Neurometabolic changes in neonates with congenital heart defects and their relation to neurodevelopmental outcome.

BACKGROUND: Altered neurometabolite ratios in neonates undergoing cardiac surgery for congenital heart defects (CHD) may serve as a biomarker for altered brain development and neurodevelopment (ND). METHODS: We analyzed single voxel 3T PRESS H1-MRS data, acquired unilaterally in the left basal ganglia and white matter of 88 CHD neonates before and/or after neonatal cardiac surgery and 30 healthy controls. Metabolite ratios to Creatine (Cr) included glutamate (Glu/Cr), myo-Inositol (mI/Cr), glutamate and glutamine (Glx/Cr), and lactate (Lac/Cr). In addition, the developmental marker N-acetylaspartate to choline (NAA/Cho) was evaluated. All children underwent ND outcome testing using the Bayley Scales of Infant and Toddler Development Third Edition (BSID-III) at 1 year of age. RESULTS: White matter NAA/Cho ratios were lower in CHD neonates compared to healthy controls (group beta estimate: -0.26, std. error 0.07, 95% CI: -0.40 - 0.13, p value <0.001, FDR corrected p value = 0.010). We found no correlation between pre- or postoperative white matter NAA/Cho with ND outcome while controlling for socioeconomic status and CHD diagnosis. CONCLUSION: Reduced white matter NAA/Cho in CHD neonates undergoing cardiac surgery may reflect a delay in brain maturation. Further long-term MRS studies are needed to improve our understanding of the clinical impact of altered metabolites on brain development and outcome. IMPACT: NAA/Cho was reduced in the white matter, but not the gray matter of CHD neonates compared to healthy controls. No correlation to the 1-year neurodevelopmental outcome (Bayley-III) was found. While the rapid change of NAA/Cho with age might make it a sensitive marker for a delay in brain maturation, the relationship to neurodevelopmental outcome requires further investigation.

Video Recordings to Analyze Preventable Management Errors in Pediatric Resuscitation Bay.

OBJECTIVE: In treating patients of different ages and diseases in the pediatric resuscitation bay, management errors are common. This study aimed to analyze the adherence to advanced trauma life support and pediatric advanced life support guidelines and identify management errors in the pediatric resuscitation bay by using video recordings. METHODS: Video recording of all patients admitted to the pediatric resuscitation bay at University Children's Hospital Zurich during a 13-month period was performed. Treatment adherence to advanced trauma life support guidelines and pediatric advanced life support guidelines and errors per patient were identified. RESULTS: During the study period, 128 patients were recorded (65.6% with surgical, 34.4% with medical diseases). The most common causes for admission were traumatic brain injury (21.1%), multiple trauma (20.3%), and seizures (14.8%). There was a statistically significant correlation between accurate handover from emergency medical service to hospital physicians and adherence to airway, breathing, circulation, and disability sequence (correlation coefficient [CC], 0.205; P = 0.021), existence of a defined team leader and adherence to airway, breathing, circulation, and disability sequence (CC, 0.856; P < 0.001), and accurate hand over and existence of a defined team leader (CC, 0.186; P = 0.037). Unexpected errors were revealed. Cervical spine examination/stabilization was omitted in 40% of admitted surgical patients, even in 20% of patients with an injury of spine/limbs. CONCLUSIONS: Video recording is a useful tool to evaluate patient management in the pediatric resuscitation bay. Analyzing errors of missing the adherence to the guidelines helps to pay attention and focus on specific items to improve patient care.

Symptomatic Coronary Anomalies and Ischemia in Teenagers - Rare but Real.

Three cases of teenagers with anomalous aortic origin of the coronary arteries (AAOCA) are presented with typical exercise induced symptoms (chest pain, syncope or dizziness). Using multimodal imaging, diagnoses was confirmed showing interarterial and/or intramural course of the coronary artery explaining the ischemia induced symptoms. Successful surgical correction with unroofing of the AAOCA was performed in all three cases with a favorable outcome. Even though AAOCA are rare, some variants may be relevant and potentially life threatening, therefore treating physicians should be aware of correctly diagnosing and treating these individuals.