Adjunct Immune Globulin for Vaccine-Induced Immune Thrombotic Thrombocytopenia.
Aged
COVID-19 Vaccines
/ adverse effects
ChAdOx1 nCoV-19
Female
Fibrin Fibrinogen Degradation Products
/ analysis
Fibrinogen
/ analysis
Heparin
/ pharmacology
Humans
Immunoglobulins, Intravenous
Male
Middle Aged
Platelet Count
Platelet Factor 4
/ pharmacology
Serotonin
/ blood
Thrombocytopenia
/ blood
Thrombosis
/ etiology
Journal
The New England journal of medicine
ISSN: 1533-4406
Titre abrégé: N Engl J Med
Pays: United States
ID NLM: 0255562
Informations de publication
Date de publication:
19 08 2021
19 08 2021
Historique:
pubmed:
10
6
2021
medline:
24
8
2021
entrez:
9
6
2021
Statut:
ppublish
Résumé
The use of high-dose intravenous immune globulin (IVIG) plus anticoagulation is recommended for the treatment of vaccine-induced immune thrombotic thrombocytopenia (VITT), a rare side effect of adenoviral vector vaccines against coronavirus disease 2019 (Covid-19). We describe the response to IVIG therapy in three of the first patients in whom VITT was identified in Canada after the receipt of the ChAdOx1 nCoV-19 vaccine. The patients were between the ages of 63 and 72 years; one was female. At the time of this report, Canada had restricted the use of the ChAdOx1 nCoV-19 vaccine to persons who were 55 years of age or older on the basis of reports that VITT had occurred primarily in younger persons. Two of the patients in our study presented with limb-artery thrombosis; the third had cerebral venous and arterial thrombosis. Variable patterns of serum-induced platelet activation were observed in response to heparin and platelet factor 4 (PF4), indicating the heterogeneity of the manifestations of VITT in serum. After the initiation of IVIG, reduced antibody-induced platelet activation in serum was seen in all three patients. (Funded by the Canadian Institutes of Health Research.).
Identifiants
pubmed: 34107198
doi: 10.1056/NEJMoa2107051
pmc: PMC8362588
doi:
Substances chimiques
COVID-19 Vaccines
0
Fibrin Fibrinogen Degradation Products
0
Immunoglobulins, Intravenous
0
fibrin fragment D
0
Serotonin
333DO1RDJY
Platelet Factor 4
37270-94-3
Fibrinogen
9001-32-5
Heparin
9005-49-6
ChAdOx1 nCoV-19
B5S3K2V0G8
Types de publication
Case Reports
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
720-728Subventions
Organisme : Institute of Circulatory and Respiratory Health
ID : CIHR #452655
Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2021 Massachusetts Medical Society.
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