Case Report: Disparate flow in HeartMate II patient with extensive left ventricle repair

Phat L. Tran; Toshinobu Kazui; Viktor Perovic; Philmon Mikail; Scott Lick; Richard Smith; Edward W. Betterton; Raj Venkat; Jessika Iwanski; Raymond K. Wong; Marvin J. Slepian; Zain Khalpey

doi:10.1177/0267659115614639

Case Report: Disparate flow in HeartMate II patient with extensive left ventricle repair

Phat L. Tran, Toshinobu Kazui, Viktor Perovic, Philmon Mikail, Scott Lick, Richard Smith, Edward W. Betterton, Raj Venkat, Jessika Iwanski, Raymond K. Wong, Marvin J. Slepian, Zain Khalpey

Research output: Contribution to journal › Article › peer-review

Abstract

This case study reports the operative management of a 63-year-old male patient following implantation of the HeartMate II (HMII) left ventricular assist device (LVAD), with a non-compliant left ventricle (LV) and a reduced right ventricular (RV) end-diastolic volume. Intraoperatively, the patient had a thin, fragile LV wall with laminated clot; a ventricular septal defect was encountered during removal of the clot. Along with an aortic valve repair, the LV and the septum were reconstructed with multiple bovine pericardium patches, thus, moderately reducing the RV and LV stroke volume. A difference in cardiac output via a Swan-Ganz catheter (approximately 1.5 l/min) was observed as opposed to the HMII's estimated flow. The result was later replicated and verified in vitro via the Donovan Mock Circulation System (DMCS), where about 2 l/min lower flow on the HMII system was observed. In conclusion, the HMII flow rate displayed can be inaccurate and should only be used for trending.

Original language	English (US)
Pages (from-to)	349-352
Number of pages	4
Journal	Perfusion (United Kingdom)
Volume	31
Issue number	4
DOIs	https://doi.org/10.1177/0267659115614639
State	Published - May 2016
Externally published	Yes

Keywords

Donovan mock circulation system (DMCS)
HeartMate II (HMII)
left ventricular assist device (LVAD)
mechanical circulatory support (MCS)
ventricle repair/reconstruction

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging
Safety Research
Cardiology and Cardiovascular Medicine
Advanced and Specialized Nursing

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10.1177/0267659115614639

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@article{26ac30cf463e4f23853def389c9cd878,

title = "Case Report: Disparate flow in HeartMate II patient with extensive left ventricle repair",

abstract = "This case study reports the operative management of a 63-year-old male patient following implantation of the HeartMate II (HMII) left ventricular assist device (LVAD), with a non-compliant left ventricle (LV) and a reduced right ventricular (RV) end-diastolic volume. Intraoperatively, the patient had a thin, fragile LV wall with laminated clot; a ventricular septal defect was encountered during removal of the clot. Along with an aortic valve repair, the LV and the septum were reconstructed with multiple bovine pericardium patches, thus, moderately reducing the RV and LV stroke volume. A difference in cardiac output via a Swan-Ganz catheter (approximately 1.5 l/min) was observed as opposed to the HMII's estimated flow. The result was later replicated and verified in vitro via the Donovan Mock Circulation System (DMCS), where about 2 l/min lower flow on the HMII system was observed. In conclusion, the HMII flow rate displayed can be inaccurate and should only be used for trending.",

keywords = "Donovan mock circulation system (DMCS), HeartMate II (HMII), left ventricular assist device (LVAD), mechanical circulatory support (MCS), ventricle repair/reconstruction",

author = "Tran, {Phat L.} and Toshinobu Kazui and Viktor Perovic and Philmon Mikail and Scott Lick and Richard Smith and Betterton, {Edward W.} and Raj Venkat and Jessika Iwanski and Wong, {Raymond K.} and Slepian, {Marvin J.} and Zain Khalpey",

note = "Publisher Copyright: {\textcopyright} 2015 SAGE Publications.",

year = "2016",

month = may,

doi = "10.1177/0267659115614639",

language = "English (US)",

volume = "31",

pages = "349--352",

journal = "Perfusion (United Kingdom)",

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T1 - Case Report

T2 - Disparate flow in HeartMate II patient with extensive left ventricle repair

AU - Tran, Phat L.

AU - Kazui, Toshinobu

AU - Perovic, Viktor

AU - Mikail, Philmon

AU - Lick, Scott

AU - Smith, Richard

AU - Betterton, Edward W.

AU - Venkat, Raj

AU - Iwanski, Jessika

AU - Wong, Raymond K.

AU - Slepian, Marvin J.

AU - Khalpey, Zain

PY - 2016/5

Y1 - 2016/5

N2 - This case study reports the operative management of a 63-year-old male patient following implantation of the HeartMate II (HMII) left ventricular assist device (LVAD), with a non-compliant left ventricle (LV) and a reduced right ventricular (RV) end-diastolic volume. Intraoperatively, the patient had a thin, fragile LV wall with laminated clot; a ventricular septal defect was encountered during removal of the clot. Along with an aortic valve repair, the LV and the septum were reconstructed with multiple bovine pericardium patches, thus, moderately reducing the RV and LV stroke volume. A difference in cardiac output via a Swan-Ganz catheter (approximately 1.5 l/min) was observed as opposed to the HMII's estimated flow. The result was later replicated and verified in vitro via the Donovan Mock Circulation System (DMCS), where about 2 l/min lower flow on the HMII system was observed. In conclusion, the HMII flow rate displayed can be inaccurate and should only be used for trending.

AB - This case study reports the operative management of a 63-year-old male patient following implantation of the HeartMate II (HMII) left ventricular assist device (LVAD), with a non-compliant left ventricle (LV) and a reduced right ventricular (RV) end-diastolic volume. Intraoperatively, the patient had a thin, fragile LV wall with laminated clot; a ventricular septal defect was encountered during removal of the clot. Along with an aortic valve repair, the LV and the septum were reconstructed with multiple bovine pericardium patches, thus, moderately reducing the RV and LV stroke volume. A difference in cardiac output via a Swan-Ganz catheter (approximately 1.5 l/min) was observed as opposed to the HMII's estimated flow. The result was later replicated and verified in vitro via the Donovan Mock Circulation System (DMCS), where about 2 l/min lower flow on the HMII system was observed. In conclusion, the HMII flow rate displayed can be inaccurate and should only be used for trending.

KW - Donovan mock circulation system (DMCS)

KW - HeartMate II (HMII)

KW - left ventricular assist device (LVAD)

KW - mechanical circulatory support (MCS)

KW - ventricle repair/reconstruction

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Case Report: Disparate flow in HeartMate II patient with extensive left ventricle repair

Abstract

Keywords

ASJC Scopus subject areas

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