Short-term outcomes after perinatal hypoxic ischemic encephalopathy: a report from the Children’s Hospitals Neonatal Consortium HIE focus group

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Abstract

To characterize infants affected with perinatal hypoxic ischemic encephalopathy (HIE) who were referred to regional neonatal intensive care units (NICUs) and their related short-term outcomes.

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Most cited references 19

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Hypertensive disease of pregnancy and maternal mortality.

Elaine Lo, J P Mission, Aaron B Caughey (2013)

The incidence of hypertensive disorders in pregnancy is increasing and is associated with maternal mortality worldwide. This review provides the obstetrician with an update of the current issues concerning hypertension and maternal mortality. Preeclampsia affects about 3% of pregnancies, and all other hypertensive disorders complicate approximately 5-10% of pregnancies in the United States. In industrialized countries, rates of preeclampsia, gestational hypertension, and chronic hypertension have increased as rates of eclampsia have decreased following widespread antenatal care and magnesium sulfate use. Increased maternal mortality is associated with eclampsia, hemolysis, elevated liver enzymes, and low platelet count syndrome, hepatic or central nervous system hemorrhage, and vascular insult to the cardiopulmonary or renal system. Diagnosis and acute management of severe hypertension is central to reducing maternal mortality. African-American women have a higher risk of mortality from hypertensive disorders of pregnancy compared with Hispanic, American Indian/Alaska Native, Asian/Pacific Islander, and Caucasian women. Hypertensive disorders in pregnancy are a leading cause of maternal mortality worldwide. The incidence of hypertension in pregnancy continues to increase. Currently, we are unable to determine which patient will develop superimposed preeclampsia or identify subsets of preeclampsia syndrome. Opportunities for research in this area exist to better define treatment aimed at improving maternal outcomes.

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Levels of neonatal care.

, Ann R. Stark (2004)

The concept of designations for hospital facilities that care for newborn infants according to the level of complexity of care provided was first proposed in 1976. Subsequent diversity in the definitions and application of levels of care has complicated facility-based evaluation of clinical outcomes, resource allocation and utilization, and service delivery. We review data supporting the need for uniform nationally applicable definitions and the clinical basis for a proposed classification based on complexity of care. Facilities that provide hospital care for newborn infants should be classified on the basis of functional capabilities, and these facilities should be organized within a regionalized system of perinatal care.

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Brain injury following trial of hypothermia for neonatal hypoxic-ischaemic encephalopathy.

Ronnie Guillet, Jon E Tyson, N Goldberg … (2012)

The objective of our study was to examine the relationship between brain injury and outcome following neonatal hypoxic-ischaemic encephalopathy treated with hypothermia. Neonatal MRI scans were evaluated in the National Institute of Child Health and Human Development (NICHD) randomised controlled trial of whole-body hypothermia and each infant was categorised based upon the pattern of brain injury on the MRI findings. Brain injury patterns were assessed as a marker of death or disability at 18-22 months of age. Scans were obtained on 136 of 208 trial participants (65%); 73 in the hypothermia and 63 in the control group. Normal scans were noted in 38 of 73 infants (52%) in the hypothermia group and 22 of 63 infants (35%) in the control group. Infants in the hypothermia group had fewer areas of infarction (12%) compared to infants in the control group (22%). Fifty-one of the 136 infants died or had moderate or severe disability at 18 months. The brain injury pattern correlated with outcome of death or disability and with disability among survivors. Each point increase in the severity of the pattern of brain injury was independently associated with a twofold increase in the odds of death or disability. Fewer areas of infarction and a trend towards more normal scans were noted in brain MRI following whole-body hypothermia. Presence of the NICHD pattern of brain injury is a marker of death or moderate or severe disability at 18-22 months following hypothermia for neonatal encephalopathy.