In SAD rats either 2 or 16 weeks after operation, blood pressure level remained unchanged, while BPV was significantly increased, when compared with time-matched sham-operated rats.

• 发现SAD 2周大鼠主动脉重量指数(主动脉重/主动脉长)明显增加、主动脉壁增厚，而心脏、肾脏的大体形态测定和组织病理学观察却无明显改变。