| Shortening patterns of the infundibulum in valvular pulmonary stenosis before and after balloon valvuloplasty. | |
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MedLine Citation:
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PMID: 10982703 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We analyzed shortening patterns of the infundibulum in 11 patients with valvular pulmonary stenosis (PS) before and immediately after balloon valvuloplasty and at follow-up. The control group consisted of 32 patients with Kawasaki disease. The valvuloplasty was performed at the age of 5.8 +/- 2.9 (mean +/- SD) years and a satisfactory relief of obstruction was achieved in each. The follow-up study was done at 1.1 +/- 0.2 years after the valvuloplasty. With the use of lateral projection of right ventriculograms, transverse diameters of the midinfundibulum were measured over one cardiac cycle from initiation of the pulmonary valve opening. Indices demonstrating shortening patterns of the infundibulum were as follows: time to the beginning of shortening (TBS), time to the shortest diameter (TSD), and shortening fraction (SF). TBS were prolonged before the valvuloplasty, whereas it was comparable with that in the control group, immediately after the procedure and at follow-up. TSD was increased before and immediately after the valvuloplasty, but it was normalized at follow-up. SF was increased at every observation. Thus, shortening patterns of the infundibulum in PS were characterized by increasing TBS, TSD, and SF. At short-term follow-up following the valvuloplasty, TBS and TSD were normalized, which could be a result of a successful relief of pulmonary obstruction. In contrast, SF remained elevated, which indicates that the musculature of the infundibulum remains hypertrophic up to 1 year after the valvuloplasty. |
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Authors:
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T Akiba; M Nakasato; H Suzuki; S Sato; T Sato |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pediatric cardiology Volume: 21 ISSN: 0172-0643 ISO Abbreviation: Pediatr Cardiol Publication Date: 2000 Sep-Oct |
Date Detail:
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Created Date: 2000-12-15 Completed Date: 2001-01-04 Revised Date: 2008-02-20 |
Medline Journal Info:
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Nlm Unique ID: 8003849 Medline TA: Pediatr Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 448-51 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Yamagata City Hospital Saiseikan, Yamagata, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Balloon Dilatation* Case-Control Studies Child Child, Preschool Cineangiography Female Hemodynamics Humans Infant Male Postoperative Complications* Pulmonary Subvalvular Stenosis* Pulmonary Valve Stenosis / surgery* Statistics, Nonparametric |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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