Cited by 40Blood Coagulation and Thrombosis MechanismsClinical Laboratory Practices and Quality ControlBlood properties and coagulation

Detection of shortened activated partial thromboplastin times: an evaluation of different commercial reagents

ten Boekel, Edwin, Böck, Martine, Vrielink, Gert-Jan, Liem, Robert, Hendriks, Henriet, Kieviet, Wim de·2007·Thrombosis Research

Abstract

Introduction Abnormally shortened activated partial thromboplastin times (aPTT) are associated with significantly increased risk of thrombotic disorders and in-hospital mortality. Shortened aPTTs have been related to increased levels of factor (F) VIII and thrombin-antithrombin complex (TAT). In the current study, four different commercial aPTT reagents were evaluated for their performance to detect shortened aPTTs.Materials and methods aPTT of 400 patients was determined using Actin-FS (Dade Behring), APTT-SP (Instrumentation Laboratory), Automated-APTT (bioMerieux) and Platelin-LS (bioMerieux) reagents. FVIII, FIX, FXI and TAT levels were measured in shortened and normal aPTT samples.Results An association between shortened aPTTs and elevated levels of coagulation factors (FVIII, FIX and FXI) and thrombin generation (TAT) was found with all tested aPTT reagents. Method-comparison studies demonstrated good agreement between Instrumentation Laboratory and bioMerieux reagents. However, 53 to 59% of the patients with a shortened aPTT measured with Actin-FS reagent was determined as a normal aPTT with APTT-SP, Automated-APTT and Platelin-LS reagents. These patients had increased levels of FVIII, FIX and FXI and moderately increased levels of TAT.Conclusion Overall, an acceptable agreement between the different commercial reagents was found with respect to detection of short aPTTs. However, a disparity between some of reagents existed. Actin-FS reagent appeared to be more sensitive in inducing shortened aPTT reactions than APTT-SP, Automated-APTT and Platelin-LS reagents.

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Crossref · 10.1016/j.thromres.2007.05.006

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Authors
ten Boekel, E., Böck, M., Vrielink, G.-J., Liem, R., Hendriks, H., & Kieviet, W. D.
Affiliations
Sint Lucas Andreas Hospital (NL)
Venue
Thrombosis Research
Publisher
Elsevier BV
Published
2007-01
Volume
121
Issue
3
Pages
361-367
ISSN
0049-3848 (ISSN-L)
OpenAlex
W2023223898
Cited by
40
References
21
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 4 · 2020: 5 · 2018: 1 · 2017: 1 · 2016: 2 · 2014: 1 · 2012: 5
FWCI
2.12
Type
journal article
Language
en
Open access
closed
Locations
  • Thrombosis Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
  • Health Sciences › Medicine › Physiology › Clinical Laboratory Practices and Quality Control
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Blood properties and coagulation
Keywords
factor VIII, factor IX, factor XI, thrombin-antithrombin complex, thrombin generation, method comparison, thrombotic disorders, coagulation factor levels
MeSH terms
Antithrombin III, Blood Coagulation Disorders, Factor IX, Factor VIII, Factor XI, Humans, Indicators and Reagents, Partial Thromboplastin Time, Peptide Hydrolases, Reference Values, Risk Factors, Thrombosis

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