Heparin-induced thrombocytopenia

© 2017 by The American Society of Hematology..

Heparin-induced thrombocytopenia (HIT) is an immune complication of heparin therapy caused by antibodies to complexes of platelet factor 4 (PF4) and heparin. Pathogenic antibodies to PF4/heparin bind and activate cellular FcγRIIA on platelets and monocytes to propagate a hypercoagulable state culminating in life-threatening thrombosis. It is now recognized that anti-PF4/heparin antibodies develop commonly after heparin exposure, but only a subset of sensitized patients progress to life-threatening complications of thrombocytopenia and thrombosis. Recent scientific developments have clarified mechanisms underlying PF4/heparin immunogenicity, disease susceptibility, and clinical manifestations of disease. Insights from clinical and laboratory findings have also been recently harnessed for disease prevention. This review will summarize our current understanding of HIT by reviewing pathogenesis, essential clinical and laboratory features, and management.

Medienart:

E-Artikel

Erscheinungsjahr:

2017

Erschienen:

2017

Enthalten in:

Zur Gesamtaufnahme - volume:129

Enthalten in:

Blood - 129(2017), 21 vom: 25. Mai, Seite 2864-2872

Sprache:

Englisch

Beteiligte Personen:

Arepally, Gowthami M [VerfasserIn]

Links:

Volltext

Themen:

37270-94-3
9005-49-6
Autoantibodies
FCGR2A protein, human
Heparin
Journal Article
Platelet Factor 4
Receptors, IgG
Research Support, N.I.H., Extramural
Review

Anmerkungen:

Date Completed 06.09.2017

Date Revised 02.02.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1182/blood-2016-11-709873

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM271035773