Document Detail


Hand-carried echocardiography for assessment of left ventricular filling and ejection fraction in the surgical intensive care unit.
MedLine Citation:
PMID:  19327304     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To better define the reliability of left ventricular ejection fraction (LVEF) and left ventricular filling, as determined by either hand-carried ultrasound (HCU) or formal transthoracic echocardiography (TTE), in the critically ill surgical patient. MATERIALS AND METHODS: Prospective cross-sectional study of 80 surgical intensive care unit patients with concomitant (<30 minutes apart) formal TTE and clinician-performed cardiac HCU. Visual estimates of LVEF and left ventricular filling ("underfilled" vs "normally filled") were recorded, both by clinicians performing HCU and fellowship-trained echocardiographers. RESULTS: Bland-Altman plot analysis of LVEF estimates revealed good interobserver agreement between HCU and formal TTE (% LVEF mean bias, -2.2; with 95% limits of agreement, +/-22.1). This was similar to agreement between independent echocardiography observers (% LVEF mean bias, 1.3; with 95% limits of agreement, +/-21.0). However, assessments of left ventricular filling demonstrated only fair to moderate interobserver agreement (kappa = 0.22-0.40). Of note, a greater percentage of the 5 standard acoustic windows were obtainable using formal TTE (72% vs 56%). CONCLUSIONS: Formal TTE offers no advantage over HCU for determination of LVEF in critically ill surgical patients, even though the former allows for a more complete examination. However, estimations of left ventricular filling only demonstrate fair to moderate interrater agreement and thus should be interpreted with care when used as markers of volume responsiveness.
Authors:
Dustin G Mark; Geoffrey E Hayden; Bonnie Ky; Anna Paszczuk; Monica Pugh; Shannon Matthews; Annamarie Horan; Vicente H Gracias; James N Kirkpatrick; Anthony J Dean
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Publication Detail:
Type:  Journal Article     Date:  2009-01-17
Journal Detail:
Title:  Journal of critical care     Volume:  24     ISSN:  1557-8615     ISO Abbreviation:  J Crit Care     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-08-11     Completed Date:  2009-12-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610642     Medline TA:  J Crit Care     Country:  United States    
Other Details:
Languages:  eng     Pagination:  470.e1-7     Citation Subset:  IM    
Affiliation:
Department of Emergency Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA. dustin.mark@uphs.upenn.edu
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MeSH Terms
Descriptor/Qualifier:
Critical Illness
Cross-Sectional Studies
Echocardiography / instrumentation,  methods*
Female
Heart Ventricles / ultrasonography
Humans
Intensive Care Units
Male
Middle Aged
Point-of-Care Systems
Prospective Studies
Stroke Volume*
Ventricular Function, Left*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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