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3.
O.F.I.L ; 32(4): 335-340, 2022. tab
Artigo em Espanhol | IBECS | ID: ibc-212265

RESUMO

Introducción: Los inhibidores del checkpoint inmunológico (ICIs) han conseguido buenos resultados en salud, pero pueden presentar eventos adversos inmunorelacionados (EAir), en ocasiones, graves y poco predecibles.Objetivo principal: Identificar los EAir asociados al uso de pembrolizumab y conocer su incidencia, características y tratamiento, en nuestro centro.Material y métodos: Estudio observacional y retrospectivo que incluye pacientes con cáncer oncohematológico tratados con pembrolizumab, excluyendo los que participaron en ensayos clínicos. Se recogen variables sociodemográficas, clínicas, y las relacionadas con el tratamiento, incluyendo EAir. El tratamiento estadístico se realizó mediante el paquete estadístico STATA/IC 12.1.Resultados: Se incluyeron 31 pacientes, 81% varones, con una mediana de edad de 67 años (rango 26-88), siendo los diagnósticos mayoritarios: cáncer de pulmón (55%) y melanoma (16%). 81% de los pacientes presentaban estadio IV y el 71%, PDL-1 positivo. La mediana de duración fue de 3,4 meses (rango 0,7-26). El 77% de los pacientes experimentaron EAir y las más frecuentes fueron: astenia, linfopenia e hipotiroidismo. Respecto a la gravedad, el 91% fueron leves o moderadas y en el 9% grado 3. Las reacciones adversas más graves fueron encefalitis, nefritis, anemia grado 3, liquen plano y polineuropatía motora desmielinizante. 11 de los pacientes suspendieron pembrolizumab, de los cuales el 36% fue de forma definitiva. Conclusión: La mayoría de los EAir que aparecen son leves, aunque los casos graves observados y el tiempo de aparición variable hacen que sea importante realizar una monitorización continua de la toxicidad de estos fármacos durante tratamiento, incluso después de suspenderlo. (AU)


Background: Immune checkpoint inhibitors (ICIs) have achieved good health outcomes but it presents immunorelated adverse events (AEsir), sometimes serious and not very predictable.Main objective: To identify the immune-mediated adverse effects (irAE) associated with the use of pembrolizumab and to know its incidence, characteristics and treatment in our center.Material and methods: Observational and retrospective study including oncohematological cancer patients treated with pembrolizumab, excluding those who participated in clinical trials. Sociodemographic, clinical, and treatment-related variables were collected, including EAir. Statistical treatment was performed using the STATA/IC 12.1 statistical package.Results: 31 patients, 81% male, with a median age of 67 years (range 26-88), the main diagnoses being lung cancer (55%) and melanoma (16%). Eighty-one percent of the patients had stage IV and PDL-1 positive in 71%. The median duration was 3.4 months (range 0.7-26). Seventy-seven percent of patients experienced AEir and the most frequent were: asthenia, lymphopenia and hypothyroidism. Regarding severity, 91% were mild or moderate and 9% were grade 3. The most serious adverse reactions were encephalitis, nephritis, grade 3 anemia, lichen planus and demyelinating motor polyneuropathy. Eleven of the patients discontinued pembrolizumab, 36% of whom discontinued permanently. Conclusions: Most of the AEs that appeared were mild, although the severe cases observed and the variable time of onset make it important to continuously monitor the toxicity of these drugs during treatment, even after discontinuation. (AU)


Assuntos
Humanos , Imunoterapia , Neoplasias , Morte Celular , Sistema Imunitário , Terapêutica
4.
Carbohydr Polym ; 147: 16-27, 2016 08 20.
Artigo em Inglês | MEDLINE | ID: mdl-27178904

RESUMO

The use of a modified poly(ε-caprolactone) (gPCL) to enhance polymer miscibility in films based on thermoplastic starch (S) and poly(ε-caprolactone) is reported. PCL was functionalized by grafting with maleic anyhdride (MA) and/or glycidyl methacrylate (GMA) by reactive blending in a batch mixer. gPCL based materials were analysed in terms of their grafting degree, structural and thermal properties. Blends based on starch and PCL (wt. ratio 80:20) with including gPCL (0, 2.5 and 5wt.%), as a compatibilizer, were obtained by extrusion and compression moulding, and their structural, thermal, mechanical and barrier properties were investigated. Blends containing gPCL evidenced better interfacial adhesion between starch and PCL domains, as deduced from both structural (XRD, FTIR, SEM) and bulk properties (DSC, TGA). Moreover, grafted PCL-based compatibilizers greatly improved functional properties of S-PCL blend films, as pointed out from mechanical performance and higher barrier properties, valuable to meet the food packaging requirements.


Assuntos
Embalagem de Alimentos , Poliésteres/química , Amido/química , Poliésteres/metabolismo , Amido/metabolismo
5.
J Sports Med Phys Fitness ; 55(11): 1371-5, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25303168

RESUMO

AIM: The aim of this paper was to highlight the special frequency of cases of rhabdomyolysis related to the practice of indoor cycling and to define the characteristics, course, and outcome of this disease. METHODS: Retrospective review of clinical histories of patients diagnosed with rhabdomyolysis after indoor cycling in our unit from January 2012 to April 2013. RESULTS: Eleven patients were analyzed. All patients, regardless of the degree of previous physical training, were diagnosed after a first session of indoor cycling. Mean age was 27.63 years (SD=5.74). Fifty-four percent were women. Creatine kinase (CK) levels gradually decreased in response to rest and intensive intravenous hydration. Only in two cases was renal failure observed, and in none were electrolyte disorders, disseminated intravascular coagulation (DIC) or compartmental syndrome detected. CONCLUSION: A first session of indoor cycling has become a common cause of rhabdomyolysis secondary to the physical exercise in recent years, which should alert those responsible for teaching this sport of the need for a gradual start under adequate hydration and environmental conditions, because although the condition has a benign course with adequate treatment and the complication rate is low, there are patients with increased susceptibility to very high CK blood levels requiring hospitalization for treatment and follow-up of possible complications.


Assuntos
Creatina Quinase/sangue , Terapia por Exercício/métodos , Exercício Físico/fisiologia , Rabdomiólise/reabilitação , Adolescente , Adulto , Feminino , Humanos , Masculino , Estudos Retrospectivos , Rabdomiólise/sangue , Adulto Jovem
6.
An Sist Sanit Navar ; 36(2): 347-51, 2013 Sep 06.
Artigo em Espanhol | MEDLINE | ID: mdl-24008541

RESUMO

Paragangliomas are neuroendocrine tumors that originate from cells migrating from the neural crest. They have a diverse localizations, and are common in the head, neck, mediastinum or retroperitoneum. Their growth in the filum terminale region is very infrequent. We report the case of a patient who suffered an acute cauda equina syndrome. We give a detailed description of the diagnostic process, radiological characteristics, treatment and the macro and microscopic properties of this tumor.


Assuntos
Cauda Equina , Paraganglioma/complicações , Neoplasias do Sistema Nervoso Periférico/complicações , Polirradiculopatia/etiologia , Feminino , Humanos , Pessoa de Meia-Idade
7.
An. sist. sanit. Navar ; 36(2): 347-351, mayo-ago. 2013. ilus
Artigo em Espanhol | IBECS | ID: ibc-116708

RESUMO

Los paragangliomas son tumores neuroendocrinos originados a partir de células que migran de la cresta neural. Su localización es diversa, siendo frecuentes encabeza, cuello, mediastino o retroperitoneo. Su crecimiento en la región del filum terminal es muy poco frecuente. Presentamos el caso de una paciente que debuta con un cuadro agudo de cauda equina. Describimos en detalle el proceso diagnóstico, las características radiológicas, el tratamiento y las propiedades macro y microscópicas de este tumor (AU)


Paragangliomas are neuroendocrine tumors that originate from cells migrating from the neural crest. They have a diverse localizations, and are common in the head, neck, mediastinum or retroperitoneum. Their growth in the filum terminale region is very infrequent. We report the case of a patient who suffered an acute cauda equina syndrome. We give a detailed description of the diagnostic process, radiological characteristics, treatment and the macro and microscopic properties of this tumor (AU)


Assuntos
Humanos , Feminino , Paraganglioma/complicações , Cauda Equina/patologia , Polirradiculopatia/etiologia , Fatores de Risco
8.
Talanta ; 107: 239-47, 2013 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-23598218

RESUMO

Herein, we present the fabrication and characterization of a flexible gas sensor based on carbon nanofibers. The sensing device is composed of interdigitated silver electrodes deposited by inkjet printing on Kapton substrates, subsequently coated with carbon nanofibers as sensing element. Gas sensing response to CO, NH3 and humidity has been characterized in detail. Thermal, mechanical and electromagnetic radiation effects have also been studied and discussed from the point of view of the cross-sensitivity. The obtained results open the door for a new generation of flexible sensors with multifunctional sensing features, which are producible with scalable techniques based on low cost nanomaterials.


Assuntos
Amônia/análise , Monóxido de Carbono/análise , Carbono/química , Eletroquímica/instrumentação , Gases/análise , Nanofibras/química , Umidade , Sensibilidade e Especificidade , Prata/química
9.
Anticancer Res ; 32(5): 1817-20, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22593467

RESUMO

BACKGROUND: Advanced age is associated with a significantly worse prognosis of endometrial carcinoma patients. The aim of this study was to test whether age is a poor-risk factor in endometrial carcinoma because tumors arising in older patients are biologically different from those diagnosed in patients of an earlier age. MATERIALS AND METHODS: Formalin-fixed, paraffin-embedded samples from 136 previously untreated patients with endometrial carcinoma were studied by means of immunohistochemistry. The expression of molecular markers associated with hormone responsiveness (estrogen and progesterone receptors), proliferation (Ki67, C-ERB-B2, p53), invasiveness (E-cadherin) and apoptosis (BCL2 and p53) was analyzed. The obtained expression levels, together with all available clinical and pathological features were tested for correlations with the patients age and survival. RESULTS: Advanced patient age showed a direct correlation with tumor stage (r=0.29, p=0.0008) and mutant p53 expression (r=0.25, p=0.004), and an inverse correlation with E-cadherin expression (r=-0.28, p=0.001). Patient age above the 25th percentile (57 years) of the age distribution was significantly associated with a worse prognosis (p=0.018). CONCLUSION: It appears that with advancing age, endometrial carcinoma exhibits a more aggressive tumor phenotype, characterized by mutant p53 expression and down-regulation of E-cadherin expression, and that this, in its turn, results in tumors being diagnosed at a more advanced stage in older patients.


Assuntos
Neoplasias do Endométrio/patologia , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Caderinas/análise , Neoplasias do Endométrio/química , Neoplasias do Endométrio/mortalidade , Feminino , Humanos , Pessoa de Meia-Idade , Proteína Supressora de Tumor p53/análise
10.
Clín. investig. ginecol. obstet. (Ed. impr.) ; 38(6): 249-251, nov.-dic. 2011. ilus
Artigo em Espanhol | IBECS | ID: ibc-115793

RESUMO

Presentamos un caso de trombosis puerperal de la vena ovárica y revisamos la literatura al respecto. Se trata de una paciente que presentó fiebre y dolor abdominal en el puerperio precoz; se inició tratamiento antibiótico empírico y la TAC mostró trombosis de la vena ovárica derecha. La trombosis de la vena ovárica es una causa excepcional de fiebre puerperal que plantea el diagnóstico diferencial con otros procesos más frecuentes (apendicitis, pielonefritis o abscesos tuboováricos); su patogenia es multifactorial y el tratamiento más adecuado es la combinación de antibióticos y anticoagulantes. La TAC es la prueba diagnóstica de elección (AU)


We report a case of postpartum ovarian vein thrombosis and review the literature on the topic. The patient developed fever and abdominal pain after delivery. Empiric antibiotic treatment was prescribed and computed tomography showed right ovarian vein thrombosis. Ovarian vein thrombosis is an exceptional cause of postpartum fever. Differential diagnosis must be made with more frequent complications (appendicitis, pyelonephritis, and tubo-ovarianabscesses). The pathogenesis is multifactorial and treatment is based on a combination of antibiotics and anticoagulation. The diagnostic procedure of choice is computed tomographyscan (AU)


Assuntos
Humanos , Feminino , Trombose Venosa/complicações , Sepse/complicações , Transtornos Puerperais/diagnóstico , Diagnóstico Diferencial , Antibacterianos/uso terapêutico
12.
Rehabilitación (Madr., Ed. impr.) ; 40(1): 47-50, ene.-feb. 2006. ilus, graf
Artigo em Es | IBECS | ID: ibc-043298

RESUMO

Introducción. La función normal de marcha ocurre gracias al proceso a nivel cerebral de un conjunto de datos sensitivos respecto de la posición y el movimiento, que conforman el campo aferente. Éste puede verse disminuido por afecciones de diverso origen que reducen o anulan la sensibilidad. Observaciones clínicas. Exponemos el caso de una paciente con hemiparesia braquiocrural derecha moderada con trastornos de sensibilidad. Fue tratada durante 10 meses con técnicas tradicionales logrando cierta mejora de la funcionalidad después de 4 meses de tratamiento, tras lo cual no se observaron nuevos progresos. Posteriormente aplicamos un tratamiento basado en un dispositivo electrónico desarrollado por nosotros. Buscamos compensar la pérdida sensitiva aplicando estímulos artificiales proporcionales a la presión de pisada. Observamos una rápida recuperación de las funciones de bipedestación y marcha. Discusión. Esta ortesis electrónica permitiría acortar el tratamiento y maximizar sus resultados, generando una participación más activa por parte del paciente


Introduction. Normal walking requires processing of a large set of sensitive data regarding position and movement on the brain level. It is known as afferent field. This may be decreased by conditions which lead to the reduction or absence of sensitivity. Clinical observations. We present the case of a female patient suffering from moderate right braquio-crural hemiparesis with diminished sensitivity. She was treated for ten months with traditional techniques, achieving some increased functionality during the first four months but no further progress afterwards. Then she was included in a rehabilitation program based on the utilization of an electronic device that we developed. We tried to compensate that pathological loss of sensitivity by means of an artificial stimulus which is proportional to the stepping force. Rapid growth was observed on relearning of bipedestation and gait. Discussion. The use of this electronic orthesis would be beneficial to shorten the duration of the treatment and to maximize its final results, promoting more active participation of the patient


Assuntos
Feminino , Pessoa de Meia-Idade , Humanos , Hemiplegia/reabilitação , Transtornos das Habilidades Motoras/reabilitação , Vias Aferentes/fisiopatologia , Marcha/fisiologia , Estimulação Elétrica/métodos
16.
An Med Interna ; 10(8): 386-9, 1993 Aug.
Artigo em Espanhol | MEDLINE | ID: mdl-8218783

RESUMO

This study assessed the effectivity of the association between a diuretic, chlorthalidone, and retard nifedipine in the treatment of patients above 50 years of age with Arterial Hypertension refractory to retard nifedipine. A prospective study of a 3-month controlled intervention was designed, in which the patients were treated with retard nifedipine for 2 months and, if they did not respond to the treatment, chlorthalidone was associated for 1 month. Out of 235 patients selected at the beginning of the study, 28 dropped out voluntarily, 24 were excluded because they did not adhere to the protocol and 30 dropped out due to side effects. After the first two months of therapy, hypertension was controlled in 60.2% of the 181 patients, whereas in the third month, only in 20% of the 44 patients considered could be controlled. Significant differences were observed between the two treatments (p < 0.001) with a 95% CI in the percentage differences of 54% versus 26.4%. These results suggest that the association of chlorthalidone and retard nifedipine does not improve the treatment of Arterial Hypertension refractory to retard nifedipine.


Assuntos
Clortalidona/uso terapêutico , Hipertensão/tratamento farmacológico , Nifedipino/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Clortalidona/administração & dosagem , Preparações de Ação Retardada , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nifedipino/administração & dosagem , Estudos Prospectivos
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