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Restrictive lung involvement in facioscapulohumeral muscular dystrophy
Michele A Scully1, Katy J Eichinger, Colleen M Donlin-Smith
1Department of Neurology, University of Rochester Medical Center, Box 673, 601 Elmwood Avenue, Rochester, New York, 14642.
Muscle & Nerve
|March 19, 2014
Summary
Facioscapulohumeral muscular dystrophy (FSHD) can cause restrictive respiratory issues, particularly in more severe cases with leg weakness. Early consideration of lung involvement is recommended for FSHD patients.
Area of Science:
- Neurology
- Pulmonology
- Genetics
Background:
- Limited research exists on respiratory complications in facioscapulohumeral muscular dystrophy (FSHD) types 1 and 2.
- Understanding these complications is crucial for patient management.
Purpose of the Study:
- To determine the frequency of respiratory involvement in FSHD.
- To identify potential predisposing factors for respiratory issues in FSHD.
Main Methods:
- A prospective, cross-sectional observational study was conducted.
- 61 genetically confirmed FSHD participants (FSHD1 and FSHD2) underwent pulmonary function tests, clinical assessments, and manual muscle testing.
Main Results:
- Restrictive respiratory involvement was suggested in 9.8% of participants.
- FSHD2 patients showed a higher frequency (25.0%) of restrictive lung involvement compared to FSHD1 (7.5%).
- Participants with restrictive lung involvement were more severely affected, had weaker hip flexion, and were more likely to use a wheelchair.
Conclusions:
- Restrictive respiratory involvement should be considered in moderate to severe FSHD patients with proximal lower extremity weakness.
- Further research with larger cohorts is needed to confirm the higher frequency of restrictive lung disease in FSHD2.
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