Kungwankiattichai S, Nakkinkun Y, Owattanapanich W, Ruchutrakool T. High Incidence of Antiphospholipid Antibodies in Newly Diagnosed Patients With Lymphoma and a Proposed aPL Predictive Score.
Clin Appl Thromb Hemost 2021;
26:1076029620928392. [PMID:
32633133 PMCID:
PMC7495517 DOI:
10.1177/1076029620928392]
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Abstract
Given that the presence of antiphospholipid (aPL) antibodies has been proposed to
be associated with thrombosis in newly diagnosed patients with lymphoma, we
conducted a prospective cohort study on these patients. In all, 154 patients
were enrolled. More than half were advanced-stage diffuse large B-cell lymphoma.
Approximately one-third (35.7%) of the patients had the presence of aPLs, with
single-, double-, and triple-aPL positivities of 29.9%, 5.2%, and 0.6%,
respectively. Of the 154 patients, 8 (5.19%) developed symptomatic thrombosis
during follow-up. There were no significant differences in the incidences of
thrombosis for the aPL-positive and aPL-negative groups (5.5% vs 5.1%;
P = 1.000). In a multivariate analysis, patients with male
sex and lymphoma stage IV were significant risk factors for aPL positivity, with
odds ratio [OR] = 2.22 (95% CI: 1.11-4.45), P = .025, and OR:
2.34 (95% CI: 1.17-4.67), P = .016, respectively. An aPL
predictive score of ≥−1 was predictive of aPL positivity, with a sensitivity of
83.6% and specificity of 34.3%.
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