Abstract:Arterial catheter is physiological flow channel between pulmonary artery and descending aorta in fetal circulation. Most right heart blood flow through artery catheter into descending aorta during embryo period. Most term neonates are usually stopped after fetal delivery. Functional
closure occurs in 48 h after birth, while 88% should be closed completely at 8 weeks after birth. There was no significant difference between PDA occlusion technique guided by transthoracic echocardiography and conventional funnel… Show more
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