| Autor: |
Esther S. Veldhoen, Camiel A. Wijngaarde, Erik H. J. Hulzebos, Roelie M. Wösten-van Asperen, Renske I. Wadman, Ruben P. A. van Eijk, Fay Lynn Asselman, Marloes Stam, Louise A. M. Otto, Inge Cuppen, Feline E. V. Scheijmans, Laura P. Verweij-van den Oudenrijn, Bart Bartels, Michael A. Gaytant, Cornelis K. van der Ent, W. Ludo van der Pol |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Orphanet Journal of Rare Diseases, Vol 17, Iss 1, Pp 1-11 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1750-1172 |
| DOI: |
10.1186/s13023-022-02227-7 |
| Popis: |
Abstract Background Respiratory complications are the most important cause of morbidity and mortality in spinal muscular atrophy (SMA). Respiratory muscle weakness results in impaired cough, recurrent respiratory tract infections and eventually can cause respiratory failure. We assessed longitudinal patterns of respiratory muscle strength in a national cohort of treatment-naïve children and adults with SMA, hypothesizing a continued decline throughout life. Methods We measured maximal expiratory and inspiratory pressure (PEmax and PImax), Sniff Nasal inspiratory pressure (SNIP), peak expiratory flow (PEF), and peak cough flow (PCF) in treatment-naïve patients with SMA. We used mixed-models to analyze natural history patterns. Results We included 2172 measurements of respiratory muscle function from 80 treatment-naïve patients with SMA types 1c-3b. All outcomes were lower in the more severe phenotypes. Significant differences in PEF were present between SMA types from early ages onwards. PEF decline was linear (1–2%/year). PEF reached values below 80% during early childhood in types 1c-2, and during adolescence in type 3a. PEmax and PImax were severely lowered in most patients throughout life, with PEmax values abnormally low (i.e. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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