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| Item Type: | Article |
|---|---|
| Title: | Cardiac and pulmonary findings in dysferlinopathy: a 3-year, longitudinal study |
| Creators Name: | Moore, U., Fernandez-Torron, R., Jacobs, M., Gordish, H., Diaz-Manera, J., James, M.K., Mayhew, A.G., Harris, E., Guglieri, M., Rufibach, L.E., Feng, J., Blamire, A.M., Carlier, P.G., Spuler, S., Day, J.W., Jones, K.J., Bharucha-Goebel, D.X., Salort-Campana, E., Pestronk, A., Walter, M.C., Paradas, C., Stojkovic, T., Mori-Yoshimura, M., Bravver, E., Pegoraro, E., Lowes, L.P., Mendell, J.R., Bushby, K., Bourke, J. and Straub, V. |
| Abstract: | INTRODUCTION/AIMS: There is debate about whether and to what extent either respiratory or cardiac dysfunction occur in patients with dysferlinopathy. This study aimed to establish definitively whether dysfunction in either system is part of the dysferlinopathy phenotype. METHODS: As part of the Jain Foundation's International Clinical Outcome Study (COS) for dysferlinopathy, objective measures of respiratory and cardiac function were collected twice, with a three-year interval between tests, in 188 genetically confirmed patients aged 11-86 years (53% female). Measures included forced vital capacity (FVC), electrocardiogram (ECG) and echocardiogram (echo). RESULTS: Mean FVC was 90% predicted at baseline, decreasing to 88% at year three. FVC was less than 80% predicted in 44 patients (24%) at baseline and 48 patients (30%) by year three, including ambulant participants. ECGs showed P-wave abnormalities indicative of delayed trans-atrial conduction in 58% of patients at baseline, representing a risk for developing atrial flutter or fibrillation. The prevalence of impaired left ventricular function or hypertrophy was comparable to that in the general population. DISCUSSION: These results demonstrate clinically significant respiratory impairment and abnormal atrial conduction in some patients with dysferlinopathy. Therefore, we recommend that annual or biannual follow-up should include FVC measurement, enquiry about arrhythmia symptoms and peripheral pulse palpation to assess cardiac rhythm. However, periodic specialist cardiac review is probably not warranted unless prompted by symptoms or abnormal pulse findings. |
| Keywords: | Cardiac, Dysferlin, Limb Girdle Muscular Dystrophy R2, Miyoshi Myopathy, Respiratory |
| Source: | Muscle & Nerve |
| ISSN: | 0148-639X |
| Publisher: | Wiley-Blackwell |
| Volume: | 65 |
| Number: | 5 |
| Page Range: | 531-540 |
| Date: | May 2022 |
| Additional Information: | Copyright © 2022 The Authors. Muscle & Nerve published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in anymedium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
| Official Publication: | https://doi.org/10.1002/mus.27524 |
| PubMed: | View item in PubMed |
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