Document Detail

Postoperative changes in angiographically normal saphenous vein coronary bypass grafts using intravascular ultrasound.
MedLine Citation:
PMID:  12541095     Owner:  NLM     Status:  MEDLINE    
We examined the process of vessel wall thickening in angiographically normal saphenous vein grafts (SVGs) using intravascular ultrasound. Fifteen SVGs were studied in the early stage (within 1 month postoperatively) and 14 SVGs in the late stage (over 6 months postoperatively). Lumen cross-sectional area (CSA) and vessel CSA were measured. Vessel wall area (VWA) was calculated and %VWA was defined as VWA / vessel CSA. Vessel CSA, VWA, and %VWA were significantly larger in the late stage than in the early stage (28.8 vs 21.6 mm(2), 15.8 vs 5.3 mm(2), 55.7% vs 24.9%, respectively) and lumen CSA was smaller in the late stage (12.8 vs 16.2 mm(2)). VWA correlated with vessel CSA, but not with lumen CSA. The time course of %VWA showed that %VWA in the late stage was a plateau state. From these findings, we concluded that the wall thickening process in SVGs begins within 6 months postoperatively and is accompanied by compensatory vessel enlargement.
Yoshiharu Higuchi; Atsushi Hirayama; Masahiko Shimizu; Tetsuo Sakakibara; Kazuhisa Kodama
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Heart and vessels     Volume:  17     ISSN:  0910-8327     ISO Abbreviation:  Heart Vessels     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2003-01-23     Completed Date:  2003-06-11     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8511258     Medline TA:  Heart Vessels     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  57-60     Citation Subset:  IM    
Cardiovascular Division, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, Japan.
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MeSH Terms
Coronary Artery Bypass*
Middle Aged
Postoperative Care*
Saphenous Vein / radiography*,  transplantation,  ultrasonography*
Statistics as Topic
Time Factors
Treatment Outcome
Ultrasonography, Interventional*

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

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