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Aortic stenosis caused by the felt strip used in repair for acute aortic dissection

Department of Cardiovascular Surgery, National Cardiovascular Center, 5-7-1 Fujishirodai, Suita, Osaka, Japan 565-8565

^* Corresponding author. Tel.: +81-668-33-5012; fax: +81-668-72-7486
hogino{at}hsp.ncvc.go.jp

Objective: We report a rare complication—stenosis of the proximal anastomotic site caused by an inside felt strip—in surgery for acute type A aortic dissection. Methods: Eight weeks after the emergent repair, the patient suffered from anemia and persistent high-grade fever. Computed tomography and transesophageal echocardiography revealed considerable aortic stenosis, while laboratory data showed hemolytic anemia associated with some inflammatory changes. Results: After surgical relief of the aortic stenosis, inflammatory change improved and anemia also disappeared. Conclusion: It is evident that the inner felt strip used for reinforcement of the proximal anastomosis can cause remarkable stenosis, resulting in hemolytic anemia and inflammatory changes.

Key Words: Aortic dissection; Reoperation; Stenosis; Foreign body; Complications of surgery