Open Distal Anastomosis Technique for Ascending Aortic Aneurysm Repair without Cerebral Perfusion
AbstractBackground: This study aimed to report the outcomes of patients who underwent proximal thoracic aortic aneurysm surgery with open distal anastomosis technique but without cerebral perfusion, instead under deep hypothermic circulatory arrest.
Methods: Thirty patients (21 male, 9 female) who underwent ascending aortic aneurysm repair with open distal anastomosis technique were included. The average age was 60.2 ± 11.7 years. Operations were performed under deep hypothermic circulatory arrest and the cannulation for cardiopulmonary bypass was first done over the aneurysmatic segment and then moved over the graft. Intraoperative and early postoperative mortality and morbidity outcomes were reported.
Results: Average duration of cardiopulmonary bypass and cross-clamps were 210.8 ± 43 and 154.9 ± 35.4 minutes, respectively. Average duration of total circulatory arrest was 25.2 ± 2.4 minutes. There was one hospital death (3.3%) due to chronic obstructive pulmonary disease at postoperative day 22. No neurological dysfunction was observed during the postoperative period.
Conclusion: These results demonstrate that open distal anastomosis under less than 30 minutes of deep hypothermic circulatory arrest without antegrade or retrograde cerebral perfusion and cannulation of the aneurysmatic segment is a safe and reliable procedure in patients undergoing proximal thoracic aortic aneurysm surgery.
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