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Computer simulation of the blood flow in a planar configuration for a pulsatile ventricular assist device
(Springer, 2015-01)
Patients that suffer congestive cardiac insuffi-ciency need to be assisted with assist devices (VAD) as a tem-poral solution when the cardiac transplantation is not possible. For that reason it is of great interest to know ...
Anomalous flow behaviour of bauxite tailings
(1994-10-01)
This paper deals with the anomalous flow behaviour observed in two bauxite tailings pumping systems, with 450 mm and 680 mm outer diameter. In order to enlarge the pipeline lengths in the field, tests were carried out in ...
Change in aneurysmal flow pulsatility after flow diverter treatment
(Elsevier, 2015-01)
Motivation: Treatment of intracranial aneurysms with flow diverters (FDs) has recently become an attractive alternative. Although considerable effort has been devoted to understand their effects on the time-averaged or ...
Carotid and uterine vascular resistance in short-term hormone replacement therapy postmenopausal users
(Elsevier Sci Ireland LtdClareIrlanda, 2004)
Computer simulation of platelet activation in a pulsatile ventricular assist device, through finite elements and a simplified geometry
(Plapiqui, 2017-03)
Ventricular assist devices are a technological solution for patients who suffer from cardiac insufficiency and await a transplant. In this work, a new design of an implantable pulsatile blood pump is analyzed in terms of ...
Aneurysm pulsatility after endovascular exclusion: an experimental study using human aortic aneurysms
(Faculdade de Medicina / USP, 2008)
OBJECTIVE: To measure the pulsatility of human aneurysms before and after complete exclusion with an endograft. METHOD: Five aortic aneurysms obtained during necropsy were submitted to pulsatile perfusion before and after ...
The impact of hypothermic pulsatile machine perfusion versus static cold storage: A donor-matched paired analysis in a scenario of high incidence of delayed kidney graft function
(2020-01-01)
Background: Material/Methods: Results: Conclusions: The present study analyzed the impact of hypothermic pulsatile machine perfusion (MP) following a long period of static cold (SC) storage in the peculiar Brazilian scenario ...
Mock circulatory system for the evaluation of left ventricular assist devices, endoluminal prostheses, and vascular diseases
(WILEY-BLACKWELL, 2008)
A new digital computer mock circulatory system has been developed in order to replicate the physiologic and pathophysiologic characteristics of the human cardiovascular system. The computer performs the acquisition of ...
A preliminary simulation for the development of an implantable pulsatile blood pump
(Techno-press, 2014-06)
A preliminary study of a new pulsatile pump, that will work to a frequency greater than 1 Hz, is presented. The fluid-structure interaction between a Newtonian blood flow and a piston drive that moves with periodic speed ...
PULSATILITY INDEX CHANGE OF BRACHIAL ARTERY SHOWS BETTER REPRODUCIBILITY THAN FLOW-MEDIATED VASODILATION
(ELSEVIER SCIENCE INC, 2010)
We aim to evaluate intra- and interobserver reproducibility of brachial artery flow-mediated dilation (FMD) and of pulsatility index change (PI-C) 1 min after a 5-min forearm compression in pregnant women. Flow-mediated ...