variability of tidal volume and respiratory rate in normally breathing man has long been demonstrated [1]. however because of lack of knowledge and technology primary ventilators could only deliver a fixed tidal volume in a fixed rate the so called volume controlled ventilation (vcv). vcv was volume preset time triggered and cycled and there was no synchronization with patient’s breaths. at tha...

The aimof this research was to evaluate the in vitro anticoccidial activity of microencapsulated essential oils from Lepechinia heteromorpha(Briq.) Epling and Salvia sagittataRuiz & Pav., against non-attenuated sporulated oocysts Eimeriasppof broiler chickens. treatments were concentrations 2.5; 5; 10; 20;30 50 mg/ml, 2.5% potassium dichromate negative control group 4% formaldehyde positive...

Objetivou-se analisar as medidas de prevenção à pneumonia associada ventilação mecânica evidenciadas na literatura científica. Trata-se um estudo revisão integrativa. Para a elaboração da questão pesquisa integrativa, utilizou-se estratégia PICO. A presente foi feita mediante busca online nas bases dados Biblioteca Virtual em Saúde (BVS) no período 2015 06/2020. Após leitura criteriosa dos arti...

Currently available noninvasive methods for measuring inspiratory resistance (RI) are difficult to implement or interpret during assisted mechanical ventilation on account of the confounding effect of respiratory efforts (Pmus). We propose a simple method consisting of brief reductions in airway pressure (Paw) in the early part of the inflation phase (pulse). Paw, flow (V), and volume (V) are m...

AIMS The interaction between coronary β(2)-adrenoreceptors and segmental plaque burden is complex and poorly understood in humans. We aimed to validate intracoronary (IC) salbutamol as a novel endothelium-dependent vasodilator utilizing intravascular ultrasound (IVUS), and thus assess relationships between coronary β(2)-adrenoreceptors, regional plaque burden and segmental endothelial function....

BACKGROUND Statins can regress coronary atheroma and lower clinical events. Although pre-clinical studies suggest procalcific effects of statins in vitro, it remains unclear if statins can modulate coronary atheroma calcification in vivo. OBJECTIVES This study compared changes in coronary atheroma volume and calcium indices (CaI) in patients receiving high-intensity statin therapy (HIST), low...