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Original Article
Effects of Patent Ductus Arteriosus on Right Ventricle in Premature Infants : by M-mode and Doppler Echocardiography
Eun Jeung Kim, Eun Sil Lee, Young Hwan Lee, Son Moon Shin, Jeong Ok Hah
Clin Exp Pediatr. 1998;41(6):734-740.   Published online June 15, 1998
Purpose : Patent ductus arteriosus, derived left to right shunt flows, elevate the pulmonary artery pressure in infants and children and may alter right ventricular afterload thereby right ventricular function. Therefore, we examined the effects of patent ductus arteriosus on the right ventricular systolic time interval in premature infants by non-invasive Doppler echocardiography. Methods : Tweleve premature infants with patent ductus arteriosus were studied...


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