Increased survival and deteriorating developmental outcome in 23 to 25 week old gestation infants, 1990-4 compared with 1984-9

Emsley, H. C A and Wardle, S. P. and Sims, D. G. and Chiswick, M. L. and D'Souza, S. W. (1998) Increased survival and deteriorating developmental outcome in 23 to 25 week old gestation infants, 1990-4 compared with 1984-9. Archives of Disease in Childhood: Fetal and Neonatal Edition, 78 (2). F99-F102. ISSN 1359-2998

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Abstract

Aims - To assess whether changes in survival over time in infants of 23 to 25 weeks of gestational age were accompanied by changes in the incidence of disability in childhood during an 11 year period. Methods - Obstetric and neonatal variables having the strongest association with both survival to discharge from a regional neonatal medical unit and neurodevelopmental disability in 192 infants of 23 to 25 weeks of gestation, born in 1984 to 1994, were studied as a group and in two cohorts (1984 to 1989 n = 96 and 1990 to 1994 n = 96). The data collected included CRIB (clinical risk index for babies) scores and cranial ultrasound scan findings. The children were followed up at outpatient clinics. Results - Between 1984 and 1989 (cohort 1) and 1990 and 1994 (cohort 2) the rate of survival to discharge increased significantly from 27% to 42% and the rate of disability in survivors increased from 38% to 68% ; most of this increase was in mild disability. The proportions of survivors with cerebral palsy did not alter significantly (21% vs 18%), but more survivors with blindness due to retinopathy of prematurity (4% vs 18%), myopia (4% vs 15%) and squints (8% vs 13%) contributed to the increased rate of disability. Clinically significant cranial ultrasound findings and a high CRIB score were strongly associated with death. A high CRIB score was most strongly associated with disability. Conclusions - The rise in disability with improved survival was not due to cerebral palsy; rather the main contributors were blindness due to retinopathy, myopia, and squint. The causes of these disabilities seem to be linked to high CRIB scores. A system of regular and skilled retinal examination and access to facilities for retinal ablation should be in place in all neonatal units which undertake the care of such extremely preterm infants.

Item Type: Journal Article
Journal or Publication Title: Archives of Disease in Childhood: Fetal and Neonatal Edition
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2700
Subjects:
Departments: Faculty of Health and Medicine > Medicine
ID Code: 84799
Deposited By: ep_importer_pure
Deposited On: 21 Feb 2017 09:36
Refereed?: Yes
Published?: Published
Last Modified: 19 Feb 2020 03:41
URI: https://eprints.lancs.ac.uk/id/eprint/84799

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