| Studies on the Change of Pulmonary Artery Pressure in Early Neonatal Period. |
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Jung Ae Kim, Yung Kyun Oh, Byung Kiu Park, Hee Shang Youn, Myung Kul Yum |
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Department of Pediatrics, College of Medicine, Kyungsang National University, Jinju, Korea |
| 신생아 초기의 폐동맥압의 변화에 대한 연구* |
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김정애, 오영균, 박병규, 윤희상, 염명걸 |
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경상대학교 의과대학 소아과학교실 |
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Received: 23 February 1990 • Accepted: 24 May 1990 |
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| Abstract |
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The change of postnatal pulmonary artery pressure was studied with doppler echocardiography and
phonocardiogram in 40 normal full term neonates before 6 hours, between 6 〜 24 hours, 24~48 hours,
48-72 hours, 72 hours 〜 7 days. The results of study were as follows: Pc-To interval (sec) decreased (0.
071 ±0.002, 0.062±0.003, 0.050±0.002, 0.037±0.007, 0.027±0.003) and AT/ET ratio increased (0.
24±0.01, 0.30±0.02, 0.40±0.03, 0.40±0.04, 0.51 ±0.04) during those period, which means steady
decline of pulmonary artery pressure during 3 〜7 days of age rather than abrupt decrease within 1 day
of age and approximation of pulmonary artery pressure to normal adult values at 3〜7 days of age. |
| Key Words:
Pulmonary artery pressure, Pc -To interval, Neonatal period |
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