Thromb Haemost 1988; 60(02): 217-219
DOI: 10.1055/s-0038-1647032
Original Article
Schattauer GmbH Stuttgart

Relative Sensitivity of Different Tests in the Detection of Low Titer Lupus Anticoagulants

B Lesperance
The Hôpital Ste-Justine, Université de Montréal McGill University, Montreal, Canada
,
M David
The Hôpital Ste-Justine, Université de Montréal McGill University, Montreal, Canada
,
J Rauch
*   The Montreal General Research Institute, McGill University, Montreal, Canada
,
C Infante-Rivard
The Hôpital Ste-Justine, Université de Montréal McGill University, Montreal, Canada
,
G E Rivard
The Hôpital Ste-Justine, Université de Montréal McGill University, Montreal, Canada
› Author Affiliations
Further Information

Publication History

Received 30 March 1988

Accepted after revision 20 May 1988

Publication Date:
28 June 2018 (online)

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Summary

Lupus anticoagulants (LA) and anticardiolipin antibodies have been strongly associated with recurrent abortion and fetal death. Because steroids have been reported to improve the fetal outcome of LA associated pregnancies, presumably by decreasing the levels of LA, it becomes desirable to have a simple and reliable test to monitor the levels of the putative antibody. To this effect, we assessed the capacity of the following coagulation tests to detect the presence of LA in serial dilutions of patient plasma with pooled normal plasma: kaolin clotting time (KCT), tissue thromboplastin inhibition test (TTIT), dilute Russell Viper venom time (DRVVT) and activated partial thromboplastin time with standard and high concentrations of phospholipids (SC and HCAPTT). All samples were also evaluated for the presence of anticardiolipin antibodies with an ELISA. The KCT was able to detect LA at a much greater dilution in normal plasma than any of the other clotting assays. The ELISA was comparable to KCT in its ability to detect high dilutions of LA.