small aortic root

例句：

1. 1.The doctor found that the patient had a small aortic root, which could be a cause of his heart condition.
   医生发现病人有一个小型主动脉根，这可能是他心脏病的原因。
2. 2. During surgery, the surgeon removed the small aortic root to relieve the pressure on the patient's heart.
   在手术中，外科医生切除了小型主动脉根以减轻对病人心脏的压力。
3. 3.After the operation, the patient was monitored closely for any signs of complications related to the removal of the small aortic root.
   手术后，患者被密切监测，以检查任何与移除小型主动脉根相关的并发症迹象。