Accuracy of Echocardiographic Cardiac Index Assessment in Subjects with Preserved Left Ventricular Ejection Fraction.
Introduction We aimed to determine the accuracy of the echocardiographic assessment of cardiac index ( CI) in subjects with preserved left ventricular ejection fraction ( LVEF). Methods Thirty-three subjects with LVEF >50%, normal sinus rhythm, and a broad spectrum of hemodynamic profiles underwent...
| Publicado en: | Echocardiography Vol. 32; no. 11; pp. 1628 - 1639 |
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| Autores principales: | , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Nov2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=110569011&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 110569011 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Nov2015 vid: 32 iid: 11 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 110569011 110569011 110569011 10.1111/echo.12928 NLM25728504 110569011 ppf: 1628 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Accuracy of Echocardiographic Cardiac Index Assessment in Subjects with Preserved Left Ventricular Ejection Fraction. aug: au: Maeder, Micha T. Karapanagiotidis, Sofie Dewar, Elizabeth M. Kaye, David M. affil: Heart Failure Research Group, Baker IDI Heart and Diabetes Institute, Melbourne Victoria, Australia sug: subj: Hemodynamics Ventricular Ejection Fraction Ventricular Function, Left Evaluation Echocardiography Utilization Cardiac Output Determination Echocardiography Methods Thermodilution Utilization Prospective Studies Heart Catheterization Inpatients Invasive Procedures Noninvasive Procedures Descriptive Statistics Data Analysis Software P-Value Chi Square Test One-Way Analysis of Variance Kruskal-Wallis Test T-Tests Post Hoc Analysis Pearson's Correlation Coefficient Pulmonary Arterial Hypertension Heart Failure Cardiac Patients Classification Stroke Volume Human Female Male Adult Middle Age Aged Funding Source Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Female Male ab: Introduction We aimed to determine the accuracy of the echocardiographic assessment of cardiac index ( CI) in subjects with preserved left ventricular ejection fraction ( LVEF). Methods Thirty-three subjects with LVEF >50%, normal sinus rhythm, and a broad spectrum of hemodynamic profiles underwent echocardiography immediately followed by right heart catheterization. As gold standards, CI was assessed using thermodilution [ CI ( TD)] and the Fick method [ CI (F)]. Echocardiographic CI was assessed by four methods: from the left ventricular outflow tract ( LVOT) velocity time integral and the LVOT diameter as measured [ CI ( LVOTm)] as well as estimated from body surface area [ CI ( LVOTe)], and from stroke volume indices assessed using the biplane [ CI ( BP)] and monoplane [ CI ( MP)] methods. Results The mean CI ( TD), CI (F), CI ( LVOTm), CI ( LVOTe), CI ( BP), and CI ( MP) were 3.0 ± 0.9, 3.1 ± 0.7, 2.8 ± 0.6, 3.3 ± 0.6, 2.0 ± 0.6, and 2.2 ± 0.7 L/min/m2. There were modest correlations between CI ( TD) and CI (F) and all four noninvasive measures of CI with r2 values ranging from 0.09 to 0.30. CI ( LVOTm) underestimated CI ( TD) and CI (F) by 0.3 and 0.3 L/min/m2, CI ( LVOTe) overestimated CI ( TD) and CI (F) by 0.3 and 0.2 L/min/m2, and CI ( BP) and CI ( MP) underestimated CI ( TD) and CI (F) by 1.1 and 1.1 L/min/m2 and 0.9 and 0.9 L/min/m2, respectively, with large limits of agreement for all comparisons. Conclusions In subjects with nondilated left ventricles with preserved LVEF, flow- or volume-based measures of CI by 2D echocardiography may not accurately reflect CI ( TD) and CI (F). Further larger studies are required to verify our findings and to evaluate the accuracy of contrast and 3D echocardiography in this setting. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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