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SEPN1-related myopathies: clinical course in a large cohort of patients.

Scoto, M and Cirak, S and Mein, R and Feng, L and Manzur, A Y and Robb, S and Childs, A-M and Quinlivan, R M and Roper, H P and Jones, D H and Longman, C and Chow, G and Pane, M and Main, M and Hanna, M G and Bushby, K and Sewry, C and Abbs, S and Mercuri, E and Muntoni, F (2011) SEPN1-related myopathies: clinical course in a large cohort of patients. Neurology, 76 (24). pp. 2073-8. ISSN 1526-632X.

Full text not available from this repository.
Official URL: http://www.neurology.org/content/76/24/2073.long

Abstract

OBJECTIVE

To assess the clinical course and genotype-phenotype correlations in patients with selenoprotein-related myopathy (SEPN1-RM) due to selenoprotein N1 gene (SEPN1) mutations for a retrospective cross-sectional study.

METHODS

Forty-one patients aged 1-60 years were included. Clinical data including scoliosis, respiratory function, and growth measurements were collected by case note review.

RESULTS

Mean age at onset was 2.7 years, ranging from birth to the second decade of life. All but 2 remained independently ambulant: one lost ambulation at age 5 years and another in his late 50s. The mean age of starting nocturnal noninvasive ventilation (NIV) was 13.9 years. One child required full-time NIV at the age of 1 year while in 2 cases NIV was started at 33 years. Two patients died from respiratory failure at the age of 10 and 22 years, respectively. The mean age at scoliosis onset was 10 years, in most cases preceded by rigidity of the spine. Fourteen patients had successful spinal surgery (mean age 13.9 years). Twenty-one were underweight; however, overt feeding difficulties were not a feature.

CONCLUSIONS

This study describes the largest population affected by SEPN1-RM reported so far. Our findings show that the spectrum of severity is wider than previously reported. Respiratory insufficiency generally develops by 14 years but may occur as early as in infancy or not until the fourth decade. Motor abilities remain essentially static over time even in patients with early presentation. Most adult patients remain ambulant and fully employed.

Item Type: Article
Subjects: WL Nervous system. Neurology
Divisions: Womens and Childrens > Paediatrics
Related URLs:
Depositing User: Sophie Rollason
Date Deposited: 11 Jun 2014 08:49
Last Modified: 11 Jun 2014 08:49
URI: http://www.repository.heartofengland.nhs.uk/id/eprint/235

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