title: Cerebral haemorrhage in preterm neonates: does cerebral regional oxygen saturation during the immediate transition matter?
abstract: OBJECTIVE
  To investigate the occurrence of peri/intraventricular haemorrhage (P/IVH) in preterm infants and its potential association with cerebral regional oxygen saturation (crSO2) during the immediate transition.
  
  
  METHODS
  In this two-centre prospective observational cohort study, crSO2 was measured with near-infrared spectroscopy in preterm infants (<32 weeks of gestational age) during the immediate neonatal transition (15 min). In addition, arterial oxygen saturation (SpO2) and heart rate (HR) were monitored with pulse oximetry. Cranial ultrasound scans were performed on day 4, day 7 and day 14 after birth and before discharge. Neonates with IVH of any grade (IVH group) were matched to the neonates without IVH (Non-IVH group) on gestational age (±1 week) and birth weight (±100 g). The duration and magnitude of deviation from the 10th centile in crSO2 during immediate transition was analysed and expressed in %minutes.
  
  
  RESULTS
  IVH was found in 12 of the included neonates, who were matched to 12 neonates without IVH. There was no difference in SpO2 and HR between these two groups. The duration and magnitude of centiles-deviation of crSO2 was significantly pronounced in the IVH group compared with the Non-IVH group (1870%min vs 456%min).
  
  
  CONCLUSIONS
  The neonates of the IVH group showed significantly lower crSO2 values during the immediate transition, although there was no difference concerning SpO2 and HR. The additional monitoring of crSO2 during the immediate transition could reveal neonates with higher risk of developing an IVH later in the course.
authors.affiliation: Division of Neonatology, Department of Paediatrics, Medical University of Graz, Graz, Austria Research Unit for Neonatal Micro- and Macrocirculation, Department of Paediatrics, Medical University of Graz, Graz, Austria.
authors.forename: Nariae
authors.initials: N
authors.lastname: Baik
authors.affiliation: Division of Neonatology, Department of Paediatrics, Medical University of Graz, Graz, Austria Research Unit for Neonatal Micro- and Macrocirculation, Department of Paediatrics, Medical University of Graz, Graz, Austria.
authors.forename: Berndt
authors.initials: B
authors.lastname: Urlesberger
authors.affiliation: Division of Neonatology, Department of Paediatrics, Medical University of Graz, Graz, Austria Research Unit for Neonatal Micro- and Macrocirculation, Department of Paediatrics, Medical University of Graz, Graz, Austria.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Schwaberger
authors.affiliation: Division of Neonatology, Department of Paediatrics, Medical University of Graz, Graz, Austria Department of Pediatrics, University of Alberta, Edmonton, Canada Centre for the Studies of Asphyxia and Resuscitation, Royal Alexandra Hospital, Edmonton, Canada.
authors.forename: Georg M
authors.initials: GM
authors.lastname: Schmölzer
authors.affiliation: Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria.
authors.forename: Alexander
authors.initials: A
authors.lastname: Avian
authors.affiliation: Division of Neonatology, Department of Paediatrics, Medical University of Graz, Graz, Austria Research Unit for Neonatal Micro- and Macrocirculation, Department of Paediatrics, Medical University of Graz, Graz, Austria Department of Pediatrics, University of Alberta, Edmonton, Canada Centre for the Studies of Asphyxia and Resuscitation, Royal Alexandra Hospital, Edmonton, Canada.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Pichler
mesh_terms: D001921:Brain / Q000378:metabolism*; D002543:Cerebral Hemorrhage / Q000378:metabolism*; D002560:Cerebrovascular Circulation; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000378:metabolism*; D008991:Monitoring, Physiologic / Q000379:methods; D010092:Oximetry; D010100:Oxygen / Q000097:blood*; D010101:Oxygen Consumption; D011446:Prospective Studies; D019265:Spectroscopy, Near-Infrared
chemical_list: D010100:Oxygen
keywords: Neonatology; brain injury; preterm; regional cerebral oxygenation