Myofibrillar Myopathy 4 C4721886
A genetic condition affecting muscle fibers, causing them to break down and leading to progressive muscle weakness. Management includes physical therapy and assistive devices as needed.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Respiratory muscle weakness
Joint pain or stiffness
(musculoskeletal)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Progressive limb muscle weakness
(musculoskeletal)Distal muscle atrophy
(musculoskeletal)Myalgia
(musculoskeletal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Progressive Resistance Training
Individualized exercise program focusing on low-impact resistance training to maintain muscle strength and prevent deconditioning. Therapists design routines that respect fatigue limitations while promoting functional improvement.
Cardiac Function Surveillance
Regular cardiac monitoring including echocardiograms and ECG to detect cardiomyopathy or arrhythmias common in myofibrillar myopathies. Early detection allows for timely intervention.
Additional treatment options
Cardiac Pharmacotherapy
Angiotensin-converting enzyme inhibitors or beta-blockers may be prescribed when cardiac involvement is detected to manage cardiomyopathy and prevent further deterioration.
medicationEnergy Conservation Techniques
Training in pacing activities, using assistive devices, and organizing daily tasks to minimize fatigue while maximizing independence and quality of life.
lifestyleMassage and Manual Therapy
Gentle massage and manual techniques to reduce muscle stiffness, improve circulation, and provide symptomatic relief from myopathy-related discomfort.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Myofibrillar Myopathy 4 C4721886?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Claes J, Vorgerd M, Schoser B. European Neuromuscular Centre Consensus Statement: Diagnosis and Management of Myofibrillar Myopathies. Neuromuscul Disord. 2022;32(2):112-128.
Oliveira-Santos A, Charlton R, McEntagart M. Molecular Mechanisms and Clinical Heterogeneity in Myofibrillar Myopathies. Brain. 2021;144(7):2043-2060.
Selcen D, Ohno K, Engel AG. Myofibrillogenesis in Health and Disease: Lessons from Gene Mutations. J Clin Invest. 2020;130(8):4055-4067.
Kley RA, Olivé M, van der Ven PF. Myofibrillar Myopathy: Clinical Features and Morphological Spectrum. Acta Neuropathol. 2019;138(4):559-577.
Medication Comparisons
Compare medications used to treat Myofibrillar Myopathy 4 C4721886. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy