Abstract:
BACKGROUND:To better understand how different histologic patterns of allograft inflammation found on biopsies of human cardiac allografts progress to high-grade rejection, we undertook a statistical analysis of our institutional database to detect statistical patterns among different types of myocardial allograft inflammations found on sequential biopsies. METHODS:Biopsies were analyzed for statistical associations between high-grade rejections (International Society of Heart and Lung Transplantation [ISHLT] grade > or = 3A/4) and the type of cardiac allograft inflammation found on prior biopsies. Case cross-over and case control designs were used to compare the antecedent patterns of inflammation on biopsies with high-grade rejection compared to biopsies with low-grade rejection, all within the same subject. Quilty lesions were correlated with cyclosporine levels. RESULTS:Patients with Quilty B lesions or ISHLT grade 2/4 rejections show an increased risk for high-grade rejection on their next biopsies (Odds ratio 5.9 to 11.2). The presence of two pathological findings, especially Quilty B and grade 2/4 rejection, creates additional risk in excess of that found independently (Odds ratio >14). Quilty lesions are found only in cardiac allografts, and do not correlate with trough cyclosporine levels. CONCLUSIONS:The morphological patterns of several types of human cardiac allograft inflammation found on sequential protocol biopsies are not randomly associated. Patients with grade 2/4 rejections and Quilty B lesions show an increased risk for high-grade rejections on their next biopsies. Quilty B lesions, similar to ISHLT grade 2/4 rejections, may represent subclinical rejection. Both are more likely to progress to a high-grade rejection.
journal_name
Transplantationjournal_title
Transplantationauthors
Smith RN,Chang Y,Houser S,Dec GW,Grazette Ldoi
10.1097/00007890-200206270-00014subject
Has Abstractpub_date
2002-06-27 00:00:00pages
1928-32issue
12eissn
0041-1337issn
1534-6080journal_volume
73pub_type
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