Effectiveness and safety of intravenous iloprost for severe persistent pulmonary hypertension of the newborn |
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Authors: | Waricha Janjindamai Anucha Thatrimontrichai Gunlawadee Maneenil Prasin Chanvitan Supaporn Dissaneevate |
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Affiliation: | 1. Division of Neonatology, Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand 2. Division of Neonatology, Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, 15 Kanjanavanit Road, Hat Yai, Songkhla, Thailand, 90110
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Abstract: | Objective The aims of this study were to determine the effectiveness (oxygenation), safety (hemodynamic status) and short term outcomes of intravenous iloprost (IVI) administration as a rescue therapy in severe persistent pulmonary hypertension of the newborn (PPHN). Design Retrospective medical records review. Setting Tertiary neonatal intensive care unit at Songklanagarind Hospital, Songkhla Province, Hat Yai, Thailand. Participants Newborns who received IVI as an adjunctive therapy for treatment of severe PPHN, as defined by an oxygen index (OI) of >20 and without response to conventional therapies. Main Outcome Measures The change of OI and alveolar-arterial oxygen difference before and after commencement of IVI. Results 33 neonates with severe PPHN at a median gestation of 39 weeks and a baseline OI of 40 (range, 21–101) received IVI. The median OI and alveolar-arterial oxygen difference had a statistically significant decrease after 2 hours of treatment and continued to decline thereafter (P<0.05). All infants received one or more inotropic medications and volume expanders to provide blood pressure support with no statistically significant difference of blood pressure and heart rate before and after IVI treatment. The mortality rate was 15.2%, all of them had initially severe hypoxemia with a median OI of 53.6. Conclusions IVI may be effective in improving oxygenation and should be considered as a rescue therapy for infants with severe PPHN, especially in a limited resource environment with no inhaled nitric oxide available. Systemic hypotension may be a cause for concern. |
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