Coronary blood flow in healthy neonates: effects of left ventricular function and mass.

Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Research Abstract Details 

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Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Abstract Text:

G Oskarsson,E Pesonen,

This study used transthoracic echocardiography, including pulsed-wave Doppler, to register coronary flow parameters in 55 healthy neonates. Intraobserver variability was tested in 20 neonates. A Doppler tracing of sufficient quality for analysis was obtained in the left anterior descending coronary artery (LAD) in 53 of 55 studies (96.4% feasibility) and in the right coronary artery (RCA) in 11 of 55 studies (20.0% feasibility). Estimation of intraobserver variability showed coefficients of variation of 7.5-8.0% for diastolic LAD Doppler flow parameters and volume flow but 17.5% for systolic peak flow velocity. Doppler flow parameters were significantly higher in the LAD than in the RCA. Correlation was found between LAD Doppler flow parameters and age, left ventricular (LV) mass, mitral peak early wave velocity as a measure of diastolic LV function, and the aortic velocity time integral/minute as a measure of systolic LV function. This study shows that diastolic LAD Doppler flow parameters and flow volume can be obtained in neonates by transthoracic echocardiography with acceptable reproducibility. In healthy neonates, left coronary flow parameters are linearly related to age, LV mass, and LV systolic and diastolic function. RCA flow parameters in neonates are lower than in the LAD.

Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Publishing Authors By Initials

G Oskarsson,E Pesonen,

For similar circulatory and respiratory physiology: cardiovascular physiology: cardiovascular physiologic processes: ventricular function: ventricular function, left research abstracts see: circulatory and respiratory physiology: cardiovascular physiology: cardiovascular physiologic processes: ventricular function: ventricular function, left research

PUBMED ID PMID:

MEDLINE DATE: 2004 Jan-Feb

Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Pediatric cardiology

VOLUME: 25

Page Numbers: 11-6

Journal Abbreviation: Pediatr Cardiol

ISSN: 0172-0643

DAY: 29

MONTH: 07

YEAR: 2003

Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Information

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LANGUAGE: eng

NlmUniqueID: 8003849

Coronary blood flow in healthy neonates: effects of left ventricular function and mass. Keywords Mesh Terms:

KEYWORDS: Ventricular Function, Left

MESH TERMS: physiology

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Grant and Affiliation Information for Coronary blood flow in healthy neonates: effects of left ventricular function and mass.

AFFILIATION: Department of Pediatrics, Division of Pediatric Cardiology, University Hospital of Lund, S-22185 Lund, Sweden. oggylfi@hn.is

Country: United States

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MEDLINETA: Pediatr Cardiol

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