Replacement of the Aortic Root in Patients with Marfan's Syndrome
Vincent L. Gott, M.D., Peter S. Greene, M.D., Diane E. Alejo, B.A., Duke E. Cameron, M.D., David C. Naftel, Ph.D., D. Craig Miller, M.D., A. Marc Gillinov, M.D., John C. Laschinger, M.D., and Reed E. Pyeritz, M.D., Ph.D.
Background Replacement of the aortic root with a prostheticgraft and valve in patients with Marfan's syndrome may preventpremature death from rupture of an aneurysm or aortic dissection.We reviewed the results of this surgical procedure at 10 experiencedsurgical centers.
Methods A total of 675 patients with Marfan's syndrome underwentreplacement of the aortic root. Survival and morbidity-freesurvival curves were calculated, and risk factors were determinedfrom a multivariable regression analysis.
Results The 30-day mortality rate was 1.5 percent among the455 patients who underwent elective repair, 2.6 percent amongthe 117 patients who underwent urgent repair (within 7 daysafter a surgical consultation), and 11.7 percent among the 103patients who underwent emergency repair (within 24 hours aftera surgical consultation). Of the 675 patients, 202 (30 percent)had aortic dissection involving the ascending aorta. Forty-sixpercent of the 158 adult patients with aortic dissection anda documented aortic diameter had an aneurysm with a diameterof 6.5 cm or less. There were 114 late deaths (more than 30days after surgery); dissection or rupture of the residual aorta(22 patients) and arrhythmia (21 patients) were the principalcauses of late death. The risk of death was greatest withinthe first 60 days after surgery, then rapidly decreased to aconstant level by the end of the first year.
Conclusions Elective aortic-root replacement has a low operativemortality. In contrast, emergency repair, usually for acuteaortic dissection, is associated with a much higher early mortality.Because nearly half the adult patients with aortic dissectionhad an aortic-root diameter of 6.5 cm or less at the time ofoperation, it may be prudent to undertake prophylactic repairof aortic aneurysms in patients with Marfan's syndrome whenthe diameter of the aorta is well below that size.
Source Information
From the Division of Cardiac Surgery, Johns Hopkins Hospital, Baltimore (V.L.G., P.S.G., D.E.A., D.E.C., A.M.G.); the Department of Surgery, University of Alabama, Birmingham (D.C.N.); the Department of Cardiothoracic Surgery, Stanford University Medical Center, Stanford, Calif. (D.C.M.); the Division of Cardiac Surgery, St. Joseph Hospital, Baltimore (J.C.L.); and the Department of Human Genetics, Allegheny University of the Health Sciences, Pittsburgh (R.E.P.). Other authors were Hans G. Borst, M.D., Division of Cardiothoracic Surgery, Hannover University Hospital, Hannover, Germany; Christian E.A. Cabrol, M.D., Department of Cardiothoracic Surgery, Hôpital La Pitié, Paris; Denton A. Cooley, M.D., Department of Surgery, Texas Heart Institute, Houston; Joseph S. Coselli, M.D., Department of Surgery, Methodist Hospital, Houston; Tirone E. David, M.D., Division of Cardiovascular Surgery, Toronto Hospital, Toronto; Randall B. Griepp, M.D., Department of Cardiothoracic Surgery, Mt. Sinai Hospital, New York; Nicholas T. Kouchoukos, M.D., Division of Cardiothoracic Surgery, Jewish Hospital, St. Louis; and Marko I. Turina, M.D., Department of Cardiovascular Surgery, University Hospital, Zurich, Switzerland.
Address reprint requests to Dr. Gott at the Division of Cardiac Surgery, 618 Blalock Bldg., Johns Hopkins Hospital, Baltimore, MD 21287-4618, or at vgott{at}csurg.jhmi.jhu.edu.
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