Acquired von Willebrand syndrome in ECMO patients: A 3-year cohort study

Bernd Panholzer, Tido Bajorat, Assad Haneya, Dorothee Kowalski, David Juhl, Angela Rocke, Maria Shneyder, Piotr Kuta, Hartmut Clausnizer, Ralf Junker, Arne Kowalski, Aysun Tulun, Akram Al-Suraimi, Jochen Cremer, Johannes Kalbhenn, Barbara Zieger, Ulrike Nowak-Göttl*

*Corresponding author for this work

Abstract

Background: Bleeding is a common but possibly underreported side effect of Extracorporeal Membrane Oxygenation (ECMO). Impairment of primary hemostasis by acquired von Willebrand syndrome (aVWS) and platelet dysfunction as well as activation and consumption of plasmatic coagulation factors contribute to hemorrhage. The aim of the present cohort study of consecutively enrolled patients admitted to our ECMO center was to collect demographic, medical and laboratory data possibly associated with i) development of clinically relevant bleeding and/or ii) death during a 12-months follow-up. Results: Within a 3-year period 338 white patients aged 18–89 years (median: 60; male 64.5%) were enrolled. 78 of 338 patients (23%) presented with clinical relevant bleeding symptoms. The overall death rate was 74.6% within a median time of 9 days (1–229) post intervention. Logistic-regression analysis adjusted for age and gender revealed that i) the presence of blood group O versus non-O (Odds ratio (OR)/95%CI: 1.9/1.007–3.41), ECMO duration per day (1.1/1.06–1.14), veno-venous versus veno-arterial ECMO cannulation (2.33/1.2–4.5) and the overall need for blood product administered per unit (1.02/1.016–1.028) was independenly associated with bleeding in patients suffering from aVWS. ii) Older age (increase per year) at ECMO start (1.015/1.012–1.029) and an increasing amount of blood product units were significantly related with death (1.007/1.001–1.013). Patients with veno-venous versus veno-arterial cannulation survived longer (0.48/0.24–0.94). Conclusion: In the present cohort study we found a clinical relevant bleeding rate of 23% in subjects with aVWS associated with blood group O, a longer ECMO duration and veno-venous cannulation.

Original languageEnglish
Article number102526
JournalBlood Cells, Molecules, and Diseases
Volume87
Pages (from-to)102526
ISSN1079-9796
DOIs
Publication statusPublished - 01.03.2021

Funding

The study was supported by grants from the Förderverein “Schlaganfall und Thrombosen im Kindesalter e.V.”, and restricted research grants from LFB (pilot study) and Octapharma (main study). None of the aforementioned funding agencies had a role in study design, conduct, interpretation, or reporting, i.e. that the authors had no interests which might be perceived as posing a conflict or bias. We thank Hartmut Clausnizer and Christa Zeidler for data management.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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