The abdominal aorta is normally smaller than the thoracic aorta.
Severe heart disease, long flow , break time of aorta and aged were the high risk factors.
严重心脏疾病 、 主动脉断流时间长、高龄患者较易出现心律失常.
All babies are born with this connection between the aorta and the pulmonary artery.
所有的孩子出生时在主动脉和肺动脉之间都有这个通道(动脉导管).
The aorta was not clamped sham operation group.