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1.
Rev Sci Instrum ; 95(5)2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38690984

RESUMO

This paper presents the development of a novel high-pressure/high-temperature reactor cell dedicated to the characterization of catalysts using synchrotron x-ray absorption spectroscopy under operando conditions. The design of the vitreous carbon reactor allows its use as a plug-flow reactor, monitoring catalyst samples in a powder form with a continuous gas flow at high-temperature (up to 1000 °C) and under high pressure (up to 1000 bar) conditions, depending on the gas environment. The high-pressure/high-temperature reactor cell incorporates an automated gas distribution system and offers the capability to operate in both transmission and fluorescence detection modes. The operando x-ray absorption spectroscopy results obtained on a bimetallic InCo catalyst during CO2 hydrogenation reaction at 300 °C and 50 bar are presented, replicating the conditions of a conventional microreactor. The complete setup is available for users and permanently installed on the Collaborating Research Groups French Absorption spectroscopy beamline in Material and Environmental (CRG-FAME) sciences and French Absorption spectroscopy beamline in Material and Environmental sciences at ultra-high dilution (FAME-UHD) beamlines (BM30 and BM16) at the European Synchrotron Radiation Facility in Grenoble, France.

2.
Clin Pract ; 14(1): 250-264, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38391406

RESUMO

INTRODUCTION: Mental disorders, smoking, or alcoholism and benign prostate disease are highly prevalent in men. AIMS: To identify the relationship between mental disorders, smoking, or alcoholism and benign prostate disease. METHODOLOGY: A prospective multicenter study that evaluated prostate health status in 558 men from the community. Groups: GP-men who request a prostate health examination and whose medical history includes a mental disorder, smoking, or alcoholism prior to a diagnosis of benign prostate disease; GU-men who request a prostate health examination and whose medical history includes a benign prostate disease prior to a diagnosis of mental disorder, smoking, or alcoholism. VARIABLES: age, body mass index (BMI), prostate specific antigen (PSA), follow-up of the mental disorder, smoking or alcoholism, time elapsed between urological diagnosis and the mental disorder, smoking or alcoholism diagnosis, status of the urological disease (cured or not cured), concomitant diseases, surgical history, and concomitant treatments. Descriptive statistics, Student's t-test, Chi2, multivariate analysis. RESULTS: There were no mental disorders, smoking, or alcoholism in 51.97% of men. Anxiety, smoking, major depressive disorder, pathological insomnia, psychosis, and alcoholism were identified in 19.71%, 13.26%, 5.73%, 4.30%, 2.87%, and 2.15% of individuals, respectively. Nonbacterial prostatitis (31.54%), urinary tract infection (other than prostatitis, 24.37%), prostatic intraepithelial neoplasia (13.98%), and prostatodynia (1.43%) were prostate diseases. Unresolved symptomatic benign prostate disease was associated with anxiety, depression, and psychosis (p = 0.002). Smoking was the disorder that men managed to eliminate most frequently. The dominant disorder in patients with symptomatic benign prostatic disease was alcoholism (p = 0.006). CONCLUSIONS: Unresolved symptomatic benign prostatic disease is associated with anxiety, depression, and psychosis. Alcoholism is associated with a worse prognosis in the follow-up of symptomatic benign prostatic disease.

3.
Protist ; 174(6): 125995, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37995544

RESUMO

The present study documents the discovery of the first European population of Colpodidium caudatum (Ciliophora, Colpodidiidae) in a water drain in a school playground in Manzanares (Ciudad Real, Spain). This species has been documented on every continent except Antarctica and Europe, until now. The ciliate was isolated from wet run-off soil collected from the water drain and was grown in semi-permanent cultures in the laboratory. The infraciliature of the ciliate was revealed using silver carbonate impregnation and cell measurements were taken from living and silver-impregnated specimens. A comparative analysis of published data from various populations of C. caudatum across the globe showed high intraspecific morphological variability in this species. To differentiate between species within the Colpodidium genus, a dichotomous key is presented. This investigation shows that C. caudatum is a ciliate that is found all over the world and is particularly associated with terrestrial habitats that are periodically flooded.


Assuntos
Cilióforos , Ecossistema , Europa (Continente) , Água , Solo
4.
Materials (Basel) ; 16(17)2023 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-37687437

RESUMO

A growing fatigue crack gives rise to a plastic enclave that envelops the crack and can exert a shielding effect on the crack from the global elastic stress field driving fatigue propagation. This work presents the potential of the CJP model of crack tip fields to investigate the plasticity-induced shielding effects on growing fatigue cracks as well as its ability to characterise the size and shape of the plastic zone generated at the tip of a growing fatigue crack. The model was specifically developed to consider the influence of the plastic enclave generated around a fatigue crack on the surrounding elastic material. Different aspects related to fracture mechanics and its implications for fatigue crack growth have been investigated, namely plasticity-induced crack shielding, the retardation effect induced on fatigue crack growth due to the application of an overload and the estimate of the size and shape of the crack tip plastic zone. The model has been successfully applied by analysing displacement fields experimentally measured by DIC in different CT specimens made of 2024-T3 aluminium alloy and commercially pure titanium. Results presented in this work intend to contribute to a better understanding of the shielding effects during fatigue crack growth.

5.
Materials (Basel) ; 16(16)2023 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-37629998

RESUMO

In this work, the Christopher-James-Patterson crack tip field model is used to infer and assess the effective stress intensity factor ranges measured from thermoelastic and digital image correlation data. The effective stress intensity factor range obtained via the Christopher-James-Patterson model, which provides an effective rationalization of fatigue crack growth rates, is separated into two components representing the elastic and retardation components to assess shielding phenomena on growing fatigue cracks. For this analysis, fatigue crack growth tests were performed on Compact-Tension specimens manufactured in pure grade 2 titanium for different stress ratio levels, and digital image correlation and thermoelastic measurements were made for different crack lengths. A good agreement (~2% average deviation) was found between the results obtained via thermoelastic stress analysis and digital image correlation indicating the validity of the Christopher-James-Patterson model to investigate phenomena in fracture mechanics where plasticity plays an important role. The results show the importance of considering crack-shielding effects using the Christopher-James-Patterson model beyond considering an exclusive crack closure influence.

6.
J Clin Med ; 11(13)2022 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-35806900

RESUMO

The objective of this subset analysis was to evaluate and compare the efficacy and tolerability of two combination treatments for men with moderate-to-severe lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH). Data were from a real-world, open-label, prospective, and multicenter study performed in outpatient urology clinics. Men with moderate-to-severe LUTS/BPH received 6-month treatment with tamsulosin (TAM) in combination with either the hexanic extract of S. repens (HESr) or a 5-alpha-reductase inhibitor (5ARI). Changes in urinary symptoms and quality of life were measured using the IPSS and BII questionnaires, respectively. Treatment tolerability was assessed by recording adverse effects (AEs). Patients in the two study groups were matched using iterative and propensity score matching approaches. After iterative matching, data were available from 136 patients (n = 68 treated with TAM + 5ARI, n = 68 with TAM + HESr). After 6 months of treatment, mean (SD) IPSS total score improved by 7.7 (6.3) and 6.7 (5.0) points in the TAM + 5ARI and TAM + HESr groups, respectively (p = 0.272); mean BII total scores improved by 3.1 (2.9) and 2.9 (2.4) points (p = 0.751), respectively. AEs were reported by 26.5% and 10.3% of patients in the same groups, mostly affecting sexual function (p < 0.027). When used in a real-world setting to treat patients with moderate-severe LUTS/BPH, 6-month treatment with TAM + HESr was as effective as TAM + 5ARI, but with better tolerability.

7.
Cancers (Basel) ; 14(10)2022 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-35625981

RESUMO

In this study, we have evaluated whether 57 genome-wide association studies (GWAS)-identified common variants for type 2 diabetes (T2D) influence the risk of developing prostate cancer (PCa) in a population of 304 Caucasian PCa patients and 686 controls. The association of selected single nucleotide polymorphisms (SNPs) with the risk of PCa was validated through meta-analysis of our data with those from the UKBiobank and FinnGen cohorts, but also previously published genetic studies. We also evaluated whether T2D SNPs associated with PCa risk could influence host immune responses by analysing their correlation with absolute numbers of 91 blood-derived cell populations and circulating levels of 103 immunological proteins and 7 steroid hormones. We also investigated the correlation of the most interesting SNPs with cytokine levels after in vitro stimulation of whole blood, peripheral mononuclear cells (PBMCs), and monocyte-derived macrophages with LPS, PHA, Pam3Cys, and Staphylococcus Aureus. The meta-analysis of our data with those from six large cohorts confirmed that each copy of the FTOrs9939609A, HNF1Brs7501939T, HNF1Brs757210T, HNF1Brs4430796G, and JAZF1rs10486567A alleles significantly decreased risk of developing PCa (p = 3.70 × 10-5, p = 9.39 × 10-54, p = 5.04 × 10-54, p = 1.19 × 10-71, and p = 1.66 × 10-18, respectively). Although it was not statistically significant after correction for multiple testing, we also found that the NOTCH2rs10923931T and RBMS1rs7593730 SNPs associated with the risk of developing PCa (p = 8.49 × 10-4 and 0.004). Interestingly, we found that the protective effect attributed to the HFN1B locus could be mediated by the SULT1A1 protein (p = 0.00030), an arylsulfotransferase that catalyzes the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. In addition to these results, eQTL analysis revealed that the HNF1Brs7501939, HNF1Brs757210, HNF1Brs4430796, NOTCH2rs10923931, and RBMS1rs7593730 SNPs influence the risk of PCa through the modulation of mRNA levels of their respective genes in whole blood and/or liver. These results confirm that functional TD2-related variants influence the risk of developing PCa, but also highlight the need of additional experiments to validate our functional results in a tumoral tissue context.

8.
J Clin Med ; 11(4)2022 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-35207238

RESUMO

We investigated changes in symptoms and quality of life (QoL) in men with moderate-to-severe lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH) receiving the hexanic extract of Serenoa repens (HESr) and compared results with a matched group on watchful waiting (WW). Data was from a real-world, open-label, prospective, multicenter study. This sub-group analysis included patients with moderate-to-severe symptoms receiving either the HESr 320 mg/daily for six months (HESr) or who remained untreated for LUTS/BPH (WW). Changes in urinary symptoms and QoL were measured by IPSS and BII questionnaires. Two statistical approaches (iterative matching and propensity score pairing) were used to maximize between-group comparability at baseline. Tolerability was assessed in the HESr group. After iterative matching, data for analysis was available for 783 patients (102 WW, 681 HESr). IPSS scores improved by a mean (SD) of 3.8 (4.4) points in the HESr group and by 2.2 (4.5) points in the WW group (p = 0.002). Changes in BII score were 1.8 (2.4) points and 1.0 (2.2) points, respectively (p < 0.001). Three patients (0.9%) treated with the HESr reported mild adverse effects. Moderate-severe LUTS/BPH patients treated for six months with the HESr showed greater improvements in symptoms and QoL than matched patients on WW, with a very low rate of adverse effects.

9.
Sci Rep ; 11(1): 19401, 2021 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-34588509

RESUMO

In a subset analysis of data from a 6-month, multicenter, non-interventional study, we compared change in symptoms and quality of life (QoL), and treatment tolerability, in men with moderate to severe lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH) receiving tamsulosin (TAM, 0.4 mg/day) or the hexanic extract of Serenoa repens (HESr, 320 mg/day) as monotherapy. Symptoms and QoL were assessed using the IPSS and BII questionnaires, respectively. Patients in the treatment groups were matched using two statistical approaches (iterative and propensity score matching). Within the iterative matching approach, data was available from a total of 737 patients (353 TAM, 384 HESr). After 6 months, IPSS scores improved by a mean (SD) of 5.0 (4.3) points in the TAM group and 4.5 (4.7) points in the HESr group (p = 0.117, not significant). Improvements in QoL were equivalent in the two groups. TAM patients reported significantly more adverse effects than HESr patients (14.7% vs 2.1%; p < 0.001), particularly ejaculation dysfunction and orthostatic hypotension. These results show that HESr is a valid treatment option for men with moderate/severe LUTS/BPH; improvements in urinary symptoms and QoL were similar to those observed for tamsulosin, but with considerably fewer adverse effects.


Assuntos
Sintomas do Trato Urinário Inferior/tratamento farmacológico , Extratos Vegetais/administração & dosagem , Hiperplasia Prostática/tratamento farmacológico , Tansulosina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fitoterapia/métodos , Qualidade de Vida , Serenoa , Resultado do Tratamento
10.
Neural Netw ; 144: 113-128, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34487958

RESUMO

The aim of this paper is to propose a novel prediction model based on an ensemble of deep neural networks adapting the extremely randomized trees method originally developed for random forests. The extra-randomness introduced in the ensemble reduces the variance of the predictions and improves out-of-sample accuracy. As a byproduct, we are able to compute the uncertainty about our model predictions and construct interval forecasts. Some of the limitations associated with bootstrap-based algorithms can be overcome by not performing data resampling and thus, by ensuring the suitability of the methodology in low and mid-dimensional settings, or when the i.i.d. assumption does not hold. An extensive Monte Carlo simulation exercise shows the good performance of this novel prediction method in terms of mean square prediction error and the accuracy of the prediction intervals in terms of out-of-sample prediction interval coverage probabilities. The advanced approach delivers better out-of-sample accuracy in experimental settings, improving upon state-of-the-art methods like MC dropout and bootstrap procedures.


Assuntos
Algoritmos , Redes Neurais de Computação , Método de Monte Carlo , Probabilidade , Incerteza
11.
Pap Reg Sci ; 100(5): 1209-1229, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34226811

RESUMO

This paper proposes an ensemble predictor for the weekly increase in the number of confirmed COVID-19 cases in the city of New York at zip code level. Within a Bayesian model averaging framework, the baseline is a Poisson regression for count data. The set of covariates includes autoregressive terms, spatial effects, and demographic and socioeconomic variables. Our results for the second wave of the coronavirus pandemic show that these regressors are more significant to predict the number of new confirmed cases as the pandemic unfolds. Both pointwise and interval forecasts exhibit strong predictive ability in-sample and out-of-sample.


Este artículo propone un predictor de conjunto para el aumento semanal del número de casos confirmados de COVID­19 en la ciudad de Nueva York a nivel de código postal. Dentro de un marco de promediación de modelo bayesiano, la línea de base es una regresión de Poisson para datos de recuento. El conjunto de covariables incluye términos autorregresivos, efectos espaciales y variables demográficas y socioeconómicas. Los resultados para la segunda ola de la pandemia de coronavirus muestran que estos regresores son más significativos para predecir el número de nuevos casos confirmados a medida que se desarrolla la pandemia. Tanto las previsiones puntuales como las de intervalo muestran una fuerte capacidad de predicción, tanto dentro como fuera de la muestra.

14.
Arch Esp Urol ; 73(10): 869-871, 2020 12.
Artigo em Espanhol | MEDLINE | ID: mdl-33269705

RESUMO

Archivos Españoles de Urología finaliza el año 2020, un año difícil que todos recordaremos con tristeza como el año del Covid, editando un Número Monográfico que es pura Ciencia y Novedad ,y que también tendrá un largo recorrido en la Memoria de cuantos lo estudien o lo lean, titulado: NUEVOS PARADIGMAS EN EL CÁNCER VESICAL La importancia y relevancia del Tema seleccionado es y será notoria en tanto podemos afirmar con toda seguridad que durante 2021 y siguientes años, los artículos contenidos en el mismo, serán motivo de referencia, presentaciones, ponencias y debates en todos los foros nacionales e internacionales en los que se aborde el manejo y tratamiento del Cáncer Vesical...


Archivos Españoles de Urología finaliza el año 2020, un año difícil que todos recordaremos con tristeza como el año del Covid, editando un Número Monográfico que es pura Ciencia y Novedad ,y que también tendrá un largo recorrido en la Memoria de cuantos lo estudien o lo lean, titulado: NUEVOS PARADIGMAS EN EL CÁNCER VESICAL La importancia y relevancia del Tema seleccionado es y será notoria en tanto podemos afirmar con toda seguridad que durante 2021 y siguientes años, los artículos contenidos en el mismo, serán motivo de referencia, presentaciones, ponencias y debates en todos los foros nacionales e internacionales en los que se aborde el manejo y tratamiento del Cáncer Vesical...


Assuntos
Editoração , Neoplasias da Bexiga Urinária , COVID-19 , Humanos , Pandemias , Editoração/tendências
16.
J Clin Med ; 9(9)2020 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-32917008

RESUMO

To investigate whether tamsulosin (TAM) and the hexanic extract of Serenoa repens (HESr) are more effective in combination than as monotherapy in men with moderate-to-severe lower urinary tract symptoms associated with benign prostatic hyperplasia (LUTS/BPH). Subset analysis of data from a 6-month, multicenter observational study. Patients received either tamsulosin (0.4 mg/day) or HESr (320 mg/day) alone or in combination. Primary endpoints were change in symptoms and quality of life. Tolerability was also assessed. Seven hundred and nine patients were available for intention to treat (ITT) analysis, 263 treated with tamsulosin, 262 with HESr, and 184 with TAM + HESr. After 6 months, International Prostate Symptom Score (IPSS) scores improved by a mean (standard deviation) of 7.2 (5.0) points in the TAM + HESr group compared to 5.7 (4.3) points with TAM alone and 5.4 (4.6) points with HESr (p < 0.001). Quality of life showed greatest improvement with combination therapy (p < 0.02). Adverse effects were reported by 1.9% of patients receiving HESr, 13.3% receiving TAM, and 12.0% receiving TAM + HESr (p < 0.001). In men with moderate/severe LUTS/BPH, combination treatment with TAM + HESr produced more effective symptom relief and greater improvement in quality of life than with either treatment alone, with acceptable tolerability.

17.
Arch Esp Urol ; 73(5): 353-359, 2020 Jun.
Artigo em Espanhol | MEDLINE | ID: mdl-32538804

RESUMO

INTRODUCTION: The crisis in the SARSCoV-2 coronavirus causing COVID-19 is putting health systems around the world to the test. In a great effort to standardize the management and treatment guidelines, the different health authorities and scientific associations have tried to issue recommendations on how to act in this new and complex scenario. OBJECTIVE: To synthesize the existing evidence and recommendations about urological emergency surgery during the COVID-19 pandemic situation. Furthermore, we propose a general action protocol for these patients. MATERIAL AND METHODS: The document is based ont he scarce evidence on SARS / Cov-2 and the experience of the authors in the management of COVID-19 in their institutions, including specialists from Andalusia, Cantabria, Madrid and the Basque Country. A web and PubMed search was performed using the keywords "SARS-CoV-2", "COVID19",  "COVID Urology", "COVID19 surgery" and "emergency care". A narrative review of the literature was carried out until April 30, 2020, including only articles and documents written in Spanish and English. After the nominal group technique modified due to the extraordinary restrictions, a first draft was made to unify criteria. Finally, a definitive version was made, agreed by all the authors on May 12, 2020. RESULTS: General principles of action are set out, as well as specific recommendations for the most frequent urgent urological procedures. CONCLUSIONS: Given the exceptional nature of the situation, there is a lack of evidence regarding the optimal management of the patient with urgent urological pathology. The information is changing, as the epidemiological knowledge of the disease advances. The establishment of multidisciplinary surgical committees that develop and implement action protocols appropriate to the different resources and particular situations of each center is recommended. Likewise, these committees must individually assess each possible urological surgical emergency situation and ensure compliance with protective measures for the patient and other healthcare personnel.


INTRODUCCIÓN: La crisis del coronavirus SARS-CoV-2 causante del COVID-19 está poniendoa prueba los sistemas sanitarios de todo el mundo. En un gran esfuerzo por estandarizar las pautas de manejo y tratamiento, las distintas autoridades sanitarias y asociaciones científicas han tratado de dictar unas recomendaciones sobre como actuar en este nuevo y complejo escenario.OBJETIVO: Sintetizar la evidencia y recomendaciones existentes acerca de la cirugía de urgencia urológica durante la situación de pandemia COVID-19. Además, proponemos un protocolo de actuación general para estos pacientes. MATERIAL Y MÉTODOS: El documento se basa en la escasa evidencia sobre SARS/Cov-2 y la experiencia de los autores en el manejo de COVID-19 en sus instituciones incluyendo especialistas de Andalucía, Cantabria, Madrid y País Vasco. Se realizó una búsqueda web y en PubMed utilizando las palabras clave "SARSCoV-2", "COVID19", "COVID Urology", "COVID19 surgery" y "emergency care". Se realizó una revisión narrativa de la literatura hasta el día 30 de Abril de2020 incluyendo solo artículos y documentos escritos en lengua española e inglesa. Tras técnica de grupo nominal modificada debido a las restricciones extraordinarias se realizó un primer borrador para unificar criterios. Finalmente, se realizó una versión definitiva, consensuada por todos los autores el 12 Mayo 2020. RESULTADOS: Se exponen unos principios generales de actuación, así como unas recomendaciones específicas para los procedimientos urológicos urgentes más frecuentes.CONCLUSIONES: Dado el carácter excepcional de la situación, existe un déficit de evidencia respecto al óptimo manejo del paciente con patología urológica urgente. La información es cambiante, según avanza el conocimiento epidemiológico de la enfermedad. Es recomendable el establecimiento de comités multidisciplinares quirúrgicos que desarrollen e implementen protocolos de actuación adecuados a los distintos recursos y situaciones particulares de cada centro. Del mismo modo, estos comités deben evaluar de forma individualizada cada posible situación de urgencia quirúrgica urológica y velar por el cumplimiento de las medidas de protección para el paciente y resto del personal sanitario.


Assuntos
Infecções por Coronavirus , Tratamento de Emergência , Pandemias , Pneumonia Viral , Procedimentos Cirúrgicos Operatórios , Betacoronavirus , COVID-19 , Infecções por Coronavirus/epidemiologia , Humanos , Masculino , Pneumonia Viral/epidemiologia , SARS-CoV-2 , Espanha/epidemiologia
18.
Arch. esp. urol. (Ed. impr.) ; 73(5): 353-359, jun. 2020. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-189691

RESUMO

INTRODUCCIÓN: La crisis del coronavirus SARS-CoV-2 causante del COVID-19 está poniendoa prueba los sistemas sanitarios de todo el mundo. En un gran esfuerzo por estandarizar las pautas de manejo y tratamiento, las distintas autoridades sanitarias y asociaciones científicas han tratado de dictar unas recomendaciones sobre como actuar en este nuevo y complejo escenario. OBJETIVO: Sintetizar la evidencia y recomendaciones existentes acerca de la cirugía de urgencia urológica durante la situación de pandemia COVID-19. Además, proponemos un protocolo de actuación general para estos pacientes. MATERIAL Y MÉTODOS: El documento se basa en la escasa evidencia sobre SARS/Cov-2 y la experiencia de los autores en el manejo de COVID-19 en sus instituciones incluyendo especialistas de Andalucía, Cantabria, Madrid y País Vasco. Se realizó una búsqueda web y en PubMed utilizando las palabras clave "SARSCoV-2", "COVID19", "COVID Urology", "COVID19 surgery" y "emergency care". Se realizó una revisión narrativa de la literatura hasta el día 30 de Abril de2020 incluyendo solo artículos y documentos escritos en lengua española e inglesa. Tras técnica de grupo nominal modificada debido a las restricciones extraordinarias se realizó un primer borrador para unificar criterios. Finalmente, se realizó una versión definitiva, consensuada por todos los autores el 12 Mayo 2020. RESULTADOS: Se exponen unos principios generales de actuación, así como unas recomendaciones específicas para los procedimientos urológicos urgentes más frecuentes. CONCLUSIONES: Dado el carácter excepcional de la situación, existe un déficit de evidencia respecto al óptimo manejo del paciente con patología urológica urgente. La información es cambiante, según avanza el conocimiento epidemiológico de la enfermedad. Es recomendable el establecimiento de comités multidisciplinares quirúrgicos que desarrollen e implementen protocolos de actuación adecuados a los distintos recursos y situaciones particulares de cada centro. Del mismo modo, estos comités deben evaluar de forma individualizada cada posible situación de urgencia quirúrgica urológica y velar por el cumplimiento de las medidas de protección para el paciente y resto del personal sanitario


INTRODUCTION: The crisis in the SARSCoV-2 coronavirus causing COVID-19 is putting health systems around the world to the test. In a great effort to standardize the management and treatment guidelines, the different health authorities and scientific associations have tried to issue recommendations on how to act in this new and complex scenario. OBJECTIVE: To synthesize the existing evidence and recommendations about urological emergency surgery during the COVID-19 pandemic situation. Furthermore, we propose a general action protocol for these patients. MATERIAL AND METHODS: The document is based on the scarce evidence on SARS/Cov-2 and the experience of the authors in the management of COVID-19 in their institutions, including specialists from Andalusia, Cantabria, Madrid and the Basque Country. A web and PubMed search was performed using the keywords "SARS-CoV-2", "COVID19", "COVID Urology", "COVID19 surgery" and "emergency care". A narrative review of the literature was carried out until April 30, 2020, including only articles and documents written in Spanish and English. After the nominal group technique modified due to the extraordinary restrictions, a first draft was made to unify criteria. Finally, a definitive version was made, agreed by all the authors on May 12, 2020. RESULTS: General principles of action are set out, as well as specific recommendations for the most frequent urgent urological procedures. CONCLUSIONS: Given the exceptional nature of the situation, there is a lack of evidence regarding the optimal management of the patient with urgent urological pathology. The information is changing, as the epidemiological knowledge of the disease advances. The establishment of multidisciplinary surgical committees that develop and implement action protocols appropriate to the different resources and particular situations of each center is recommended. Likewise, these committees must individually assess each possible urological surgical emergency situation and ensure compliance with rotective measures for the patient and other healthcare personnel


Assuntos
Humanos , Infecções por Coronavirus/prevenção & controle , Pneumonia Viral/prevenção & controle , Pandemias , Doenças Urológicas/cirurgia , Serviços Médicos de Emergência/normas
19.
Med. clín (Ed. impr.) ; 153(2): 56-62, jul. 2019. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-183364

RESUMO

Objetivo: Evaluar la capacidad de la 18F-fluorometilcolina (FCH) tomografía por emisión de positrones/tomografía computarizada (PET/TC) en la detección de la enfermedad en la recidiva bioquímica del cáncer de próstata, su correlación con la cinética del antígeno prostático específico (PSA) y la influencia de la terapia hormonal antiandrogénica. Pacientes y métodos: Estudio observacional y retrospectivo, que incluyó a pacientes con cáncer de próstata y criterios de recidiva bioquímica y/o resistencia a la castración, según la Asociación Europea de Urología. Los resultados de la FCH PET/TC se categorizaron en dos grupos (positivo vs. negativo) utilizando como gold estándar la anatomía patológica, otras pruebas de imagen y/o seguimiento clínico. Se estudió la relación entre la FCH PET/TC y la cinética del PSA (PSA en el momento de la exploración [trigger-PSA], tiempo de duplicación [PSAdt] y velocidad de ascenso [PSAva]) y se analizó la influencia de la terapia hormonal. Resultados: Se incluyeron 203 pacientes. La tasa de detección global de la FCH PET/TC fue del 43,3%. El grupo de pacientes con FCH PET/TC positiva mostró una cinética de PSA más agresiva (PSAdt: 7,5±7,5meses y PSAva 8,37±14,8ng/ml/a) que el grupo FCH PET/TC negativa (PSAdt: 14,5±7,6meses y PSAva: 1,8±3,7ng/ml/a). La tasa de detección de la FCH-PET/TC en el subgrupo con resistencia a la castración fue del 89,1%, significativamente mayor a la tasa del 29,9% del grupo con tratamiento curativo, p <0,001. Conclusiones: La FCH PET/TC es útil en la detección de la enfermedad en la recidiva bioquímica del cáncer de próstata, especialmente en los pacientes con terapia hormonal o cinética del PSA más agresiva


Purpose: To evaluate the capacity of 18f-fluorocholine positron emission tomography/computed tomography (FCH PET/CT) to detect biochemical recurrence of prostate cancer and to determine the correlation with PSA kinetics and influence of antiandrogen hormone therapy. Patients and methods: Observational and retrospective study, which included patients with prostate cancer and criteria for biochemical recurrence and/or resistance to castration, according to the European Association of Urology. FCH PET/CT results were classified as positive or negative, using as gold standard the pathology report, findings of other imaging test, and/or clinical follow-up results. The correlation between FCH PET/CT and PSA kinetics (PSA at the time of exploration [PSA-trigger], doubling time [PSAdt] and velocity [PSAva]) was studied and the influence of hormone therapy was analysed. Results: The study included 203 patients. The FCH PET/CT detection rate was 43.3%. The group of patients with FCH PET/CT positive showed more aggressive PSA kinetics (PSAdt: 7.5 months and PSAva 8.37±14.8ng/ml/a) than the FCH PET/CT negative group (PSAdt: 14.5±7.6 months and PSAva: 1.8±3.7ng/ml/a). The detection rate of FCH PET/CT in the subgroup with castration resistance was 89.1%, significantly higher than in the group with radical treatment at 29.9%, p<.001. Conclusions: FCH PET/CT is useful to detect biochemical recurrence of prostate cancer, especially in patients who receive hormone therapy or more aggressive PSA kinetics


Assuntos
Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Fluordesoxiglucose F18/administração & dosagem , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Antígeno Prostático Específico/farmacocinética , Estudos Retrospectivos , Recidiva Local de Neoplasia/complicações , Recidiva Local de Neoplasia/terapia , Análise de Dados , Análise de Variância , Curva ROC
20.
Arch Esp Urol ; 72(4): 360-366, 2019 May.
Artigo em Espanhol | MEDLINE | ID: mdl-31070131

RESUMO

OBJECTIVE: Following first-line treatment progression in metastatic renal carcinoma, different options for second-line treatment are available, with axitinib being one of them. The objective of this article is to evaluate the results of Axitinib in a real practice setting. METHODS: From December 2011 to October 2016, we treated 19 patients with CCRM with Axitinib, 3 patients in third line and 16 patients in second line after progression on Sunitinib or Pazopanib. We performed a retrospective study of the last 16 patients, analyzing the effectiveness and safety of the drug. RESULTS: The median progression-free survival (PFS) was 9 months and the median overall survival with 8 dead patients was 59 months. Overall, toxicity by Axitinib was very common, diarrhea 87.5%, asthenia 75%, dysphonia 56.25%, hypertension 37.5% and anorexia 37.5%, although most are grade 1-2 toxicities controlled with hygiene-diet measures and treatment recommendations. CONCLUSIONS: Axitinib is a drug that has been shown to increase PFS after 1st line progression, with a tolerable toxic profile. With the approval of nivolumab and cabozantinib, the place of Axitinib in sequential therapy is yet to be defined.


OBJETIVO: Tras progresión de primera línea de tratamiento en el carcinoma renal metastásico hay disponibles distintas opciones de tratamiento de segunda línea, siendo Axitinib una de ellas. MÉTODOS: Desde diciembre de 2011 hasta octubre de 2016, hemos tratado a 19 pacientes con CCRm con Axitinib, 3 pacientes en tercera línea y 16 en segunda línea tras progresión de Sunitinib o Pazopanib. Realizamos un estudio retrospectivo de los últimos 16 pacientes, analizando efectividad y seguridad del fármaco. RESULTADOS: La mediana de la supervivencia libre de progresión (SLP) fue de 9 meses y la mediana de supervivencia global con 8 pacientes fallecidos fue de 59 meses. La toxicidad global por Axitinib fue muy frecuente, diarrea 87,5%, astenia 75%, disfonía 56,25%, HTA 37,5% y anorexia 37,5%, aunque en su mayoría fueron toxicidades grado 1-2 controlados con medidas higiénico dietéticas y recomendaciones de tratamiento. CONCLUSIONES: Axitinib es un fármaco que ha demostrado aumentar la SLP tras progresión de 1ª línea, con un perfil toxico tolerable. Con la aprobación de nivolumab y cabozantinib, el lugar de Axitinib en la terapia secuencial está por definir.


Assuntos
Antineoplásicos , Axitinibe , Carcinoma de Células Renais , Neoplasias Renais , Antineoplásicos/uso terapêutico , Axitinibe/uso terapêutico , Carcinoma de Células Renais/tratamento farmacológico , Humanos , Imidazóis , Indazóis , Neoplasias Renais/tratamento farmacológico , Estudos Retrospectivos , Resultado do Tratamento
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