Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
Mais filtros










Intervalo de ano de publicação
1.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 38(1): 17-21, ene.-feb. 2019. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-182351

RESUMO

Objetivo: La tomografía por emisión de positrones con 18-flúor-2-desoxi-D-glucosa (18F-FDG PET/TC) es considerada el método de imagen más preciso para la detección de las metástasis ganglionares o a distancia en el cáncer cervical. El volumen metabólico tumoral (VMT) y la glucólisis tumoral total (GTT) de 18F-FDG PET/TC constituyen mediciones volumétricas de las células tumorales, con captación incrementada de 18F-FDG. Se evaluó el valor pronóstico de VMT y GTT en pacientes con cáncer cervical avanzado (CCA). Métodos: A 38 pacientes con CCA de un hospital universitario terciario se les realizó 18F-FDG PET/TC entre junio de 2009 y diciembre de 2015. Se analizaron diversos factores clínico-patológicos y parámetros de PET, para evaluar su relación con la supervivencia libre de progresión (SLP) y la supervivencia global (SG). Dichos parámetros fueron: valor estandarizado de captación máximo (SUVmáx), valor estandarizado de captación medio (SUVmedio), VMT y GTT del tumor primario, los ganglios pélvicos, los ganglios paraaórticos y el volumen metabólico metastásico, de existir. Resultados: Un total de 38 pacientes con CCA cumplieron los criterios de inclusión. A todos ellos se les realizó 18F-FDG PET/TC con anterioridad a la quimiorradioterapia definitiva. En los análisis univariantes el tamaño tumoral mayor, las metástasis de los ganglios pélvicos, el VMT y la GTT reflejaron una asociación significativa con la SLP y la SG (el VMT HR=1,55, p=0,011 y la GTT HR=1,43, p=0,017 para la SLP; y el VMT HR=1,82, p=0,006 y la GTT HR=1,67, p=0,007 para la SG). Conclusión: La suma de GTT y la suma de VMT pretratamiento parecen ser un factor pronóstico independiente para la SG y la SLP en pacientes con CCA tratados mediante quimiorradioterapia definitiva, y reflejan una medición mejor que la clásica de SUVmáx


Aim: 18-Fluoro-2-deoxy-d-glucose positron emission tomography (18F-FDG PET/CT) is considered to be the most accurate image method of detection of node or distant metastases in cervical cancer. Metabolic tumor volume (MTV) and total lesion glycolysis (TLG) of 18F-FDG PET/CT are volumetric measurements of tumor cells with increased 18F-FDG uptake. The prognostic value of MTV and TLG in patients with advanced cervical cancer (ACC) were evaluated. Methods: 38 patients with ACC from one tertiary university hospital underwent 18F-FDG PET/CT between June 2009 and December 2015. Clinicopathologic factors and various PET parameters were analyzed to evaluate their relationship with recurrence-free survival (RFS) and overall survival (OS). These parameters were: maximum standardized uptake value (SUVmax), mean standardized uptake value (SUV mean), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) of the primary tumor, of the pelvic nodes, of the paraaortic nodes and the metabolic volume of the metastases if any. Results: A total of 38 patients with ACC fulfilled the inclusion criteria. All of them underwent a 18F-FDG PET/CT before definitive chemoradiotherapy. In the univariate analyses higher tumor size, pelvic lymph node metastasis and both MTV and TLG showed a significant association with OS and with RFS (MTV HR=1.55, p=0.011 and TLG HR=1.43, p=0.017 for RFS and MTV HR=1.82, p=0.006 and TLG HR=1.67, p=0.007 for OS). Conclusion: Pretreatment TLG sum and MTV sum seem to be independent prognostic factors for OS and RFS in patients with advanced cervical cancer treated with definitive chemoradiotherapy and they are better than the classic measurement of SUVmax


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Neoplasias do Colo do Útero/diagnóstico por imagem , Glicólise/fisiologia , Carcinoma de Células Escamosas/diagnóstico por imagem , Neoplasias do Colo do Útero/metabolismo , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Biomarcadores Tumorais/análise , Progressão da Doença
2.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30366731

RESUMO

AIM: 18-Fluoro-2-deoxy-d-glucose positron emission tomography (18F-FDG PET/CT) is considered to be the most accurate image method of detection of node or distant metastases in cervical cancer. Metabolic tumor volume (MTV) and total lesion glycolysis (TLG) of 18F-FDG PET/CT are volumetric measurements of tumor cells with increased 18F-FDG uptake. The prognostic value of MTV and TLG in patients with advanced cervical cancer (ACC) were evaluated. METHODS: 38 patients with ACC from one tertiary university hospital underwent 18F-FDG PET/CT between June 2009 and December 2015. Clinicopathologic factors and various PET parameters were analyzed to evaluate their relationship with recurrence-free survival (RFS) and overall survival (OS). These parameters were: maximum standardized uptake value (SUVmax), mean standardized uptake value (SUV mean), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) of the primary tumor, of the pelvic nodes, of the paraaortic nodes and the metabolic volume of the metastases if any. RESULTS: A total of 38 patients with ACC fulfilled the inclusion criteria. All of them underwent a 18F-FDG PET/CT before definitive chemoradiotherapy. In the univariate analyses higher tumor size, pelvic lymph node metastasis and both MTV and TLG showed a significant association with OS and with RFS (MTV HR=1.55, p=0.011 and TLG HR=1.43, p=0.017 for RFS and MTV HR=1.82, p=0.006 and TLG HR=1.67, p=0.007 for OS). CONCLUSION: Pretreatment TLG sum and MTV sum seem to be independent prognostic factors for OS and RFS in patients with advanced cervical cancer treated with definitive chemoradiotherapy and they are better than the classic measurement of SUVmax.


Assuntos
Glicólise/fisiologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Neoplasias do Colo do Útero/metabolismo , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Fluordesoxiglucose F18 , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Prognóstico , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Taxa de Sobrevida , Carga Tumoral , Neoplasias do Colo do Útero/diagnóstico por imagem , Neoplasias do Colo do Útero/mortalidade
3.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 36(6): 229-230, nov.-dic. 2009.
Artigo em Espanhol | IBECS | ID: ibc-96661

RESUMO

Las lesiones del plexo lumbosacro durante el embarazo y el parto son muy poco frecuentes y se han relacionado fundamentalmente con primigestas jóvenes con fetos de gran tamaño. Se suelen presentar en el puerperio inmediato, después de partos prolongados, o bien en partos instrumentales. La forma de aparición más común es como parestesias en miembros inferiores, pérdida de fuerza e incluso como síndrome de pie caído. Presentamos el caso de una paciente con una gestación a término, que acude al servicio de urgencias por síntomas sugestivos de compresión medular a nivel del plexo lumbosacro. Debido al riesgo de isquemia nerviosa se decide la finalización del parto mediante cesárea, que cursó sin incidencias. Tras la cesárea, la paciente empieza a recuperar la función sensitiva y motora con una resolución completa al alta (AU)


Lumbosacral plexus injuries during pregnancy and labor are highly uncommon and have been related to young primiparous women and overweight fetuses. These injuries usually appear during the early puerperium, after a long labor, or after instrumental deliveries. The clinical features are paresthesia in the lower extremities, weakness and drop foot syndrome. We report the case of a woman with term pregnancy who presented to the emergency room with symptoms of lumbosacral plexus compression. Due to the risk of nerve ischemia, a cesarean section was carried out with no adverse events. Immediately after delivery, the patient began to recover sensitivity and mobility, with complete resolution at discharge (AU)


Assuntos
Humanos , Feminino , Gravidez , Adulto , Síndromes de Compressão Nervosa/complicações , Complicações na Gravidez/diagnóstico , Cesárea , Plexo Lombossacral/fisiopatologia , Isquemia/prevenção & controle
6.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 36(1): 19-24, ene. 2009. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-115813

RESUMO

El cáncer de mama es una de las enfermedades malignas más frecuentes en las mujeres. Su incidencia se ha ido incrementando cada año hasta considerarse un problema sanitario de características epidémicas. Alrededor de un 15% de las mujeres desarrolla cáncer de mama a lo largo de su vida. En los últimos años se ha realizado una gran cantidad de trabajos sobre los factores de riesgo y pronósticos de esta enfermedad. En esta revisión de la bibliografía científica, se presenta el estado actual de los factores pronósticos relacionados con la regulación del ciclo celular en el cáncer de mama (AU)


Breast cancer is one of the most common malignancies among women. The incidence of this disease has been increasing yearly and it could now be considered an epidemic disease. Approximately 15% of women will develop this kind cancer during their lifetime. In the last few years, multiple studies have been carried out on the risk and prognostic factors of breast cancer. We provide a review of the scientific literature on the current situation of molecular prognostic factors for breast cancer related to cell cycle control (AU)


Assuntos
Humanos , Feminino , Biomarcadores Tumorais/análise , Ciclo Celular , Neoplasias da Mama/patologia , Prognóstico , Fatores de Risco , Fosfotransferases/análise , Ciclinas/análise , Genes erbB-2 , Genes p53
7.
An Med Interna ; 23(10): 475-7, 2006 Oct.
Artigo em Espanhol | MEDLINE | ID: mdl-17134309

RESUMO

BACKGROUND: Information regarding the use intravenous catheters (IVC) in conventional hospital units and its consequence in terms of intravenous catéter-related bacteremia (ICRB) is scarce. OBJECTIVES: To evaluate the use of IVC in patients admitted in conventional wards of a general hospital and to measure IVCRB incidence in such patients. METHODS: We evaluated during one week IVC use in adult patients admitted in 12 de Octubre Hospital and we calculated la incidence density of ICRB. RESULTS: We evaluated the clinical charts of 731 patients (284 from medical wards and 447 from surgical wards), of which 338 (46.2%) had a peripheral VC inserted and 63 (8.6%) a central IVC. Central IVC had been inserted for a mean time 11.5 days globally (CI 95% 5.57-17.42), being 28.3 in medical wards and 8.32 days in surgical wards (p = 0.2). In 27.7 % of the patients with IVC intravenous antimicrobials was the only reason for the use of such catheters in spite of adequate oral tolerance in 30 % of the patients with central IVC an specific note explaining the reason for implanting such catheter was lacking in the clinical chart. IVCRB was detected in 12/401 patients (3%). The incidence density of IVCRB in central IVC was 8.28 per 1000 catheter-days. CONCLUSIONS: There are some aspects that could be clearly improved regarding the prevention of IVCRB, mostly in the indications, the excess of time those catheters are kept implanted and in the lost chances for catheter withdrawal when switch-therapy could be performed.


Assuntos
Bacteriemia/epidemiologia , Cateteres de Demora/estatística & dados numéricos , Infecção Hospitalar/epidemiologia , Hospitais/estatística & dados numéricos , Procedimentos Desnecessários/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cateterismo Venoso Central/estatística & dados numéricos , Cateterismo Periférico/estatística & dados numéricos , Humanos , Pessoa de Meia-Idade , Infecções Relacionadas à Prótese/epidemiologia , Risco
8.
An. med. interna (Madr., 1983) ; 23(10): 475-477, oct. 2006. ilus
Artigo em Es | IBECS | ID: ibc-049725

RESUMO

Antecedentes: Existe escasa información acerca del uso de catéteres venosos (CVs) en unidades de hospitalización convencionales y la incidencia bacteriemia relacionada con catéteres venosos (BRCV) en dichas unidades. Objetivos: Evaluar el uso de catéteres venosos (CVs) en pacientes ingresados en plantas convencionales de un hospital general y las consecuencias en términos de BRCV. Métodos: Se evaluó durante una semana el uso de catéteres venosos y la densidad de incidencia de BRCV en pacientes adultos ingresados en los servicios de hospitalización del hospital 12 de Octubre de Madrid. Resultados: Se analizaron las historias clínicas de 731 pacientes (284 en servicios médicos y 447 en servicios quirúrgicos), de los cuales 338 (46,2%) eran portadores en ese momento de un CV periférico y 63 (8,6%) de un CV central. La media de días de colocación de un CV central fue globalmente de 11,5 (IC 95% 5,57-17,42), 28,3 en los servicios médicos días y 8,32 en los servicios quirúrgicos (p = 0,2). En el 27,7% de los pacientes con CVs la única indicación para el uso de un CV fue la administración intravenosa de antibióticos a pesar de que el paciente toleraba por vía oral y en un 30% de las ocasiones no había ninguna especificación en la historia que permitiera aclarar cuál era la indicación para la colocación del CV. Se detectó BRCV en 12/401 pacientes (3%). La densidad de incidencia de BRC en CV centrales fue de 8,28 por cada 1.000 días de catéter. Conclusiones: Existen claros aspectos que deben mejorarse en cuanto a la prevención de la BRC, fundamentalmente respecto al ajuste de las indicaciones, el tiempo que permanecen los catéteres centrales implantados y, sobre todo, en cuanto a las oportunidades perdidas de retirar el catéter secuenciando la medicación a vía oral


Background: Information regarding the use intravenous catheters (IVC) in conventional hospital units and its consequence in terms of intravenous catéter-related bacteremia (ICRB) is scarce. Objectives: To evaluate the use of IVC in patients admitted in conventional wards of a general hospital and to measure IVCRB incidence in such patients. Methods: We evaluated during one week IVC use in adult patients admitted in 12 de Octubre Hospital and we calculated la incidence densitity of ICRB. Results: We evaluated the clinical charts of 731 patients (284 from medical wards and 447 from surgical wards), of which 338 (46.2%) had a peripheral VC inserted and 63 (8.6%) a central IVC. Central IVC had been inserted for a mean time 11.5 days globally (CI 95% 5.57-17.42), being 28.3 in medical wards and 8.32 days in surgical wards (p=0.2). In 27.7 % of the patients with IVC intravenous antimicrobials was the only reason for the use of such catheters in spite of adequate oral tolerance in 30 % of the patients with central IVC an specific note explaining the reason for implanting such catheter was lacking in the clinical chart. IVCRB was detected in 12/401 patients (3%). The incidence density of IVCRB in central IVC was 8.28 per 1000 catheter-days. Conclusions: There are some aspects that could be clearly improved regarding the prevention of IVCRB, mostly in the indications, the excess of time those catheters are kept implanted and in the lost chances for catheter withdrawal when switch-therapy could be performed


Assuntos
Adolescente , Adulto , Idoso , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Humanos , Bacteriemia/epidemiologia , Cateteres de Demora , Infecção Hospitalar/epidemiologia , Hospitais/estatística & dados numéricos , Procedimentos Desnecessários/estatística & dados numéricos , Cateterismo Venoso Central , Cateterismo Periférico , Infecções Relacionadas à Prótese/epidemiologia , Risco
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...