Encontrados 242 documentos, a visualizar página 1 de 25

Unrecognized vascular variation leading to failure of arteriovenous fistula cre...

AIMS OF THE STUDY: To describe the importance of preoperative venous and arterial mapping before choosing the best arteriovenous fistula (AVF) according to the National Kidney Foundation Dialysis Outcomes Quality Initiative (NKF-DOQI) guidelines. METHODS: We describe a case of a successful arteriovenous graft (AVG) creation after the failure of two AVF and a AVG without vascular mapping conducted before the su...

Value of color doppler ultrasound: parameters for proximal vascular access patency

Background: Color Doppler Ultrasound (CDU) is essential for vascular mapping in vascular access planning/creation. The aims of this study was to evaluate which anatomical and physiological variables of the artery and the vein, measured by CDU, were associated with higher patency at one year follow-up in brachiocephalic (BC) and brachiobasilic (BB) primary AV fistula (AVF). Materials and Methods: Retrospective o...

Ascite biliar: diagnóstico etiológico: a propósito de dois casos clínicos

Chitosan–lignosulfonates sono-chemically prepared nanoparticles : characterisat...

Due to their recognised properties of biocompatibility, biodegradability and sustainability, chitosan nanocarriers have been successfully used as new delivery systems. In this work, nanoparticles combining chitosan and lignosulfonates were developed for the first time for cosmetic and biomedical applications. The ability of lignosulfonates to act as a counter polyion for stabilisation of chitosan particles, gen...

Sonochemical and hydrodynamic cavitation reactors for laccase/hydrogen peroxide...

Article in press ; The main goal of this work is to develop a novel and environmental-friendly technology for cotton bleaching with reduced processing costs. This work exploits a combined laccase–hydrogen peroxide process assisted by ultrasound. For this purpose, specific reactors were studied, namely ultrasonic power generator type K8 (850 kHz) and ultrasonic bath equipment Ultrasonic cleaner USC600TH (45 kHz...

Contributions to pegmatite exploration within granitic plutons in Central and N...

Exploration programs for granitic pegmatites face the lack of detectable contrasts, either geophysical or geochemical, between pegmatites and their granitic host-rocks. The known productive sectors bearing pegmatites located inside granitic plutons, with economic interest for quartz and feldspar provide adequate field testing for alternative research, dealing with the peculiarities of lithological diversity and...

Melhoramento das plantas e da qualidade dos produtos de Arbutus unedo L. para o...

Comunicação oral da qual só está disponível o resumo. ; Melhoramento das plantas e da qualidade dos produtos de Arbutus unedo L. para o sector agro-florestal.

Insights into the molecular mechanism of protein native-like aggregation upon m...

"Protein glycation induces structural and stability changes that impair protein function, and is associated with several human neurodegenerative diseases, such as Alzheimer’s disease, Parkinson’s disease and Familial Amyloidotic Polyneuropathy. Recently we have shown that methylglyoxal induces and stabilizes the formation of small native-like aggregates in the amyloidogenic protein insulin and the same was prev...

Anafilaxia induzida por fármacos: Registo Nacional 2007-2010

Introdução: A anafilaxia a fármacos constitui uma situação potencialmente fatal e imprevisível, desconhecendo-se a real prevalência em diferentes grupos populacionais e os factores de risco relacionados.Objectivo: Contribuir para o melhor conhecimento epidemiológico da anafilaxia induzida por fármacos no nosso país. Métodos: Durante um período de 4 anos (Janeiro de 2007 a Dezembro de 2010) foi implementado um s...

Pé diabético