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Analysis of the factors influencing the cardiac phenotype in Friedreich's ataxia
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Rajagopalan, B., Francis, J. M., Cooke, F., Korlipara, L. V. P., Blamire, A. M., Schapira, A. H. V., Madan, Jason, Neubauer, S. and Cooper, J. M. (2010) Analysis of the factors influencing the cardiac phenotype in Friedreich's ataxia. Movement Disorders, 25 (7). - 852. doi:10.1002/mds.22864
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Official URL: https://doi.org/10.1002/mds.22864
Abstract
Friedreich's ataxia (FRDA) has been associated with both cardiac hypertrophy and to a lesser degree dilated cardiomyopathy. We have conducted a cross sectional magnetic resonance imaging (MRI) study of 25 patients with clinically and genetically confirmed FRDA and 24 healthy controls to analyse how disease parameters influence cardiac features in FRDA. MR cine imaging in the long and short axis planes was performed alongside clinical assessments. LV mass was most pronounced in FRDA patients with a larger genetic mutation (GAA1 repeats >600), earlier age of onset (<16years) and a shorter disease duration (<15 years). LV mass decreased with longer disease duration (>15 years), and independent of GAA1 repeat size and age of onset, suggesting cardiac thinning occurred with prolonged disease. Heart function was lower in patients with larger GAA1 repeat number and longer disease duration. Consequently, cardiac hypertrophy was more marked in FRDA patients with a larger GAA1 repeat number and younger age of onset, while prolonged disease duration was associated with lower LV mass and decreased heart function. It is important not only to understand the biochemical basis for these cardiac changes but also allow for these changes when assessing the effect of treatment of FRDA patients. © 2010 Movement Disorder Society
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | R Medicine > R Medicine (General) | ||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Clinical Trials Unit Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Journal or Publication Title: | Movement Disorders | ||||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||
| ISSN: | 0885-3185 | ||||||
| Official Date: | 2010 | ||||||
| Dates: |
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| Volume: | 25 | ||||||
| Number: | 7 | ||||||
| Page Range: | - 852 | ||||||
| DOI: | 10.1002/mds.22864 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Funder: | Ataxia UK and the Medical Research Council |
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