Related Experiment Video
Updated: Jun 5, 2026

In Vitro Thrombosis Test for Ventricular Assist Devices
Published on: March 21, 2025
[Interventional lung assist membrane ventilator. Successful use despite heparin-induced thrombocytopenia type II]
J Lange1, D Knüttgen, E Stoelben
1Klinik für Viszeral-, Gefäß- und Transplantationschirurgie, Klinikum der Universität Witten/Herdecke mit Sitz in Köln, Kliniken der Stadt Köln gGmbH, Krankenhaus Merheim, Köln, Deutschland.
Abstract:
Pumpless extracorporeal carbon dioxide elimination using the interventional lung assist (iLA) membrane ventilator is a modern concept for the treatment of hypercapnia due to respiratory failure which cannot be sufficiently treated by conventional strategies. Heparin-induced thrombocytopenia type II (HIT II) is considered to be an absolute contraindication for placement of an iLA because of the system's heparin-coated diffusion membrane. The example demonstrates that iLA therapy can be continued despite occurrence of a HIT II in terms of an "off label use". In the case described, postoperative therapy using the iLA membrane ventilator was installed in a 69-year-old patient with severe ARDS after elective lung resection. Despite a confirmed HIT II detected in the course of iLA, this therapy was continued after changing systemic anticoagulation to argatroban. The platelet count increased again and the patient could be successfully weaned from the iLA membrane and finally transferred to a rehabilitation centre.
Related Concept Videos
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Venous Thrombosis III: Interprofessional Care
Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation (NIPPV)
Mechanical Ventilation II: Invasive Ventilation
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...