Thromb Haemost 2006; 96(01): 19-23
DOI: 10.1160/TH05-11-0737
Blood Coagulation, Fibrinolysis and Cellular Haemostasis
Schattauer GmbH

Antiphospholipid antibodies and hyperhomocysteinaemia in patients with vascular occlusive disease

Patricia Casais
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Susana S. Meschengieser
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Laura C. Gennari
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Maria F. Alberto
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Analia Sanchez-Luceros
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Alicia N. Blanco
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
,
Maria A. Lazzari
1   Departamento de Hemostasia y Trombosis, Instituto de Investigaciones Hematologicas “Mariano R. Castex”, Academia Nacional de Medicina de Buenos Aires, Buenos Aires, Argentina
› Author Affiliations
Financial support: Dr. Casais was supported by a grant of the Fundación “René Barón”.
Further Information

Publication History

Received 14 November 2005

Accepted after resubmission 30 May 2006

Publication Date:
29 November 2017 (online)

Summary

Hyperhomocysteinemia (HHcy), lupus anticoagulant (LA) and anticardiolipin antibodies (ACA) are independent risk factors for thrombosis. Even though risks are cumulative, the clinical impact of the association is unknown. Preliminary data suggested that HHcy might be associated with transient LA and ACA, disappearing after lowering HHcy. We prospectively evaluated the association of HHcy and LA/ACA, the effect of lowering HHcy with folic acid in LA behavior, and the correlation of the initial dRVVT with LA behavior after folic acid in 210 patients with thrombosis and adverse pregnancy outcomes. Prevalence of HHcy among patients with LA/ACA was 40%. Thirty-one patients exhibited only HHcy (15%; Group 1), 106 (50%; Group 2) had only LA/ACA, while 73 (35%; Group 3) had both. After therapy, 63% and 64% of LA/ACA remained positive in Group 3 and 2, respectively. We observed a trend towards a more positive dRVVT in persistent LA after lowering HHcy. No differences in clinical presentation or in outcomes after two years of followup were observed among the groups. Even though the association of HHcy and LA/ACA is common in patients with thrombosis, it might have no prognostic implications if Hcy levels are lowered. Currently, no laboratory findings correlate with LA behavior, which is independent of homocysteine levels and vitamin treatment.

 
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