Publications by authors named "Martin Kathrins"

Background: Fertility preservation and subsequent third-party reproduction represents a principal pathway by which gay and bisexual cisgender men may have biologically related children. Previous studies of a similar design have commented on the availability of fertility services for sexually and gender diverse communities, but none have investigated access to the aforementioned services for this specific population.

Objectives: To assess the availability of fertility preservation and third-party reproduction services for gay and bisexual cisgender men across US fertility clinics and sperm banks.

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Fertility preservation is the process of collecting and storing oocytes, sperm, or reproductive tissue so that a person may retain their ability to have biologically related children. In instances of infertility caused by medical intervention or an underlying medical condition, this procedure is often sought by affected patient populations. U.

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Introduction: To characterize venture capital (VC) investments in urology in the past decade that represent promising innovations in early-stage companies.

Materials And Methods: A retrospective analysis of deals made between VC investors and urologic companies from January 1, 2011, through June 28, 2021, was conducted by using a financial database (PitchBook Platform, PitchBook Data Inc). Data on urologic company and investor names; company information and funding categories (surgical device, therapeutic device, drug discovery/pharmaceutical, and health care technology companies); and deal sizes (in US dollars) and dates were abstracted and aggregated.

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Study Question: What are the effects of male anxiety and depression on IVF outcomes?

Summary Answer: Men with anxiety had lower final total motile sperm counts (fTMSC) during IVF compared to men without anxiety; however, there were no differences in live birth rates (LBRs).

What Is Known Already: Studies have shown that male anxiety causes low sperm motility, worse sperm morphology, and increased DNA fragmentation, which are known to be influential factors on fertilization rates and embryo quality during IVF. However, data are lacking on whether there is a direct association between male anxiety and/or depression and IVF outcomes.

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Objective: To determine the most financially optimal surgical approach for testicular sperm retrieval for men with non-obstructive azoospermia.

Design: A decision tree was created examining five potential surgical approaches for men with non-obstructive azoospermia pursuing one cycle of intracytoplasmic sperm injection. An expected financial net loss was determined for each surgical option based on couples' willingness to pay for one cycle of intracytoplasmic sperm injection resulting in pregnancy.

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The impact of histopathological variants in stromal and glandular tissue on clinical outcomes following transurethral resection of prostate (TURP) is unexplored. We sought to evaluate the relationship between histopathological variations in TURP specimen and postoperative clinical outcomes. We performed a retrospective analysis of men undergoing initial TURP at our institution from 2017 to 2019.

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Article Synopsis
  • The study analyzed complications in men having inflatable penile prosthesis (IPP) revisions, focusing on differences between complete and partial component exchanges.
  • Men who had partial exchanges had a higher infection rate (7.1%) compared to those with complete exchanges (2.2%) and also experienced more non-infectious issues, such as pump malfunction.
  • Overall, the findings indicate that opting for a partial component revision increases the risk of complications when compared to a complete device exchange.
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Purpose Of Review: Medical therapy for idiopathic male infertility has historically been empiric and based on small observational studies rather than larger well designed clinical trials. This review is timely and relevant because of the recent publication of several studies that are less susceptible to bias because of being placebo-controlled and more highly powered.

Recent Findings: The largest proportion of recent publications covered antioxidants, with eight randomized controlled trials (RCTs) included in this review.

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Purpose: To assess whether the 5-item Frailty Index (5i-FI) predicts surgical complications of endoscopic surgery for benign prostatic obstruction (BPO) and examine the rates of these complications across BPO surgical modalities adjusting for patient frailty.

Methods: The ACS-NSQIP registry was queried for patients who underwent transurethral resection of the prostate (TURP), photoselective vaporization of the prostate (PVP), and laser enucleation of the prostate (LEP) between 2009 and 2019. Patients' frailties were estimated using the 5i-FI.

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Globozoospermia (GZ) is a rare disorder found in less than 0.1% of infertile men in which spermatozoa lack acrosomes necessary for penetration of an oocyte. While methods have been demonstrated to allow globozoospermic men to achieve a viable pregnancy with their partner, the Wold Health Organization considers identifying and reporting GZ on semen analysis to be 'important'.

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Electronic health records (EHRs) have enabled electronic documentation of a tremendous amount of clinical data. EHRs have the potential to improve communication between patients and their providers, facilitate quality improvement and outcomes research, and reduce medical errors. Conversely, EHRs have also increased clinician burnout, information clutter, and depersonalization of the interactions between patients and their providers.

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Objective: To examine the impact of men's diet on outcomes of infertility treatment with assisted reproductive technology (ART) using an empirical score representing the relation of diet with semen quality.

Design: Prospective cohort study.

Setting: Fertility center at an academic medical center.

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Objective: To report the first case of secondary azoospermia after sleeve gastrectomy.

Design: Case report.

Setting: Academic male infertility clinic.

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Purpose(s): To evaluate the relationship of men's dietary patterns with outcomes of in vitro fertilization (IVF).

Methods: This is a prospective cohort study including 231 couples with 407 IVF cycles, presented at an academic fertility center from April 2007 to April 2018. We assessed diet with a validated food frequency questionnaire and identified Dietary Pattern 1 and Dietary Pattern 2 using principal component analysis.

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Background: Publications of microsurgical testicular sperm extraction (mTESE) techniques and outcomes are heterogeneous, which may limit creation of best surgical practices.

Objective: To study the quality and heterogeneity of published mTESE outcomes via a methodological analysis.

Materials/methods: A systematic methodological analysis of all published literature on the use of mTESE in men with non-obstructive azoospermia from 1999 to the July 2020 was performed.

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One day later, there was a marked increase in the vascular supply of the testis, and numerous vessels appeared to have breached the membrana propria of the tubules. Kochar NK, Harrison RG. The effects of x-rays on the vascularization of the mouse testis.

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Metastases of advanced gastrointestinal malignancy to the bladder is a rare phenomenon. Few such cases have been reported. Here, we describe the case of a man with recurrent local gastroesophageal adenocarcinoma who presented with acute kidney injury and bilateral ureteral obstruction ultimately found to have de novo metastatic esophageal disease in the urinary bladder.

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Purpose: Little is understood about physiological and psychological correlates of erectile dysfunction among younger men. We examined prevalence and correlates of erectile dysfunction in a large U.S.

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It is well established that resident's exposure and training are of primary importance and positively correlated with patient and health quality outcomes. We aimed to compare and contrast urology residents' self-reported perspectives and attitudes toward exposure and education of andrology and male infertility during residency in both the United States and Europe. We performed a cross-sectional design study using a survey that was distributed to a representative sample of American and European urology residents.

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Background: Azoospermia is present in 10% of men presenting with infertility and surgical sperm retrieval rates for men with azoospermia due to spermatogenic dysfunction remain low. We investigated the incidence of failed fresh IVF cycles due to inability to obtain sperm and describe predictors for subsequent IVF.

Methods: A national IVF database was used to identify fresh IVF cycles in which there was failure to obtain sperm.

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Reports from the manned space flights to date have not clarified or mentioned changes in number of type of spermatozoa. Testicular tissue has not been biopsied in the astronauts. -Cockett et al.

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