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Ann Thorac Surg 2005;80:1688-1692
© 2005 The Society of Thoracic Surgeons

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Original article: Cardiovascular

No-Clamp Technique for Valve Repair or Replacement in Patients With a Porcelain Aorta

Department of Cardiothoracic Surgery, Weill Medical College of Cornell University, New York, New York

Accepted for publication April 25, 2005.

^_* Address correspondence to Dr Girardi, Department of Cardiothoracic Surgery, Weill Medical College of Cornell University, 525 East 68th St, M-424, New York, NY 10021 (Email: lngirard{at}med.cornell.edu).

BACKGROUND: Patients requiring valvular heart surgery may have circumferential calcification of the ascending aorta. A variety of creative procedures have been described for managing this "porcelain aorta." We describe a technique based on replacement of the ascending aorta and proximal arch under profound hypothermic circulatory arrest, followed by the valve procedure.

METHODS: Twenty-five consecutive patients with a porcelain aorta were referred for heart valve surgery. In every case the aorta was replaced under circulatory arrest before the valve procedure. Postoperative morbidity, mortality, and univariate risk factors for death were calculated. Fisher's exact test defined significant perioperative variables with a p value less than 0.05.

RESULTS: Of 25 patients, 23 (92%) survived the surgery to hospital discharge. One patient had a stroke (4%) and 2 patients (8%) required reexploration for bleeding. Risk factors for perioperative death by univariate analysis included age more than 78 years (p < 0.009), cardiopulmonary bypass time longer than 200 minutes (p < 0.0001), reexploration for bleeding (p < 0.02), need for intra-aortic balloon pump support (p < 0.001), and postoperative gastrointestinal complications (p < 0.001).

CONCLUSIONS: Valve replacement or repair in the patient with a porcelain aorta can be safely accomplished with a technique based on aortic replacement under circulatory arrest. Elderly patients requiring extensive procedures and prolonged periods on bypass have a substantially increased risk for postoperative complications and death.

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