Regression of intracardiac heparin-induced thrombosis after aortic root surgery.

Heparin-induced thrombocytopenia and thrombosis syndrome (type II) is associated with thromboembolic complications and a mortality rate up to 30%. We describe a patient who developed intracardiac and aortic Dacron prosthesis heparin-induced thrombosis after aortic root conservative surgery. Successive transoesophageal echocardiographies demonstrated a progressive regression of intracardiac thrombosis with oral anticoagulation by warfarin and antiplatelet therapy combining aspirin and clopidogrel.