Document Detail


Is combined atrial volumetrics by two-dimensional echocardiography a suitable measure for quantitative assessment of the hemodynamic significance of patent ductus arteriosus in neonates and infants?
MedLine Citation:
PMID:  20545984     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Patent ductus arteriosus (PDA) is a common cardiac problem in neonates and infants, but determination of its hemodynamic significance can be challenging. We hypothesized that combined left (LA) and right atrial (RA) volumes physiologically best reflect hemodynamically significant patent ductus arteriosus (HSPDA), and utilized two-dimensional echocardiography (2DE) derived atrial volumes to test this hypothesis.
METHODS: 2DE examinations with good-quality images in 138 neonates <3 months corrected gestational age with PDA, and 50 normal neonates without PDA were selected. Measurements of LA, RA, and combined atrial volumes were performed, in addition to transductal diameters, left atrial to aortic dimension (LA:Ao), and left ventricular end-diastolic to aortic dimension ratios. An experienced cardiologist, blinded to 2DE images of atria and ventricles and to the above measurements, independently assessed HSPDA based only on images and Doppler data of the ductus itself, thus identifying each PDA as of low hemodynamic significance or HSPDA.
RESULTS: Receiver operating characteristic (ROC) curves showed indexed LA volumes and LA/RA volume ratios to have moderate power to discriminate HSPDA from low hemodynamic burden PDA. Classic LA:Ao ratio, combined atrial volumes, and RA volumes yielded ROC areas that appeared less promising as discriminators for HSPDA.
CONCLUSION: Atrial volume measurements in neonates and infants have a linear association with body surface area and show acceptable inter- and intraobserver agreement. Indexed LA volume and LA/RA volume ratio are potentially useful markers for HSPDA. RA dilation due to left to right shunting through the patent foramen ovale as quantified by RA volume measurements does not appear to be an important marker for HSPDA.
Authors:
David W Jantzen; Osamah Aldoss; Bethany Sanford; Scott E Fletcher; David A Danford; Shelby Kutty
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Publication Detail:
Type:  Journal Article     Date:  2010-06-09
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  27     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-26     Completed Date:  2010-12-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  696-701     Citation Subset:  IM    
Affiliation:
Joint Division of Pediatric Cardiology, University of Nebraska/Creighton University, Children's Hospital and Medical Center, Omaha, Nebraska 68114, USA.
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Ductus Arteriosus, Patent / ultrasonography*
Echocardiography / methods*
Female
Heart Atria / ultrasonography*
Humans
Image Enhancement / methods
Image Interpretation, Computer-Assisted / methods*
Imaging, Three-Dimensional / methods*
Infant
Infant, Newborn
Male
Reproducibility of Results
Sensitivity and Specificity

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


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