ductus

(3) ductuli epididymis with least and pilus on the epidermis and (4) circular ductus epididymidis with least cutaway.

③小管：管径最小，上皮有纤；④管：切面最少，管腔圆整。

Objective:To evaluate the effects of the anesthesia method used during the operation of Patent ductus arteriosis(PDA)through cardic catheter without thoracotomy.

评价小儿经皮导管动脉导管封堵术麻醉方法及。

Results Color Doppler echocardiography showed that the embryocardia ductus arterious flow had a bright shunt from the pulmonary to descending aorta.

24%胎存在生理性三尖瓣返流,肺动脉阻力普遍较高,胎动脉导管血流单向自肺动脉流向降主动脉,显色明亮。