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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
1
|
| pubmed:dateCreated |
1997-2-11
|
| pubmed:abstractText |
To characterize plaque morphologic characteristics of transplant coronary artery disease early and late after cardiac transplantation, 72 patients were studied with intravascular ultrasonography during routine coronary angiography (group 1, 25 patients < or = 2 months after surgery; group 2, 47 patients > or = 12 months after surgery). Both groups had comparable baseline characteristics. Three hundred fifty-one segments were imaged in 127 coronary arteries (4.9 +/- 1.8 segments per patient). By intravascular ultrasonography, relevant intimal thickening (> 0.3 mm) was found in the majority of patients (68% for group 1 and 72% for group 2). Angiography detected abnormal findings in only 16% and 32% for groups 1 and 2, respectively. Mean intimal index was higher in patients late after transplantation (27% +/- 12% vs 17% +/- 12%, respectively; p < 0.01). Maximal and mean plaque thickness were comparable in both groups, whereas a higher mean plaque circumference was found in group 2 (278 +/- 66 degrees vs 211 +/- 75 degrees, respectively; p < 0.002). The lesions were more eccentric in patients early after transplantation (mean eccentricity index 95% +/- 7% vs 77% +/- 15%, respectively; p < 0.0001). Diffuse, concentric intimal thickening was not a common pattern. Maximal plaque thickness correlated with donor age (r = 0.50, p < 0.0001). Coronary lesions were frequent even early after transplantation, with predominantly eccentric plaque morphologic characteristics indicative of preexisting atherosclerosis. Later after transplantation, a more homogeneous plaque distribution was seen, partly with diffuse concentic intimal thickening. Late transplant coronary artery disease appears to be a combination of preexisting native and acquired immune-mediated coronary artery disease.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
AIM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jan
|
| pubmed:issn |
0002-8703
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
133
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
29-35
|
| pubmed:dateRevised |
2006-2-27
|
| pubmed:meshHeading |
pubmed-meshheading:9006287-Adult,
pubmed-meshheading:9006287-Coronary Angiography,
pubmed-meshheading:9006287-Coronary Disease,
pubmed-meshheading:9006287-Female,
pubmed-meshheading:9006287-Heart Transplantation,
pubmed-meshheading:9006287-Humans,
pubmed-meshheading:9006287-Male,
pubmed-meshheading:9006287-Middle Aged,
pubmed-meshheading:9006287-Time Factors
|
| pubmed:year |
1997
|
| pubmed:articleTitle |
Coronary plaque morphologic characteristics early and late after heart transplantation: in vivo analysis with intravascular ultrasonography.
|
| pubmed:affiliation |
Department of Internal Medicine, Klinikum Innenstadt, University of Munich, Germany.
|
| pubmed:publicationType |
Journal Article
|