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Published on: November 20, 2015
Prophylactic intravenous indomethacin for preventing mortality and morbidity in preterm infants
Peter W Fowlie1, Peter G Davis, William McGuire
1Women & Child Health, Ninewells Hospital and Medical School, Dundee, Scotland, UK, DD1 9SY.
Insights
Prophylactic indomethacin reduces symptomatic patent ductus arteriosus (PDA) and intraventricular hemorrhage in preterm infants. However, this treatment does not impact mortality or long-term neurodevelopmental outcomes.
Area of Science:
- Neonatal medicine
- Pharmacology
- Clinical trials
Background:
- Persistent patent ductus arteriosus (PDA) is a common complication in preterm infants, linked to increased mortality and morbidity.
- Indomethacin, a prostaglandin synthetase inhibitor, can close PDA but carries potential side effects.
- The prophylactic use of indomethacin in preterm infants warrants careful evaluation due to potential risks.
Purpose of the Study:
- To assess the efficacy and safety of prophylactic indomethacin administration in preterm infants.
- To determine the impact of prophylactic indomethacin on PDA-related outcomes and overall mortality.
- To evaluate the effect of prophylactic indomethacin on neurodevelopmental outcomes in preterm infants.
Main Methods:
- A systematic review and meta-analysis of randomized and quasi-randomized controlled trials.
- Searches conducted across major databases including CENTRAL, MEDLINE, EMBASE, and CINAHL.
- Nineteen trials involving 2872 preterm infants were analyzed for outcomes.
Main Results:
- Prophylactic indomethacin significantly reduced the incidence of symptomatic PDA and the need for surgical ligation.
- A significant decrease in severe intraventricular hemorrhage was observed in infants receiving prophylactic indomethacin.
- No significant effect was found on mortality or a composite of death or severe neurodevelopmental disability.
Conclusions:
- Prophylactic indomethacin offers short-term benefits by reducing PDA and severe intraventricular hemorrhage in preterm infants.
- Current evidence does not support a reduction in mortality or improvement in neurodevelopmental outcomes with prophylactic indomethacin.
- Further research may be needed to balance the short-term benefits against potential long-term risks.
Background:
Persistent patent ductus arteriosus (PDA) is associated with mortality and morbidity in preterm infants. Prostaglandin synthetase inhibitors such as indomethacin promote PDA closure but also have potential side effects. The effect of the prophylactic use of indomethacin, where infants who may not have gone on to develop a symptomatic PDA would be exposed to indomethacin, warrants particular scrutiny.
Objectives:
To determine the effect of prophylactic indomethacin on mortality and morbidity in preterm infants.
Search Strategy:
The standard search strategy of the Cochrane Neonatal Review Group was used. This included searches of the Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library, Issue 5, 2010), MEDLINE, EMBASE and CINAHL (until April 2010), conference proceedings, and previous reviews.
Selection Criteria:
Randomised or quasi-randomised controlled trials that compared prophylactic indomethacin versus placebo or no drug in preterm infants.
Data Collection And Analysis:
The standard methods of the Cochrane Neonatal Review Group were used, with separate evaluation of trial quality and data extraction by two review authors.
Main Results:
Nineteen eligible trials in which 2872 infants participated were identified. Most participants were very low birth weight, but the largest single trial restricted participation to extremely low birth weight infants (N = 1202). The trials were generally of good quality.The incidence of symptomatic PDA [typical relative risk (RR) 0.44, 95% confidence interval (CI) 0.38 to 0.50] and PDA surgical ligation (typical RR 0.51, 95% CI 0.37,0.71) was significantly lower in treated infants. Prophylactic indomethacin also significantly reduced the incidence of severe intraventricular haemorrhage (typical RR 0.66, 95% CI 0.53 to 0.82). Meta-analyses found no evidence of an effect on mortality (typical RR 0.96, 95% CI 0.81 to 1.12) or on a composite of death or severe neurodevelopmental disability assessed at 18 to 36 months old (typical RR 1.02, 95% CI 0.90, 1.15).
Authors' Conclusions:
Prophylactic indomethacin has short-term benefits for preterm infants including a reduction in the incidence of symptomatic PDA, PDA surgical ligation, and severe intraventricular haemorrhage. However, there is no evidence of effect on mortality or neurodevelopment.
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