Document Detail

Follow-up patency of side branches covered by intracoronary Palmaz-Schatz stent.
MedLine Citation:
PMID:  7872167     Owner:  NLM     Status:  MEDLINE    
To assess the risk of late side branch occlusion after Palmaz-Schatz stent deployment, we analyzed the angiographic evolution of 62 patients treated by successful stent implantation who had a total of 85 side branches starting from the stented segment. Side branches were considered minor (n = 39) when the diameter was < 1 mm and intermediate (n = 46) when the vessel had > or = 1 mm diameter. One angiographic follow-up study was available in all patients at 8 +/- 5 months. Eight minor branches presented some degree of stenosis at origin before stent deployment (4 totally occluded). After stent deployment, 32 (82%) of 39 remained unchanged and 3 became occluded. Late progression at origin occurred in 4 of 34 (3 occluded). Before stent deployment, 48% of the intermediate branches had some compromise degree at their starting point (1 totally occluded). Eight of 45 intermediate branches became occluded after stent implantation. Late progression at origin happened in 5 of 32 branches (2 occluded). Some degree of follow-up stenosis regression at the origin was observed in 22 (26%) of 85 arteries. Neither clinical nor angiographic factors could be identified as predictors of late side branch occlusion or stenosis progression at its origin. Later occlusion or progression at origin of a side branch covered by a Palmaz-Schatz stent seems to be an uncommon occurrence (7% and 12% respectively) that cannot be predicted by angiographic or clinical factors. On the contrary, regression at follow-up of a side branch-origin stenosis can also come about.
M Pan; A Medina; J Suárez de Lezo; M Romero; F Melián; D Pavlovic; E Hernández; J Segura; J Marrero; F Torres
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  129     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-03-27     Completed Date:  1995-03-27     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  436-40     Citation Subset:  AIM; IM    
Hospital Reina Sofía, University of Córdoba, Spain.
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MeSH Terms
Coronary Angiography
Coronary Disease / etiology,  radiography*,  surgery*
Follow-Up Studies
Graft Occlusion, Vascular / etiology,  radiography*
Middle Aged
Risk Factors
Vascular Patency

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