141 research outputs found
Case Report: Disseminated herpes simplex virus complicated by hemophagocytic lymphohistiocytosis in a neonate
Neonatal herpes simplex virus (HSV) infection carries a high mortality rate due to its potential to cause disseminated disease involving multiple organ systems, which can rapidly progress to shock and death if not promptly treated. In rare cases, neonates may mount an uncontrolled inflammatory response leading to hemophagocytic lymphohistiocytosis (HLH), a severe hyperinflammatory syndrome. We present a case of neonatal HSV infection complicated by HLH, highlighting the challenges of managing both conditions concurrently. Our therapeutic approach demonstrated a reduction in systemic inflammation and viral load; however, despite these efforts, the patient developed multiorgan failure and ultimately died from the initial disease process. This case underscores the severity of neonatal HSV infection and emphasizes the critical role pediatricians play in early identification of transmission risk factors and prevention strategies
Evaluation of acute myeloid leukemia induction regimens in elderly patients with unfavorable risk cytogenetics that are candidates for intensive remission therapy
Pituitary Lesions, Obesity, and Mesenteric Lipomas in Insulin-Resistant Horses
The aim of the current study was to identify associations between pituitary lesions, body condition scores, and mesenteric lipomas in horses with insulin resistance. Necropsy examinations were performed following euthanasia in 30 adult horses designated as insulin resistant (n = 11) or insulin sensitive (n = 19). Insulin sensitivity was determined using the insulin-modified frequently sampled intravenous glucose tolerance test and resting insulin concentrations. At necropsy, mesenteric lipomas were measured. The pituitary and adrenal glands, pancreas, and liver were evaluated histologically; pituitary glands were scored based on published criteria. Insulin-resistant horses had significantly higher pituitary scores (p = 0.0035) and body condition scores (p = 0.0001), even when adjusting for age, and a greater frequency of mesenteric lipomas (p = 0.014) and greater lipoma area (p = 0.0332) than insulin-sensitive horses. Regardless of insulin status, horses with pituitary scores ≥3 (diffuse hyperplasia; n = 25) had higher body condition scores (p = 0.0313) and a greater frequency of mesenteric lipomas (p \u3c 0.0002) than those with lower pituitary scores. High body condition score was not correlated to an increased frequency of mesenteric lipomas. Detection of higher pituitary scores in insulin-resistant horses suggested an association between insulin resistance and pituitary morphology. Horses in the insulin-resistant group and those with high pituitary scores had higher body condition scores and a greater frequency of mesenteric lipomas. These horses might be at increased risk for lipoma-associated colic
Global Practice Patterns in the Evaluation of Non-Obstructive Azoospermia: Results of a World-Wide Survey and Expert Recommendations
Purpose: Non-obstructive azoospermia (NOA) represents the persistent absence of sperm in ejaculate without obstruction, stemming from diverse disease processes. This survey explores global practices in NOA diagnosis, comparing them with guidelines and offering expert recommendations. Materials and Methods: A 56-item questionnaire survey on NOA diagnosis and management was conducted globally from July to September 2022. This paper focuses on part 1, evaluating NOA diagnosis. Data from 367 participants across 49 countries were analyzed descriptively, with a Delphi process used for expert recommendations. Results: Of 336 eligible responses, most participants were experienced attending physicians (70.93%). To diagnose azoospermia definitively, 81.7% requested two semen samples. Commonly ordered hormone tests included serum follicle-stimulating hormone (FSH) (97.0%), total testosterone (92.9%), and luteinizing hormone (86.9%). Genetic testing was requested by 66.6%, with karyotype analysis (86.2%) and Y chromosome microdeletions (88.3%) prevalent. Diagnostic testicular biopsy, distinguishing obstructive azoospermia (OA) from NOA, was not performed by 45.1%, while 34.6% did it selectively. Differentiation relied on physical examination (76.1%), serum hormone profiles (69.6%), and semen tests (68.1%). Expectations of finding sperm surgically were higher in men with normal FSH, larger testes, and a history of sperm in ejaculate. Conclusions: This expert survey, encompassing 367 participants from 49 countries, unveils congruence with recommended guidelines in NOA diagnosis. However, noteworthy disparities in practices suggest a need for evidence-based, international consensus guidelines to standardize NOA evaluation, addressing existing gaps in professional recommendations. Copyright © 2024 Korean Society for Sexual Medicine and Andrology
Utility of Antioxidants in the Treatment of Male Infertility: Clinical Guidelines Based on a Systematic Review and Analysis of Evidence
It is widely accepted that oxidative stress plays an important role in the pathophysiology of male infertility and that antioxidants could have a significant role in the treatment of male infertility. The main objectives of this study are: 1) to systematically review the current evidence for the utility of antioxidants in the treatment of male infertility; and 2) propose evidence-based clinical guidelines for the use of antioxidants in the treatment of male infertility. A systematic review of the available clinical evidence was performed, with articles published on Scopus being manually screened. Data extracted included the type of antioxidant used, the clinical conditions under investigation, the evaluation of semen parameters and reproductive outcomes. The adherence to the Cambridge Quality Checklist, Cochrane Risk of Bias for randomized controlled trials (RCTs), CONSORT guidelines and JADAD score were analyzed for each included study. Further, we provided a Strength Weakness Opportunity Threat (SWOT) analysis to analyze the current and future value of antioxidants in male infertility. Of the 1,978 articles identified, 97 articles were included in the study. Of these, 52 (53.6%) were uncontrolled (open label), 12 (12.4%) unblinded RCTs, and 33 (34.0%) blinded RCTs, whereas 44 (45.4%) articles tested individual antioxidants, 31 (32.0%) a combination of several products in variable dosages, and 22 (22.6%) registered antioxidant products. Based on the published evidence, we 1) critically examined the necessity of additional double-blind, randomized, placebo-controlled trials, and 2) proposed updated evidence-based clinical guidelines for antioxidant therapy in male infertility. The current systematic review on antioxidants and male infertility clearly shows that antioxidant supplementation improves semen parameters. In addition, it provides the indications for antioxidant treatment in specific clinical conditions, including varicocele, unexplained and idiopathic male infertility, as well as in cases of altered semen quality
Global Andrology Forum (GAF) Clinical Guidelines on the Management of Infertile Men with Varicocele
PURPOSE: Varicocele is among the most common reversible causes of male infertility. Although varicocele is prevalent and there is a growing body of literature on the subject, there are still numerous debates surrounding the matter. This study presents Global Andrology Forum (GAF) clinical guidelines on the management of infertile men with varicocele.MATERIALS AND METHODS: A team of clinicians and reproductive experts reviewed contemporary evidence on all aspects of varicocele, including systematic reviews, meta-analyses, and the results of the GAF global survey of practices. They then formulated expert statements and recommendations, subject to a modified Delphi process until a consensus was reached. The final statements and recommendations were rated using the GRADE system.RESULTS: A total of 31 statements and recommendations on the evaluation and management of varicocele were introduced and scored by 24 experts. All experts agreed with the final statements. Varicocele is a significant contributor to male infertility. Its diagnosis is based mainly on physical examination, although imaging can be used in certain cases. Clinical varicocele associated with abnormal sperm parameters is the primary unanimous indication of varicocele repair. However, other indications can still be considered, and recommendations for a tailored approach to controversial situations have been presented. There is inadequate evidence on the use of medical therapy for varicocele.CONCLUSIONS: These clinical guidelines on the management of infertile men with varicocele, based on the GAF surveys, systematic reviews, and meta-analyses, point out the pivotal importance of varicocele in modern Andrology. Continued research is crucial to improving diagnostic accuracy and treatment outcomes, ultimately enhancing reproductive health for men with varicocele. Therefore, the current guidelines allow clinicians to develop effective management strategies for a common issue and address practical questions where evidence is lacking.</p
Global Andrology Forum (GAF) Clinical Guidelines on the Management of Non-obstructive Azoospermia:Bridging the Gap between Controversy and Consensus
PURPOSE: Non-obstructive azoospermia (NOA), defined as the absence of sperm in the ejaculate due to testicular failure, is observed in 5% to 15% of infertile men and accounts for two-thirds of azoospermia cases. The management of NOA is marked by significant controversy and global variation in diagnostic and therapeutic approaches, highlighting the crucial need for well-designed and standardized clinical practice guidelines. We present comprehensive graded clinical practice recommendations and statements for diagnosing and treating NOA, aiming to establish standardized strategies that can globally help guide practitioners in their practice.MATERIALS AND METHODS: A comprehensive literature review was conducted to gather evidence on the epidemiological, diagnostic, and therapeutic aspects of NOA. The Global Andrology Forum (GAF) recommendations were developed through the collaboration of a global panel of experts using the Delphi method and surveys to achieve consensus. Statements were graded according to the Oxford Centre for Evidence-Based Medicine "GRADE" classification as either "Strong" or "Weak." Statements receiving at least 80% expert consensus were graded as "Strong," while others were categorized as "Weak."RESULTS: The GAF has formulated a total of 49 recommendations and statements on the diagnosis and treatment of NOA, including 21 for diagnosis and 28 for treatment. The recommendations and statements were evaluated and graded by a panel of 48 GAF experts from 25 countries worldwide. The majority of experts (60.5%) had more than 10 years of clinical experience in managing NOA.CONCLUSIONS: The GAF guidelines address discrepancies in NOA management across diverse clinical settings and provide comprehensive graded recommendations to guide clinicians in its diagnosis and treatment. Developed and graded by a large worldwide panel of experts, the current guidelines present simplified, high-standard strategies that can be seamlessly integrated into the daily global practice, offering practitioners a clear framework for managing NOA.</p
Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility
Despite advances in the field of male reproductive health, idiopathic male infertility, in which a man has altered semen
characteristics without an identifiable cause and there is no female factor infertility, remains a challenging condition to diagnose
and manage. Increasing evidence suggests that oxidative stress (OS) plays an independent role in the etiology of male
infertility, with 30% to 80% of infertile men having elevated seminal reactive oxygen species levels. OS can negatively affect
fertility via a number of pathways, including interference with capacitation and possible damage to sperm membrane and
DNA, which may impair the sperm’s potential to fertilize an egg and develop into a healthy embryo. Adequate evaluation of
male reproductive potential should therefore include an assessment of sperm OS. We propose the term Male Oxidative Stress
Infertility, or MOSI, as a novel descriptor for infertile men with abnormal semen characteristics and OS, including many
patients who were previously classified as having idiopathic male infertility. Oxidation-reduction potential (ORP) can be a
useful clinical biomarker for the classification of MOSI, as it takes into account the levels of both oxidants and reductants
(antioxidants). Current treatment protocols for OS, including the use of antioxidants, are not evidence-based and have the
potential for complications and increased healthcare-related expenditures. Utilizing an easy, reproducible, and cost-effective
test to measure ORP may provide a more targeted, reliable approach for administering antioxidant therapy while minimizing
the risk of antioxidant overdose. With the increasing awareness and understanding of MOSI as a distinct male infertility diagnosis,
future research endeavors can facilitate the development of evidence-based treatments that target its underlying cause
Male Oxidative Stress Infertility (MOSI):proposed terminology and clinical practice guidelines for management of idiopathic male infertility
Despite advances in the field of male reproductive health, idiopathic male infertility, in which a man has altered semen characteristics without an identifiable cause and there is no female factor infertility, remains a challenging condition to diagnose and manage. Increasing evidence suggests that oxidative stress (OS) plays an independent role in the etiology of male infertility, with 30% to 80% of infertile men having elevated seminal reactive oxygen species levels. OS can negatively affect fertility via a number of pathways, including interference with capacitation and possible damage to sperm membrane and DNA, which may impair the sperm's potential to fertilize an egg and develop into a healthy embryo. Adequate evaluation of male reproductive potential should therefore include an assessment of sperm OS. We propose the term Male Oxidative Stress Infertility, or MOSI, as a novel descriptor for infertile men with abnormal semen characteristics and OS, including many patients who were previously classified as having idiopathic male infertility. Oxidation-reduction potential (ORP) can be a useful clinical biomarker for the classification of MOSI, as it takes into account the levels of both oxidants and reductants (antioxidants). Current treatment protocols for OS, including the use of antioxidants, are not evidence-based and have the potential for complications and increased healthcare-related expenditures. Utilizing an easy, reproducible, and cost-effective test to measure ORP may provide a more targeted, reliable approach for administering antioxidant therapy while minimizing the risk of antioxidant overdose. With the increasing awareness and understanding of MOSI as a distinct male infertility diagnosis, future research endeavors can facilitate the development of evidence-based treatments that target its underlying cause
Post-vasectomy semen analysis: Optimizing laboratory procedures and test interpretation through a clinical audit and global survey of practices
Purpose: The success of vasectomy is determined by the outcome of a post-vasectomy semen analysis (PVSA). This article describes a step-by-step procedure to perform PVSA accurately, report data from patients who underwent post vasectomy semen analysis between 2015 and 2021 experience, along with results from an international online survey on clinical practice. Materials and Methods: We present a detailed step-by-step protocol for performing and interpretating PVSA testing, along with recommendations for proficiency testing, competency assessment for performing PVSA, and clinical and laboratory scenarios. Moreover, we conducted an analysis of 1,114 PVSA performed at the Cleveland Clinic’s Andrology Laboratory and an online survey to understand clinician responses to the PVSA results in various countries. Results: Results from our clinical experience showed that 92.1% of patients passed PVSA, with 7.9% being further tested. A total of 78 experts from 19 countries participated in the survey, and the majority reported to use time from vasectomy rather than the number of ejaculations as criterion to request PVSA. A high percentage of responders reported permitting unprotected intercourse only if PVSA samples show azoospermia while, in the presence of few non-motile sperm, the majority of responders suggested using alternative contraception, followed by another PVSA. In the presence of motile sperm, the majority of participants asked for further PVSA testing. Repeat vasectomy was mainly recommended if motile sperm were observed after multiple PVSA’s. A large percentage reported to recommend a second PVSA due to the possibility of legal actions. Conclusions: Our results highlighted varying clinical practices around the globe, with controversy over the significance of non-motile sperm in the PVSA sample. Our data suggest that less stringent AUA guidelines would help improve test compliance. A large longitudinal multi-center study would clarify various doubts related to timing and interpretation of PVSA and would also help us to understand, and perhaps predict, recanalization and the potential for future failure of a vasectomy.American Center for Reproductive Medicin
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