Cited by 25Systemic Lupus Erythematosus ResearchBlood Coagulation and Thrombosis MechanismsHeparin-Induced Thrombocytopenia and Thrombosis

The Russell viper venom time (RVVT) test for investigation of lupus anticoagulant (LA)

Favaloro, Emmanuel J.·2019·American Journal of Hematology

Abstract

Lupus anticoagulants (LAs) are a laboratory representation of the clinical syndrome of antiphospholipid syndrome (APS), and can also arise in other pathological states. Laboratory testing for LA is complex and three separate recent guidelines have been published. One test, the Russell viper venom time (RVVT), is the mandated laboratory test for inclusion in LA identification/exclusion in all three guidance documents. This is because the the RVVT is recognized to have great sensitivity for LA, with this generally recognized to be greater than that of most other LA screening assays. However, the RVVT is also very sensitive to the presence of many anticoagulant drugs, which diminishes its specificity for LA. Various strategies can be used to improve LA specificity and reduce anticoagulant assay interference.

Integrity signals

Registry

Crossref · 10.1002/ajh.25606

Cites

5 of 5 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The dRVVT assay is the first recommended test for detecting LA due to its high sensitivity and specificity.

    “The diluted Russell’s viper venom time (dRVVT) assay is the first recommended test for detecting LA due to its high sensitivity and specificity [14], while the LA-sensitive activated partial thromboplastin time (aPTT) assay can be used as a secondary test [[11], [12], [13], [14]].”
  • The LA-sensitive aPTT assay can be used as a secondary test for LA detection.

    “The diluted Russell’s viper venom time (dRVVT) assay is the first recommended test for detecting LA due to its high sensitivity and specificity [14], while the LA-sensitive activated partial thromboplastin time (aPTT) assay can be used as a secondary test [[11], [12], [13], [14]].”
  • Compared with dRVVT, aPTT is a more complex assay involving multiple enzymatic steps and may be influenced by physiologic and pathologic factors unrelated to the inhibition of LA.

    “Compared with dRVVT, aPTT is a more complex assay involving multiple enzymatic steps and may be influenced by physiologic and pathologic factors unrelated to the inhibition of LA [14,29].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Favaloro, E. J.
Affiliations
Westmead Hospital (AU)
Corresponding author
Favaloro, Emmanuel J.
Venue
American Journal of Hematology
Publisher
Wiley
Published
2019-08-29
Volume
94
Issue
11
Pages
1290-1296
ISSN
  • 0361-8609 (ISSN-L)
  • 1096-8652
OpenAlex
W2965497613
Cited by
25
References
5
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 6 · 2022: 2 · 2021: 6 · 2020: 4 · 2019: 2
FWCI
2.65
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Hematology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Rheumatology › Systemic Lupus Erythematosus Research
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Surgery › Heparin-Induced Thrombocytopenia and Thrombosis
Keywords
lupus anticoagulant, antiphospholipid syndrome, assay interference, anticoagulants, assay specificity
MeSH terms
Animals, Anticoagulants, Blood Coagulation, False Negative Reactions, False Positive Reactions, Humans, Partial Thromboplastin Time, Prothrombin Time, Sensitivity and Specificity, Viper Venoms, Artifacts, Lupus Coagulation Inhibitor, Practice Guidelines as Topic, Daboia

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review