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Journal of the Korean Society of Neonatology 2003;10(1):29-38.
Published online May 1, 2003.
Comparison of Treatment Outcomes in Persistent Pulmonary Hypertension of the Newborn.
Hyun Kyung Park, Jae Woo Lim, Nu Lee Jun, Ellen Ai Rhan Kim, Ki Soo Kim, Soo Young Pi
Department of Pediatrics, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea. kskim@amc.seoul.kr
신생아 지속성 폐동맥 고혈압증의 치료 성적 변화
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Abstract
PURPOSE
To compare the efficacy of conventional strategy versus high-frequency oscillatory ventilation (HFOV) and inhaled nitric oxide (iNO) for the treatment of full term neonates with persistent pulmonary hypertension (PPHN).
METHODS
Full term infants admitted with diagnosis of PPHN to neonatal intensive care units of Asan Medical Center from a period of 1994 to 2001 were included. The major exclusion criteria included congenital anomalies and pulmonary hypoplasia caused by various etiologies. Demographic, therapeutic responses and outcomes were compared between two study phases depending upon treatment modalities used: phase 1 (January 1994-July 1997) using conventional strategy and phase II (July 1997-December 2001) using either conventional strategy or/with iNO or HFOV with iNO. RESULTS: A total of 16 patients and 32 patients were enrolled in phase I and phase II studies, respectively. The primary diagnosis for PPHN included idiopathic (n=12), hyaline membrane disease (n=16), meconium aspiration syndrome (n=11), and sepsis (n=10). Statistically significant improvements were noted in survival, oxygenation index and alveolar- arterial oxygen tension difference during phase II than phase I study period. 75% of those infants treated with iNO showed good responses. Improvements in duration of ventilator use, oxygen supplementation, hospitalization were noted during phase II study period, however, not statistically significant compared to phase I study period. The impairments in neurodevelopmental outcomes were noted in 1 and 2 patients during phase I and phase II study periods, respectively. CONCLUSION: We conclude that HFOV and iNO are more efficacious and safe rescue mode of treatment than conventional strategy for full term infants with PPHN.
Key Words: Conventional ventilation, High-Frequency Oscillatory Ventilation, Inhaled Nitric Oxide, Persistent Pulmonary Hypertension of the Newborn


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