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KMID : 1130320090520040429
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Korean Journal of Pediatrics
2009 Volume.52 No. 4 p.429 ~ p.434
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Clinical findings of severe amniotic fluid aspiration pneumonia and effects of surfactant replacement therapy
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Park Sang-Woo
Kim Chun-Soo
Lee Sang-Lak
Kwon Tae-Chan
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Abstract
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Purpose: Severe aspiration of the amniotic fluid is known to cause fatal respiratory distress in neonates. We conducted this study to investigate the clinical findings of severe amniotic fluid aspiration pneumonia (AFAP) in neonates and the effect of pulmonary surfactant replacement therapy (SRT).
Methods: Retrospective analysis of medical records was conducted on 28 patients who received ventilator care due to severe AFAP in a neonatal intensive care unit over a 7-year period (2000-2006). Patients whose amniotic fluid was contaminated with meconium were excluded.
Results: A large number of cases were term infants (82.1%) and infants born by caesarean section (85.7%), and the 1- and 5-min Apgar scores of these patients were 6.5±1.2 and 7.5±1.3, respectively. Soon after birth, the amount of amniotic fluid sucked out from airway below the vocal cord was 16.0±10.1 mL. All patients received SRT with a modified bovine-derived surfactant (120 mg/kg/dose), and one dose was administered in most cases (75%). Compared with pre-SRT, the oxygenation index (8.0±9.6 vs. 18.9±7.3) according to ventilator care was a significant improvement at 12 h after SRT (P<0.001). Furthermore, most cases showed radiological improvement for aeration at 12 h post-treatment. Many cases (46.4%) had cardiorespiratory complications, but their final outcomes were excellent (survival rate, 96.4%).
Conclusions: AFAP may be an important cause of serious respiratory distress in near-term and term infants, and SRT seems to be an effective adjuvant therapy in mechanically ventilated neonates with severe AFAP.
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KEYWORD
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Amniotic Fluid, Aspiration Pneumonia, Pulmonary Surfactant
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