Abstract
Paroxysmal nocturnal hemoglobinuria has not been described in patients undergoing off-pump coronary artery bypass grafting. A 65-year-old man who underwent percutaneous coronary stenting to the proximal left anterior descending artery for unstable angina was readmitted to our hospital complaining of recurrent chest pains. A coronary angiography revealed in-stent restenosis and new lesions of the distal left anterior descending artery as well as the left circumflex artery branch. He was found to have paroxysmal nocturnal hemoglobinuria which contributes to serious surgical complications including infection, bleeding, hemolysis and acute renal failure. After pancytopenia was treated with administration of granulocyte colony stimulating factor and transfusion of the washed red blood cells preoperatively, off-pump coronary artery bypass grafting was performed. Cardiopulmonary bypass was avoided in order to reduce activation of complements. His postoperative course was uneventful. Combination of appropriate perioperative management and off-pump cardiac surgery yielded an effective result in treating this patient without major complications.
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