title: [Transient periventricular echodensities (TPE) in preterm infants under 1500 gramms: an analysis of the outcome of the last 10 years].
abstract: BACKGROUND
  The aim of our study was to analyze neurodevelopmental outcome in preterm infants with TPE.
  
  
  METHODS
  46 preterm infants with a birthweight (BW) < or = 1500 g were included in the study. They all had TPE in parieto-occipital location (some combined with frontal flares). Exclusion criteria were PVL II-IV, intraventricular hemorrhage, asphyxia and isolated frontal TPE.
  
  
  METHODS
  We analyzed ultrasound scans (1992 - 2001) of patients with TPE (diameter > 1 cm, visible in both sagittal and coronal planes, duration > 7 days), and neurological follow-up visits (date of demission, corrected age of 4, 8, 12 months, and after that every 2 years until 6 years of age) regarding the neurodevelopmental outcome. We devided the patients in group 1 (duration of TPE 8 - 14 days) and group 2 (duration of TPE > 14 days) and then analyzed the groups regarding neurodevelopmental disorders and factors increasing the risk of occurrence of TPE.
  
  
  RESULTS
  From 1992 - 2001 578 children < or = 1500 g were admitted at our department. 48 patients (8,3 %) fulfilled the entry criteria, 2 of them died, so 46 were included in the study. In group 1 (10 patients) the median gestational age (GA) was 28 weeks (range 25 - 31), median BW 1075 g (range 685 - 1430), 6 children were neurologically unimpaired, one developed a motor handicap, and 3 a psychomotor retardation. In group 2 (36 patients) the median GA was 28 weeks (range 25 - 35), median BW 1034,5 g (range 540 - 1470), 24 patients were neurologically unimpaired, 7 developed a motor handicap, and 5 a psychomotor retardation. No statistical difference was found between the groups neither in neurodevelopmental outcome nor factors increasing the risk of the occurrence of TPE.
  
  
  CONCLUSIONS
  Obviously, the finding of TPE is of clinical relevance already at a duration of only 7 days regarding later neurological development.
authors.affiliation: Klinische Abteilung für Neonatologie, Universitäts-Klinik für Kinder- und Jugendheilkunde, Graz, Osterreich.
authors.forename: C
authors.initials: C
authors.lastname: Kreuzer
authors.forename: B
authors.initials: B
authors.lastname: Urlesberger
authors.forename: U
authors.initials: U
authors.lastname: Maurer
authors.forename: W
authors.initials: W
authors.lastname: Müller
mesh_terms: D000367:Age Factors; D002552:Cerebral Ventricles / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D003627:Data Interpretation, Statistical; D005500:Follow-Up Studies; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D019102:Infant, Very Low Birth Weight; D007969:Leukomalacia, Periventricular / Q000000981:diagnostic imaging; D009460:Neurologic Examination; D011596:Psychomotor Disorders / Q000175:diagnosis / Q000209:etiology; D013997:Time Factors; D014463:Ultrasonography