title: Blood flow parameters in the arteries of the eye in premature children.
abstract: OBJECTIVE
  of the study was to evaluate blood flow in the arteries of the eye in preterm neonates.
  
  
  METHODS
  Color Doppler imaging (CDI) of ophthalmic artery, central retinal artery and posterior ciliary arteries was performed in 36 preterm infants and 19 full-term infants. Maximal systolic velocity, end-diastolic velocity, resistance index--RI and pulsatility index--PI were assessed for the studied vessels.
  
  
  RESULTS
  There were no significant differences in ophthalmic artery blood flow between preterm and normal newborns. End-diastolic velocity in central retinal artery and posterior ciliary arteries in preterm infants was significantly lower and resistent index and pulsatility index was higher. The Doppler color ultrasonography is a non-invasive technique which can be useful for the estimation of the hemodynamic parameters in the arteries of the eye in the prematures.
  
  
  CONCLUSIONS
  The recorded changes in the ultrasound measurements of the blood flow in the eye arteries in premature children comparing to the normal newborns, can be the evidence for the immaturity of the vessel system in the preterm born neonates.
authors.affiliation: Department of Paediatric Ophthalmology, Institute of Paediatrics, Medical University of Lódź, University Hospital No 4 in Lódź.
authors.forename: Anna
authors.initials: A
authors.lastname: Niwald
authors.forename: Mirosława
authors.initials: M
authors.lastname: Grałek
authors.forename: Beata
authors.initials: B
authors.lastname: Orawiec
mesh_terms: D001783:Blood Flow Velocity; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005123:Eye / Q000098:blood supply*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000503:physiopathology*; D008297:Male; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D012039:Regional Blood Flow; D012161:Retinal Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D018615:Ultrasonography, Doppler, Color