ISSN:
1432-1971
Keywords:
Key words: Doppler echocardiography — Transmitral flow — Very low birth weight infant
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract. Doppler transmitral flow velocity was measured in premature infants. The early diastolic peak velocity, the peak velocity of early diastole/peak velocity of atrial contraction ratio, and total flow velocity–time integral increased significantly with advancing gestational age and body weight. The peak filling rate normalized to stroke volume (NPFR) did not correlate with gestational age or body weight. Moreover, mean NPFR was not significantly different between premature and term infants. Thus NPFR demonstrates that changes in the left ventricular filling patterns with advancing gestational age and increasing body size are related to the progressive increase in loading conditions, rather than to sequential changes in myocardial properties.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002469900053
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