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1.
Hum Reprod ; 39(2): 303-309, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38140699

RESUMO

Fertility restoration using autologous testicular tissue transplantation is relevant for infertile men surviving from childhood cancer and, possibly, in men with absent or incomplete spermatogenesis resulting in the lack of spermatozoa in the ejaculate (non-obstructive azoospermia, NOA). Currently, testicular tissue from pre-pubertal boys extracted before treatment with gonadotoxic cancer therapy can be cryopreserved with good survival of spermatogonial stem cells. However, strategies for fertility restoration, after successful cancer treatment, are still experimental and no clinical methods have yet been developed. Similarly, no clinically available treatments can help men with NOA to become biological fathers after failed attempts of testicular surgical sperm retrieval. We present a case of a 31-year-old man with NOA who had three pieces of testis tissue (each ∼2 × 4 × 2 mm3) extracted and cryopreserved in relation to performing microdissection testicular sperm extraction (mTESE). Approximately 2 years after mTESE, the thawed tissue pieces were engrafted in surgically created pockets bilaterally under the scrotal skin. Follow-up was performed after 2, 4, and 6 months with assessment of reproductive hormones and ultrasound of the scrotum. After 6 months, all engrafted tissue was extracted and microscopically analyzed for the presence of spermatozoa. Furthermore, parts of the extracted tissue were analyzed histologically and by immunohistochemical analysis. Active blood flow in the engrafted tissue was demonstrated by doppler ultrasound after 6 months. No spermatozoa were found in the extracted tissue. Histological and immunohistochemical analysis demonstrated graft survival with intact clear tubules and normal cell organization. Sertoli cells and spermatocytes with normal morphology were located near the basement membrane. MAGE-A and VASA positive spermatogonia/spermatocytes were detected together with SOX9 positive Sertoli cells. Spermatocytes and/or Sertoli cells positive for γH2AX was also detected. In summary, following autologous grafting of frozen-thawed testis tissue under the scrotal skin in a man with NOA, we demonstrated graft survival after 6 months. No mature spermatozoa were detected; however, this is likely due to the pre-existing spermatogenic failure.


Assuntos
Azoospermia , Testículo , Adulto , Humanos , Masculino , Criança , Testículo/patologia , Sêmen , Espermatozoides/patologia , Espermatogônias , Células de Sertoli , Azoospermia/cirurgia , Azoospermia/patologia , Recuperação Espermática
2.
Spinal Cord ; 59(2): 151-158, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32665708

RESUMO

STUDY DESIGN: Cohort study OBJECTIVES: The purpose of this study was to evaluate the performance of a re-engineered device (Ferticare 2.0), which is replacing the previous standard (Ferticare 1.0) for penile vibratory stimulation in men with spinal cord injury. Most men with spinal cord injury are anejaculatory, requiring medical assistance to obtain their semen. Penile vibratory stimulation is generally recognized as the standard of care for semen retrieval in these anejaculatory men. SETTING: Major Research University in Miami, Florida, USA. METHODS: The Ferticare 2.0 device was applied to 15 men with spinal cord injury in a three-step protocol simulating normal use. Step 1: one device (2.5 mm amplitude, 100 Hz) was applied to the glans penis for 2 min. Step 2: If no ejaculation occurred, the amplitude was increased to 4.0 mm (100 Hz) and the device similarly applied. Step 3: If no ejaculation occurred, two devices, each 2.5 mm and 100 Hz were applied to the dorsum and frenulum of the glans penis. Participants at risk for autonomic dysreflexia were pretreated with sublingual nifedipine (20 mg), 15 min prior to stimulation. Blood pressure and other symptoms of autonomic dysreflexia were monitored. Participants answered a questionnaire about their experience with the device. RESULTS: Thirteen of 15 participants ejaculated with the device. No adverse events occurred. All participants commented they would recommend the device to other men with spinal cord injury. CONCLUSIONS: A re-engineered device, the Ferticare 2.0, is safe and effective for inducing ejaculation in men with spinal cord injury.


Assuntos
Disreflexia Autonômica , Traumatismos da Medula Espinal , Ejaculação , Humanos , Masculino , Pênis , Traumatismos da Medula Espinal/complicações , Traumatismos da Medula Espinal/terapia , Vibração
3.
Andrologia ; 52(10): e13733, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32628291

RESUMO

The aim of this study was to evaluate patient-reported outcomes of Collagenase Clostridium Histolyticum (CCHi) for Peyronie's Disease. Patients treated with 2-4 cycles of CCHi between 01/2016 and 08/2018 were asked to fill out the "bother domain" of the Peyronie's Disease Questionnaire (PDQ) at scheduled appointments for injections. CCHi cycles involved two injections (0.58 mg) separated by 48-72 hr. During the study, 34 patients were treated, seven patients were excluded due to incomplete baseline values. Mean (standard deviation) PDQ bother domain baseline score was 11.1 (2.6). ANOVA demonstrated statistically significant effects of injections (p < .001) with a decrease in PDQ bother domain scores 6 weeks after the 1st cycle (9.9 [3.3], p = .013), 6 weeks after the 2nd cycle (8.2 [4.0], p = .009) and 6 weeks after the 3rd cycle (6.5 [3.6], p < .001). After 2-4 cycles of CCHi treatment, patients reported changes in penile curvature as "Worse" (0), "No Change" (2), "Little decrease" (10), Decrease (10) and "Significant decrease" (4). After completion of CCHi treatment, 82% of patients still reported that vaginal intercourse was difficult or impossible. Patients with Peyronie's Disease undergoing CCHi treatment reported statistically significant decreases in PDQ bother domain scores. However, most patients still report difficulty with intercourse after treatment.


Assuntos
Colagenase Microbiana , Induração Peniana , Humanos , Injeções Intralesionais , Masculino , Marketing , Medidas de Resultados Relatados pelo Paciente , Induração Peniana/tratamento farmacológico , Pênis , Estudos Prospectivos , Resultado do Tratamento
4.
Curr Urol Rep ; 19(7): 47, 2018 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-29774436

RESUMO

PURPOSE OF REVIEW: Men with spinal cord injury (SCI) commonly suffer from erectile dysfunction and ejaculatory dysfunction. The literature regarding the causes and treatment of these two important problems was reviewed. RECENT FINDINGS: Many of the erectile dysfunction treatments applied to able bodied individuals are also useful in the SCI population, although there are differences in the goals and results of treatment. Ejaculatory dysfunction can be treated with either penile vibratory stimulation or electroejaculation with high success rates. Pregnancies are possible, but poor quality sperm quality in male SCI patients leads to pregnancy rates lower than is observed in the able-bodied population. Although effective treatments are available for erectile and ejaculatory dysfunction in men with SCIs, many challenges remain in optimizing the treatment of these individuals.


Assuntos
Disfunção Erétil/terapia , Infertilidade Masculina/terapia , Traumatismos da Medula Espinal/complicações , Disfunção Erétil/etiologia , Humanos , Infertilidade Masculina/etiologia , Masculino
6.
Curr Urol Rep ; 18(11): 88, 2017 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-28921390

RESUMO

PURPOSE OF REVIEW: For many diseases that place a large burden on our health care system, men often have worse health outcomes than women. As the largest single provider of health care to men in the USA, the Veterans Health Administration (VA) has the potential to serve as leader in the delivery of improved men's health care to address these disparities. RECENT FINDINGS: The VA system has made recent strides in improving benefits for aspects of men's health that are traditionally poorly covered, such as treatment for male factor infertility. Despite this, review of Quality Enhancement Research Initiatives (QUERIs) within the VA system reveals few efforts to integrate disparate areas of care into a holistic men's health program. Policies to unify currently disparate aspects of men's health care will ensure that the VA remains a progressive model for other health care systems in the USA.


Assuntos
Prestação Integrada de Cuidados de Saúde/normas , Serviços de Saúde/normas , Saúde do Homem/normas , Melhoria de Qualidade , United States Department of Veterans Affairs/normas , Saúde dos Veteranos/normas , Prestação Integrada de Cuidados de Saúde/economia , Serviços de Saúde/economia , Saúde Holística/economia , Saúde Holística/normas , Humanos , Masculino , Saúde do Homem/economia , Melhoria de Qualidade/economia , Estados Unidos , United States Department of Veterans Affairs/economia , Saúde dos Veteranos/economia
7.
Int J Clin Pract ; 71(5)2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28439994

RESUMO

INTRODUCTION: Sildenafil has been evaluated in >16 000 men with erectile dysfunction (ED) in double-blind, placebo-controlled trials. AIM: To assess efficacy and safety of sildenafil in ED by ethnicity (white, black Asian) and age (≤45, 46-60, ≥61 years). METHODS: Data were pooled from 38 double-blind, placebo-controlled, flexible-dose trials. Most had starting sildenafil doses of 50 mg once daily, ~1 hour before sexual activity, with adjustment to 100 or 25 mg as needed. MAIN OUTCOME MEASURES: Change from baseline in International Index of Erectile Function erectile function (IIEF-EF) domain score assessed with analysis of covariance and a Global Assessment Question (GAQ; "Did the treatment improve your erections?") at endpoint assessed with logistic regression analysis. RESULTS: 4120 and 3714 men received sildenafil and placebo, respectively (2740 and 2671 White; 407 and 385 Black; 973 and 658 Asian). For sildenafil vs. placebo groups, overall treatment differences for IIEF-EF domain and GAQ were significant for each ethnic and age group (P<.0001); significant treatment-by-ethnicity and treatment-by-age interactions were also observed for change in IIEF-EF domain scores (P<.05), with differences significantly greater for White vs. Black (P<.0001), White vs. Asian (P=.0163), and Asian vs. Black (P=.0036) men. A significant treatment-by-ethnicity interaction was observed for GAQ (P=.0004). The OR comparison for GAQ was significantly greater (P=.0001) with sildenafil vs. placebo in White (OR=11.2) or Asian (OR=12.4) men vs. Black men (OR=5.1). Adverse-event rates were generally similar, with some age variations. CONCLUSIONS: Sildenafil is effective and well-tolerated regardless of ethnicity or age; however, treatment effects can vary.


Assuntos
Disfunção Erétil/tratamento farmacológico , Citrato de Sildenafila/uso terapêutico , Agentes Urológicos/uso terapêutico , Adulto , Negro ou Afro-Americano , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Asiático , Esquema de Medicação , Disfunção Erétil/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento , População Branca
8.
BJU Int ; 114(1): 111-7, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24127838

RESUMO

OBJECTIVE: To examine the effect of penile vibratory stimulation (PVS) in the preservation and restoration of erectile function and urinary continence in conjunction with nerve-sparing radical prostatectomy (RP). PATIENTS AND METHODS: The present study was conducted between July 2010 and March 2013 as a randomized prospective trial at two university hospitals. Eligible participants were continent men with an International Index of Erectile Function-5 (IIEF-5) score of at least 18, scheduled to undergo nerve-sparing RP. Patients were randomized to a PVS group or a control group. Patients in the PVS group were instructed in using a PVS device (FERTI CARE(®) vibrator). Stimulation was performed at the frenulum once daily by the patients in their own homes for at least 1 week before surgery. After catheter removal, daily PVS was re-initiated for a period of 6 weeks. Participants were evaluated at 3, 6 and 12 months after surgery with the IIEF-5 questionnaire and questions regarding urinary bother. Patients using up to one pad daily for security reasons only were considered continent. The study was registered at http://clinicaltrials.gov/ (NCT01067261). RESULTS: Data from 68 patients were available for analyses (30 patients randomized to PVS and 38 patients randomized to the control group). The IIEF-5 score was highest in the PVS group at all time points after surgery with a median score of 18 vs 7.5 in the control group at 12 months (P = 0.09), but the difference only reached borderline significance. At 12 months, 16/30 (53%) patients in the PVS group had reached an IIEF-5 score of at least 18, while this was the case for 12/38 (32%) patients in the control group (P = 0.07). There were no significant differences in the proportions of continent patients between groups at 3, 6 or 12 months. At 12 months 90% of the PVS patients were continent, while 94.7% of the control patients were continent (P = 0.46). CONCLUSION: The present study did not document a significant effect of PVS. However, the method proved to be acceptable for most patients and there was a trend towards better erectile function with PVS. More studies are needed to explore this possible effect further.


Assuntos
Disfunção Erétil/prevenção & controle , Incontinência Urinária/prevenção & controle , Idoso , Disfunção Erétil/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prostatectomia/efeitos adversos , Prostatectomia/métodos , Recuperação de Função Fisiológica , Resultado do Tratamento , Incontinência Urinária/etiologia
9.
Fertil Steril ; 2024 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-38992744

RESUMO

IMPORTANCE: Advances in the treatment of childhood cancer have significantly improved survival rates, with more than 80% of survivors reaching adulthood. However, gonadotoxic cancer treatments endanger future fertility, and prepubertal males have no option to preserve fertility by sperm cryopreservation. In addition, boys with cryptorchidism are at risk of compromised fertility in adulthood. OBJECTIVE: To investigate current evidence for male fertility restoration strategies, explore barriers to clinical implementation, and outline potential steps to overcome these barriers, a scoping review was conducted. This knowledge synthesis is particularly relevant for prepubertal male cancer survivors and boys with cryptorchidism. EVIDENCE REVIEW: The review was conducted after the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews criteria and previously published guidelines and examined studies using human testis tissue of prepubertal boys or healthy male adults. A literature search in PubMed was conducted, and 72 relevant studies were identified, including in vivo and in vitro approaches. FINDINGS: In vivo strategies, such as testis tissue engraftment and spermatogonial stem cell transplantation, hold promise for promoting cell survival and differentiation. Yet, complete spermatogenesis has not been achieved. In vitro approaches focus on the generation of male germ cells from direct germ cell maturation in various culture systems, alongside human induced pluripotent stem cells and embryonic stem cells. These approaches mark significant advancements in understanding and promoting spermatogenesis, but achieving fully functional spermatozoa in vitro remains a challenge. Barriers to clinical implementation include the risk of reintroducing malignant cells and introduction of epigenetic changes. CONCLUSION: Male fertility restoration is an area in rapid development. On the basis of the reviewed studies, the most promising and advanced strategy for restoring male fertility using cryopreserved testis tissue is direct testis tissue transplantation. RELEVANCE: This review identifies persistent barriers to the clinical implementation of male fertility restoration. However, direct transplantation of frozen-thawed testis tissue remains a promising strategy that is on the verge of clinical application.

11.
BJU Int ; 112(7): 998-1008, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23826962

RESUMO

The pathophysiology of erectile dysfunction after radical prostatectomy (RP) is believed to include neuropraxia, which leads to temporarily reduced oxygenation and subsequent structural changes in penile tissue. This results in veno-occlusive dysfunction, therefore, penile rehabilitation programmes focus on tissue oxygenation. Animal studies support the use of phosphodiesterase type 5 inhibitors (PDE5Is) after cavernous nerve damage but results from human studies are contradictory. The largest study to date found no long-term effect of either daily or on-demand PDE5I administration after RP compared with placebo. The effects of prostaglandin and vacuum erection devices are questionable and high-quality studies are lacking. Better documentation for current penile rehabilitation and/or better rehabilitation protocols are needed. One must be careful not to repeat the statement that penile rehabilitation improves erectile function after RP so many times that it becomes a truth even without the proper scientific backing.


Assuntos
Disfunção Erétil/etiologia , Disfunção Erétil/reabilitação , Ereção Peniana , Prostatectomia/efeitos adversos , Prostatectomia/reabilitação , Alprostadil/administração & dosagem , Animais , Ensaios Clínicos como Assunto , Disfunção Erétil/fisiopatologia , Humanos , Masculino , Inibidores da Fosfodiesterase 5/uso terapêutico , Processos Psicoterapêuticos , Vácuo
12.
Int J Impot Res ; 35(3): 234-241, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36274189

RESUMO

The removal of non-pathogenic foreskin from the penis of healthy neonates and infants for non-religious reasons is routinely practiced in many parts of the world. High level data from well-designed randomized controlled trials of circumcision in neonates and infants does not guide clinical practice. Reliable counts of immediate and short term circumcision complications are difficult to estimate. Emerging evidence suggests routine neonatal circumcision could lead to long term psychological, physical, and sexual complications in some men. The stigma associated with discussing circumcision complications creates a prevalence paradox where the presence of significant circumcision complications is higher than reported. Prior to the Internet, there were very few forums for men from diverse communities, who were troubled about their circumcision status, to discuss and compare stories. To investigate the long term consequences of circumcision, we reviewed 135 posts from 109 individual users participating in a circumcision grief subsection of Reddit, an internet discussion board. We identified three major categories of complications: physical such as pain during erections and lost sensitivity, psychological such as anxiety and violation of autonomy, and sexual such as feeling that the sexual experience was negatively altered or being unable to complete a sexual experience. We also identified a "discovery process" where some men described coming into awareness of their circumcision status. These findings suggest that neonatal circumcision can have significant adverse consequences for adult men. The removal of normal foreskin tissue should be limited to adult men who choose the procedure for cosmetic reasons or when medically indicated.


Assuntos
Circuncisão Masculina , Pênis , Masculino , Adulto , Recém-Nascido , Humanos , Autorrelato , Pênis/cirurgia , Circuncisão Masculina/efeitos adversos , Circuncisão Masculina/métodos , Comportamento Sexual , Prepúcio do Pênis/cirurgia
13.
J Sex Med ; 9(9): 2467-74, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22759540

RESUMO

INTRODUCTION: A single-armed, prospective, multicenter international study evaluated the redesigned Coloplast Titan One Touch Release (OTR) pump inflatable penile prosthesis. The OTR pump has a unique release valve that permits deflation of the implant with one squeeze of opposing touch pads. AIMS: To assess the impact of a new penile prosthesis design, the Titan OTR, on patient ease of operation. Furthermore, to assess patient satisfaction, surgeon acceptance, and the ease with which patients were trained in device operation in the clinic setting. METHODS: A total of 113 eligible patients from eight centers were recruited from men presenting with erectile dysfunction without prior prosthetic implantation. The subjects had a mean age of 61 years, and had a number of comorbidities, including diabetes (31.9%), hypertension (34.5%), and Peyronie's disease (23.9%). All underwent implantation of the study device. MAIN OUTCOME MEASURES: Questionnaires were used to capture patient satisfaction as well as physician feedback on ease of implantation and patient education. A paired analysis was completed for patient satisfaction at 6 (N = 96) and 12 (N = 90) months. RESULTS: Overall satisfaction with the device was 90.6% and 90.0% at 6 and 12 months, respectively. The primary end point, ease of deflation, was seen in 70.8% and 73.3% at these two time points, with the 12-month value statistically better than historical controls. Physicians overwhelmingly reported straightforward/simple intraoperative product preparation (97.3%) and equivalent or easier training compared with their previous pump of choice (96.4%). Adverse events for all subjects (N = 113) included removal of the device in four cases (3.5%) for infection and one case for chronic pain (0.8%). CONCLUSIONS: The Titan OTR represents an advance in penile prosthetic technology that is well accepted by patients and physicians. The study design allowed for realistic evaluation of the new technology aimed at enhancing clinical outcomes.


Assuntos
Atitude do Pessoal de Saúde , Satisfação do Paciente , Prótese de Pênis , Competência Clínica , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Desenho de Prótese
14.
Eur Urol ; 82(4): 377-384, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35599183

RESUMO

BACKGROUND: Surgical extraction of testicular spermatozoa is needed in men with nonobstructive azoospermia (NOA) who wish to become biological fathers. Based on available uncontrolled studies with unspecific patient selection, microdissection testicular sperm extraction (mTESE), having a sperm retrieval rate (SRR) of 50%, is considered the most efficient sperm retrieval procedure. However, no randomized clinical trials for comparison of different sperm retrieval procedures exist. Testicular sperm aspiration (TESA) is simple and commonly used, and we hypothesized that this technique using multiple needle passes would give similar SRRs to mTESE. OBJECTIVE: To compare mTESE and multiple needle-pass TESA in men with NOA. DESIGN, SETTING, AND PARTICIPANTS: A randomized clinical trial was performed between June 2017 and April 2021, with inclusion of 100 men with NOA from four centers in Denmark and Sweden. All participants received treatment at the same institution. INTERVENTION: Participants were randomized to mTESE (n = 49) or multiple needle-pass TESA (n = 51). Patients with failed multiple needle-pass TESA proceeded directly to salvage mTESE. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The primary outcome was SRR. Secondary outcomes included complications and changes in reproductive hormones after surgery. RESULTS AND LIMITATIONS: Spermatozoa were retrieved in 21/49 (43%) men after mTESE and in 11/51 (22%) men after multiple needle-pass TESA (rate difference -0.21; 95% confidence interval -0.39 to -0.03; p = 0.02). The combined SRR for multiple needle-pass TESA + salvage mTESE was 15/51 (29%). No complications occurred after multiple needle-pass TESA only, while 5/89 (6%) men having mTESE experienced a complication requiring surgical intervention. Overall, no statistically significant differences in reproductive hormones were observed between groups after 6 mo. Limitations include the low number of patients in secondary outcome data. CONCLUSIONS: In direct comparison, SRR was higher in mTESE than in multiple needle-pass TESA. PATIENT SUMMARY: Men with azoospermia need surgical extraction of spermatozoa to become biological fathers. In this randomized trial, we compared two surgeries (microdissection testicular sperm extraction [mTESE] and testicular sperm aspiration [TESA]) and found that mTESE gives a higher sperm retrieval rate than multiple needle-pass TESA.


Assuntos
Azoospermia , Recuperação Espermática , Azoospermia/complicações , Azoospermia/cirurgia , Feminino , Hormônios , Humanos , Masculino , Microdissecção/métodos , Estudos Retrospectivos , Sêmen , Espermatozoides , Testículo/cirurgia
15.
J Sex Med ; 8(9): 2640-6, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21679300

RESUMO

INTRODUCTION: Within a study evaluating the redesigned AMS 700MS inflatable penile prosthesis (IPP) (American Medical Systems, Minnetonka, MN, USA), one site used new length measurement technique (NLMT), a more aggressive dilation and measurement of the corpora cavernosa on a stretched penis, to address penile shortening. AIM: To compare cylinder size and patient satisfaction, between a NLMT and traditional sizing for IPP implantation. METHODS: Fourteen men received IPPs using NLMT, and 55 with traditional sizing. Nationwide sales data from 2005 to 2008 for AMS 700 IPPs was obtained from AMS for comparison; additional surveys captured patient satisfaction. MAIN OUTCOME MEASURE: Demographic data, cylinder sizes, and patient satisfaction were compared between the NLMT and standard techniques. RESULTS: The Fisher's exact test (P<0.001) showed a significant difference between the cylinder sizes with NLMT as compared with standard techniques. Of the 14 NLMT patients, 71.4% (10) received cylinders>21 cm long and 28.6% (4) received cylinders<21 cm long, as compared with 12.7% (7) and 87.3% (48), respectively, for patients implanted by traditional techniques. There were ethnic differences between the samples: 42.9% (6) NLMT patients were of African-American descent, as compared with 10.9% (6) in the standard technique group. However, longer cylinders were utilized more often, with 83.3% (5) of African-Americans treated using the NLMT; as compared with 33.3% (2) of the standard technique group. Nationwide data reveal 12.3% of patients routinely receive 21 cm cylinders. At 6 months postimplantation, patient satisfaction with NLMT was no different than standard techniques. There were no distal erosions, complications, infections, or pain concerns reported through 24 months among the NLMT patients. CONCLUSIONS: The NLMT resulted in a larger number of subjects implanted with larger cylinders. Satisfaction with performance and complication rates for NLMT patients was comparable to those implanted using standard techniques.


Assuntos
Satisfação do Paciente , Implante Peniano/métodos , Fatores Etários , Disfunção Erétil/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Implante Peniano/instrumentação , Prótese de Pênis
16.
J Clin Med ; 10(16)2021 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-34441963

RESUMO

Intracytoplasmic sperm injection (ICSI) has allowed reproduction options through assisted reproductive technologies (ARTs) for men with no spermatozoa within the ejaculate (azoospermia). In men with non-obstructive azoospermia (NOA), the options for spermatozoa retrieval are testicular sperm extraction (TESE), testicular sperm aspiration (TESA), or micro-surgical sperm extraction (microTESE). At the initial time of spermatozoa removal from the testis, spermatozoa are immobile. Independent of the means of spermatozoa retrieval, the subsequent steps of removing spermatozoa from seminiferous tubules, determining spermatozoa viability, identifying enough spermatozoa for oocyte injections, and isolating viable spermatozoa for injection are currently performed manually by laboratory microscopic dissection and collection. These laboratory techniques are highly labor-intensive, with yield unknown, have an unpredictable efficiency and/or success rate, and are subject to inter-laboratory personnel and intra-laboratory variability. Here, we consider the potential utility, benefits, and shortcomings of developing technologies such as motility induction/stimulants, microfluidics, dielectrophoresis, and cell sorting as andrological laboratory add-ons to reduce the technical burdens and variabilities in viable spermatozoa isolation from testicular samples in men with NOA.

17.
Urology ; 147: 68-73, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32916191

RESUMO

OBJECTIVE: To investigate the prevalence of burnout among Danish and American urologists. METHODS: An email invitation was sent with 2 reminders spaced by 14 days intervals to members of the Danish Urological Association and urologists at the University of Michigan to participate in a survey consisting of the 2 item Maslach Burnout Inventory. Burnout was defined as reporting "once a week," "a few times a week," or "everyday" on either the emotional exhaustion or depersonalization domains of the Maslach Burnout Inventory. Two open-ended questions were added to the survey for the Danish urologists, these were then qualitatively analyzed using thematic analysis. Categorial variables were compared using Chi square analysis. RESULTS: The response rate was 193 of 387 (49.9%) for the Danish urologists and 43 of 64 (67.1%) among American urologists. The prevalence of burnout for the American and Danish cohorts was identified in 4 (44.4%) of the American residents and 10 (32.3%) of the American attendings compared to 2 (3%) of Danish residents and 16 (12.7%) of Danish attendings. The difference in rate of burnout between Danish residents and attendings was statistically significant (P= .03). Burnout was statistically significantly different between American and Danish residents (P<.01) and attendings (P <.01). There was a statistically significant difference in rates of burnout between American and the Danish female urologists (P = .02) and similarly among male urologists (P <.01). CONCLUSION: This study demonstrated low rates of burnout among Danish urologists and a significant difference in burnout between residents and attendings from Michigan compared to Danish residents and attendings.


Assuntos
Esgotamento Profissional/epidemiologia , Urologia , Adolescente , Adulto , Idoso , Dinamarca/epidemiologia , Feminino , Humanos , Masculino , Michigan/epidemiologia , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
18.
J Assist Reprod Genet ; 27(1): 3-12, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20012685

RESUMO

Male factor infertility is the sole cause of infertility in approximately 20% of infertile couples, with an additional 30% to 40% secondary to both male and female factors. Current means of evaluation of male factor infertility remains routine semen analysis including seminal volume, pH, sperm concentration, motility, and morphology. However, approximately 15% of patients with male factor infertility have a normal semen analysis and a definitive diagnosis of male infertility often cannot be made as a result of routine semen analysis. Attention has focused on the role of sperm nuclear DNA integrity in male factor infertility. Here we review the structure of human sperm chromatin, the etiology and mechanisms of sperm DNA damage, current tests available to assess sperm DNA integrity, and effect of sperm DNA integrity on reproductive outcomes.


Assuntos
Dano ao DNA/genética , Infertilidade Masculina/genética , Espermatozoides/metabolismo , Cromatina/metabolismo , Humanos , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/metabolismo , Masculino , Técnicas de Reprodução Assistida , Motilidade dos Espermatozoides/genética , Resultado do Tratamento
19.
Eur Urol Open Sci ; 22: 74-78, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34337480

RESUMO

BACKGROUND: A postvasectomy semen analysis (PVSA) is recommended 8-16 wk after vasectomy to ensure azoospermia. Patient compliance with submitting a semen sample for PVSA has historically been low. To increase patient compliance, a policy change was made to schedule patients for PVSA appointments instead of a previous "drop-in" option. OBJECTIVE: To compare patient compliance for PVSA when scheduling appointments as opposed to a "drop-in" appointment 8-16 wk after the procedure. DESIGN SETTING AND PARTICIPANTS: Ethical approval was obtained to retrospectively evaluate patients undergoing vasectomy. A total of 400 patients were evaluated, 200 consecutive patients before and 200 after the policy change. Patients were excluded from analysis if they had other surgeries at the same time of vasectomy or if the vasectomy was a repeat procedure. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Percent of patients attending PVSA and time to PVSA were assessed. Nominal data were compared using chi-square analysis and interval data were compared using Student unpaired t test. RESULTS AND LIMITATIONS: Thirteen patients were excluded from analysis: six before and seven after the policy change. Compliance rates were similar before and after the policy change (144/194 [74%] and 154/193 [80%], p = 0.19). There was no difference in the time from vasectomy to PVSA between groups (before: mean [standard deviation] 69 [55] d vs after: 74 (63) d, p = 0.44). This study is limited by its retrospective design. CONCLUSIONS: Scheduling appointments for PVSA has no impact on compliance rates or the time between vasectomy and semen analysis when compared with "drop-in" appointments. PATIENT SUMMARY: Sterility after a vasectomy is guaranteed by delivering a semen sample. Many men do not deliver this sample, and sterility cannot be guaranteed. This study found that scheduling appointments did not increase the number of men who delivered a semen sample compared with "drop-in" appointments.

20.
World J Mens Health ; 38(3): 298-307, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31081295

RESUMO

Torsion of the spermatic cord is a urological emergency that must be treated with acute surgery. Possible long-term effects of torsion on testicular function are controversial. This review aims to address the impact of testicular torsion (TT) on the endocrine- and exocrine-function of the testis, including possible negative effects of torsion on the function of the contralateral testis. Testis tissue survival after TT is dependent on the degree and duration of TT. TT has been demonstrated to cause long-term decrease in sperm motility and reduce overall sperm counts. Reduced semen quality might be caused by ischemic damage and reperfusion injury. In contrast, most studies find endocrine parameters to be unaffected after torsion, although few report minor alterations in levels of gonadotropins and testosterone. Contralateral damage after unilateral TT has been suggested by histological abnormalities in the contralateral testis after orchiectomy of the torsed testis. The evidence is, however, limited as most human studies are small case-series. Theories as to what causes contralateral damage mainly derive from animal studies making it difficult to interpret the results in a human context. Large long-term follow-up studies are needed to clearly uncover changes in testicular function after TT and to determine the clinical impact of such changes.

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