Affiliation:
1. From the Division of Pediatric Cardiology, School of Medicine, University of California and the Department of Cardiology and Clinical Investigation Center, U. S. Naval Hospital, San Diego, California.
Abstract
Left ventricular function was assessed in 72 normal neonates (age 5-15 days, weight 6-10 lbs) using the echocardiographically determined mean velocity of circumferential fiber shortening (VCF). Comparison between mean VCF determined echocardiographically and angiocardiographically in nine infants with congenital heart disease yielded a correlation coefficient of +0.97 (
P
< 0.001). For the group of normal newborns, mean VCF averaged 1.51 ± 0.04 (
se
) circumferences/sec with a range of 0.92 to 2.2 circ/sec. Sub-group values were: <12 hrs (N = 13) 1.48 ± 0.08 circ/sec; 12-24 hrs (N = 16) 1.46 ± 0.05 circ/sec; 24-48 hrs (N = 26) 1.44 ± 0.06 circ/sec; 48-72 hrs (N = 19) 1.57 – 0.06 circ/sec; 72-150 hrs (N = 8) 1.61 ± 0.11 circ/sec. The differences between age groups were not significant statistically. In contrast, VCF was noted to be depressed significantly in the first hour of life when normal infants were evaluated serially. These studies validate ultrasound determinations of internal shortening velocity in the neonatal period, provide normal values, and attest to the reproducibility of the method. The technique will be especially valuable for the serial, noninvasive assessment of left ventricular performance in newborn infants.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physiology (medical),Cardiology and Cardiovascular Medicine
Reference17 articles.
1. Echocardiographie Criteria for Normal Newborn Infants
2. com.atypon.pdfplus.internal.model.plusxml.impl.AuthorGroup@79abd2c9
: A new technique for the noninvasive study of cyanotic congenital heart disease. (abstr) Circulation 48 (suppl IV) :IV-81 1973
3. com.atypon.pdfplus.internal.model.plusxml.impl.AuthorGroup@4647fed4
: Advances in the non-invasive diagnosis of endocardial cushion defect. (abstr) Circulation 48 (suppl IV):IV-224 1973
Cited by
59 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Normative Echocardiographic Left Ventricular Parameters and Reference Intervals in Infants;Journal of the American College of Cardiology;2023-06
2. Neonatal echocardiography;Seminars in Fetal and Neonatal Medicine;2015-06
3. Cardiovascular Assessment of the Ventilated Neonate;Assisted Ventilation of the Neonate;2011
4. Ultrasound in Congenital Heart Disease;Radiological Imaging of the Neonatal Chest;2008
5. The history of echocardiography;Ultrasound in Medicine & Biology;2004-12