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result(s) for
"Madhusoodanan, Vinayak"
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Artificial Intelligence Based Machine Learning Models Predict Sperm Parameter Upgrading after Varicocele Repair: A Multi-Institutional Analysis
2022
Varicocele repair is recommended in the presence of a clinical varicocele together with at least one abnormal semen parameter, and male infertility. Unfortunately, up to 50% of men who meet criteria for repair will not see meaningful benefit in outcomes despite successful treatment. We developed an artificial intelligence (AI) model to predict which men with varicocele will benefit from treatment.
We identified men with infertility, clinical varicocele, and at least one abnormal semen parameter from two large urology centers in North America (Miami and Toronto) between 2006 and 2020. We collected pre and post-operative clinical and hormonal data following treatment. Clinical upgrading was defined as an increase in sperm concentration that would allow a couple to access previously unavailable reproductive options. The tiers used for upgrading were: 1-5 million/mL (ICSI/IVF), 5-15 million/mL (IUI) and >15 million/mL (natural conception). Thus moving from ICSI/IVF to IUI, or from IUI to natural conception, would be considered an upgrade. AI models were trained and tested using R to predict which patients were likely to upgrade after surgery. The model sorted men into categories that defined how likely they were to upgrade after surgery (likely, equivocal, and unlikely).
Data from 240 men were included from both centers. A total of 45.6% of men experienced an upgrade in sperm concentration following surgery, 48.1% did not change, and 6.3% downgraded. The data from Miami were used to create a random forest model for predicting upgrade in sperm concentration. On external validation using Toronto data, the model accurately predicted upgrade in 87% of men deemed likely to improve, and in 49% and 36% of men who were equivocal and unlikely to improve, respectively. Overall, the personalized prediction for patients in the validation cohort was accurate (AUC 0.72).
A machine learning model performed well in predicting clinically meaningful post-varicocelectomy sperm parameters using pre-operative hormonal, clinical, and semen analysis data. To our knowledge, this is the first prediction model to show the utility of hormonal data, as well as the first to use machine learning models to predict clinically meaningful upgrading. This model will be published online as a clinical calculator that can be used in the preoperative counseling of patients.
Journal Article
A prospective study analyzing both inflation and deflation preference for commonly available inflatable penile prostheses
by
Ramasamy Ranjith
,
Kalahasty Karthik
,
Madhusoodanan Vinayak
in
Cardiovascular disease
,
Erectile dysfunction
,
Penis
2021
Despite popularity, satisfaction rates of inflatable penile prosthesis (IPP) use can be improved by evaluating the ability to operate devices in the preoperative setting. The purpose of this study was to prospectively analyze the preference of three commonly available IPPs. In total, 125 IPP-naïve men 60 years of age or older were prospectively recruited from an outpatient Urology clinic from June 2019 to January 2020. A questionnaire standardized to all encounters was utilized to collect demographics, selected medical information, and key pinch strength. Participants were then asked to rank three models in terms of preference (from 1 to 3, 1 representing most preferred) for each inflation and deflation in a double-blinded manner. Statistical analysis was performed using ANOVA, a Chi-square test and multivariable logistical regression analysis. The results demonstrated preference for Coloplast Titan (44%) for inflation, and preference for AMS 700 (40%) for deflation. Men who preferred the Coloplast Titan inflation had a lower chance of preferring the AMS 700 MS deflation (OR = 0.29; p = 0.010) and Coloplast Titan Touch deflation (OR = 0.27; p = 0.012). Preference for Coloplast Titan was weakly associated with participant history of coronary artery disease (OR = 5.96, p = 0.006) and osteoarthritis (OR = 3.04, p = 0.044). Neither key pinch strength nor age was associated with preference for a particular model. IPP-naïve men over 60 years favor Coloplast Titan for inflation and AMS 700 for deflation, and men who preferred the Coloplast Titan for inflation were less likely to choose the AMS 700 MS or Coloplast Titan Touch for deflation. Further studies should aim to confirm these findings.
Journal Article
Financial and Business Literacy Among Urology Residents: Is this a Problem and How Can We Better Prepare Residents for their Careers?
by
Madhusoodanan, Vinayak
,
Ritch, Chad
,
Towe, Maxwell
in
Commerce - education
,
Curriculum
,
Humans
2024
Purpose of Review
Although financial wellness is a predictor of physician burnout, we are yet to optimize financial education or wellness of Urology trainees. We assessed existing studies, compared them to those of other specialties, and discussed resources and methods to address this deficiency.
Recent Findings
Urology residents tend to be less fiscally savvy (carry significant debt, and lack retirement savings or disability insurance), and 90% of trainees and young Urologists do not feel comfortable with the business of practice, including skills like coding and billing, contract negotiation, and self-value assessment.
Summary
Financial and business literacy are deficiencies of Urology training, as in other specialties. Eventually, the goal should be universal adoption of a formal curriculum that is graded in nature. In the interim, we need to propose and endorse adoption of a formal curriculum, and we should support trainees by promoting a space for easily accessible and transparent information regarding best practices in personal finance and the business of healthcare.
Journal Article
Majority of men with premature ejaculation do not receive pharmacotherapy
by
Madhusoodanan, Vinayak
,
Ramasamy, Ranjith
,
Kulkarni, Nikhil
in
692/699/2732/515
,
692/699/2768/515
,
Comorbidity
2023
Premature ejaculation is the most common male sexual dysfunction, with therapies including selective serotonin reuptake inhibitors, clomipramine, topical anesthetics, dapoxetine and tramadol. However, it is currently unknown how many men are receiving pharmacotherapy for premature ejaculation. Using the TriNetX Research network, a large multicenter database containing over 75 million patient records from hospitals across the United States, we evaluated prescribing patterns for treatment of premature ejaculation and assessed variations in prescription patterns among patients from 2015–2021. In addition, we examined if the prescription patterns for tramadol changed with the establishment of Prescription Drug Monitoring Programs. We found that most men (51.7%) were not receiving any pharmacotherapy for premature ejaculation. However, men with mental health disorders, were more likely (56.0%), to have been treated than those without (44.4%). On further analysis, men with mental health diagnoses were significantly more likely to be treated with Selective Serotonin Reuptake Inhibitors (45.0 vs 32.2%) and Tramadol (5.1% vs 3.5%). While the pharmacotherapy for premature ejaculation has been well researched, our findings revealed that most patients diagnosed with premature ejaculation do not receive pharmacotherapy and that patients are more likely to be prescribed premature ejaculation medications if they have a pre-existing mental health diagnosis.
Journal Article
Varicocele is underdiagnosed in men evaluated for infertility: Examination of multi‐center large‐scale electronic health record data
by
Madhusoodanan, Vinayak
,
Ramasamy, Ranjith
,
Carto, Chase
in
Diagnosis
,
Electronic health records
,
Electronic medical records
2022
Varicocele is the most common reversible cause of male infertility, affecting up to 20% of healthy men and 40% of men with primary infertility. The objective of this study was to investigate the prevalence of varicocele in men evaluated for infertility, and to determine rates of subsequent varicocele repair. Since reproductive endocrinologists are the first specialists seen for male infertility care in North America, we hypothesized that varicocele would be underdiagnosed when compared to its reported prevalence among men with infertility. TriNetX, a large, multicenter electronic health record (EHR) database was queried to establish a cohort of all men (above 18 years of age) with a diagnosis of male infertility. This cohort was used to identify those with ensuing varicocele diagnosis. Men who received varicocelectomy or venous embolization after a diagnosis of varicocele were then identified. Out of 101,309 men with a diagnosis of male infertility in the network, only 9768 (9.6%) had a diagnosis of varicocele. Mean age of men with varicocele was 34. Varicocelectomy or venous embolization was performed in 1699 (20.2%) and 69 (0.76%) of men with varicocele, respectively. In this cross‐sectional EHR study, varicocele was underdiagnosed in men evaluated for infertility when compared with prior epidemiological studies.
Journal Article
Does time of intraoperative exposure to the aerobiome increase microbial growth on inflatable penile prostheses?
2025
Inflatable penile prosthesis (IPP) implantation is a surgical approach for the management of erectile dysfunction (ED). A feared complication is IPP infection, and increased operative time is a risk factor for infection. Exposure of an IPP implant to ambient air in the operating room (OR aerobiome) is thought to contribute to risk of infection from increased operative time, but this is not well-supported. The objective of this study was to evaluate if exposure to the OR aerobiome increased microbial colonization of IPPs. This was an ex vivo study using an uncoated IPP, observing standard surgical sterility and OR conditions. A sterile swab was collected every 30 min for 3 h from each IPP component. Positive controls consisted of swabs exposed to unprepped scrotal skin during in-office vasectomies. All swabs underwent quantitative polymerase chain reaction (qPCR) and next generation sequencing (NGS). Bioinformatic processing was carried out and taxonomic assignment was performed. No microbial growth was detected on any component of the IPPs at any time point, while positive control swabs all detected various skin flora, including bacterial and fungal growth. These findings suggest that exposure to the OR aerobiome does not increase the risk of IPP microbial colonization, at least within a 3-hour period. Further in vivo studies are needed.
Journal Article
A Surgeon's Guide to the Various Antibiotic Dips Available During Penile Prosthesis Implantation
by
Madhusoodanan, Vinayak
,
Ramasamy, Ranjith
,
Lokeshwar, Soum D
in
Antibiotics
,
Bacteria
,
Biofilms
2019
Purpose of ReviewInflatable penile prosthesis (IPP) is a treatment for erectile dysfunction. IPPs have undergone improvements; however, post-surgical infections still occur. Furthermore, the type of pathogens infecting the implants has changed recently from Gram-positive to Gram-negative bacteria and fungi due to advances in antibiotic dips targeting the skin flora. To protect against infection, the AMS 700 is pre-coated with InhibiZone (mixture of Rifampin/Minocycline) and the Coloplast Titan, with several antibiotic dip options of differing efficacies. This review discusses strategies to decrease the infection rates in implant surgery, focusing on antibiotic dips.Recent FindingsCurrent research endorses the use of rifampin/gentamicin as the most studied combination; however, some studies have utilized different dips for additional coverage including the InhibiZone on the AMS 700.SummaryWith the increasing prevalence of diabetes and Gram-negative organisms, there is a need to develop strategies for increased coverage against infections. Controlled studies with different antibiotic combinations are needed to identify the ideal cocktail to decrease infection.
Journal Article
Is Time Spent on Prior Authorizations Associated With Approval?
by
Madhusoodanan, Vinayak
,
Ramasamy, Ranjith
,
Ramos, Libert
in
Advanced practice nurses
,
advanced practicing providers
,
Costs
2023
Advanced practice providers increasingly assume responsibility for prior authorizations (PAs). We hypothesized that the time burden of PAs will be correlated with increased approval. We collected several variables (ie, type, method, time spent, use of peer to peer, and outcome) for all PAs completed by a departmental nurse practitioner in 1 region. Chi-square tests and 2 sample t tests were used to assess significance. There was no significant association between the method of request, the number of attempts, and the time spent to approved PA. Further research is needed to determine ways to decrease the time and opportunity cost associated with PAs.
•Advanced practice providers assume the responsibility for prior authorization.•Prior authorizations can be tedious and burdensome to navigate.•Prior authorizations have inconsistent intended outcomes for patients and providers.•Fewer prior authorizations can improve practice efficiency and patient outcomes.
Journal Article
Why should we screen for male fertility?
by
Madhusoodanan, Vinayak
,
Nassau, Daniel E
,
Ramasamy, Ranjith
in
Cryopreservation
,
Fertility
,
Infertility
2021
An increasing number of studies show declining sperm counts; however, semen analyses are uncommon until the evaluation for infertility. Semen analysis is a safe, reliable and relatively inexpensive screening test, assessing male fertility and directing further work‐up. In young men, the use of semen analysis may identify disease prior to attempted conception and result in improved fertility potential when combined with lifestyle changes, medical or surgical therapy. Furthermore, if sperm counts are significantly low, evaluation and management for genetic causes can be initiated. Our commentary outlines why screening for male infertility in young adult men may be beneficial. We discuss options for early intervention, including sperm cryopreservation, if defects in sperm parameters are identified.
Journal Article