SIMULTANEOUS SURGICAL TREATMENT OF TETRALOGY OF FALLOT AND CORONARY ARTERY ANEURYSM DUE TO MUCOCUTANEOUS LYMPH NODE SYNDROME IN A-4-YEAR-OLD CHILD

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Abstract
The simultaneous correction of tetralogy of Fallot and an aneurysm of the coronary artery due to mucocutaneous lymph node syndrome (MCLS) in a 4-year-old boy was successfully performed. Of the four aneurysms found on the coronary angiogram at the age of six months, the smaller three regressed spontaneously leaving slight dilatation and thickening of the arterial wall during the 4-year follow-up period. However, the largest one in the right coronary artery, which remained almost the same size, showed marked stagnation of blood in the aneurysm with the possibility of thrombosis and resultant myocardial infarction. At operation, there was a large aneurysm in the right coronary artery, 9 mm in width and 18 mm in length. The wall of the aneurysm was very thick and tightly adherent to the myocardium. The aneurysm was resected and an aorto-coronary bypass graft was fashioned from a saphenous vein taken from the patient's mother, since an autogenous vein was not available. A ventricular septal defect was closed and pulmonary stenosis was relieved without any difficulty. Postoperative cardiac catheterization and coronary angiography four weeks after the operation revealed satisfactory correction of the tetralogy of Fallot and a patent aorto-coronary vein graft. Several problems regarding surgical treatment of coronary artery aneurysm due to MCLS are discussed.

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