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  • Title: The whole spectrum of cystic periventricular leukomalacia of the preterm infant: results from a large consecutive case series.
    Author: Resch B, Resch E, Maurer-Fellbaum U, Pichler-Stachl E, Riccabona M, Hofer N, Urlesberger B.
    Journal: Childs Nerv Syst; 2015 Sep; 31(9):1527-32. PubMed ID: 26099229.
    Abstract:
    PURPOSE: The purpose of this study is to describe features of cystic periventricular leukomalacia (PVL) in a large consecutive cohort study including long-term neurodevelopmental follow-up. METHODS: We performed a retrospective single-centre cohort study including all preterm infants ≤35 weeks of gestational age with PVL diagnosed by ultrasound scans (US) from a tertiary care university hospital between 1988 and 2012. RESULTS: The majority of 160 consecutively diagnosed cases had a gestational age between 28 and 32 weeks (60.6%), and male sex was predominant (60.6%). The most common associated clinical findings included respiratory distress syndrome, preterm premature rupture of the membranes, and chorioamnionitis (57.5, 49.4, and 39.4%, respectively). Infants presented with apnoeas in 66.3 and neonatal seizures in 23.1%. Any kind of respiratory support was present in 75.0%. Associated low-grade intraventricular haemorrhage was evident in 33.1, high-grade haemorrhage in 9.4%. Cysts were located on both hemispheres in 75% and PVL grades 3 and 4 were predominant (75.6%). Neurodevelopmental follow-up of 146 cases at a median age of 72 months revealed normal development in 11.0, mental retardation in 50.0, and cerebral palsy in 83.6%. Visual impairment was diagnosed in 21.9% and hearing impairment in one case. A quarter of cases (27.4%) developed seizure disorders. Outcome data were significantly better in unilateral compared to bilateral PVL. CONCLUSIONS: Long-term neurodevelopmental outcome of bilateral PVL always was adverse and different from unilateral PVL. The latter might be negatively influenced by associated intra- and periventricular haemorrhages.
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