| Intravascular ultrasound imaging before and after balloon angioplasty for pulmonary artery stenosis. | |
| | |
MedLine Citation:
|
PMID: 10348571 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Previous reports regarding intravascular ultrasound (IVUS) imaging of the pulmonary arteries in children and its application to balloon pulmonary angioplasty are limited. This study was designed to compare findings of IVUS imaging and those of angiography of the pulmonary artery before and after the balloon angioplasty procedure. Thirty patients had significant pulmonary artery stenosis and underwent balloon angioplasty. In all, of 34 branch pulmonary arteries were dilated. All patients underwent both angiography and IVUS imaging at the time of balloon angioplasty. The mean age at balloon angioplasty was 5.7 +/- 4.0 yr. One echo-dense layer on IVUS was detected in 9% of the 34 stenotic vessels, and a two- or three-layered vascular wall pattern in 91%. The thickness of intima-medial layer (inner and middle layers) was greater than normal in 91% of stenotic vessels. After balloon angioplasty, intimal flaps and aneurysm were observed at 29 and 28 locations, respectively. Of these locations, the intimal flaps were detected by angiography in 44% and by IVUS in 100%; the aneurysm was detected by angiography in 61% and by IVUS in 93%. Media rupture was observed at 26 locations, and the change was detected only by IVUS. The present study suggests that intimal and medial changes in the pulmonary artery can be detected more precisely by IVUS than by angiography. |
| | |
Authors:
|
T Nakanishi; K Tobita; M Sasaki; C Kondo; Y Mori; H Tomimatsu; M Nakazawa; Y Imai; K Momma |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions Volume: 46 ISSN: 1522-1946 ISO Abbreviation: Catheter Cardiovasc Interv Publication Date: 1999 Jan |
Date Detail:
|
Created Date: 1999-07-01 Completed Date: 1999-07-01 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 100884139 Medline TA: Catheter Cardiovasc Interv Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 68-78 Citation Subset: IM |
Affiliation:
|
Department of Pediatric Cardiology and Pediatric Cardiovascular Surgery, Heart Institute of Japan, Tokyo Women's Medical College, Japan. pnakanis@hij.twmc.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Angioplasty, Balloon* Child Child, Preschool Constriction, Pathologic Humans Infant Pulmonary Artery / pathology*, radiography, ultrasonography* Treatment Outcome Tunica Intima / pathology, ultrasonography Ultrasonography, Interventional* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Utility of cardiac catheterization in pediatric cardiac patients on ECMO.
Next Document: Rotational atherectomy for left anterior descending artery septal perforator stenosis.