| Risk factors for persistence of pulmonary arterial branch stenosis in neonates and young infants. | |
| | |
MedLine Citation:
|
PMID: 11207997 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: Pulmonary arterial branch stenosis (PBS) in neonates is considered to be transient. However, PBS has been found not only in neonates, but also in young infants. Among these patients, we encountered several patients whose PBS was still present after the age of 1 year. METHODS: To clarify the natural history of PBS in neonates and young infants, we retrospectively reviewed the records of 103 patients diagnosed with PBS in the neonatal period and early infancy. RESULTS: The PBS findings were improved in all patients. Pulmonary arterial branch stenosis disappeared in 94 patients by the age of 1 year (group A), but persisted after I year of age in nine patients (group B). Group B patients had a significantly lower mean birth weight and greater deltavelocity (the difference in the peak flow velocity between the main pulmonary artery and stenotic branch) at diagnosis than group A patients. Incidences of low birth weight (< 2,500 g) and deltavelocity above 1.2 m/s were significantly higher in group B than group A patients. There was no significant difference in the frequency of premature infants (gestational age < 36 weeks) between the groups, suggesting that intrauterine growth retardation may be related to developmental abnormalities of the pulmonary arterial branch. CONCLUSIONS: All cases of PBS in neonates and young infants were improved. However, PBS persisted in some patients after the age of 1 year. Low birth weight and deltavelocity above 1.2 m/s are risk factors for persistent PBS. Pulmonary arterial branch stenosis was not present after the age of 1 year in 62 of 63 patients without either of these risk factors. |
| | |
Authors:
|
Y Nomura; M Nakamura; Y Kono; T Fukushige; A Shimago; J Kamimura; J I Nishi; M Yoshinaga; K Miyata |
Related Documents
:
|
3062157 - Assessment of pulmonary dynamics in normal newborns: a pneumotachographic method. 339007 - Total anomalous pulmonary venous connection. long-term results following repair in infa... 15150947 - Massive pulmonary haemorrhage as a cause of death in the neonate--a retrospective review. 23278627 - A new dimension on fetal language learning. 9872347 - Improved autonomic neurocardial balance in short-term abstinent alcoholics treated with... 3766827 - Ethnic differences in preterm and very preterm delivery. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Pediatrics international : official journal of the Japan Pediatric Society Volume: 43 ISSN: 1328-8067 ISO Abbreviation: Pediatr Int Publication Date: 2001 Feb |
Date Detail:
|
Created Date: 2001-03-06 Completed Date: 2001-05-10 Revised Date: 2008-05-21 |
Medline Journal Info:
|
Nlm Unique ID: 100886002 Medline TA: Pediatr Int Country: Australia |
Other Details:
|
Languages: eng Pagination: 36-41 Citation Subset: IM |
Affiliation:
|
Department of Pediatrics, Faculty of Medicine, Kagoshima University, Japan. uichi@m2.kufm.kagoshima-u.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Age Factors Blood Flow Velocity Disease Progression Echocardiography Humans Infant Infant, Low Birth Weight Infant, Newborn Pulmonary Artery / abnormalities* Pulmonary Valve Stenosis / physiopathology*, ultrasonography Retrospective Studies Risk Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Contact pressure distribution in the supine position in low-birth weight infants analyzed by a photo...
Next Document: Idiopathic sustained left ventricular tachycardia in pediatric patients.