Reliability of the Thoratec Heartmate II Flow Measurements and Alarms in the Presence of Reduced or Non-Existent Flow

Persistent Link:
http://hdl.handle.net/10150/293644
Title:
Reliability of the Thoratec Heartmate II Flow Measurements and Alarms in the Presence of Reduced or Non-Existent Flow
Author:
Hall, Seana G.
Issue Date:
2013
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The most recognized risk associated with the HeartMate II is thrombosis. In the presence of developing clot, the HeartMate II Display Monitor and System Controller senses a decrease in pump flow and is accompanied by audible and visual alarms when flow rates drop below a certain threshold; however, when flow is completely inhibited, the Display Monitor and System Controller both fail to indicate that flow has reduced to zero and does not produce any corresponding alarms. To test the efficacy of the HeartMate II alarms, the Donavan Mock was used to simulate the hemodynamics of a typical heart failure patient. The hemodynamics were then improved by the addition of the HeartMate II LVAS. Partially occluding the inflow and outflow of the HeartMate II did display changes in flow and presented with alarms when appropriate; however, complete occlusions of the device failed to produce any alarms or accurate changes in flow.
Type:
text; Electronic Thesis
Keywords:
heart failure; HeartMate II; LVAD; Mechanical Circulatory Support; Medical Pharmacology; alarms
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Medical Pharmacology
Degree Grantor:
University of Arizona
Advisor:
Larson, Douglas F.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleReliability of the Thoratec Heartmate II Flow Measurements and Alarms in the Presence of Reduced or Non-Existent Flowen_US
dc.creatorHall, Seana G.en_US
dc.contributor.authorHall, Seana G.en_US
dc.date.issued2013-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe most recognized risk associated with the HeartMate II is thrombosis. In the presence of developing clot, the HeartMate II Display Monitor and System Controller senses a decrease in pump flow and is accompanied by audible and visual alarms when flow rates drop below a certain threshold; however, when flow is completely inhibited, the Display Monitor and System Controller both fail to indicate that flow has reduced to zero and does not produce any corresponding alarms. To test the efficacy of the HeartMate II alarms, the Donavan Mock was used to simulate the hemodynamics of a typical heart failure patient. The hemodynamics were then improved by the addition of the HeartMate II LVAS. Partially occluding the inflow and outflow of the HeartMate II did display changes in flow and presented with alarms when appropriate; however, complete occlusions of the device failed to produce any alarms or accurate changes in flow.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectheart failureen_US
dc.subjectHeartMate IIen_US
dc.subjectLVADen_US
dc.subjectMechanical Circulatory Supporten_US
dc.subjectMedical Pharmacologyen_US
dc.subjectalarmsen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineMedical Pharmacologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorLarson, Douglas F.en_US
dc.contributor.committeememberDussor, Gregen_US
dc.contributor.committeememberSmith, Richen_US
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