Abstract 13903: Ascending Aortic Cannulation for Acute Type A Aortic Dissection
Background: The real benefit of alternative cannulation technique for repair of acute type A aortic dissection remains controversial. We evaluated our results of ascending aortic cannulation compared with femoral cannulation in acute type A aortic dissection.
Methods and Results: From January 2000 to March 2010, 104 patients were operated on for acute type A aortic dissection. Cannulaion was accomplished in 63 patients through the ascending aorta and 41 patients through the femoral artery. Patient characteristics such as preoperative complications and shock status were almost similar between the groups. Although intraoperative parameters such as total cardiopulmonary bypass time, hypothermic circulatory arrest time, minimum bladder temperature and percentage of total arch replacement were also similar between the groups, ascending aortic cannulation significantly reduced arterial pressure on cardiopulmonary bypass circuit (152+35 vs 169+40 mmHg, p<0.05), core-cooling time (32+9 vs 39+7 min., p<0.01) and operation time (309+67 vs 356+97 min., p<0.01). There were no significant differences in postoperative 30-day mortality and in-hospital mortality between the groups. However, incidence of temporary neurological dysfunction (6.3 vs 19.5 %, p<0.05) and respiratory failure (6.3 vs 19.5 %, p<0.05) as postoperative complications were significantly lower in the aortic cannulation group, although the incidence of stroke and renal failure did disclose any differences between the groups. Moreover, ascending aortic cannulation significantly reduced the hospital stay (26+10 vs 40+31 days, p<0.01).
Conclusions: The ascending aortic cannulation for repair of acute type A aortic dissection can be advantageous to rapid cooling after the establishment of cardiopulmonary bypass. It might offer benefit on the incidence of postoperative complications and the length of hospitalization in patients with of acute type A aortic dissection.
- © 2010 by American Heart Association, Inc.