| Immunohistochemical characterization of coronary thrombi in allograft vascular disease. | |
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MedLine Citation:
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PMID: 10762213 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Coronary thrombosis is a frequent complication of allograft vascular disease (AVD) in cardiac transplant recipients. No data are available on thrombus composition in these hearts. METHODS: The present study aimed at characterizing thrombus components in coronary arteries from transplanted hearts with AVD, using single and double immunostain with anti-gpIIb-IIIa, anti-fibrin, and anti-endothelial antibodies. The pathologic series consists of 55 grafts survived longer than 2 months, and obtained from 55 patients deceased (n=44) or undergone repeat transplantation (n=11). RESULTS: Mural thrombi were found in multiple segments of 75 of 440 total coronary vessels (17%) (recent in 33, organizing in 28, and organized in 14), whereas occlusive thrombi were found in 19 vessels (8 recent and 11 with multichannel pattern of organization). Recent and thin mural thrombi were mostly constituted of CD41a- and CD61-positive platelets; the amount of fibrin progressively increased with the increase of thrombus size. In organizing mural thrombi, gpIIb-IIIa immunostain was still present. Fibrin was the only identifiable thrombus component in old mural thrombi embedded within the intimal lesions. Recent occlusive thrombi immunoreacted both with anti-CD41a and anti-CD61 and with anti-fibrin antibodies, whereas organized occlusive thrombi with multichannel pattern exclusively immunoreacted with anti-fibrin antibodies. Double immunostain showed that mural thrombi were stratified on de-endothelized arterial segments. CONCLUSIONS: Thrombus composition is related to both type and "age" of thrombus, with platelets as the early and major components of mural microthrombi at one end of the spectrum, and fibrin as the dominant component of occlusive thrombi at the other end. |
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Authors:
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E Arbustini; B Dal Bello; P Morbini; A Gavazzi; G Specchia; M Viganò |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Transplantation Volume: 69 ISSN: 0041-1337 ISO Abbreviation: Transplantation Publication Date: 2000 Mar |
Date Detail:
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Created Date: 2000-05-09 Completed Date: 2000-05-09 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0132144 Medline TA: Transplantation Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1095-101 Citation Subset: IM |
Affiliation:
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Pathology Department, IRCCS Policlinico San Matteo, University of Pavia, Italy. e.arbustini@smatteo.pv.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Coronary Thrombosis / pathology* Endothelium, Vascular / pathology Female Heart Transplantation / pathology Humans Immunohistochemistry Male Middle Aged Prevalence Staining and Labeling / methods Transplantation, Homologous / adverse effects* Vascular Diseases / etiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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