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Zhang TR, Able C, Ramasamy R, Kohn TP. United States vasectomy incidence rises following the reversal of Roe v. Wade in a national clinical and claims database. Fertil Steril 2023:S0015-0282(23)00234-0. [PMID: 36967058 DOI: 10.1016/j.fertnstert.2023.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/04/2023] [Accepted: 03/20/2023] [Indexed: 03/28/2023]
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Nugent LF, Haney NM, Kohn TP. Home sperm testing-increasing uses for direct-to-consumer tests. Fertil Steril 2023; 119:218. [PMID: 36502933 DOI: 10.1016/j.fertnstert.2022.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
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Agrawal P, Singh SM, Kohn J, Kohn TP, Clifton M. Sleep Disorders Are Associated with Female Sexual Desire and Genital Response - A U.S. Claims Database Analysis. Urology 2023; 172:79-83. [PMID: 36455681 DOI: 10.1016/j.urology.2022.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To assess the association of common sleep disorders with female sexual dysfunction. MATERIALS AND METHODS We conducted a cross-sectional analysis using the TriNetX Diamond Network. Adult women diagnosed with insomnia, obstructive sleep apnea, or circadian rhythm sleep disorder were assessed to determine the association with female sexual dysfunction, hypoactive sexual desire disorder, female orgasmic disorder, and female sexual arousal disorder. A propensity-score matched control cohort for age, race, ethnicity, tobacco use, outpatient service utilization, obesity, hyperlipidemia, diabetes mellitus, hypertensive disease, ischemic heart disease, and surgical procedures on the female genital system was generated, excluding those with any sleep disorders, sleep deprivation, or morbid obesity with alveolar hypoventilation. All cohorts excluded those with any antidepressant or antipsychotic prescriptions. RESULTS Our query yielded 1,317,491 women diagnosed with sleep apnea, 1,538,567 with insomnia, and 58,902 with circadian rhythm sleep disorder. Women with sleep apnea and insomnia had higher odds of hypoactive sexual desire disorder, female sexual arousal disorder, and female orgasmic disorder compared to matched controls. Women with sleep apnea, insomnia, or circadian rhythm sleep disorder all had a significantly higher odds of female sexual dysfunction compared to matched controls. CONCLUSION In this large cross-sectional analysis, sleep disorders were strongly associated with female sexual dysfunction. It is thus crucial for providers to screen for poor sleep when conducting a thorough evaluation for sexual dysfunction in women to diagnose highly prevalent sleep disorders and improve overall health.
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Rostom M, Ramasamy R, Kohn TP. History of testosterone therapy through the ages. Int J Impot Res 2022; 34:623-625. [PMID: 35075296 DOI: 10.1038/s41443-021-00493-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/17/2021] [Accepted: 10/28/2021] [Indexed: 11/08/2022]
Abstract
The symptoms of testosterone deficiency have been known throughout history with evidence dating back to the twenty-first century BCE when men were castrated to be docile and obedient servants. Experimentation ingesting mammalian testicles began during the reign of the Roman empire and continued through the nineteenth century with claims that the substance found within these testicles could improve energy, erectile function, and urination. In the twentieth century, studies transplanting animal testes onto other castrated animals suggested that a substance produced in the testicle was responsible for systemic effects. Then in 1929, Adolf Butendant was the first to isolate testosterone and shortly after synthetic formulations of testosterone were created. While testosterone therapy is an important treatment for testosterone deficiency, the history of testosterone therapy has not been without abuse from doping scandals in the twentieth century and the use of testosterone therapy for conversion therapy and treatment of psychiatric disease. Today, there are clear and appropriate clinical uses of testosterone set by the American Urological Association to treat clinically significant testosterone deficiency. Still, even with such guidelines, the potential for misuse and abuse remains high in physicians and athletes. There is a long history that has led to the development of testosterone therapy and when used appropriately can significantly improve the quality of life for men with testosterone deficiency.
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Kohn TP, Nguyen HMT, Rajanahally S, Hellstrom W, Hsieh T, Raheem OA. Global Trends in Prevalence, Treatments, and Costs of Penile Prosthesis for Erectile Dysfunction in Men. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bedrick BS, Kohn TP, Pecker LH, Christianson MS. Fertility preservation for pediatric patients with hemoglobinopathies: Multidisciplinary counseling needed to optimize outcomes. Front Endocrinol (Lausanne) 2022; 13:985525. [PMID: 36353243 PMCID: PMC9638952 DOI: 10.3389/fendo.2022.985525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/30/2022] [Indexed: 01/19/2023] Open
Abstract
Hemoglobinopathies are autosomal recessive disorders that occur when genetic mutations negatively impact the function of hemoglobin. Common hemoglobinopathies that are clinically significant include sickle cell disease, alpha thalassemia, and beta thalassemia. Advancements in disease-modifying and curative treatments for the common hemoglobinopathies over the past thirty years have led to improvements in patient quality of life and longevity for those who are affected. However, the diseases, their treatments and cures pose infertility risks, making fertility preservation counseling and treatment an important part of the contemporary comprehensive patient care. Sickle cell disease negatively impacts both male and female infertility, primarily by testicular failure and decreased ovarian reserve, respectively. Fertility in both males and females with beta thalassemia major are negatively impacted by iron deposition due to chronic blood transfusions. Hematopoietic stem cell transplant (HSCT) is currently the only curative treatment for SCD and transfusion dependent beta thalassemia. Many of the conditioning regimens for HSCT contain chemotherapeutic agents with known gonadotoxicity and whole-body radiation. Although most clinical studies on toxicity and impact of HSCT on long-term health do not evaluate fertility, gonadal failure is common. Male fertility preservation modalities that exist prior to gonadotoxic treatment include sperm banking for pubertal males and testicular cryopreservation for pre-pubertal boys. For female patients, fertility preservation options include oocyte cryopreservation and ovarian tissue cryopreservation. Oocyte cryopreservation requires controlled ovarian hyperstimulation (COH) with ten to fourteen days of intensive monitoring and medication administration. This is feasible once the patient has undergone menarche. Follicular growth is monitored via transvaginal or transabdominal ultrasound, and hormone levels are monitored through frequent blood work. Oocytes are then harvested via a minimally invasive approach under anesthesia. Complications of COH are more common in patients with hemoglobinopathies. Ovarian hyperstimulation syndrome creates a greater risk to patients with underlying vascular, pulmonary, and renal injury, as they may be less able to tolerate fluids shifts. Thus, it is critical to monitor patients undergoing COH closely with close collaboration between the hematology team and the reproductive endocrinology team. Counseling patients and families about future fertility must take into consideration the patient's disease, treatment history, and planned treatment, acknowledging current knowledge gaps.
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Gabrielson AT, Meilchen CK, Kohn JR, Kohn TP. AUTHOR REPLY. Urology 2021; 158:31-32. [PMID: 34895631 DOI: 10.1016/j.urology.2021.05.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wang SL, Bedrick BS, Kohn TP. What is the role of varicocelectomy in infertile men with clinical varicoceles and elevated sperm DNA fragmentation? Fertil Steril 2021; 116:657-658. [PMID: 34462098 DOI: 10.1016/j.fertnstert.2021.06.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 06/29/2021] [Indexed: 10/20/2022]
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Gabrielson AT, Meilchen CK, Kohn JR, Kohn TP. The COVID-19 Residency Application Cycle Did Not Affect Geographic Dispersal Patterns Among Applicants Entering the Urology Match: A Quantitative Mapping Study. Urology 2021; 158:26-32. [PMID: 34324912 DOI: 10.1016/j.urology.2021.05.093] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/11/2021] [Accepted: 05/24/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To assess whether pandemic-related restrictions with video-based interviewing increased geographic clustering of urology applicants matching at a residency program near where they were raised or attended medical school. MATERIALS AND METHODS We utilized publicly available data from the urology match to compare dispersal patterns between applicants matching during the COVID-19 application cycle (2021) and those matching in the 5 prior application cycles (2016-2020). Variables included home state, undergraduate institution, medical school, and residency. Latitudes and longitudes were obtained for each institution and home state. The primary endpoint was distance (miles, as the most direct path) between medical school and residency program. We also assessed dispersal patterns by American Urological Association section. RESULTS Of the 1965 applicants matching to a urology program between 2016 and 2021, medical school was identified for 1956 (99.7%) applicants, undergraduate program for 1551 (79%) applicants, and home state for 1351 (69%) applicants. Comparing the COVID-19 application cycle to the 5 prior application cycles, there was no significant difference in the median distance between medical school and residency, undergraduate university and residency, or home state and residency. Similarly, there was no significant difference in the proportion of applicants matching at their home institution, matching from medical schools without a home urology program, matching from medical schools with a historically low volume of urology applicants (<1 matched applicant per year), or matching from a D.O. PROGRAM CONCLUSION Virtual interviewing and the loss of in-person clinical rotations did not significantly alter dispersal patterns or hamper an applicant's ability to match at program outside their geographic region.
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Rabinowitz MJ, Kohn TP, Ellimoottil C, Alam R, Liu JL, Herati AS. The Impact of Telemedicine on Sexual Medicine at a Major Academic Center During the COVID-19 Pandemic. Sex Med 2021; 9:100366. [PMID: 34049265 PMCID: PMC8240353 DOI: 10.1016/j.esxm.2021.100366] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/15/2021] [Accepted: 03/20/2021] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Telemedicine has the potential to improve access to care; however, its utility in the field of sexual medicine remains in question. AIM To examine the importance of video visits for the treatment of male sexual medicine at our academic center during the period of peak telemedicine use in April 2020. METHODS We collected and compared deidentified data from all nonprocedure, adult outpatient encounters conducted as either office visits in April 2019 (n = 1,949) or video visits in April 2020 (n = 608). The primary International Classification of Diseases codes (ICD-10) labeled as diagnoses from all encounters were collected, with most encounters linked to several disease codes (n = 4,584). Demographic data were also collected. We performed comparative analyses on Stata (College Station, TX, USA) with significance set at α = .05. MAIN OUTCOME MEASURES Disease codes were categorized based on their use and classification in urological care and the proportion that each category made up within the outpatient practice was calculated. RESULTS In comparison to the office visits, which took place in April 2019, male sexual medicine visits in April 2020, during the peak of telemedicine use, made up a significantly larger overall share of our practice (P = .012), defined by relative rises in encounters pertaining to male hypogonadism, infertility, penile abnormalities, and testicular abnormalities. Outpatients seen over video visits were also younger than outpatients seen during the previous year over office visits (58.9 vs 60.8, P = .008). Further, race and ethnicity characteristics in the outpatient population were unaffected during the period of telemedicine use. CONCLUSIONS During the period of historically high telemedicine use following the SARS-CoV-2 outbreak, encounters associated with male sexual medicine made up a significantly larger portion of our outpatient practice. Although the full influence of the COVID-19 pandemic cannot be delineated, our findings suggest telemedicine use is compatible with the field of sexual medicine. Rabinowitz MJ, Kohn TP, Ellimoottil C, et al. The Impact of Telemedicine on Sexual Medicine at a Major Academic Center During the COVID-19 Pandemic. Sex Med 2021;9:100366.
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Kohn TP, Rajanahally S, Hellstrom WJG, Hsieh TC, Raheem OA. Global Trends in Prevalence, Treatments, and Costs of Penile Prosthesis for Erectile Dysfunction in Men. Eur Urol Focus 2021; 8:803-813. [PMID: 34034995 DOI: 10.1016/j.euf.2021.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/26/2021] [Accepted: 05/12/2021] [Indexed: 11/04/2022]
Abstract
CONTEXT Penile prosthesis is a durable and effective treatment for erectile dysfunction (ED). Even as other treatment options for ED have been brought to market, penile prosthetic surgery remains a mainstay for urologists treating ED. No systematic study has yet summarized the global trends in penile prosthetic surgery. OBJECTIVE To systematically review studies of trends in penile prosthetic surgery to determine global movements in implantation rates, malleable versus inflatable prosthetic surgery, inpatient versus outpatient implantation surgery, proportion of men with ED undergoing penile prosthetic surgery, and prosthetic cost. EVIDENCE ACQUISITION A systematic review of MEDLINE, EMBASE, Cochrane Library, and ClinicalTrials.gov was performed for studies assessing trends in penile prosthetic surgeries and costs associated with penile prosthetic device and inclusive surgical costs. EVIDENCE SYNTHESIS Twenty-seven studies were identified during the systematic review, comprising 447,204 penile prosthetic surgeries reported from 1988 to 2019. A trend analysis demonstrates that rates of penile prosthetic surgery declined dramatically in the late 1980s and early 1990s, but have demonstrated modest growth since the mid-2000s. Outpatient inflatable penile prosthetic surgery has strongly trended upward. Costs of penile prosthetic device have matched the rate of inflation, but inclusive surgical cost has radically outpaced inflation. Growth has mainly been seen in the USA, with a more modest global growth. CONCLUSIONS Penile prosthesis remains a viable option for the treatment of ED. Trends such as outpatient surgery and inflatable penile prosthesis placement may be driving the recent steady growth of penile prosthetic surgeries, but surging inclusive surgical cost may present a barrier for some patients without insurance coverage. PATIENT SUMMARY Penile prostheses continue to be an important treatment for erectile dysfunction. While the volume of penile prosthetic surgeries dropped when phosphidiesterase-5 inhibitors became available, prosthetic surgery is becoming more patient centric, as seen by increases in inflatable prosthetic placement and outpatient surgery.
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Alam R, Rabinowitz MJ, Kohn TP, Peña VN, Liu JL, Bhanji Y, Herati AS. Resident involvement in the prostatic urethral lift: implementing innovative technology in an academic setting. Asian J Androl 2021; 23:616-620. [PMID: 33885003 PMCID: PMC8577266 DOI: 10.4103/aja.aja_21_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Adoption of the prostatic urethral lift (PUL) as a treatment for benign prostatic hyperplasia highlights the importance of training residents with novel technology without compromising patient care. This study examines the effect of resident involvement during PUL on patient and procedural outcomes. Retrospective chart review was conducted on all consecutive PUL cases performed by a single academic urologist between October 2017 and November 2019. Trainees in post-graduate year (PGY) 1-3 are considered junior residents, while those in PGY 4-6 are senior residents. The International Prostate Symptom Score (IPSS) and quality of life (QOL) scores were used to measure outcomes. Simple and mixed-effects linear regression models were used to compare differences. There were 110 patients with a median age of 66.4 years. Residents were involved in 73 cases (66.4%), and senior residents were involved in 31 of those cases. Resident involvement was not associated with adverse perioperative outcomes with respect to the number of implants fired, the percentage of implants successfully placed, or the postoperative catheterization rate. After adjustment for confounding factors, junior residents were associated with significantly longer case length compared to the attending alone (+12.6 min, P = 0.003) but senior residents were not (+2.4 min, P = 0.59). IPSS and QOL scores were not significantly affected by resident involvement (P = 0.12 and P = 0.21, respectively). The presence of surgeons-in-training, particularly those in the early stages, prolongs PUL case length but does not appear to have an adverse impact on patient outcomes.
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Kohn TP, Peña V, Redett Iii RJ, Burnett AL. Penile allotransplantation: early outcomes from reported cases and survivorship considerations. Minerva Urol Nephrol 2021; 73:333-341. [PMID: 33781015 DOI: 10.23736/s2724-6051.21.04144-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Vascular composite allografts are at the forefront of medical and surgical innovation. With this new technique and the ability to transplant a face, hands, an abdominal wall, a uterus, or even a penis, patients can undergo operations that may drastically improve their quality of life. Although this process presents significant opportunities it is not always an easy road and requires significant upfront counseling and life-long immunosuppression. Often the recovery course is long, with functionality taking months to years to gain. Immunosuppression must be used to prevent rejection of the allograft although it has serious long-term side-effects. Only five patients have undergone penile allotransplantation but reported outcomes from these small numbers have nonetheless offered significant lessons with each patient. While the operation is still in its infancy, it is certain that shared experiences by surgical teams will yield improved outcomes in the future.
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Softness K, Kohn TP, Perecman A, Carrasquillo R. Access to male fertility preservation information and referrals at National Cancer Institute Cancer Centers. Andrologia 2021; 53:e14020. [PMID: 33687100 DOI: 10.1111/and.14020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 12/01/2022] Open
Abstract
Cancer treatment can lead to infertility, which is a significant source of financial and emotional distress for cancer patients and survivors. Given that future fertility and sexual function are critical quality of life issues, we hypothesise that access to subspecialist care is not uniformly distributed. Therefore, we sought to identify access gaps in male sexual health and infertility care at NCI cancer centres across US Census Regions. All 64 clinical NCI cancer centre websites were examined for language related to male sexual health and fertility. A phone-based survey was used to establish cancer centre referral patterns to andrologists and sperm banks. We utilised the Society for the Study of Male Reproduction member directory to determine geographic locations for andrologists relative to each centre. We found that the presence of information regarding male sexual health information was not associated with region. The presence of andrologists within 5-miles of a CC was significantly higher in the Northeast compared to all other census regions. Our work describes the access gap in fertility services at NCI cancer centres and how this differs by region of the country. These data can inform patients, and encourage centres to provide improved access to oncofertility care.
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Rabinowitz MJ, Huffman PJ, Haney NM, Kohn TP. Y-Chromosome Microdeletions: A Review of Prevalence, Screening, and Clinical Considerations. Appl Clin Genet 2021; 14:51-59. [PMID: 33603438 PMCID: PMC7886244 DOI: 10.2147/tacg.s267421] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/18/2021] [Indexed: 11/24/2022] Open
Abstract
Deletions within the male-specific region of the Y-chromosome, known as Y-Chromosome Microdeletions (YCMs), are present in as many as 5% and 10% of severe oligospermic and azoospermic men, respectively. These microdeletions are distinguished by which segment of the Y chromosome is absent, identified as AZFa (the most proximal segment), AZFb (middle), and AZFc (distal). The reported prevalence of YCMs within the world’s populations of infertile men displays vast heterogeneity, ranging from less than 2% to over 24% based on region and ethnicity. AZFc is the most commonly identified YCM, and its phenotypic presentation provides for the highest chance for fertility through artificial reproductive techniques. Conversely, deletions identified in the subregions of AZFa, AZFb, or any combination of regions containing these segments, are associated with low probabilities of achieving pregnancy. A putative mechanism explaining this discrepancy lies within the expression of autosomal, DAZ-like genes which could serve to “rescue” wild type AZFc gene expression and hence spermatogenesis. Nevertheless, recent reports challenge this dogma and stress the importance of further analysis when an AZFb deletion is detected. The screening thresholds to determine which oligospermic and azoospermic men are tested for potential YCMs has been recently contested. More recent literature supports lowering the threshold from 5 million sperm/mL of ejaculate to 1 million/mL as the frequency of YCMs in men with sperm concentrations between 1 and 5 million sperm/mL is very low (~0.8%). As such, subsequent guidelines should recommend a lower screening threshold. While YCMs are extremely common globally, the understanding of their clinical significance in the field remains scattered and without consensus. Furthermore, very little is currently known about partial deletions within the AZFc region, such as b1/b3, b2/b3, and gr/gr. Hence, this review aimed to summarize and discuss modern trends in the epidemiology, screening guidelines, and clinical considerations pertaining to YCMs.
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Scovell JM, Benz K, Samarska I, Kohn TP, Hooper JE, Matoso A, Herati AS. Association of Impaired Spermatogenesis With the Use of Immune Checkpoint Inhibitors in Patients With Metastatic Melanoma. JAMA Oncol 2021; 6:1297-1299. [PMID: 32556068 DOI: 10.1001/jamaoncol.2020.1641] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Rabinowitz MJ, Alam R, Liu JL, Kohn TP, Bhanji Y, Peña VN, Herati AS. Prostatic Urethral Lift in Patients With Obstructive Median Lobes: A Single Surgeon Experience at an Academic Center. Urology 2021; 154:237-242. [PMID: 33493510 DOI: 10.1016/j.urology.2021.01.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To examine the long-term efficacy of prostatic urethral lift (PUL) for treating men, with or without an obstructive median lobe (OML), who suffer from lower urinary tract symptoms attributed to benign prostatic hyperplasia. MATERIALS AND METHODS A retrospective review was performed on all consecutive PUL cases with or without OML from October 2017 to November 2019 by a single academic surgeon. Outcomes were measured using the International Prostate Symptoms Survey (IPSS) with quality of life (QoL) scores. Comparative testing and mixed-effects linear regression analysis were utilized with significance set at α = 0.05 and performed with Stata (College Station, TX). RESULTS A total of 110 PUL procedures were performed on 106 patients (4 repeat surgeries) with a median age of 66.5 (interquartile range: 60.4-73.7). Twenty-three patients (21.7%) had an OML. Following PUL, patients in both groups showed significant improvements in IPSS (P <.001) and QoL (P <.001) scores. When stratifying by OML and controlling for confounding, IPSS scores in both groups displayed statistically significant improvement at follow-up visits, with no statistically significant intergroup difference (P = .32). The same held true for QoL improvements, with no statistically significant difference between groups (P = .18). The presence of an OML resulted in minimal effects on perioperative outcomes and complications but required significantly more implants (P = .008). CONCLUSION PUL is a minimally invasive procedure effective at reducing lower urinary tract symptoms and improving the lives of men with benign prostatic hyperplasia without incurring risks of serious complications. These improvements were equivalent and upheld in patients who presented with OML.
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Hanson BM, Kohn TP, Pastuszak AW, Scott RT, Cheng PJ, Hotaling JM. Round spermatid injection into human oocytes: a systematic review and meta-analysis. Asian J Androl 2021; 23:363-369. [PMID: 33565426 PMCID: PMC8269823 DOI: 10.4103/aja.aja_85_20] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Many azoospermic men do not possess mature spermatozoa at the time of surgical sperm extraction. This study is a systematic review and meta-analysis evaluating outcomes following round spermatid injection (ROSI), a technique which utilizes immature precursors of spermatozoa for fertilization. An electronic search was performed to identify relevant articles published through October 2018. Human cohort studies in English involving male patients who had round spermatids identified and used for fertilization with human oocytes were included. Fertilization rate, pregnancy rate, and resultant delivery rate were assessed following ROSI. Meta-analysis outcomes were analyzed using a random-effects model. Data were extracted from 22 studies involving 1099 couples and 4218 embryo transfers. The fertilization rate after ROSI was 38.7% (95% confidence interval [CI]: 31.5%-46.3%), while the pregnancy rate was 3.7% (95% CI: 3.2%-4.4%). The resultant delivery rate was low, with 4.3% of embryo transfers resulting in a delivery (95% CI: 2.3%-7.7%). The pregnancy rate per couple was 13.4% (95% CI: 6.8%-19.1%) and the resultant delivery rate per couple was 8.1% (95% CI: 6.1%-14.4%). ROSI has resulted in clinical pregnancies and live births, but success rates are considerably lower than those achieved with mature spermatozoa. While this technique may be a feasible alternative for men with azoospermia who decline other options, couples should be aware that the odds of a successful delivery are greatly diminished and the prognosis is relatively poor.
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McBride JA, Kohn TP, Mazur DJ, Lipshultz LI, Coward RM. Sperm retrieval and intracytoplasmic sperm injection outcomes in men with cystic fibrosis disease versus congenital bilateral absence of the vas deferens. Asian J Androl 2021; 23:140-145. [PMID: 32930103 PMCID: PMC7991824 DOI: 10.4103/aja.aja_48_20] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recent data suggest that cystic fibrosis transmembrane conductance regulator (CFTR) gene alterations negatively impact male fertility beyond obstruction. We sought to compare gene alterations, sperm retrieval rates, and intracytoplasmic sperm injection (ICSI) outcomes among men with cystic fibrosis (CF) disease and congenital bilateral absence of the vas deferens (CBAVD) only. We retrospectively evaluated all men who underwent surgical sperm retrieval at two academic, high-volume andrology centers from 2010 to 2018. Only men with documented CFTR alterations and obstructive azoospermia from either CBAVD or CF were included. Differences between groups for CFTR abnormality, sperm retrieval, and ICSI outcomes were statistically analyzed. Overall,39 patients were included with 10 in the CF and 29 in the CBAVD groups. Surgical sperm retrieval rates were significantly lower in the CF group for sperm concentration (14.8 × 106 ml-1vs 61.4 × 106 m-1, P = 0.02) and total motile sperm count (2.9 million vs 11.4 million, P = 0.01). This difference was only predicted by homozygous delta F508 CFTR mutations (P < 0.05). The CF group also demonstrated a significantly higher rate of rescue testicular sperm extraction (70.0% vs 27.6%, P < 0.03) and lower fertilization rate with ICSI (32.5% vs 68.9%, P < 0.01). In conclusion, those with CF demonstrated lower sperm quality, greater difficulty with sperm retrieval, and worse ICSI outcomes compared with CBAVD-only patients. Homozygous delta F508 CFTR mutations appear to significantly impair spermatogenesis and sperm function.
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Abstract
Non-obstructive azoospermia is a distinct diagnosis within male infertility in which no sperm is found in the ejaculate as a result of spermatogenesis failure. Because of the increased prevalence of genetic abnormalities in men with non-obstructive azoospermia, male infertility guidelines recommend screening for karyotype abnormalities and Y chromosome microdeletions in this population. Numerous karyotype abnormalities may be present resulting in impaired spermatogenesis, including: Klinefelter syndrome, translocations, and deletions. Y chromosome microdeletions of the AZFa, AZFb, AZFc subregions all can also result in non-obstructive azoospermia with the possibility of sperm being present if only the AZFc subregion is deleted. While these are the two genetic tests recommended by the guidelines, nearly 50%-80% of non-obstructive azoospermia has no identifiable cause and is deemed idiopathic. Several other genetic defects can lead to non-obstructive azoospermia including Kallmann syndrome, mild androgen insensitivity syndrome, and TEX11. While many additional candidate genes have been proposed, many have yet to be verified or are so infrequent in the population that screening is cost-ineffective. Much research is still required in the genetics of non-obstructive azoospermia and will require multi-institutional initiatives to better understand the genetics of condition.
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Rabinowitz MJ, Kohn TP, Peña VN, Samarska IV, Matoso A, Herati AS. Onset of azoospermia in man treated with ipilimumab/nivolumab for BRAF negative metastatic melanoma. Urol Case Rep 2020; 34:101488. [PMID: 33299797 PMCID: PMC7704337 DOI: 10.1016/j.eucr.2020.101488] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 01/09/2023] Open
Abstract
Azoospermia is classified as the complete absence of sperm in ejaculate and accounts for 10–15% of male infertility. Many anticancer drugs are known to cause defects in spermatogenesis, but the effects of immune checkpoint inhibitor cancer therapy on spermatogenesis remains largely unknown. Presented here is a normozoospermic man (60 million sperm/cc of ejaculate) who received a trial combination treatment of Ipilimumab/Nivolumab to treat BRAF negative, stage IV metastatic melanoma. Two years after the treatment, the patient presented as completely azoospermic. The patient subsequently underwent microdissection testicular sperm extraction, during which no sperm was retrieved, and sertoli-only pathology was elucidated. Normozoospermic man became azoospermic after Ipilimumab/Nivolumab treatment. Testicular biopsy revealed sertoli-only pathology. Effect of Ipilimumab/Nivolumab on spermatogenesis remains largely unknown.
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Peña V, Kohn TP. Growing evidence links male infertility and genitourinary malignancies. Fertil Steril 2020; 114:957. [DOI: 10.1016/j.fertnstert.2020.08.1411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 11/26/2022]
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Dave CN, Kohn TP, Patel HD, Arafa A, Burnett AL. Inflatable penile prosthesis outcomes after pelvic radiation. THE CANADIAN JOURNAL OF UROLOGY 2020; 27:10382-10387. [PMID: 33049191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
UNLABELLED INTRODUCTION Few studies have compared surgical outcomes after 3-piece inflatable penile prosthesis (IPP) surgery in patients exposed to pelvic radiation therapy (RT) compared to a radiation naïve control group. MATERIALS AND METHODS A total of 715 consecutive patients underwent 3-piece IPP placement between 2007-2018. There were 101 men exposed to pelvic RT before or after IPP for a variety of malignancies and 153 men met inclusion criteria for the control group, which included men undergoing IPP surgery with a history of radical prostatectomy but no exposure to pelvic RT. RESULTS Patients in the RT group had a higher body mass index (kg/m²) (28.7 versus 27.8, p = 0.003) and higher Charlson co-morbidity index score (6 versus 5; p < 0.001). At a median follow up of 5 years (IQR 2-8 years), there was an 18.4% surgical complication rate in the radiation group compared to 11.5% in the control group, though this was not statistically significant (p = 0.141). Timing of radiation, prior artificial urinary sphincter (AUS) status, co-implantation of an AUS, and brand of prosthesis were not associated with increased rate of complications. On multivariable logistic regression analysis, exposure to RT was not significantly associated with increased risks of complications (OR: 1.31; CI 0.55-3.12). CONCLUSIONS This study shows no significant increase in risk of surgical complication in patients exposed to pelvic RT and supports the use of IPP in men with a history of RT and refractory erectile dysfunction.
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Peña V, Kohn TP, Bhanji Y, Alam R, Liu J, Gabrielson AT, Rabinowitz MJ, Herati AS. TESTICULAR ULTRASOUND AS A PROGNOSTIC FACTOR FOR IMPROVEMENT IN SEMEN PARAMETERS AFTER VARICOCELECTOMY. Fertil Steril 2020. [DOI: 10.1016/j.fertnstert.2020.08.1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gabrielson AT, Kohn JR, Sparks HT, Clifton MM, Kohn TP. Proposed Changes to the 2021 Residency Application Process in the Wake of COVID-19. ACADEMIC MEDICINE : JOURNAL OF THE ASSOCIATION OF AMERICAN MEDICAL COLLEGES 2020; 95:1346-1349. [PMID: 32459675 PMCID: PMC7268839 DOI: 10.1097/acm.0000000000003520] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The COVID-19 pandemic has brought unique challenges to the delivery of undergraduate medical education, particularly for current third-year medical students who are preparing to apply to residency. In mid-March, medical schools suspended all clinical rotations for the remainder of the 2019-2020 academic year. As such, third-year medical students may not be able to complete sufficient clinical experiences to make important career choices before they have to submit their residency applications. While the decision to suspend clinical rotations was necessary to protect students, specialty organizations and residency programs must mitigate the deficits in students' clinical education caused by the COVID-19 pandemic.In this Perspective, the authors identify potential challenges for third-year medical students and advocate for solutions to improve the residency application process for students and programs. First, they propose delaying the date that programs can access applicant data through the Electronic Residency Application Service, thereby affording students more time to complete clinical experiences, solidify their specialty decision, and strengthen their residency application. Second, the authors recommend a restriction on the number of visiting rotations that students are expected to complete to allow for a more equitable distribution of these important experiences. Third, they suggest that program directors from each specialty agree on a maximum number of applications per applicant (based on historical data) to curb an upsurge in applications that may stem from the unique circumstances created by COVID-19 without causing applicants undue stress. Lastly, the authors advocate that residency programs develop infrastructure to conduct video-based interviews and engage students through virtual networking events.Amidst the unique environment created by COVID-19, the authors urge governing bodies, specialty organizations, and residency programs to consider these recommendations to improve the efficiency and reduce the stress surrounding the 2021 Match.
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