Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 41
Filtrar
Más filtros

País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
J Neurosci ; 44(5)2024 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-38123991

RESUMEN

Maintaining precise synaptic contacts between neuronal partners is critical to ensure the proper functioning of the mammalian central nervous system (CNS). Diverse cell recognition molecules, such as classic cadherins (Cdhs), are part of the molecular machinery mediating synaptic choices during development and synaptic maintenance. Yet, the principles governing neuron-neuron wiring across diverse CNS neuron types remain largely unknown. The retinotectal synapses, connections from the retinal ganglion cells (RGCs) to the superior collicular (SC) neurons, offer an ideal experimental system to reveal molecular logic underlying synaptic choices and formation. This is due to the retina's unidirectional and laminar-restricted projections to the SC and the large databases of presynaptic RGC subtypes and postsynaptic SC neuronal types. Here, we focused on determining the role of Type II Cdhs in wiring the retinotectal synapses. We surveyed Cdhs expression patterns at neuronal resolution and revealed that Cdh13 is enriched in the wide-field neurons in the superficial SC (sSC). In either the Cdh13 null mutant or selective adult deletion within the wide-field neurons, there is a significant reduction of spine densities in the distal dendrites of these neurons in both sexes. Additionally, Cdh13 removal from presynaptic RGCs reduced dendritic spines in the postsynaptic wide-field neurons. Cdh13-expressing RGCs use differential mechanisms than αRGCs and On-Off Direction-Selective Ganglion Cells (ooDSGCs) to form specific retinotectal synapses. The results revealed a selective transneuronal interaction mediated by Cdh13 to maintain proper retinotectal synapses in vivo.


Asunto(s)
Células Ganglionares de la Retina , Sinapsis , Animales , Células Ganglionares de la Retina/fisiología , Sinapsis/fisiología , Colículos Superiores/fisiología , Dendritas/fisiología , Cadherinas/genética , Cadherinas/metabolismo , Mamíferos
2.
J Gen Intern Med ; 39(8): 1414-1422, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38148474

RESUMEN

BACKGROUND: The FDA issued a "black box" warning regarding risks of fluoroquinolones in 2008 with updates in 2011, 2013, and 2016. OBJECTIVE: To examine antimicrobial use in hospital-treated UTIs from 2000 to 2020. DESIGN: Cross-sectional study with interrupted time series analysis. PARTICIPANTS: Patient encounters with a diagnosis of UTI from January 2000 to March 2020, excluding diagnoses of renal abscess, chronic cystitis, and infection of the gastrointestinal tract, lungs, or prostate. MAIN MEASURES: Monthly use of fluoroquinolone and non-fluoroquinolone antibiotics were assessed. Fluoroquinolone resistance was assessed in available cultures. Interrupted time series analysis examined level and trend changes of antimicrobial use with each FDA label change. KEY RESULTS: A total of 9,950,790 patient encounters were included. From July 2008 to March 2020, fluoroquinolone use declined from 61.7% to 11.7%, with similar negative trends observed in inpatients and outpatients, age ≥ 60 and < 60 years, males and females, patients with and without pyelonephritis, and across physician specialties. Ceftriaxone use increased from 26.4% encounters in July 2008 to 63.6% of encounters in March 2020. Among encounters with available culture data, fluoroquinolone resistance declined by 28.9% from 2009 to 2020. On interrupted time series analysis, the July 2008 FDA warning was associated with a trend change (-0.32%, < 0.001) and level change (-5.02%, p < 0.001) in monthly fluoroquinolone use. CONCLUSIONS: During this era of "black box" warnings, there was a decline in fluoroquinolone use for hospital-treated UTI with a concomitant decline in fluoroquinolone resistance and rise in ceftriaxone use. Efforts to restrict use of a medication class may lead to compensatory increases in use of a single alternative agent with changes in antimicrobial resistance profiles.


Asunto(s)
Antibacterianos , United States Food and Drug Administration , Infecciones Urinarias , Humanos , Infecciones Urinarias/tratamiento farmacológico , Masculino , Femenino , Estados Unidos/epidemiología , Estudios Transversales , Antibacterianos/uso terapéutico , Antibacterianos/efectos adversos , Persona de Mediana Edad , Anciano , Adulto , Fluoroquinolonas/uso terapéutico , Análisis de Series de Tiempo Interrumpido , Infección Hospitalaria/tratamiento farmacológico , Infección Hospitalaria/epidemiología
3.
Prostate ; 83(7): 656-662, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36808735

RESUMEN

OBJECTIVE: We evaluate the clinical feasibility of a portable, low-field magnetic resonance imaging (MRI) system for prostate cancer (PCa) biopsy. METHODS: A retrospective analysis of men who underwent a 12-core systematic transrectal ultrasound-guided prostate biopsy (SB) and a low-field MRI guided transperineal targeted biopsy (MRI-TB). Comparison of the detection of clinically significant PCa (csPCa) (Gleason Grade [GG] ≥ 2) by SB and low field MRI-TB, stratified by Prostate Imaging Reporting & Data System (PI-RADS) score, prostate volume, and prostate serum antigen (PSA) was performed. RESULTS: A total of 39 men underwent both the MRI-TB and SB biopsy. Median (interquartile range [IQR]) age was 69.0 (61.5-73) years, body mass index (BMI) was 28.9 kg/m2 (25.3-34.3), prostate volume was 46.5 cc (32-72.7), and PSA was 9.5 ng/ml (5.5-13.2). The majority (64.4%) of patients had PI-RADS ≥ 4 lesions and 25% of lesions were anterior on pre-biopsy MRII. Cancer detection rate (CDR) was greatest when combining SB and MRI-TB (64.1%). MRI-TB detected 74.3% (29/39) cancers. Of which, 53.8% (21/39) were csPCa while SB detected 42.5% (17/39) csPCa (p = 0.21). In 32.5% (13/39) of cases, MRI-TB upstaged the final diagnosis, compared to 15% (6/39) of cases in which SB upstaged the final diagnosis (p = 0.11). CONCLUSION: Low-field MRI-TB is clinically feasible. Although future studies on the accuracy of MRI-TB system are needed, the initial CDR is comparable to those seen with fusion-based prostate biopsies. A transperineal and targeted approach may be beneficial in patients with higher BMI and anterior lesions.


Asunto(s)
Próstata , Neoplasias de la Próstata , Masculino , Humanos , Anciano , Próstata/diagnóstico por imagen , Próstata/patología , Imagen por Resonancia Magnética/métodos , Neoplasias de la Próstata/patología , Antígeno Prostático Específico , Estudios Retrospectivos , Estudios de Factibilidad , Estudios Prospectivos , Biopsia Guiada por Imagen/métodos
4.
World J Urol ; 41(4): 1141-1146, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36797501

RESUMEN

PURPOSE: The Butterfly Prostatic Retraction Device ("Butterfly") is a permanent nitinol implant for benign prostatic hyperplasia. This study examines the chronic response of prostate tissue to the Butterfly in histological specimens from patients in the Butterfly pilot clinical study. METHODS: Retrospective qualitative and semi-quantitative review of histological specimens of seven (7) patients who participated in the Butterfly pilot clinical study. Patients had at least 1-month implantation with the Butterfly prior to implant removal and TURP. Tissue samples were graded by two pathologists. RESULTS: Four out of six patients had IPSS decreased from baseline. All seven patients' samples had signs of chronic inflammation; one demonstrated acute inflammation and one demonstrated fibrosis. In three cases, intraglandular calcification was identified. There was no ischemic necrosis induced by the implant, and no encrustation, urethral edema, or cellular atypia was noted. CONCLUSION: The Butterfly demonstrated an overall favorable safety profile in terms of tissue response. This study demonstrates that there is no significant tissue reaction in the prostatic urethra due to presence of Butterfly device.


Asunto(s)
Síntomas del Sistema Urinario Inferior , Hiperplasia Prostática , Resección Transuretral de la Próstata , Masculino , Humanos , Próstata , Hiperplasia Prostática/cirugía , Hiperplasia Prostática/diagnóstico , Estudios Retrospectivos , Inflamación , Síntomas del Sistema Urinario Inferior/cirugía , Resultado del Tratamiento
5.
Neurourol Urodyn ; 42(7): 1563-1568, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37395472

RESUMEN

INTRODUCTION: Practice patterns around the use of urodynamic evaluation (UDS) for benign prostatic hyperplasia (BPH) surgery are largely undefined. As such, we investigated factors associated with the use of UDS for BPH. METHODS: We used American Board of Urology case log data from 2008 to 2020, to compare patient- and surgeon-sided factors associated with UDS utilization and BPH surgeries. We performed logistic regression models to identify factors independently associated with UDS usage for BPH. RESULTS: Among urologists performing UDS, the majority (80%) self-identified as general urologists and practiced in a private practice group (69%). Compared with urologists who performed no UDS, urologists who performed any UDS for BPH were more likely to be from the Mid-Atlantic (20.3% vs. 10.6%, p < 0.01) and practice in regions with populations of >1 000 000 (34.7% vs. 28.5%, p < 0.01). Overall, UDS utilization declined over time (odds ratio [OR]: 0.95 year-to-year, 95% confidence interval [CI]: 0.91-0.99). In adjusted analyses, the odds of performing UDS was higher among male (OR: 2.19, 95% CI: 1.17-4.09), older (OR: 1.05, 95% CI: 1.03-1.06), and female pelvic medicine and reconstructive surgery subspecialty (OR: 3.23, 95% CI: 2.01-5.2) urologists. Additionally, performing UDS for BPH was associated with higher BPH surgical case volume (OR: 1.004, 95% CI: 1.001-1.008). CONCLUSION: There is a significant practice variation in use of UDS for BPH. Although overall BPH surgeries are increasing, urologists are increasingly less likely to perform UDS for BPH. Specifically, urologists who perform UDS have significantly higher BPH case volume than those who do not perform UDS, suggesting that UDS usage may not factor into BPH surgery decision-making.


Asunto(s)
Hiperplasia Prostática , Urología , Humanos , Masculino , Femenino , Hiperplasia Prostática/cirugía , Urodinámica , Pautas de la Práctica en Medicina , Urólogos
6.
Can J Urol ; 30(1): 11408-11413, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36779946

RESUMEN

INTRODUCTION: A common indication for benign prostate hyperplasia (BPH) therapies is failure to improve with medical therapy. However, pivotal Federal Drug Administration (FDA) registered randomized clinical trials (RCTs) for minimally invasive surgical therapies (MISTs) are designed to be compared to either sham or placebo while off medical therapy at baseline, and as an alternative to medical therapy. There are few if any RCTs reporting the MISTS efficacy in patients with true medical therapy failure. We report on the efficacy of robotic water jet ablation therapy (RWT) and TURP in patients who have failed to improve with medical therapy. MATERIALS AND METHODS: Data was obtained from the WATER and WATER II clinical trials. Both clinical trials did not implement a drug washout period. Only patients with reported BPH medical therapy such as alpha-blockers (AB) and 5-alpha-reductase inhibitors (5-ARIs) usage were included. Functional outcomes as post-void residual volume (PVR), peak urinary flow rate (Qmax), internal prostate symptom score (IPSS), and quality of life score (QoL) were analyzed. RESULTS: AB and/or 5-ARIs usage at baseline were reported in 146 and 39 patients who underwent RWT (prostate sizes up to 150 cc) and transurethral resection of the prostate (TURP, prostate sizes up to 80 cc) respectively. Baseline median (IQR) IPSS, QoL, Qmax and PVR were 24 (18,28), 5 (4,5), 8.9 (6.4,11.5), and 95 (36,172), respectively. Functional outcomes did not statistically differ between Aquablation and TURP at baseline and at 36-month. In cohort of true medical failure, both RWT and TURP demonstrated group statistical improvements in PVR, Qmax, IPSS, and QoL at 36-month compared to baseline. CONCLUSIONS: RWT and TURP are effective BPH therapy in patients who truly failed medical therapy, and RWT demonstrated this in a much broader prostate size range.


Asunto(s)
Hiperplasia Prostática , Procedimientos Quirúrgicos Robotizados , Resección Transuretral de la Próstata , Masculino , Humanos , Hiperplasia Prostática/cirugía , Resección Transuretral de la Próstata/efectos adversos , Agua , Próstata/cirugía , Resultado del Tratamiento , Calidad de Vida
7.
J Urol ; 208(5): 997-1006, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35900150

RESUMEN

PURPOSE: Left-digit bias is a phenomenon in which the leftmost digit of a number disproportionately influences decision making. We measured the effect of left-digit age bias on treatment recommendations for localized prostate cancer. MATERIALS AND METHODS: We included men with clinically localized prostate adenocarcinoma in Surveillance, Epidemiology, and End Results from 2004 to 2018 and the National Cancer Database from 2004 to 2016. Primary outcomes were recommendations for radiation therapy and radical prostatectomy. Regression discontinuity was used to assess whether age increase from 69 to 70 years was associated with disproportionate changes in treatment recommendations. RESULTS: In Surveillance, Epidemiology, and End Results, discontinuities were found in the proportion of patients recommended for radiation among the entire cohort (effect size 2.2%, P < .01) and among patients with Gleason 6 (1.6%, P < .01), Gleason 7 (2.5%, P < .01), and Gleason ≥8 (2.1%, P < .01) cancer, while the proportion recommended for prostatectomy decreased in the entire cohort (-1.4%, P < .01) and in patients with Gleason 7 cancer (-2.4%, P < .01). In the National Cancer Database, discontinuity from age 69 to 70 was found in recommendations for radiation in the entire cohort (effect size: 3.1%, P < .01) and in patients with Gleason 6 (2.2%, P < .01), Gleason 7 (4.0%, P < .01), and Gleason ≥8 (2.3%, P < .02) cancer, while the proportion recommended for prostatectomy decreased at this cutoff in the entire cohort (effect size: -2.7%, P < .01) and patients with Gleason 6 (-2.2%, P < .01) and Gleason 7 (-3.7%, P < .01) cancer. CONCLUSIONS: In patients with localized prostate cancer, left-digit age change from 69 to 70 was associated with disproportionately increased recommendations for radiation and decreased recommendations for prostatectomy.


Asunto(s)
Antígeno Prostático Específico , Neoplasias de la Próstata , Anciano , Humanos , Masculino , Clasificación del Tumor , Próstata/patología , Prostatectomía/métodos , Neoplasias de la Próstata/patología
8.
BJU Int ; 2022 Nov 24.
Artículo en Inglés | MEDLINE | ID: mdl-36424894

RESUMEN

OBJECTIVE: To assess urology trainees' exposure to transperineal prostate biopsy (TP-Bx) and intent to use TP-Bx in practice. SUBJECTS AND METHODS: A 34-question survey about prostate biopsy was distributed to urology trainees in the United States and Europe. Primary outcomes were exposure to TP-Bx in training and intent to use TP-Bx post training. Exposure to transrectal prostate biopsy (TR-Bx) and magnetic resonance imaging-targeted biopsy (MRI-Bx) was also assessed. Survey answers were compared between groups as categorical variables using Fisher's exact test. Multivariable logistic regression was used to identify factors associated with intent of performing TP-Bx post training. RESULTS: A total of 658 trainees from 19 countries completed the survey. Of these, 313 trainees (48%) reported exposure to TP-Bx, 370 (56%) reported exposure to MRI-Bx, and 572 (87%) reported exposure to TR-Bx. There was significant heterogeneity in TP-Bx exposure among countries (P < 0.001), with the highest prevalence in Italy (72%) and the lowest prevalence in Greece (4%). Intent to perform TP-Bx post training was higher in those exposed to TP-Bx during training (89% vs 58%; P < 0.001) and did not differ between trainees in postgraduate year (PGY) 1-3 vs those in PGY ≥4 (73% vs 72%; P = 0.7). On multivariable regression, exposure to TP-Bx in training was independently associated with increased intent to perform TP-Bx post training (odds ratio 5.09, 95% confidence interval 3.29-8.03; P < 0.001). CONCLUSIONS: Fewer than half of 658 surveyed urology trainees reported exposure to TP-Bx, with significant heterogeneity among countries. Greater experience with TP-Bx in training was associated with greater intent to perform TP-Bx post training. A minimum requirement of TP-Bx cases during urological training may increase resident familiarity and adoption of this guideline-endorsed prostate biopsy approach.

9.
Int Urogynecol J ; 33(5): 1157-1164, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35237854

RESUMEN

INTRODUCTION AND HYPOTHESIS: The objective was to systemically review the current literature on the association of gut, vaginal, and urinary dysbiosis in female patients with overactive bladder (OAB). METHODS: We performed a comprehensive literature search following the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) protocols for systematic reviews. In the EMBASE, CINAHL, and Medline databases, a search was conducted using key words such as "microbiome," "microbiota," "microflora," "overactive bladder," "urge," "gut," "vaginal." Articles were screened using the online tool www.covidence.org . Two independent reviewers screened studies at each stage and resolved conflicts together. We excluded papers that discussed pediatric patients and animal studies. In total, 13 articles met this criterion, which included 6 abstracts. RESULTS: After identifying 817 unique references, 13 articles met the criteria for data extraction. Articles were published from 2017 to 2021. No study reported the same microbiota abundance, even in healthy individuals. Overall, there was a loss of bacterial diversity in OAB patients compared with controls. Additionally, the bacterial composition of the controls and OAB patients was not significantly different, especially if the urine was collected midstream. Overall, the composition of the microbiome is dependent on the specimen collection methodology, and the metagenomic sequencing technique utilized. OAB urine microbiome is more predisposed to alteration from the gut or vaginal influences than in controls. CONCLUSIONS: Current evidence suggested a potential relationship among gut, vaginal, and urinary microbiome in OAB patients, but there are very limited studies.


Asunto(s)
Microbiota , Vejiga Urinaria Hiperactiva , Sistema Urinario , Bacterias , Niño , Femenino , Humanos , Vejiga Urinaria Hiperactiva/microbiología , Sistema Urinario/microbiología , Vagina
10.
J Gen Intern Med ; 36(1): 92-99, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32875501

RESUMEN

BACKGROUND: Implementation methods of risk-stratified cancer screening guidance throughout a health care system remains understudied. OBJECTIVE: Conduct a preliminary analysis of the implementation of a risk-stratified prostate cancer screening algorithm in a single health care system. DESIGN: Comparison of men seen pre-implementation (2/1/2016-2/1/2017) vs. post-implementation (2/2/2017-2/21/2018). PARTICIPANTS: Men, aged 40-75 years, without a history of prostate cancer, who were seen by a primary care provider. INTERVENTIONS: The algorithm was integrated into two components in the electronic health record (EHR): in Health Maintenance as a personalized screening reminder and in tailored messages to providers that accompanied prostate-specific antigen (PSA) results. MAIN MEASURES: Primary outcomes: percent of men who met screening algorithm criteria; percent of men with a PSA result. Logistic repeated measures mixed models were used to test for differences in the proportion of individuals that met screening criteria in the pre- and post-implementation periods with age, race, family history, and PSA level included as covariates. KEY RESULTS: During the pre- and post-implementation periods, 49,053 and 49,980 men, respectively, were seen across 26 clinics (20.6% African American). The proportion of men who met screening algorithm criteria increased from 49.3% (pre-implementation) to 68.0% (post-implementation) (p < 0.001); this increase was observed across all races, age groups, and primary care clinics. Importantly, the percent of men who had a PSA did not change: 55.3% pre-implementation, 55.0% post-implementation. The adjusted odds of meeting algorithm-based screening was 6.5-times higher in the post-implementation period than in the pre-implementation period (95% confidence interval, 5.97 to 7.05). CONCLUSIONS: In this preliminary analysis, following implementation of an EHR-based algorithm, we observed a rapid change in practice with an increase in screening in higher-risk groups balanced with a decrease in screening in low-risk groups. Future efforts will evaluate costs and downstream outcomes of this strategy.


Asunto(s)
Sistemas de Apoyo a Decisiones Clínicas , Neoplasias de la Próstata , Adulto , Anciano , Algoritmos , Detección Precoz del Cáncer , Humanos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Atención Primaria de Salud , Antígeno Prostático Específico , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/epidemiología
11.
Curr Opin Organ Transplant ; 26(6): 582-586, 2021 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-34534173

RESUMEN

PURPOSE OF REVIEW: Research in the past decade has revealed important implications for the microbiome in human health. Studies have defined a distinct gut microbiota in kidney transplant recipients and have recently linked the microbiota to infectious complications, similar to the allogeneic stem cell transplant population. RECENT FINDINGS: In this review, we focus on the metabolism of immunosuppressive medications by the gut microbiota and on the urinary microbiome in the setting of infectious and immunological complications. We highlight seminal studies showing the role of specific gut microbiota in the direct metabolism of tacrolimus into a lesser effective immunosuppressant as well as the role of the gut microbiota in the metabolism of mycophenolic acid (MPA) glucuronide. We describe distinct urinary microbiota patterns in kidney transplant recipients with interstitial fibrosis tubular atrophy, chronic allograft nephropathy, tolerance, and bacterial and viral complications. SUMMARY: The microbiota has important implications for immunosuppressive medications and immunological outcomes in kidney transplant recipients. Further research is needed to better delineate the impact of the metabolism of tacrolimus and MPA by gut bacteria and the role of the urine microbiota in the development of immunological and infectious complications.


Asunto(s)
Trasplante de Riñón , Microbiota , Humanos , Inmunosupresores/efectos adversos , Trasplante de Riñón/efectos adversos , Tacrolimus , Receptores de Trasplantes
12.
BMC Urol ; 19(1): 127, 2019 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-31805908

RESUMEN

BACKGROUND: Due to their location away from the nerve bundles, anterior prostate cancers (APC) represent a rational target for image-guided cryoablation. This report describes the feasibility and short-term outcomes of anterior focal cryosurgery. METHODS: A retrospective review between 2012 and 2016 of patients with clinically localized APC treated with anterior gland cryoablation was performed. Descriptive statistics were used to report: age, PSA, prostate volume, prostate cancer grade group (PGG), median time to follow-up, and changes in functional status measured with the International Prostate Symptom Score (IPSS) and the International Index of Erectile Function (IIEF-5) score. RESULTS: A total of 17 patients underwent anterior focal cryoablation with a median follow-up of 15 months. Median age and PSA at diagnosis were 67 years and 8.7 ng/mL. Pre-operative PGG1 was identified in 12 (71%) men and PGG2 in 5 (29%) men. Median (IQR) lesion volume was 2 mL(0.86, 3.1). Preoperative median IIEF-5 and IPSS scores were 19.5 and 5, and decreased to 19 and 4, post-operatively. All patients remained continent with no change in sexual function. All post-procedure targeted biopsies of the treated cancers were negative. CONCLUSION: Our pilot study demonstrates the feasibility of treating APCs with image-guided targeted focal cryoablation as a good balance between short-term oncologic control and near complete preservation of genitourinary function. Further follow-up is necessary to examine the potential benefits long-term.


Asunto(s)
Criocirugía/métodos , Prueba de Estudio Conceptual , Neoplasias de la Próstata/cirugía , Factores de Edad , Anciano , Estudios de Factibilidad , Humanos , Imagen por Resonancia Magnética , Masculino , Clasificación del Tumor , Erección Peniana , Proyectos Piloto , Próstata/patología , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/sangre , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/patología , Estudios Retrospectivos , Resultado del Tratamiento , Carga Tumoral
13.
Int Braz J Urol ; 45(2): 332-339, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30676301

RESUMEN

PURPOSE: To explore the potential association between renal mass characteristics and a history of chemotherapy. MATERIALS AND METHODS: A retrospective review of records of patients surgically treated for a localized renal mass between 2000 and 2012 was undertaken following an institutional review board approval. Patients age and sex, renal mass clinical characteristics (radiological size and mode of presentation) and pathological characteristics (diagnosis, renal cell carcinoma subtype, Fuhrman grade and stage) were compared between patients with and without a history of chemotherapy, using Fisher's exact test, Student's t-test and Wilcoxon rank sum test. A multivariate logistic analysis was performed to evaluate the independent association of chemotherapy and tumor pathology. RESULTS: Of the 1,038 eligible patients, 33 (3%) had a history of chemotherapy. The distribution of clinical stage, renal mass diagnosis, renal cell carcinoma subtype, Fuhrman grade, pathological stage, sex and median age were similar between the general population and the chemotherapy group. However, the latter had a higher rate of incidental presentation (P = 0.003) and a significantly smaller median radiological tumor size (P = 0.01). In a subset analysis of T1a renal cell carcinoma, the chemotherapy group presented an increased rate of high Fuhrman grade (P = 0.03). On multivariate analysis adjusted for radiological tumor size, sex and age the chemotherapy cohort had a 3.92 higher odds for high Fuhrman grade. CONCLUSION: Patients with a history of chemotherapy typically present with smaller renal masses that, if malignant, have higher odds of harboring a high Fuhrman grade and thus may not be suitable for active surveillance.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma de Células Renales/patología , Neoplasias Renales/patología , Riñón/patología , Adulto , Anciano , Carcinoma de Células Renales/tratamiento farmacológico , Carcinoma de Células Renales/cirugía , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Riñón/cirugía , Neoplasias Renales/tratamiento farmacológico , Neoplasias Renales/cirugía , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Análisis de Supervivencia
14.
Cancer ; 123(21): 4122-4129, 2017 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-28662291

RESUMEN

BACKGROUND: A 5-tier prognostic grade group (GG) system was enacted to simplify the risk stratification of patients with prostate cancer in which Gleason scores of ≤6, 3 + 4, 4 + 3, 8, and 9 or 10 are considered GG 1 through 5, respectively. The authors investigated the utility of biopsy GG for predicting long-term oncologic outcomes after radical prostatectomy in an equal-access health system. METHODS: Men who underwent prostatectomy at 1 of 6 Veterans Affairs hospitals in the Shared Equal Access Regional Cancer Hospital database between 2005 and 2015 were reviewed. The prognostic ability of biopsy GG was examined using Cox models. Interactions between GG and race also were tested. RESULTS: In total, 2509 men were identified who had data available on biopsy Gleason scores, covariates, and follow-up. The cohort included men with GG 1 (909 patients; 36.2%), GG 2 (813 patients; 32.4%), GG 3 (398 patients; 15.9%), GG 4 (279 patients; 11.1%), and GG 5 (110 patients; 4.4%) prostate cancer. The cohort included 1002 African American men (41%). The median follow-up was 60 months (interquartile range, 33-90 months). Higher GG was associated with higher clinical stage, older age, more recent surgery, and surgical center (P < .001) as well as increased biochemical recurrence, secondary therapy, castration-resistant prostate cancer, metastases, and prostate cancer-specific mortality (all P < .001). There were no significant interactions with race in predicting measured outcomes. CONCLUSIONS: The 5-tier GG system predicted multiple long-term endpoints after radical prostatectomy in an equal-access health system. The predictive value was consistent across races. Cancer 2017;123:4122-4129. © 2017 American Cancer Society.


Asunto(s)
Clasificación del Tumor/clasificación , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Biopsia , Población Negra/estadística & datos numéricos , Progresión de la Enfermedad , Accesibilidad a los Servicios de Salud , Hospitales de Veteranos , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Clasificación del Tumor/métodos , Evaluación de Resultado en la Atención de Salud , Pronóstico , Modelos de Riesgos Proporcionales , Próstata/patología , Prostatectomía , Neoplasias de la Próstata/etnología , Neoplasias de la Próstata/mortalidad , Reproducibilidad de los Resultados , Medición de Riesgo , Población Blanca/estadística & datos numéricos
15.
Curr Urol Rep ; 18(7): 52, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28589398

RESUMEN

PURPOSE OF REVIEW: Growing research supports the use of multiparametric magnetic resonance imaging (mpMRI) for the evaluation of localized prostate cancer (PCa). We highlight contemporary evidence supporting its use in active surveillance (AS). RECENT FINDINGS: The emerging approach to localized PCa favors risk-adapted screening, image-guided biopsies, and selective therapeutic interventions. mpMRI is increasingly critical to achieve each of these aims. Early evidence suggests a value of mpMRI before initial biopsy to guide fusion targeting and to rule out non-organ confined disease as well as in the initiation and serial monitoring of men on AS. There remain concerns regarding understaging cancer with mpMRI and the standardization of expertise beyond the most experienced centers. mpMRI is emerging as a critical decision point for staging localized PCa and guiding AS strategies. While there is increasing enthusiasm, the optimal clinical scenario and sequencing remains to be defined.


Asunto(s)
Imagen por Resonancia Magnética/métodos , Neoplasias de la Próstata/diagnóstico por imagen , Espera Vigilante/métodos , Humanos , Biopsia Guiada por Imagen/métodos , Masculino , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/terapia
16.
Urol Pract ; : 101097UPJ0000000000000639, 2024 Jun 19.
Artículo en Inglés | MEDLINE | ID: mdl-38913588

RESUMEN

INTRODUCTION: With more than 60% of urological procedures performed in ambulatory settings, it is imperative to understand the current trends in postoperative narcotic prescriptions and their adherence to the guidelines. We studied postoperative opioid-prescribing patterns after selected common urology ambulatory procedures. METHODS: A retrospective cohort was derived from a 10% random sample of enrollees within the IQVIA PharMetrics Plus for Academics database from 2015 to 2021. Patient-level baseline characteristics were collected in the year preceding the index date. Descriptive and bivariate analyses were used to compare patient characteristics from opioid and nonopioid cohorts and those who utilized opioids ≤ 7 days and > 7 days postprocedurally. Trends of opioid and nonopioid use were also investigated and compared. RESULTS: Between 2015 to 2021, 17,817 patients underwent urological ambulatory procedures, of which the majority (90.9%) were endoscopic procedures. Of those, 4077 (22%) were prescribed opioids and 978 (5.4%) patients were given prescription nonopioid (ie, ketorolac) medication. From 2015 to 2021, there was an overall decrease in prescription of opioids from 32% to 19%. The acute fulfillment (within 7 days of the procedure) of opioids had notably declined; however, there is a slight increase in the fulfillment of opioids beyond 7 days. CONCLUSIONS: Within the 7-day postsurgical period after ambulatory procedures, narcotic prescribing habits among urologists are congruent with current initiatives to reduce narcotic use in the setting of the opioid pandemic. However, beyond the 7-day postsurgical period, further guidelines are needed to guide narcotic prescribing habits.

17.
Can Urol Assoc J ; 17(5): E104-E109, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36758183

RESUMEN

INTRODUCTION: Benign prostatic hyperplasia (BPH) is a common diagnosis among aging males; however, the relationship between prostate volume and lower urinary tract symptom (LUTS) severity is imperfect. The goal of this study was to comprehensively investigate the relationship between various prostate zone-based parameters measured using magnetic resonance imaging (MRI) and LUTS. METHODS: Data were retrospectively collected for 144 patients who underwent MRI between 2015 and 2017 at a single institution. Prostate volumes were measured on sagittal and axial T2 weighted using the prostate ellipsoid formula. RESULTS: Only transition zone thickness (TZT) correlated with International Prostate Symptom Score (IPSS) (Pearson's=0.33, p=0.007). The intraprostatic protrusion (IPP) component (rho=0.261, p=0.036), transitional zone volume (TZV) (rho=0.264, p=0.034), and TZT (Pearson's correlation=0.422, p<0.001) all correlated with worsening quality of life (QoL) scores. In total, 97.9% of men had the presence of an IPP (>0 mm) and larger IPPs were found in older men with higher postvoid residual volumes. Larger peripheral zone volume (PZV) (odds ratio [OR ] 3.62, 95% confidence interval [CI] 1.07-12.30, p<0.05), TZV (OR 6.00, 95% CI 1.69-21.35, p<0.05), and TZT (OR 4.00, 95% CI 1.17-13.69, p<0.05) were predictive of developing severe LUTS ; however, IPP (p=0.122) was not. CONCLUSIONS: TZV, TZT, and IPP all demonstrated a role in the evaluation of LUTS, with predictive capabilities. IPP is very common but not always clinically significant. Clarifying more precise zonal parameters and their relationship with LUTS may ultimately help clinicians guide the need for surgical intervention more precisely.

18.
Urology ; 175: 157-162, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36863599

RESUMEN

OBJECTIVE: To use American Board of Urology (ABU) case log data to elucidate practice patterns for benign prostatic hyperplasia (BPH) surgery. Several surgical modalities have been introduced in recent decades causing significant practice variation. MATERIALS AND METHODS: We retrospectively analyzed ABU case logs from 2008-2021 to assess trends in BPH surgery. We created logistic regression models to identify surgeon-sided factors associated with utilization of each surgical modality. RESULTS: We identified 6,632 urologists who logged 73,884 surgeries for BPH. Transurethral resection of the prostate (TURP) was the most commonly performed BPH surgery in all but 1 year, and odds of performing a TURP increased year-over-year (OR 1.055, 95% CI [1.013,1.098], P = .010). The use of holmium laser enucleation of the prostate (HoLEP) did not change over time. HoLEP was more likely to be performed by urologists with higher BPH surgical volume (OR 1.017, CI [1.013, 1.021], P < .001) and with endourology subspecialization (OR 2.410, CI [1.45, 4.01], P = .001). Prostatic urethral lift (PUL) utilization increased significantly since its introduction in 2015 (OR 1.663, CI [1.540, 1.796], P < .001). PUL currently comprises over one third of all BPH surgeries logged. CONCLUSION: In the face of newer technologies, TURP remains the most common surgery for BPH in the United States. PUL has been rapidly adopted while HoLEP comprises a consistent minority of cases. Surgeon age, patient age, and urologist subspecialization were associated with use of certain BPH surgical approaches.


Asunto(s)
Terapia por Láser , Láseres de Estado Sólido , Hiperplasia Prostática , Resección Transuretral de la Próstata , Masculino , Humanos , Hiperplasia Prostática/cirugía , Hiperplasia Prostática/complicaciones , Estudios Retrospectivos , Próstata , Endoscopía , Láseres de Estado Sólido/uso terapéutico , Resultado del Tratamiento
19.
Urol Oncol ; 41(7): 324.e9-324.e12, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37225635

RESUMEN

INTRODUCTION: Several recently-developed prostate cancer (CaP) biomarkers are recommended per national guidelines, yet feasibility of obtaining these tests is unknown. We used a national database to assess insurance coverage of CaP biomarkers. MATERIALS AND METHODS: Insurance policies regarding 4K Score, ExoDx, My Prostate Score, Prostate Cancer Antigen 3, Prostate Health Index, and SelectMDx as of January 1, 2022 were extracted from the policy reporter database. Coverage was defined as a biomarker being deemed medically necessary, conditionally covered, or covered with prior authorization. Overall rates of biomarker coverage were compared by insurance type and region using Chi-squared test. SelectMDx was not covered by any queried policies and was omitted from analysis. RESULTS: A total of 186 insurance plans were identified among 131 payers. Of the 186 plans, 109 (59%) covered at least one biomarker, with prior authorization required for 38 (35%) of these plans. Prostate Cancer Antigen 3 and 4K Score had higher rates of coverage compared to ExoDx, Prostate Health Index, and My Prostate Score (52% and 43% vs. 26%, 26%, and 5%, respectively, P < 0.01). Medicare plans had higher rates of coverage compared to non-Medicare plans (80% Medicare vs. 17% commercial, 15% federal employer, and 13% Medicaid, P < 0.01), and nationwide plans had higher coverage rates compared to regional plans (43% nationwide vs. 32% midwest, 27% northeast, 25% south, 24% west, P < 0.01). Covered biomarkers under Medicare plans were less likely to require prior authorization compared to those covered by non-Medicare plans (12% Medicare vs. 63% commercial, 100% federal employer, 70% Medicaid, P < 0.01). CONCLUSIONS: Coverage of novel CaP biomarkers are relatively robust for Medicare plans but sparse for non-Medicare plans, with the majority of non-Medicare plans requiring prior authorization. Non-Medicare eligible men may face significant barriers to obtaining these tests.


Asunto(s)
Biomarcadores de Tumor , Neoplasias de la Próstata , Masculino , Estados Unidos , Humanos , Próstata , Aseguradoras , Medicaid , Neoplasias de la Próstata/diagnóstico , Cobertura del Seguro
20.
J Palliat Med ; 26(2): 264-269, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36579919

RESUMEN

Patients receiving palliative care (PC) can present with or develop a host of urological needs or complications. These needs can include attention to sexual health, urinary incontinence, genitourinary bleeding, and urinary tract obstruction by benign, malignant, or urinary stone diseases. These varied conditions require that PC clinicians understand invasive and noninvasive medical, surgical, and radiation options for treatment. This article, written by a team of urologists, geriatricians, and PC specialists, offers information and guidance to PC teams in an accessible "Top Ten Tips" format to increase comfort with and skills around assessment, evaluation, and specialist referral for urological conditions common in the PC setting.


Asunto(s)
Enfermería de Cuidados Paliativos al Final de la Vida , Incontinencia Urinaria , Humanos , Cuidados Paliativos , Calidad de Vida
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA