Hemothorax associated with anticoagulation after placement of implantable cardioverter defibrillator: possible similarity to postinfarction Dressler's syndrome.

Massive hemothorax developed after placement of an implantable cardioverter defibrillator (ICD) in two patients who received postoperative anticoagulants. The possible relationship of this complication to polyserositis after ICD implantation is discussed as are the possible adverse sequelae of early anticoagulation after ICD implantation.