Intraoperative evaluation of the HeartMate II flow estimator

The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation
Mark S SlaughterSteven C Koenig

Abstract

Direct measurement of blood flow output has been incorporated into ventricular assist devices (VADs), but long-term reliability of the additional device components has raised concerns regarding sensor drift and failure. As an alternative approach, the HeartMate II axial VAD (Thoratec Corp, Pleasanton, CA) estimates device flow output from power consumption and rotational speed of the device motor. This study evaluated the accuracy of HeartMate II flow estimation at the time of implantation. In 20 patients, intraoperative blood flow measurement of the HeartMate II flow estimator was compared with flow values obtained with an ultrasonic flow probe placed around the device outflow graft. Estimated and measured VAD flow data were simultaneously recorded and digitally stored while the device motor speed varied from 7,800 to 11,000 rpm and while achieving device flow outputs of 2 to 7 liters/min. Estimated and measured flows were compared using linear regression analyses and root mean square error. HeartMate II flow estimation (FE) demonstrated a linear correlation with ultrasonic flow probe (FP) measurements: FE = 0.74 FP + 0.99 (R(2) = 0.56, p = 0.0001). A root mean square error of 0.8 liters/min was observed between flow estimatio...Continue Reading

References

Feb 1, 1985·Journal of Molecular and Cellular Cardiology·R L KentG Cooper
Feb 1, 1996·The Annals of Thoracic Surgery·M KinoshitaT Nakatani
May 18, 2004·Computers in Biology and Medicine·M J Mark J SchroederS C Steven C Koenig
Feb 16, 2005·Cardiovascular Pathology : the Official Journal of the Society for Cardiovascular Pathology·Alan G Rose, Soon J Park
May 3, 2005·Journal of the American College of Cardiology·Ohad ZivHasan Garan
Sep 15, 2005·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Kwan-Woong GwakJames F Antaki
Nov 22, 2005·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Michael VollkronGeorg Wieselthaler
Feb 1, 2006·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Heinrich SchimaGeorg Wieselthaler
May 23, 2007·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·David J FarrarVictor L Poirier
Aug 19, 2007·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Michael VollkronHeinrich Schima
Apr 30, 2008·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Jonas BuschMatthias Loebe

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Citations

May 26, 2012·Artificial Organs·Robert Francis SalamonsenNigel Hamilton Lovell
Aug 14, 2012·Artificial Organs·Guruprasad A GiridharanMark S Slaughter
Feb 25, 2014·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Daniel J CantillonBruce L Wilkoff
Dec 25, 2012·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Nader MoazamiRandall C Starling
Aug 23, 2012·Best Practice & Research. Clinical Anaesthesiology·Sara Jane Allen, David Sidebotham
Nov 27, 2010·Journal of Cardiothoracic and Vascular Anesthesia·David J FickeMarc E Stone
Jan 10, 2016·JACC. Heart Failure·Nir UrielRoberto M Lang
Nov 26, 2010·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Robert M WeissFrances L Johnson
Aug 7, 2010·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Robert S GeorgeEmma J Birks
Oct 20, 2015·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Carlos ReyesDaniel Tamez
Dec 15, 2015·Biomedical Engineering Online·Grzegorz KoniecznyMaciej Gawlikowski
Nov 28, 2013·Artificial Organs·Mohsen A BakouriNigel H Lovell
Nov 26, 2013·Journal of Cardiac Surgery·Carlo R BartoliJohn A Kern
Mar 30, 2016·Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs·Terumi YurimotoYusuke Abe
Jan 31, 2015·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Guruprasad A GiridharanMark S Slaughter
Sep 24, 2014·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Yu WangGuruprasad A Giridharan
Oct 25, 2016·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Nir UrielIvan Netuka
Jul 29, 2018·Annals of Biomedical Engineering·Anastasios PetrouMarianne Schmid Daners
Sep 25, 2017·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Yu WangGuruprasad A Giridharan
Jul 9, 2010·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Carlo R BartoliSteven C Koenig
Mar 1, 2014·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Guruprasad A GiridharanMark S Slaughter
Nov 1, 2018·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Eilon RamAlexander Kogan
Jul 1, 2017·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Palak ShahShashank S Desai
Mar 12, 2017·Cardiovascular Engineering and Technology·M Keith SharpGeorge M Pantalos
Jan 26, 2018·Journal of Cardiovascular Development and Disease·Massimo Capoccia
May 2, 2017·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Vakhtang TchantchaleishviliH Todd Massey
Mar 8, 2012·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Lars H LundMaria J Eriksson
Mar 27, 2021·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Andrew F StephensShaun D Gregory

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