Neuromonitoring in neonatal critical care part II: extremely premature infants and critically ill neonates.

Neonatal intensive care has expanded from cardiorespiratory care to a holistic approach emphasizing brain health. To best understand and monitor brain function and physiology in the neonatal intensive care unit (NICU), the most commonly used tools are amplitude-integrated EEG, full multichannel continuous EEG, and near-infrared spectroscopy. Each of these modalities has unique characteristics and functions. While some of these tools have been the subject of expert consensus statements or guidelines, there is no overarching agreement on the optimal approach to neuromonitoring in the NICU. This work reviews current evidence to assist decision making for the best utilization of these neuromonitoring tools to promote neuroprotective care in extremely premature infants and in critically ill neonates. Neuromonitoring approaches in neonatal encephalopathy and neonates with possible seizures are discussed separately in the companion paper. IMPACT: For extremely premature infants, NIRS monitoring has a potential role in individualized brain-oriented care, and selective use of aEEG and cEEG can assist in seizure detection and prognostication. For critically ill neonates, NIRS can monitor cerebral perfusion, oxygen delivery, and extraction associated with disease processes as well as respiratory and hypodynamic management. Selective use of aEEG and cEEG is important in those with a high risk of seizures and brain injury. Continuous multimodal monitoring as well as monitoring of sleep, sleep-wake cycling, and autonomic nervous system have a promising role in neonatal neurocritical care.

Integrative Medicine in Child Neurology: What Do Physicians Know and What Do They Want to Learn?

Pediatric neurology patients frequently use integrative medicine; however, providers may feel uncomfortable or unfamiliar with these therapies. Child neurologist attitudes toward integrative medicine and educational needs in integrative medicine have not been assessed. A national, anonymous survey was distributed to Child Neurology residents (n=294) and program directors (n=71) to assess attitudes toward specific integrative medicine modalities, practices in discussing integrative medicine with patients, and perceived need for a curriculum on integrative medicine; 61 (17%) partially and 53 (15%) fully completed the survey. Comparative analyses applied chi-square and independent t tests. Qualitative content analysis was performed on free text responses. Most providers surveyed consider mind and body practices safe (93% of respondents) and effective (84%), but have concerns about the safety of chiropractic manipulation (56% felt this was harmful), and the efficacy of homeopathy (none considered this effective). Few inquire about patient integrative medicine use regularly. Child Neurology residents are interested in further education on this topic.

White matter and cortical injury in hypoxic-ischemic encephalopathy: antecedent factors and 2-year outcome.

OBJECTIVE: To examine the spectrum of isolated white matter (WM)/cortical injury and its relation to outcomes in infants with hypoxic-ischemic encephalopathy (HIE) and normal appearing basal ganglia and thalami. STUDY DESIGN: From 1992-2007, 84 term infants with HIE and normal basal ganglia and thalami on neonatal magnetic resonance imaging were studied; WM/cortical lesions were classified by site and severity. Neurodevelopmental outcomes and head growth were documented at a median age of 2 years. RESULTS: The WM was normal or mildly abnormal in 33.5%, moderate in 40.5%, and severely abnormal in 26% of infants. Cortical involvement was not seen or was only mild in 75.5%, moderate in 13%, and severe in 12% of infants. WM and cortical injury severity were highly correlated (Spearman ρ = 0.74; P < .001). Infants with severe WM injury had more severe neonatal courses and a higher incidence of hypoglycemia. No infant died. Five infants (6%) developed cerebral palsy but all could walk independently. Cognitive, visual, language, behavioral, and seizure problems were highly prevalent and correlated significantly with the severity of WM injury and poor postnatal head growth. CONCLUSION: Infants with HIE and selective WM/cortical injury have a low prevalence of cerebral palsy but have a wide range of other problems, which occur more often with severe WM/cortical lesions.

Feeding and communication impairments in infants with central grey matter lesions following perinatal hypoxic-ischaemic injury.

BACKGROUND: Basal ganglia and thalamic (BGT) injury is common after acute perinatal hypoxia-ischaemia. Cerebral palsy is the most obvious consequence of BGT injury affecting 70-75% of survivors and is predictable from neonatal magnetic resonance imaging (MRI). However there is no equivalent predictive data for other specific outcomes. Feeding and communication impairments are also common in children following hypoxic-ischaemic encephalopathy (HIE) and BGT injury. AIMS: To describe, in infants with HIE and BGT injury, the prevalence of feeding and communication impairments; and to evaluate the accuracy of early MRI for predicting these outcomes. METHODS: 175 term infants with HIE and BGT injury were studied. Brain lesions were classified by site and severity from the MRI scans. Motor, feeding and communication impairments were documented at 2 years. RESULTS: Feeding and communication impairments occurred in 65% and 82% of 126 survivors respectively and related strongly to the severity of motor impairment. Forty-one children had a gastrostomy or long-term nasogastric tube. Injury severity in all brain regions was significantly associated with feeding and communication impairment on univariate analysis. On logistic regression analysis BGT (OR 10.9) and mesencephalic lesions (OR 3.7) were independently associated with feeding impairment; BGT (OR 10.5) and pontine lesions (OR 3.8) were associated with gastrostomy; the severity of BGT lesions (OR 20.1) was related to the severity of communication impairment. CONCLUSIONS: Feeding and communication impairment are very common in children with BGT and brainstem injury of neonatal origin and can be well predicted from early MRI scans.