NDLI: Evaluation of a minimally invasive cardiac function estimator for patients with rotary VAD support

Content Provider	IEEE Xplore Digital Library
Author	Gopalakrishnan, S. Yih-Choung Porter, J.
Copyright Year	2007
Description	Author affiliation: Lafayette Coll., Easton (Gopalakrishnan, S.; Yih-Choung; Porter, J.)
Abstract	Ventricular pressure-volume relationship or Emax is a reliable index to assess the healthy status of the ventricle. Determining this index usually involves invasive pressure and flow measurements or expensive echo cardiographs. If an indirect index of Emax can be identified from the measurements of a ventricular assist device (VAD) without any indwelling sensor, this would facilitate an effective way to monitor the healthy condition of the patient's heart while the patients are under VAD support. This index can also be used to determine the control strategy of VAD operation and gradually wean the patient from the mechanical circulatory support. In this paper, an amplitude detector was used to determine the amplitude of pump flow through a rotary VAD using data from a computer simulation and from in-vivo experiments. This amplitude depicts a strong correlation with Emax, and thus, can be used as an indirect index to monitor a VAD patient's cardiac function.
Starting Page	161
Ending Page	162
File Size	1190443
Page Count	2
File Format	PDF
ISBN	9781424410323
DOI	10.1109/NEBC.2007.4413328
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Minimally invasive surgery Patient monitoring Fluid flow measurement Pressure measurement Cardiography Mechanical sensors Condition monitoring Heart Detectors Computer simulation
Content Type	Text
Resource Type	Article

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