Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study

Aim: Scoliosis is a common comorbidity in Rett syndrome and spinal fusion may be recommended if severe. We investigated the impact of spinal fusion on survival and risk of severe lower respiratory tract infection in Rett syndrome. Method: Data were ascertained from hospital medical records, the Aust...

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Main Authors: Downs, Jennepher, Torode, I., Wong, K., Ellaway, C., Elliott, E., Izatt, M., Askin, G., Mcphee, B., Cundy, P., Leonard, H.
Format: Journal Article
Published: 2016
Online Access:http://hdl.handle.net/20.500.11937/43563
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author Downs, Jennepher
Torode, I.
Wong, K.
Ellaway, C.
Elliott, E.
Izatt, M.
Askin, G.
Mcphee, B.
Cundy, P.
Leonard, H.
author_facet Downs, Jennepher
Torode, I.
Wong, K.
Ellaway, C.
Elliott, E.
Izatt, M.
Askin, G.
Mcphee, B.
Cundy, P.
Leonard, H.
author_sort Downs, Jennepher
building Curtin Institutional Repository
collection Online Access
description Aim: Scoliosis is a common comorbidity in Rett syndrome and spinal fusion may be recommended if severe. We investigated the impact of spinal fusion on survival and risk of severe lower respiratory tract infection in Rett syndrome. Method: Data were ascertained from hospital medical records, the Australian Rett Syndrome Database, a longitudinal and population-based registry, and from the Australian Institute of Health and Welfare National Death Index database. Cox regression and generalized estimating equation models were used to estimate the effects of spinal surgery on survival and severe respiratory infection respectively in 140 females who developed severe scoliosis (Cobb angle =45°) before adulthood. Results: After adjusting for mutation type and age of scoliosis onset, the rate of death was lower in the surgery group (hazard ratio [HR] 0.30, 95% confidence interval [CI] 0.12-0.74; p=0.009) compared to those without surgery. Rate of death was particularly reduced for those with early onset scoliosis (HR 0.17, 95% CI 0.06-0.52; p=0.002). There was some evidence to suggest that spinal fusion was associated with a reduction in risk of severe respiratory infection among those with early onset scoliosis (risk ratio 0.41, 95% CI 0.16-1.03; p=0.06). Interpretation: With appropriate cautions, spinal fusion confers an advantage to life expectancy in Rett syndrome.
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spelling curtin-20.500.11937-435632019-02-19T05:35:06Z Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study Downs, Jennepher Torode, I. Wong, K. Ellaway, C. Elliott, E. Izatt, M. Askin, G. Mcphee, B. Cundy, P. Leonard, H. Aim: Scoliosis is a common comorbidity in Rett syndrome and spinal fusion may be recommended if severe. We investigated the impact of spinal fusion on survival and risk of severe lower respiratory tract infection in Rett syndrome. Method: Data were ascertained from hospital medical records, the Australian Rett Syndrome Database, a longitudinal and population-based registry, and from the Australian Institute of Health and Welfare National Death Index database. Cox regression and generalized estimating equation models were used to estimate the effects of spinal surgery on survival and severe respiratory infection respectively in 140 females who developed severe scoliosis (Cobb angle =45°) before adulthood. Results: After adjusting for mutation type and age of scoliosis onset, the rate of death was lower in the surgery group (hazard ratio [HR] 0.30, 95% confidence interval [CI] 0.12-0.74; p=0.009) compared to those without surgery. Rate of death was particularly reduced for those with early onset scoliosis (HR 0.17, 95% CI 0.06-0.52; p=0.002). There was some evidence to suggest that spinal fusion was associated with a reduction in risk of severe respiratory infection among those with early onset scoliosis (risk ratio 0.41, 95% CI 0.16-1.03; p=0.06). Interpretation: With appropriate cautions, spinal fusion confers an advantage to life expectancy in Rett syndrome. 2016 Journal Article http://hdl.handle.net/20.500.11937/43563 10.1111/dmcn.12984 fulltext
spellingShingle Downs, Jennepher
Torode, I.
Wong, K.
Ellaway, C.
Elliott, E.
Izatt, M.
Askin, G.
Mcphee, B.
Cundy, P.
Leonard, H.
Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title_full Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title_fullStr Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title_full_unstemmed Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title_short Surgical fusion of early onset severe scoliosis increases survival in Rett syndrome: A cohort study
title_sort surgical fusion of early onset severe scoliosis increases survival in rett syndrome: a cohort study
url http://hdl.handle.net/20.500.11937/43563