Pulsatile flow in ventricular catheters for hydrocephalus
نویسندگان
چکیده
منابع مشابه
Influence of the hole geometry on the flow distribution in ventricular catheters for hydrocephalus
BACKGROUND Hydrocephalus is a medical condition consisting of an abnormal accumulation of cerebrospinal fluid within the brain. A catheter is inserted in one of the brain ventricles and then connected to an external valve to drain the excess of cerebrospinal fluid. The main drawback of this technique is that, over time, the ventricular catheter ends up getting blocked by the cells and macromole...
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In this paper, we propose a dynamical model for pulsatile flow estimation of an iRBP. Noninvasive measurements of the motor power (V I) and pump impeller rotational speed (ω) were acquired from the pump controller and used together with blood hematocrit (HCT ) values as inputs to the model. A circulatory mock loop was operated with different aqueous glycerol solutions, mimicking different value...
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BACKGROUND Continuous-flow left ventricular assist devices (LVAD) are increasingly used for patients with end-stage heart failure (HF). We analyzed the effects of ventricular decompression by continuous-flow versus pulsatile-flow LVADs on myocardial structure and function in this population. METHODS AND RESULTS Sixty-one patients who underwent LVAD implantation as bridge-to-transplant were an...
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In addition to many overly restrictive simplifications of this type, the text offers some extraordinary and equally arresting therapeutic suggestions. In 1964, it is intriguing to discover that relief in pericarditis "is often obtained from the application of four or five leeches over the praecordium," that extract of ox gall may help the symptoms of acute hepatitis, and that "Kaolin poultices ...
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Background and Aim: Thrombophlebitis is considered as a major cause of peripheral intravenous catheters (PICs) failure. The flushing technique in the laboratory has been effective in clearing the catheter duct, but its effectiveness in the clinical setting is unknown, therefore, the aim of this study was to determine the effect of pulsatile flushing on phlebitis, type, and duration of PICs pate...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2017
ISSN: 1364-503X,1471-2962
DOI: 10.1098/rsta.2016.0294