Document Detail


Quantitative angiographic assessment of elastic recoil after percutaneous transluminal coronary angioplasty.
MedLine Citation:
PMID:  2220628     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Little is known about the elastic behavior of the coronary vessel wall directly after percutaneous transluminal coronary angioplasty (PTCA). Minimal luminal cross-sectional areas of 151 successfully dilated lesions were studied in 136 patients during balloon inflation and directly after withdrawal of the balloon. The circumvent geometric assumptions about the shape of the stenosis after PTCA, a videodensitometric analysis technique was used for the assessment of vascular cross-sectional areas. Elastic recoil was defined as the difference between balloon cross-sectional area of the largest balloon used at the highest pressure and minimal luminal cross-sectional area after PTCA. Mean balloon cross-sectional area was 5.2 +/- 1.6 mm2 with a mean minimal cross-sectional area of 2.8 +/- 1.4 mm2 immediately after inflation. Oversizing of the balloon (balloon artery ratio greater than 1) led to more recoil (0.8 +/- 0.3 vs 0.6 +/- 0.3 mm, p less than 0.001), suggestive of an elastic phenomenon. A difference in recoil of the 3 main coronary branches was observed: left anterior descending artery 2.7 +/- 1.3 mm2, circumflex artery 2.3 +/- 1.2 mm2 and right coronary artery 1.9 +/- 1.5 mm2 (p less than 0.025). The difference was still statistically significant if adjusted for reference area. Thus, nearly 50% of the theoretically achievable cross-sectional area (i.e., balloon cross-sectional area) is lost shortly after balloon deflation.
Authors:
B J Rensing; W R Hermans; K J Beatt; G J Laarman; H Suryapranata; M van den Brand; P J de Feyter; P W Serruys
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  66     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1990 Nov 
Date Detail:
Created Date:  1990-11-21     Completed Date:  1990-11-21     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1039-44     Citation Subset:  AIM; IM    
Affiliation:
Catheterization Laboratory, Thoraxcenter, Erasmus University, Rotterdam, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Absorptiometry, Photon
Angioplasty, Transluminal, Percutaneous Coronary*
Coronary Angiography
Coronary Vessels / physiopathology*
Elasticity
Female
Humans
Male

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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