TY - JOUR
T1 - Patency of the ductus arteriosus in normal neonates
T2 - Two-dimensional echocardiography versus doppler assessment
AU - Huhta, James C.
AU - Cohen, Mark
AU - Gutgesell, Howard P.
N1 - Funding Information:
of Pediatric Hospital and Jefferson Davis Hospital, Houston, Texas. Dr. Huhta was supported in part by New Investigator Research Award HL31153 and Grants HL07190 and RR-05425 from the National Institutes of Health, United States Public Health Service, Bethesda, Maryland, and by Grant RR-OO 188 from General Clinical Research Branch, National Institutes of Health, Bethesda, Maryland. Manuscript received January 31, 1984; re vised manuscript received April 2, 1984, accepted April 26. 1984.
PY - 1984
Y1 - 1984
N2 - Two-dimensional echocardiography using a high resolution, 7.5 MHz transducer was compared with Doppler echocardiography for the assessment of patency of the ductus arteriosus in normal newborn infants. Twenty-eight neonates were studied between 1 and 10 hours (mean 5.5) after birth and both examinations were possible in 27 (96%). Doppler echocardiography under two-dimensional direction indicated ductal patency in all 27 neonates. Doppler sampling in the pulmonary end of the ductus rather than the main pulmonary artery was more sensitive for detecting patency. When two-dimensional echocardiography only was used to predict patency, there was 85% sensitivity. Two-dimensional echocardiography showed no evidence of ductus arteriosus narrowing in four neonates studied shortly after birth. In 18, the pulmonary portion of the ductus arteriosus appeared narrowed and in 8 of these, the narrowing extended toward the mid-portion of the ductus. In five others, there was only mid-ductus arteriosus narrowing. It is concluded that high resolution two-dimensional echocardiography can be used to assess ductus arteriosus morphology, but is limited in predicting ductal patency near the time of normal physiologic closure. Combined two-dimensional and Doppler echocardiography is a highly sensitive technique for detection of ductal patency when sampling is performed in the pulmonary end of the ductus arteriosus.
AB - Two-dimensional echocardiography using a high resolution, 7.5 MHz transducer was compared with Doppler echocardiography for the assessment of patency of the ductus arteriosus in normal newborn infants. Twenty-eight neonates were studied between 1 and 10 hours (mean 5.5) after birth and both examinations were possible in 27 (96%). Doppler echocardiography under two-dimensional direction indicated ductal patency in all 27 neonates. Doppler sampling in the pulmonary end of the ductus rather than the main pulmonary artery was more sensitive for detecting patency. When two-dimensional echocardiography only was used to predict patency, there was 85% sensitivity. Two-dimensional echocardiography showed no evidence of ductus arteriosus narrowing in four neonates studied shortly after birth. In 18, the pulmonary portion of the ductus arteriosus appeared narrowed and in 8 of these, the narrowing extended toward the mid-portion of the ductus. In five others, there was only mid-ductus arteriosus narrowing. It is concluded that high resolution two-dimensional echocardiography can be used to assess ductus arteriosus morphology, but is limited in predicting ductal patency near the time of normal physiologic closure. Combined two-dimensional and Doppler echocardiography is a highly sensitive technique for detection of ductal patency when sampling is performed in the pulmonary end of the ductus arteriosus.
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U2 - 10.1016/S0735-1097(84)80102-3
DO - 10.1016/S0735-1097(84)80102-3
M3 - Article
C2 - 6470337
AN - SCOPUS:0021175595
SN - 0735-1097
VL - 4
SP - 561
EP - 564
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
IS - 3
ER -