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1.
Urol Oncol ; 42(5): 159.e1-159.e7, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38431487

RESUMEN

INTRODUCTION: The introduction of multi parameter magnetic resonance imaging (mpMRI) of the prostate in combination with MRI/TRUS fusion and systematic biopsy resulted in improved detection of prostate cancer. The aim of the current study was to document the performance of MRI/TRUS fusion biopsy of the prostate using the Navigo™ software in a contemporary cohort of patients from nonreferral centers. MATERIAL AND METHODS: We performed a two centers prospective data collection (2014-2020) for men with clinically suspected Pca and patients on active surveillance for low-risk Pca that were referred for TRUS biopsy after performing mpMRI of the prostate with a visible lesion. The primary outcome was detection of clinically significant cancer (csPca) defined as ISUP grade group ≥2. Patients were stratified according to biopsy technique and PI-RADS category. RESULTS: The study group included 236 patients of whom 129 (54.9%) were diagnosed with Pca and 82 (34.7%) with csPca (GG ≥ 2) on combined biopsy. The overall detection of csPca was 31% for targeted vs. 25.4% for systematic biopsy with an absolute difference of 5.6% in favor of the fusion technique. No significant difference between the two techniques was observed for detection of benign prostate or GG1 disease. The improved performance of the targeted approach was noted only in patients with PI-RADS 4 and 5 lesions. Of the patients with csPca 10 (12%) were diagnosed only by the systematic biopsy while 20 (24%) were detected only in the fusion biopsy. Systematic biopsy of prostate lobe without MRI lesion detected only 2 cases (∼1%) with high grade disease. CONCLUSIONS: Detection of csPca by mpMRI/TRUS fusion biopsy using the 3D Navigo™ system is feasible. The targeted approach outperforms the systematic one, however the later technique also detects high risk disease and should be included in the biopsy procedure. The overall detection rate (34.9%) of clinically significant prostate cancer by both targeted and systematic sampling is relatively low.


Asunto(s)
Próstata , Neoplasias de la Próstata , Masculino , Humanos , Próstata/diagnóstico por imagen , Próstata/patología , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/patología , Imagen por Resonancia Magnética/métodos , Biopsia Guiada por Imagen/métodos , Antígeno Prostático Específico
2.
Preprint en Inglés | medRxiv | ID: ppmedrxiv-22272727

RESUMEN

ImportanceWide-spread distribution of diagnostics is an integral part of the United States COVID-19 strategy; however, few studies have assessed the effectiveness of this intervention at reducing transmission of community COVID-19. ObjectiveTo assess the impact of the Say Yes! Covid Test (SYCT!) Michigan program, a population-based program that distributed 20,000 free rapid antigen tests within Ann Arbor and Ypsilanti, Michigan in June-August 2021, on community prevalence of SARS-CoV-2. DesignThis ecological study analyzed cases of SARS-CoV-2 from March to October 2021 reported to the Washtenaw County Health Department. SettingWashtenaw County, Michigan ParticipantsAll residents of Washtenaw County InterventionsCommunity-wide distribution of 500,000 rapid antigen tests for SARS-CoV-2 to residents of Ann Arbor and Ypsilanti, Michigan. Each household was limited to one test kit containing 25 rapid antigen tests. Main Outcome and MeasuresCommunity prevalence of SARS-CoV-2, as measured through 7-day average cases, in Ann Arbor and Ypsilanti was compared to the rest of Washtenaw County. A generalized additive model was fitted with non-parametric trends for control and relative differences of trends in the pre-intervention, intervention, and post-intervention periods to compare intervention municipalities of Ann Arbor and Ypsilanti to the rest of Washtenaw County. Model results were used to calculate average cases prevented in the post-intervention period. ResultsIn the post-intervention period, there were significantly lower standardized average cases in the intervention communities of Ann Arbor/Ypsilanti compared to the rest of Washtenaw County (p<0.001). The estimated standardized relative difference between Ann Arbor/Ypsilanti and the rest of Washtenaw County was -0.016 cases per day (95% CI: -0.020 to -0.013), implying that the intervention prevented 40 average cases per day two months into the post-intervention period if trends were consistent. Conclusions and RelevanceMass distribution of rapid antigen tests may be a useful mitigation strategy to combat community transmission of SARS-CoV-2, especially given the recent relaxation of social distancing and masking requirements.

3.
Preprint en Inglés | medRxiv | ID: ppmedrxiv-22273242

RESUMEN

ImportanceWide-spread distribution of rapid-antigen tests is integral to the United States strategy to address COVID-19; however, it is estimated that few rapid-antigen test results are reported to local departments of health. ObjectiveTo characterize how often individuals in six communities throughout the United States used a digital assistant to log rapid-antigen test results and report them to their local Department of Health. DesignThis prospective cohort study is based on anonymously collected data from the beneficiaries of The Say Yes! Covid Test program, which distributed 3,000,000 rapid antigen tests at no cost to residents of six communities between April and October 2021. We provide a descriptive evaluation of beneficiaries use of digital assistant for logging and reporting their rapid antigen test results. Main Outcome and MeasuresNumber and proportion of tests logged and reported to the Department of Health through the digital assistant ResultsA total of 178,785 test kits were ordered by the digital assistant, and 14,398 households used the digital assistant to log 41,465 test results. Overall, a small proportion of beneficiaries used the digital assistant (8%), but over 75% of those who used it reported their rapid antigen test results to their state public health department. The reporting behavior varied between communities and was significantly different for communities that were incentivized for reporting test results (p < 0.001). In all communities, positive tests were less reported than negative tests (60.4% vs 75.5%; p<0.001). Conclusions and RelevanceThese results indicate that app-based reporting with incentives may be an effective way to increase reporting of rapid tests for COVID-19; however, increasing the adoption of the digital assistant is a critical first step.

4.
Clin Genitourin Cancer ; 13(4): 319-327, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26174223

RESUMEN

BACKGROUND: Everolimus, an oral inhibitor of mammalian target of rapamycin (mTOR), and sunitinib, an oral inhibitor of vascular endothelial growth factor (VEGF)/platelet-derived growth factor receptor tyrosine kinase signaling, have both been shown to provide clinical benefit in patients with advanced renal cell carcinoma (RCC). We sought to determine the safety and efficacy of combination therapy with these agents in patients with advanced RCC. METHODS: We conducted a phase 1b dose escalation trial of sunitinib and everolimus in patients with advanced metastatic RCC. Prior nephrectomy was required, and prior radiation or chemotherapy other than VEGF/mTOR-based therapies was permitted. The primary end point was to determine the maximum tolerated dose/recommended phase 2 dose. RESULTS: A total of 4 out of a planned 30 subjects were enrolled onto this study (M:F = 2:2; mean age 52 years, 50% with Karnofsky performance status < 80). The first 3 patients were enrolled onto a 4 + 2 dosing schedule of daily sunitinib 50 mg and weekly everolimus 30 mg. Mean time receiving drug was 99 days. One partial response was seen. Toxicities included mucositis, thrombocytopenia, anemia, fatigue, dehydration, and hypoglycemia. Because of multiple grade 3 to 4 toxicities, the protocol was amended to 2 + 1 dosing of sunitinib 37.5 mg and daily everolimus 5 mg. The first patient on this schedule died from multiorgan failure with septic shock after 1 cycle of treatment. Subsequently, the study was closed. Pharmacokinetic results inconclusively suggest that toxicities could be attributed to the drug exposure. CONCLUSION: Combined use of everolimus and sunitinib in the treatment of metastatic RCC was not well tolerated in this small cohort.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Renales/tratamiento farmacológico , Neoplasias Renales/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Carcinoma de Células Renales/secundario , Everolimus/administración & dosificación , Femenino , Humanos , Indoles/administración & dosificación , Neoplasias Renales/patología , Masculino , Dosis Máxima Tolerada , Persona de Mediana Edad , Pirroles/administración & dosificación , Sunitinib , Resultado del Tratamiento
5.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-354510

RESUMEN

The first three disorders discussed are abnormalities of bone: too little bone in cleidocranial dysplasia caused by mutations in RUNX2; too much bone in fibrodysplasia ossificans progressiva with overexpression of BMP4; and abnormal bone in McCune-Albright syndrome and fibrous dysplasia caused by mutations in GNAS1. Disorders of the sonic hedgehog signaling network are discussed next, including holoprosencephaly and the nevoid basal cell carcinoma syndrome, the former being caused by sonic hedgehog (SHH) mutations and the latter being caused by patched mutations (PTCH).


Asunto(s)
Humanos , Síndrome del Nevo Basocelular , Genética , Anomalías Craneofaciales , Genética , Regulación del Desarrollo de la Expresión Génica , Holoprosencefalia , Genética , Mutación
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