Document Detail

Comparison of impedance cardiography to direct Fick and thermodilution cardiac output determination in pulmonary arterial hypertension.
MedLine Citation:
PMID:  15073478     Owner:  NLM     Status:  MEDLINE    
Cardiac output (CO) is an important diagnostic and prognostic tool for patients with ventricular dysfunction. Pulmonary hypertension patients undergo invasive right heart catheterization to determine pulmonary vascular and cardiac hemodynamics. Thermodilution (TD) and direct Fick method are the most common methods of CO determination but are costly and may be associated with complications. The latest generation of impedance cardiography (ICG) provides noninvasive estimation of CO and is now validated. The purpose of this study was to compare ICG measurement of CO to TD and direct Fick in pulmonary hypertension patients. Thirty-nine enrolled patients were analyzed: 44% were male and average age was 50.8+/-17.4 years. Results for bias and precision of cardiac index were as follows: ICG vs. Fick (-0.13 L/min/m2 and 0.46 L/min/m2), TD vs. Fick (0.10 L/min/m2 and 0.41 L/min/m2), ICG vs. TD (respectively, with a 95% level of agreement between -0.72 and 0.92 L/min/m2; CO correlation of ICG vs. Fick, TD vs. Fick, and ICG vs. TD was 0.84, 0.89, and 0.80, respectively). ICG provides an accurate, useful, and cost-effective method for determining CO in pulmonary hypertension patients, and is a potential tool for following responses to therapeutic interventions.
Gordon L Yung; Peter F Fedullo; Katie Kinninger; Wayne Johnson; Richard N Channick
Related Documents :
10548208 - Cardiac output can be reliably measured noninvasively after coronary artery bypass graf...
7706098 - The effect of patient position on the reproducibility of cardiac output measurements.
23222698 - Current aspects of correction of neurohumoral system activity in patients after myocard...
14640118 - Total arterial compliance is a major determinant of peak oxygen uptake.
23291148 - Association of cardiac troponin t with left ventricular structure and function in ckd.
20447578 - Evidence-based heart failure performance measures and clinical outcomes: a systematic r...
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Congestive heart failure (Greenwich, Conn.)     Volume:  10     ISSN:  1527-5299     ISO Abbreviation:  Congest Heart Fail     Publication Date:    2004 Mar-Apr
Date Detail:
Created Date:  2004-04-09     Completed Date:  2004-07-15     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9714174     Medline TA:  Congest Heart Fail     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7-10     Citation Subset:  IM    
Division of Pulmonary and Critical Care Medicine, University of California San Diego Medical Center, San Diego, CA 92103-8373, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Aged, 80 and over
Cardiac Output / physiology*
Cardiography, Impedance / methods*
Hypertension, Pulmonary / diagnosis*,  physiopathology
Middle Aged
Oxygen Consumption / physiology
Thermodilution / methods*

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

Previous Document:  Systolic hypertension in the elderly: pushing the frontiers of therapy--a suggested new approach.
Next Document:  Comparison of changes in ejection fraction to changes in impedance cardiography cardiac index and sy...