Acquired Symptomatic Inhibitors of Plasma Clotting Factors in Nonhemophilic Children
作者:
Beverly Ryan,
Yale Arkel,
Thomas Walters,
Daniel Frimmer,
Franklin Desposito,
期刊:
American Journal of Pediatric Hematology/Oncology
(OVID Available online 1986)
卷期:
Volume 8,
issue 2
页码: 144-148
ISSN:0192-8562
年代: 1986
出版商: OVID
关键词: Acquired clotting factor inhibitors;Circulating anticoagulants in children;Lupus anticoagulant
数据来源: OVID
摘要:
Three children presenting with severe symptomatic bleeding episodes (one child developing a life-threatening subdural hematoma) due to acquired coagulation inhibitors are reported. In two patients, there was a history of an antecedent viral syndrome. None had evidence of drug exposure or an underlying immune disorder. All responded to the administration of corticosteroids, although one patient was steroid-dependent and required immunosuppressive therapy to achieve a complete response. Laboratory characteristics did not clearly distinguish the type of circulating inhibitor present in these children. Since bleeding was a prominent feature, we suggest that the inhibitors noted represent multiple specific coagulation factor inhibitors, rather than a “lupus-like” inhibitor which represents a common antibody to phospholipid-dependent coagulation tests. Such inhibitors may not be as benign as the common lupus anticoagulant seen in adult patients and should be considered in the child with symptomatic bleeding and a prolonged partial thromboplastin time. The true incidence and exact mechanism of action of acquired inhibitors in children has not been established.
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