The Use of Cangrelor and Heparin for Anticoagulation in a Patient Requiring Pulmonary Thromboendarterectomy Surgery with Suspected Heparin-Induced Thrombocytopenia

Journal of Cardiothoracic and Vascular Anesthesia
Scott SeiderTimothy Maus

Abstract

The management of heparin-induced thrombocytopenia (HIT) in the perioperative period for patients undergoing cardiac surgery requiring cardiopulmonary bypass (CPB) and deep hypothermic circulatory arrest (DHCA) can be a challenging clinical scenario. Once a diagnosis of HIT has been established, heparin products typically are avoided and alternative therapies for anticoagulation are started. Alternative anticoagulation strategies for CPB are limited and often have various pharmacokinetic profiles that may lead to increased perioperative bleeding. Historically the use of a GPIIb/IIIa inhibitor, such as tirofiban, followed by unfractionated heparin (UFH) is the typical alternative for surgeries requiring DHCA in patients with HIT at the authors' institution. This article presents a case in which cangrelor followed by UFH was used in a 20-year-old patient with suspected HIT and chronic thromboembolic pulmonary hypertension undergoing pulmonary thromboendarterectomy surgery requiring CPB and DHCA. Due to the frequency of significant postoperative bleeding encountered when using tirofiban and UFH, it was decided to attempt to block platelet aggregation with significantly shorter-acting cangrelor. The authors hypothesized that cangre...Continue Reading

Citations

Mar 29, 2020·Innovations : Technology and Techniques in Cardiothoracic and Vascular Surgery·David ZapataBrent Keeling
Apr 18, 2020·Anaesthesia Critical Care & Pain Medicine·Yves GruelUNKNOWN Members of the French Working Group on Perioperative Haemostasis Groupe d’intérêt en hémostase périopératoire GIHP

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