Detecting ductal shunting in premature infants by range-gated Doppler echocardiography.

Abstract:

:Range-gated pulsed Doppler echocardiography has been reported to be a useful noninvasive bedside technic for detecting ductal left-to-right shunting in premature infants. We studied 30 premature infants with a birth weight of less than 1,500 gm, using a 5 MHz system developed by Advanced Technology Laboratories. An umbilical artery catheter was used to obtain a contrast aortogram. Twenty-three infants had both a positive flush aortogram and a continuous turbulence documented by Doppler echocardiography. A clinically audible murmur was present in 17 of these patients. In six infants there was no Doppler evidence of PDA. In five of this last group there was also a negative flush aortogram. The excellent correlation found between the Doppler and aortographic studies suggests that this noninvasive technic is very sensitive for detecting ductal left-to-right shunting, even in the absence of an audible murmur.

journal_name

South Med J

journal_title

Southern medical journal

authors

Rees A,Elbl F,Solinger R,Gattinella J,Lambert L,Cook L

doi

10.1097/00007611-198109000-00023

subject

Has Abstract

pub_date

1981-09-01 00:00:00

pages

1101-3

issue

9

eissn

0038-4348

issn

1541-8243

journal_volume

74

pub_type

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