males and females with testosterone suppletion) and inoculated with MATLyLu cells. Tumor size was assessed daily. RESULTS: Testosterone increased cell migration and invasion in a concentration-dependent manner in vitro. Testosterone did not affect in vitro cell proliferation. No difference was shown between the effect of testosterone and methyltrienolone. In vivo, in groups with higher levels of circulating testosterone, more rats had (micro)metastases compared with groups with low levels of testosterone. No effect was observed on primary tumor size/growth. CONCLUSIONS: Despite assumed castration resistance, progression of prostate cancer is still influenced by androgens. Therefore, continuous suppression of serum testosterone in patients who show disease progression during castration therapy is still warranted.


Subject(s)
Androgens/physiology , Carcinoma/physiopathology , Prostatic Neoplasms/physiopathology , Testosterone/physiology , Androgens/pharmacology , Animals , Carcinoma/metabolism , Carcinoma/pathology , Cell Line, Tumor , Cell Movement/drug effects , Cell Movement/physiology , Cell Proliferation/drug effects , Disease Progression , Female , Male , Neoplasm Invasiveness/physiopathology , Prostatic Neoplasms/metabolism , Prostatic Neoplasms/pathology , Rats , Receptors, Androgen/metabolism , Testosterone/pharmacology
13.
Ned Tijdschr Geneeskd ; 156(44): A4667, 2012.
Article in Dutch | MEDLINE | ID: mdl-23114170

ABSTRACT

After having undergone a radical prostatectomy, 1 out of 5 men is dissatisfied about the functional results particularly because of complications like erectile dysfunction and urinary incontinence; these complications frequently do occur. During the first postoperative year, patient counselling and guidance are necessary aspects of the management of urinary incontinence and erectile dysfunction. In order to prevent irreversible erectile dysfunction, it is important that the patient resumes sexual activity soon after the operation; if necessary, a phosphodiesterase-5 (PDE-5) inhibitor or intracavernosal injection therapy may be used. Treatment of urinary incontinence in the first postoperative year consists of pelvic floor exercises and guidance on the use of collection devices, penile clamps or condom catheters. If urogenital functional disorders persist after one year, in a way that significantly affects patient's quality of life, the implantation of an erectile prosthesis or - depending on the amount of urine loss - a sling or sphincter prosthesis is indicated.


Subject(s)
Erectile Dysfunction/epidemiology , Erectile Dysfunction/therapy , Prostatectomy/adverse effects , Prostatic Neoplasms/surgery , Urinary Incontinence/epidemiology , Urinary Incontinence/therapy , Erectile Dysfunction/etiology , Exercise Therapy , Humans , Male , Penile Prosthesis , Phosphodiesterase 5 Inhibitors/therapeutic use , Prognosis , Treatment Outcome , Urinary Incontinence/etiology
14.
J Urol ; 187(5): 1601-6, 2012 May.
Article in English | MEDLINE | ID: mdl-22425112

ABSTRACT

PURPOSE: Androgen deprivation therapy by bilateral orchiectomy (surgical castration) or luteinizing hormone-releasing hormone agonist therapy (medical castration) is recommended for advanced or metastatic prostate cancer. Both methods aim at reducing serum testosterone concentrations to a castrate level which is currently defined as less than 50 ng/dl. The results of previous studies are based on testosterone immunoassays that have insufficient accuracy in the low range. In this study we reevaluated serum testosterone concentrations in men on androgen deprivation therapy using isotope dilution-liquid chromatography-tandem mass spectrometry, an accurate method of measuring testosterone in the castrate range. MATERIALS AND METHODS: Subjects underwent surgical castration (34) or received a luteinizing hormone-releasing hormone agonist (32). Serum samples were obtained more than 3 months after surgery or initiation of luteinizing hormone-releasing hormone agonist therapy. Testosterone levels were determined using isotope dilution-liquid chromatography-tandem mass spectrometry. Dihydroepiandrosterone sulfate, androstenedione, sex hormone-binding globulin and inhibin B levels were determined. RESULTS: All subjects had serum testosterone values less than 50 ng/dl and 97% had testosterone concentrations less than 20 ng/dl. Medically castrated men had significantly lower testosterone levels (median 4.0 ng/dl, range less than 2.9 to 20.2) than those surgically castrated (median 9.2 ng/dl, range less than 2.9 to 28.8, p <0.001). No difference was found in dehydroepiandrosterone sulfate, androstenedione and sex hormone-binding globulin levels between the groups, whereas inhibin B levels were significantly higher in the luteinizing hormone-releasing hormone agonist treated group. CONCLUSIONS: Using an accurate technique for testosterone measurement, subjects on luteinizing hormone-releasing hormone agonist therapy had significantly lower testosterone concentrations than men who underwent surgical castration. The clinical relevance of these findings remains to be determined.


Subject(s)
Castration , Gonadotropin-Releasing Hormone/agonists , Prostatic Neoplasms/therapy , Tandem Mass Spectrometry , Testosterone/blood , Aged , Aged, 80 and over , Androstenedione/blood , Chromatography, Liquid , Dehydroepiandrosterone Sulfate/blood , Humans , Male , Middle Aged , Prostatic Neoplasms/surgery , Retrospective Studies , Sex Hormone-Binding Globulin/analysis
15.
BJU Int ; 109(2): 176-82, 2012 Jan.
Article in English | MEDLINE | ID: mdl-21992222

ABSTRACT

Owing to inconsistencies and methodological differences, the present peer-reviewed literature lacks conclusive data on the intraprostatic levels of androgens, in particular dihydrotestosterone (DHT), in untreated benign prostatic hyperplasia (BPH) and prostate cancer. To date, no difference has been shown between DHT concentrations in normal prostatic tissue and BPH, and nor has a difference been shown in DHT concentrations between the histologically distinct regions of the prostate. Recent literature has also failed to show a consistent difference in androgen level between BPH and prostate cancer. The role of intraprostatic DHT in the pathogenesis of BPH and in the initiation and progression of prostate cancer thus remains to be established. Increased knowledge of the mechanisms of the androgenic steroid pathways in prostatic diseases, with a special focus on intraprostatic androgen levels may lead to more optimized and more personalized forms of treatment, and probably new therapeutic targets as well.


Subject(s)
Dihydrotestosterone/metabolism , Prostate/chemistry , Prostatic Hyperplasia/metabolism , Prostatic Neoplasms/metabolism , Testosterone/metabolism , Adult , Humans , Immunoassay/methods , Male , Mass Spectrometry/methods , Prostatic Neoplasms/chemistry
16.
BJU Int ; 109(2): 183-8, 2012 Jan.
Article in English | MEDLINE | ID: mdl-21992404

ABSTRACT

Androgen deprivation therapy (ADT) and 5-α-reductase (5AR) inhibition are used in the treatment of men with advanced or metastatic prostate cancer and benign prostatic hyperplasia (BPH), respectively. These drugs exert their effect by lowering androgen levels in the serum and allegedly, the prostate gland. It is, however, unknown whether (increased) intraprostatic androgen levels are associated with the pathogenesis of BPH and with the initiation and progression of prostate cancer. Also, it is unclear whether intraprostatic dihydrotestosterone (DHT) levels correlate with a response to initial hormonal therapy or with patient outcome. These uncertainties have resulted from the finding that serum testosterone levels do not necessarily reflect those in the prostate gland. Intraprostatic DHT levels of men being treated with 5AR inhibition, of those treated with ADT for hormone-naive prostate cancer, and of those with castration-resistant prostate cancer are all altered in an equivalent manner because of hormonal manipulation. Increased knowledge of the mechanisms of the androgenic steroid pathways in prostatic diseases, with a special focus on intraprostatic androgen levels, may lead to treatment that is tailored to the needs of the individual patient, and probably to new therapeutic targets as well.


Subject(s)
5-alpha Reductase Inhibitors/pharmacology , Androgen Antagonists/pharmacology , Dihydrotestosterone/metabolism , Prostatic Hyperplasia/metabolism , Prostatic Neoplasms/metabolism , Testosterone/metabolism , Adult , Contraindications , Gonadotropin-Releasing Hormone/agonists , Humans , Hypogonadism/drug therapy , Male
17.
J Sex Med ; 7(7): 2375-81, 2010 Jul.
Article in English | MEDLINE | ID: mdl-20487240

ABSTRACT

INTRODUCTION: The Committee on "Clinical Evaluation and Scales in Sexual Medicine" of the third International Consultation in Sexual Medicine reviewed current practice and new developments in the field of physiological testing in male erectile dysfunction (ED). AIM: To provide an overview of current practice and new developments in the field of diagnostic testing in male ED. METHODS: The Pubmed literature was reviewed. RESULTS: Since the 1980s of the last century, a broad array of specialized physiological tests has been used for assessing ED. The notion that ED often is an (early) symptom of generalized cardiovascular disease and the introduction of oral pharmacological therapies that are effective irrespective of etiology has reduced the application of the "classical" tests to a minimum and has shifted the scope toward tests with demonstrated reliability in cardiovascular medicine. CONCLUSIONS: (i) The clinical utility of specialized tests in the evaluation of male ED is limited to a small minority of men; (ii) the scope of physiological testing has shifted toward tests with demonstrated reliability in cardiovascular medicine.


Subject(s)
Impotence, Vasculogenic/diagnosis , Penis/blood supply , Humans , Impotence, Vasculogenic/diagnostic imaging , Impotence, Vasculogenic/psychology , Male , Neuropsychological Tests , Oxygen Consumption , Psychometrics , Ultrasonography
18.
J Sex Med ; 7(1 Pt 2): 337-48, 2010 Jan.
Article in English | MEDLINE | ID: mdl-20092443

ABSTRACT

INTRODUCTION: The challenge in the field of sexual medicine is to develop evidence-based principles for clinical evaluation and create a uniform, widely accepted diagnostic and treatment approach for all sexual problems and dysfunctions, for both genders. AIM: To provide recommendations for the broad approach for assessing sexual problems in a medical practice setting; to develop an evidence-based diagnostic and treatment algorithm for men and women with sexual dysfunctions. METHODS: The PubMed literature was reviewed. Expert opinion was based on the grading of evidence-based medical literature and the Delphi consensus process. RESULTS: The Committee determined three principles for clinical evaluation and management: (i) adoption of a patient-centered framework, with emphasis on cultural competence in clinical practice; (ii) application of evidence-based medicine in diagnostic and treatment planning; (iii) use of a unified management approach in evaluating and treating sexual problems in both men and women. The International Consultation in Sexual Medicine-5 stepwise diagnostic and treatment algorithm was developed for that purpose. According to this algorithm, sexual, medical, and psychosocial history is mandatory, whereas physical examination and laboratory tests are highly recommended in most cases. Furthermore, the Brief Sexual Symptom Checklist (BSSC) for Men and BSSC for Women, and more recently the Sexual Complaints Screener (SCS) for Men and SCS for Women, were all endorsed for screening purposes. A classification system was also defined; clinically, sexual dysfunctions are categorized in three types according to their etiology (Type I: psychogenic; Type II: organic; Type III: mixed). Final recommendations on specialized diagnostic tests were based on level of evidence. CONCLUSIONS: A unified diagnostic and management strategy in sexual medicine, irrespective of condition and gender, would improve patients' sexual well-being. It would also lead to the development of academic curricula to provide practicing physicians across specialties with the needed skills to meet contemporary patients' needs in sexual medicine health-care delivery.


Subject(s)
Guidelines as Topic , Sexual Dysfunction, Physiological/diagnosis , Sexual Dysfunctions, Psychological/diagnosis , Clinical Protocols , Cultural Competency , Female , Humans , Male , Mass Screening , Patient Care Planning/standards , Patient-Centered Care/methods , Patient-Centered Care/standards , Practice Patterns, Physicians'/organization & administration , Sexual Dysfunction, Physiological/classification , Sexual Dysfunction, Physiological/therapy , Sexual Dysfunctions, Psychological/classification , Sexual Dysfunctions, Psychological/therapy , Surveys and Questionnaires
20.
Eur J Endocrinol ; 160(5): 821-31, 2009 May.
Article in English | MEDLINE | ID: mdl-19211706

ABSTRACT

OBJECTIVE: To investigate the effects of oral testosterone undecanoate (TU) on symptoms associated with late-onset hypogonadism (LOH). Design Multicenter, randomized, double-blind, placebo-controlled. METHODS: The study was performed in 14 study centers in seven European countries. Men > or =50 years (n=322) with symptoms of hypogonadism and testosterone deficiency (calculated free testosterone <0.26 nmol/l) were randomized and treated for 12 months with placebo or oral TU 80, 160 or 240 mg/day. Primary outcome was the total score on the Aging Males' Symptoms (AMS) rating scale after six months of treatment. RESULTS: Treatment of mild-to-moderate LOH symptoms in subjects with borderline hypogonadism with oral TU resulted in an improved total AMS score at month 6, but differences between groups were not statistically significant. There was greater improvement in subjects <60 years when compared with subjects > or =60 years (P=0.001), but baseline testosterone level had no influence on treatment response. The AMS sexual symptoms domain improved with oral TU 160 mg/day at months 6 (P=0.008) and 12 (P=0.012) compared with placebo, but not with 80 and 240 mg/day. Treatment was well-tolerated and there were no between-group differences in adverse events or drop-out rates. CONCLUSIONS: In one of the largest placebo-controlled studies of testosterone therapy in LOH, oral TU did not improve total AMS score in subjects with mild-to-moderate symptoms compared with placebo, except the sexual symptom sub-domain where a modest improvement was reported with oral TU 160 mg/day.


Subject(s)
Hypogonadism/drug therapy , Testosterone/administration & dosage , Testosterone/adverse effects , Administration, Oral , Age of Onset , Aged , Algorithms , Double-Blind Method , Hormone Replacement Therapy/methods , Humans , Hypogonadism/epidemiology , Male , Middle Aged , Placebos , Quality of Life , Reference Values , Research Design , Sexual Behavior/drug effects , Testosterone/blood , Treatment Outcome
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