Journal
THROMBOSIS RESEARCH
Volume 223, Issue -, Pages 87-94Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.thromres.2022.12.001
Keywords
Thrombophilia; Antiphospholipid syndrome; Guideline adherence; Clinical-decision making; Venous thromboembolism
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This study aimed to investigate the adherence to thrombophilia testing guidelines, its therapeutic impact, and identify the patients' clinical characteristics mostly associated with treatment decisions. The findings showed poor adherence to the guidelines and no impact on treatment decisions. Therefore, refinement of selection criteria is needed to increase the therapeutic impact of thrombophilia testing.
Introduction: The collected evidence on thrombophilia guidelines is scarce and data about their impact on clinical decisions are unknown. We aimed to investigate the adherence to thrombophilia testing guidelines, its thera-peutic impact in patients with guideline-adherent and non-adherent testing and identify the patients' clinical characteristics mostly associated with treatment decisions.Materials and methods: We conducted a single-center cross-sectional study of patients referred for thrombophilia testing at the outpatient clinic of a tertiary hospital between 01/2010-10/2020. We systematically evaluated the adherence of thrombophilia testing to internal guidelines and the influence of test results on anticoagulation therapy. Using multivariable logistic regression, we evaluated the association between clinical characteristics and influence of thrombophilia tests on anticoagulation therapy in the entire cohort and by indication for referral.Results: Of 3686 included patients, mostly referred for venous thromboembolism (2407, 65 %) or arterial thrombosis (591, 16 %), 3550 patients (96 %) underwent thrombophilia testing. Indication for testing was ac-cording to guidelines in 1208 patients (33 %). Test results influenced treatment decisions in 56 of 1102 work-ups (5.1 %) that were adherent to guidelines, and in 237 of 2448 (9.7 %) non-adherent work-ups (absolute differ-ence, 4.3 %; 95 % confidence interval, 2.9-6.3 %). Age < 50 years, female sex, absence of risk factors and co-morbidities, weakly provoked venous thromboembolism and referral indication other than venous thrombo-embolism were associated with influence on anticoagulation therapy.Conclusions: Adherence to guidelines for thrombophilia testing was poor and did not have an impact on treatment decisions. Refinement of selection criteria is needed to increase the therapeutic impact of thrombophilia testing.
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