目的:评估Bentall术行改良人工血管吻合技术的手术过程,总结术中所需要的用物及护理配合方法,体会到术前做好患者心理护理,正确核对,合理安置体位,了解主刀医师习惯,器械用物及测量工具的准备;术中高效地配合、温度管理和感染控制是保障患者生命,减少术后并发症的关键.方法:回顾性分析自2018年1月至2019年6月我院连续收治的48例主动脉根部病变患者接受改良Bentall手术治疗的患者的临床资料,其中男39例,女9例,年龄(51.23±13.83)岁,Stanford A型主动脉夹层7例.其中38例行单纯B“,”Objective: to evaluate operation procedure of modified anastomosis technique;to summarize the necessary things during the operation and nursing cooperative methods;to understand doing well at mental nursing with patients,checks correctly,right operative posture,getting the surgeon\'\'s habit,preparing of surgical instruments and measuring tools,efficient cooperation,managing of temperature ,infection control,which is the key to guarantee patients\'\' lives and deduce complications.methods the clinical data of 48 patients with aortic root lesion treated with modified bentall operation in our hospital from January 2018 to june 2019 are retrospectively analysed.there are 39 male and 9 female,the patient are (51.23±13.83)years old,type A dissection is 7.among them,38 cases received bentall operation lonely,4 cases received biological valve,6 cases received hemiarch replacement,4 cases received mitral valve replacement.result the CPB time of patients undergoing modified anastomosis technique was (166.31±44.99)min,The aortic arrest time was(114.38±34.43)min. Mechanical ventilation time was(16.33±7.69) h. The postoperative treatment time in ICU was(3.20±1.47) days. The time of staying in hospital was(13.25±6.30)days. Secondary thoracotomy for hemostasis in 1 patient. No perioperative death. 48 cases were followed up for 1-19 months with satisfied results. Conclusion grasping the detail accurately, high quality of nursing cooperation can increase success rate,save patients` lives,reduce complication,improve patient`s live quality.