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Original Articles: Adult Cardiac

Operative Strategy for Acute Type A Aortic Dissection: Ascending Aortic or Hemiarch Versus Total Arch Replacement With Frozen Elephant Trunk

^a Division of Cardiovascular Surgery, Hiroshima-city Asa General Hospital, Hiroshima, Japan
^b Kajikawa Private Hospital, Hiroshima, Japan

Accepted for publication November 21, 2008.

^_* Address correspondence to Dr Uchida, Division of Cardiovascular Surgery, Hiroshima-city Asa General Hospital, 2-1-1, Kabe-minami, Asa-Kita-Ku, Hiroshima, 731-0293, Japan (Email: uchidacvs{at}yahoo.co.jp).

Background: This report compares long-term results with total arch replacement with frozen elephant trunk (FET) to ascending aortic or hemiarch replacement (AHR) for acute type A aortic dissection.

Methods: The subjects were 120 consecutive patients, including 65 who received FET and 55 who had AHR for acute type A aortic dissection from 1997 to 2008. The late results after surgery were retrospectively compared between the FET and ARH groups.

Results: Three patients in the FET group died, and 2 patients in the AHR group died. In long-term follow-up (mean, 67 months), the survival rate after 5 years was 95.3% for the FET group and 69.0% for the AHR group (p = 0.03). The event rate for the thoracic aorta after 5 years showed a significant difference between the FET and AHR groups (95.7% versus 73.0%, p = 0.01). A false lumen at the proximal descending aorta was patent in 16 patients (29%) in the AHR group, but it was thrombosed in all in the FET group.

Conclusions: In patients with acute type A aortic dissection, it is possible to perform extensive primary repair using the FET technique with relative safety. FET may reduce the necessity for further operations to manage a residual false lumen.

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				H. Jakob and K. Tsagakis Reply. Ann. Thorac. Surg., October 1, 2009; 88(4): 1388 - 1389. [Full Text] [PDF]