Distal Perfusion in Open Stent-Grafting

Abstract

We examined the utility of distal perfusion DP in open stent grafting OSG for the treatment of thoracic aortic aneurysm. : Fifty patients who underwent OSG were categorized into two groups the Non-DP group and the DP group based on the presence or absence of distal perfusion in OSG. There was no statistically significant difference between the two groups with regard to patient characteristics. : There was no statistically significant difference between the two groups with regard to operation time, but, cardiopulmonary bypass time 178 22 min vs. 193 18 min ; p 0.01 and aortic cross clamp time 84 23 min vs. 106 19 min ; p 0.01 were significantly longer in the DP group. Lower-body circulatory arrest time 46 11 min vs. 20 5 min ; p 0.001 was significantly longer in the Non-DP group. Postoperative paraplegia and paraparesis occurred in one case each in the Non-DP group, whereas permanent spinal cord ischemia did not occur in the DP group. Postoperative intubation time 72.6 40.1 h vs. 40.1 34.7 h ; p 0.05 was significantly longer in the Non-DP group. There were two in-hospital deaths due to stroke and respiratory failure in the Non-DP group, and one in-hospital death due to respiratory failure in the DP group. The postoperative maximum value of BUN 38.