Cardiac Output Calculation and Three-Dimensional Echocardiography

Mario Montealegre-Gallegos; Feroze Mahmood; Khurram Owais; Phillip Hess; Jayant S. Jainandunsing; Robina Matyal

doi:10.1053/j.jvca.2013.11.005

Cardiac Output Calculation and Three-Dimensional Echocardiography

Mario Montealegre-Gallegos
, Feroze Mahmood^*
, Khurram Owais
, Phillip Hess
, Jayant S. Jainandunsing
, Robina Matyal

^*Corresponding author for this work

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

25 Citations (Scopus)

Abstract

Objective: To compare the determination of stroke volume (SV) and cardiac output (CO) using 2-dimensional (2D) versus 3-dimensional (3D) transesophageal echocardiography (TEE).

Design: Prospective observational study.

Setting: Tertiary care university hospital.

Participants: 35 patients without structural valve abnormalities undergoing isolated coronary artery bypass grafting.

Interventions: Left ventricular outflow tract (LVOT) diameter determined with 2D TEE was used to estimate LVOT cross-sectional area (CSA(LVOT)). LVOT area was measured directly with 3D TEE by planimetry on an en face view. SV and CO were calculated for both methods using the continuity equation.

Measurements and Main Results: The area of the LVOT differed significantly between methods, being significantly larger in the 3D method (3.57 +/- 0.70 cm(2) v3.98 +/- 0.93 cm(2)). This resulted in a 10% lower CO with the 2D method of LVOT area estimation.

Conclusions: LVOT area is underestimated with the single-axis 2D method when compared with 3D planimetered area. This results in a CO that is approximately 10% lower with the 2D method. (C) 2014 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	547-550
Number of pages	4
Journal	Journal of cardiothoracic and vascular anesthesia
Volume	28
Issue number	3
DOIs	https://doi.org/10.1053/j.jvca.2013.11.005
Publication status	Published - Jun-2014

Keywords

cardiac output
left ventricular outflow tract
stroke volume
transesophageal echocardiography
2D vs 3D
AORTIC-VALVE AREA
OUTFLOW TRACT ECCENTRICITY
TRANSESOPHAGEAL ECHOCARDIOGRAPHY
CONTINUITY EQUATION
STENOSIS
IMPLANTATION
IMPACT
RECOMMENDATIONS
CT

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title = "Cardiac Output Calculation and Three-Dimensional Echocardiography",

abstract = "Objective: To compare the determination of stroke volume (SV) and cardiac output (CO) using 2-dimensional (2D) versus 3-dimensional (3D) transesophageal echocardiography (TEE).Design: Prospective observational study.Setting: Tertiary care university hospital.Participants: 35 patients without structural valve abnormalities undergoing isolated coronary artery bypass grafting.Interventions: Left ventricular outflow tract (LVOT) diameter determined with 2D TEE was used to estimate LVOT cross-sectional area (CSA(LVOT)). LVOT area was measured directly with 3D TEE by planimetry on an en face view. SV and CO were calculated for both methods using the continuity equation.Measurements and Main Results: The area of the LVOT differed significantly between methods, being significantly larger in the 3D method (3.57 +/- 0.70 cm(2) v3.98 +/- 0.93 cm(2)). This resulted in a 10\% lower CO with the 2D method of LVOT area estimation.Conclusions: LVOT area is underestimated with the single-axis 2D method when compared with 3D planimetered area. This results in a CO that is approximately 10\% lower with the 2D method. (C) 2014 Elsevier Inc. All rights reserved.",

keywords = "cardiac output, left ventricular outflow tract, stroke volume, transesophageal echocardiography, 2D vs 3D, AORTIC-VALVE AREA, OUTFLOW TRACT ECCENTRICITY, TRANSESOPHAGEAL ECHOCARDIOGRAPHY, CONTINUITY EQUATION, STENOSIS, IMPLANTATION, IMPACT, RECOMMENDATIONS, CT",

author = "Mario Montealegre-Gallegos and Feroze Mahmood and Khurram Owais and Phillip Hess and Jainandunsing, \{Jayant S.\} and Robina Matyal",

year = "2014",

month = jun,

doi = "10.1053/j.jvca.2013.11.005",

language = "English",

volume = "28",

pages = "547--550",

journal = "Journal of cardiothoracic and vascular anesthesia",

issn = "1053-0770",

publisher = "W B SAUNDERS CO-ELSEVIER INC",

number = "3",

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T1 - Cardiac Output Calculation and Three-Dimensional Echocardiography

AU - Montealegre-Gallegos, Mario

AU - Mahmood, Feroze

AU - Owais, Khurram

AU - Hess, Phillip

AU - Jainandunsing, Jayant S.

AU - Matyal, Robina

PY - 2014/6

Y1 - 2014/6

N2 - Objective: To compare the determination of stroke volume (SV) and cardiac output (CO) using 2-dimensional (2D) versus 3-dimensional (3D) transesophageal echocardiography (TEE).Design: Prospective observational study.Setting: Tertiary care university hospital.Participants: 35 patients without structural valve abnormalities undergoing isolated coronary artery bypass grafting.Interventions: Left ventricular outflow tract (LVOT) diameter determined with 2D TEE was used to estimate LVOT cross-sectional area (CSA(LVOT)). LVOT area was measured directly with 3D TEE by planimetry on an en face view. SV and CO were calculated for both methods using the continuity equation.Measurements and Main Results: The area of the LVOT differed significantly between methods, being significantly larger in the 3D method (3.57 +/- 0.70 cm(2) v3.98 +/- 0.93 cm(2)). This resulted in a 10% lower CO with the 2D method of LVOT area estimation.Conclusions: LVOT area is underestimated with the single-axis 2D method when compared with 3D planimetered area. This results in a CO that is approximately 10% lower with the 2D method. (C) 2014 Elsevier Inc. All rights reserved.

AB - Objective: To compare the determination of stroke volume (SV) and cardiac output (CO) using 2-dimensional (2D) versus 3-dimensional (3D) transesophageal echocardiography (TEE).Design: Prospective observational study.Setting: Tertiary care university hospital.Participants: 35 patients without structural valve abnormalities undergoing isolated coronary artery bypass grafting.Interventions: Left ventricular outflow tract (LVOT) diameter determined with 2D TEE was used to estimate LVOT cross-sectional area (CSA(LVOT)). LVOT area was measured directly with 3D TEE by planimetry on an en face view. SV and CO were calculated for both methods using the continuity equation.Measurements and Main Results: The area of the LVOT differed significantly between methods, being significantly larger in the 3D method (3.57 +/- 0.70 cm(2) v3.98 +/- 0.93 cm(2)). This resulted in a 10% lower CO with the 2D method of LVOT area estimation.Conclusions: LVOT area is underestimated with the single-axis 2D method when compared with 3D planimetered area. This results in a CO that is approximately 10% lower with the 2D method. (C) 2014 Elsevier Inc. All rights reserved.

KW - cardiac output

KW - left ventricular outflow tract

KW - stroke volume

KW - transesophageal echocardiography

KW - 2D vs 3D

KW - AORTIC-VALVE AREA

KW - OUTFLOW TRACT ECCENTRICITY

KW - TRANSESOPHAGEAL ECHOCARDIOGRAPHY

KW - CONTINUITY EQUATION

KW - STENOSIS

KW - IMPLANTATION

KW - IMPACT

KW - RECOMMENDATIONS

KW - CT

U2 - 10.1053/j.jvca.2013.11.005

DO - 10.1053/j.jvca.2013.11.005

M3 - Article

SN - 1053-0770

VL - 28

SP - 547

EP - 550

JO - Journal of cardiothoracic and vascular anesthesia

JF - Journal of cardiothoracic and vascular anesthesia

IS - 3

ER -

Cardiac Output Calculation and Three-Dimensional Echocardiography

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