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Abstract:

Objective To explore the effect of crownless sinus patch in Standford type A dissection root plasty. Methods A total of 86 cases of Stanford type A aortic dissection from March 2008 to May 2018 were selected as Group A and another 66 cases with the same conditions from June 2018 to October 2020 were selected as group B. The patients of the two groups underwent Sun′s operation in our hospital. During the operation，the aortic wall and right atrial appendage were used for internal drainage at the aortic root in group A. In group B，the aortic root was repaired with non⁃coronary sinus patch，the vascular wall of aortic root was sutured with“Sandwich” method and the right valueless junction was suspended and shaped. The two groups were compared in terms of operation time，intraoperative blood loss，cardiopulmonary bypass time，intraoperative red blood cell transfusion， number of homeostasis cases after thoracotomy，total drainage volume 24 hours after operation，number of postopera⁃ tive pulmonary complications and mortality rate. The data were analyzed by SPSS10.0. Group t test and χ2 test were used for statistical analysis of measurement data and count data between groups. Results As compared with group A，the operation time and cardiopulmonary bypass time were both significantly shorter，the volume of transfused intraoperative red blood cells，the number of homeostasis cases after thoracotomy，the total drainage volume in 24 hours after operation，the amount of red blood cell transfusion，and the number of cases with pulmonary complications were significantly smaller，and the postoperative mortality was significantly lower in group B. Conclusion During Stanford type A aortic dissection，aortic root plasty with non ⁃coronary sinus patch，with its vascular wall sutured and reinforced with“Sandwich”method，is effective in reducing postoperative complications and improve the success rate of operation.

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