Annals of Thoracic and Cardiovascular Surgery
Online ISSN : 2186-1005
Print ISSN : 1341-1098
ISSN-L : 1341-1098
Case Reports
Aortic Valve Replacement to a Patient with High Titer of Cold Agglutinin
Rei KansakuKenji KuwakiAtsushi AmanoHirotaka InabaKeiichi TambaraTaira YamamotoNaoki Sakakibara
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2012 年 18 巻 3 号 p. 259-261

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A 60-year-old man was admitted to our hospital because of aortic stenosis with a peak pressure gradient of 61 mmHg, moderate aortic regurgitation, and a dilatation of the ascending aorta of 50 mm in diameter, which had grown 5 mm in 2 years. Because of severe aortic stenosis with a bicuspid valve and fast progression of the ascending aorta in size, replacements of both the aortic valve and the ascending aorta were planned.
He had experienced severe acute renal failure with hemolysis because of cold agglutinin one year before the operation. The hemoglobin had decreased to 4.3 g/dL during hemolytic attack. His titer of cold agglutinin was extremely high. The titer of cold agglutinin has kept above than 1:131072 at 4 degree Celsius. It once increased to 1:524288.
Both the replacement of the aortic valve and the ascending aorta under normothermic cardiopulmonary bypass using intermittent warm blood cardioplegia were completed uneventfully. He was discharged from the hospital on postoperative day 11.
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© 2012 The Editorial Committee of Annals of Thoracic and Cardiovascular Surgery

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