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Heparin-induced thrombocytopenia: a case report
H Van Damme1, P Damas, J L David
1Department of Thoracic and Cardiovascular Surgery, University Hospital Sart-Tilman, Liège, Belgium.
Angiology
|December 1, 1990
Summary
This case study details a patient with heparin-induced thrombocytopenia who experienced a massive pulmonary embolism despite anticoagulation. Management involved pulmonary thrombectomy and platelet aggregation inhibitors during cardiopulmonary bypass.
Area of Science:
- Cardiology
- Hematology
- Immunology
Background:
- Heparin-induced thrombocytopenia (HIT) is a rare but serious immunoallergic complication of heparin therapy.
- HIT can lead to severe thromboembolic events, including pulmonary embolism, even during anticoagulation.
Observation:
- A patient with HIT developed a massive pulmonary embolism despite receiving heparin anticoagulation.
- Pulmonary thrombectomy was performed under cardiopulmonary bypass.
Findings:
- Platelet clumping during cardiopulmonary bypass was limited using aggregation inhibitors.
- This case highlights the challenges in managing HIT with ongoing heparin exposure.
Implications:
- This report contributes to understanding HIT's rare immunoallergic complications.
- Optimal management strategies for unavoidable heparin reexposure in HIT patients are discussed.