Abstract
Echocardiograms were performed in 20 infants and children with isolated ventricular septal defects (VSD) undergoing cardiac catheterization. The magnitude of the left-to-right shunt was expressed as the pulmonary-to-systemic flow ratio (Qp/Os) and was compared to a ratio of the echographic left atrial (LA) diameter to the aortic root (Ao) diameter (LA/Ao). The Qp/Qs was also compared to LA/m2. Thirty-three normal children served as controls. The LA/m2 and Ao/m2 were significantly larger in normal infants under one year of age than in children above one year. The LA/Ao, however, was not influenced by age or size. A strong linear relationship was found between Qp/Qs and the LA/Ao (r = 0.96). The LA/Ao measurement appears to be helpful in the noninvasive assessment of the left-to-right shunt in patients with VSD.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physiology (medical),Cardiology and Cardiovascular Medicine
Reference10 articles.
1. The natural history of ventricular septal defects in infancy
2. Carter WH Bowman CR: Estimation of shunt flow in isolated ventricular septal defect by echocardiogram. (abstr) Circulation 7 (suppl IV): IV-64 1973
3. Echocardiographic Assessment of Ductus Arteriosus Shunt in Premature Infants
4. Laird WP Fixler DE: Echo measurement of left atrial diameter as a guide to pulmonic:systemic flow in patent ductus arteriosus. (abstr) Pediatr Res 9: 267 1975
Cited by
26 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