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Prevention of intraventricular hemorrhage in preterm infants
1Department of Neurology, New York University School of Medicine, New York, USA.
Insights
Preventing intraventricular hemorrhage (IVH) in premature infants requires multifaceted prenatal and postnatal strategies. Optimal care, including minimizing blood flow fluctuations and considering postnatal indomethacin, is crucial for reducing morbidity and mortality.
Area of Science:
- Neonatalogy
- Pediatric Neurology
- Perinatal Medicine
Background:
- Intraventricular hemorrhage (IVH) poses significant risks for premature infants, leading to severe morbidity and mortality.
- Higher incidence and severity of IVH are observed in more premature infants and early-onset cases.
- The multifactorial etiology of IVH presents distinct risk factors for early versus later onset.
Purpose of the Study:
- To review and discuss multilayered prevention strategies for intraventricular hemorrhage in premature infants.
- To highlight unresolved controversies and provide recommendations for both prenatal and postnatal interventions.
- To emphasize the need for sustained neurodevelopmental follow-up in all prevention strategies.
Main Methods:
- Review of existing literature on the etiology and prevention of IVH in preterm neonates.
- Discussion of prenatal strategies: preventing preterm birth, maternal transfer, and antenatal steroid use.
- Examination of postnatal strategies: optimal resuscitation, neonatal care to minimize cerebral blood flow fluctuations, and postnatal indomethacin use.
Main Results:
- Prevention requires a combination of prenatal and postnatal approaches.
- Key recommendations include preventing preterm delivery, maternal transfer to tertiary centers, antenatal steroids, and optimal neonatal care.
- Postnatal indomethacin is recommended for most infants, with further research needed on other strategies.
Conclusions:
- Multilayered prevention strategies are essential for reducing IVH in premature infants.
- Addressing risk factors for both early and later onset IVH is critical.
- Sustained neurodevelopmental follow-up is paramount for assessing the long-term impact of prevention strategies.
Abstract:
Prematurely born infants with intraventricular hemorrhage (IVH) suffer significant morbidity and mortality, particularly those infants with high grade hemorrhage. The more premature infants have a higher incidence, experiencing more severe IVH. Early onset IVH is also likely to be severe and to progress to a higher grade. The etiology of intraventricular hemorrhages is clearly multifactorial, with differing sets of risk factors for early onset and later occurring hemorrhage. Prevention requires multilayered strategies, both prenatal and postnatal. These strategies are discussed in detail, highlighting unresolved controversies. Certain recommendations for prevention can be made. These include efforts to prevent preterm delivery, transfer of high risk mothers to tertiary care centers and antenatal maternal steroid use. Postnatally, the importance of optimal resuscitation and neonatal care practices is stressed, particularly those which minimize cerebral blood flow fluctuation. Postnatal indomethacin use should be considered in most infants. Further investigation of other strategies is necessary, including multicenter randomized trials to further evaluate antenatal pharmacologic agents, as well as the relative efficacy of different modes of delivery. The different risk factors for early onset versus later onset IVH must be more clearly delineated. Most importantly, any strategy must include sustained neurodevelopmental followup.