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Ascending Aorta or Arch Surgery: Is Previous Cardiac Surgery a Risk Factor?

Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom

For reprint information contact: Alan J Bryan, FRCS Tel: 44 11 7928 5151 Fax: 44 11 7928 5192 Email: Alan.Bryan{at}ubht.swest.nhs.uk, Department of Cardio-thoracic Surgery, Bristol Royal Infirmary, Bristol BS2 8HW, United Kingdom.

Surgery on the ascending aorta ± arch is a challenge. The risks involved in such operations after previous cardiac surgery were assessed in elective and emergency settings in a single institution. Over a 10-year period, 29 patients underwent replacement of the ascending aorta ± arch following previous cardiac surgery. In 12 patients (41.4%), the procedure was carried out on an emergency basis. Thirteen had previous replacement of the ascending aorta and 16 had previous valve replacement with or without coronary artery bypass; 4 patients were undergoing a 3^rd cardiac operation. Concomitant procedures included coronary artery bypass in 2, arch replacement in 4, and descending aortic replacement in one. The overall in-hospital mortality was 13.8% (4/29) vs. 12.4% (33/267) in primary procedures. Mortality in elective repeat surgery was 5.9% (1/17) vs. 25% (3/12) in emergency re-operations. The incidences of permanent stroke (3.4%) and renal failure (3.4%) were similar to first-time operations. Elective re-operation for ascending aorta ± arch repair can be accomplished with acceptable mortality and morbidity. Outcomes in emergency cases carry a higher early mortality but still conform to contemporary expectations and are similar to emergency first-time aortic surgery.

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