A case of isolated acute DeBakey II redissection occurring in a postoperative survivor who underwent an arch replacement for acute DeBakey IIIb dissection.

A case of isolated acute DeBakey II redissection which occurred in a postoperative survivor who underwent an arch replacement for acute DeBakey IIIb dissection is reported. The operative findings revealed that there was an intimal tear above the left coronary cusp, that there was a false lumen in the native ascending aorta, and that a residual false lumen caused by the initial operation had not been detected. Redissection caused mainly by the operative procedure, such as the failure to include the site of the intimal tear in the original repair and the formation of a new dissection as a result of anastomotic failure, is frequently seen. However, isolated redissection is a rare condition. In this paper we discuss classification, diagnosis and treatment of redissection.