National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Mitochondrial myopathy with lactic acidosis



Other Names:
Metabolic myopathy associated with chronic lactic acidemia, growth failure, and nerve deafness
Categories:

The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 2597

Definition
Mitochondrial myopathy-lactic acidosis-deafness is a type of metabolic myopathy described only in two sisters to date, presenting during childhood, and characterized clinically by growth failure, severe muscle weakness, and moderate sensorineural deafness and biochemically by metabolic acidosis, elevated serum pyruvate concentration, hyperalaninemia and hyperalaninuria. There have been no further descriptions in the literature since 1973.

Visit the Orphanet disease page for more resources.
Last updated: 5/1/2014

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
EMG abnormality 0003457
Hyperalaninemia
Increased blood alanine
Increased serum alanine
[ more ]
0003348
Metabolic acidosis 0001942
Mitochondrial myopathy 0003737
Myopathy
Muscle tissue disease
0003198
Sensorineural hearing impairment 0000407
Skeletal muscle atrophy
Muscle degeneration
Muscle wasting
[ more ]
0003202
Vaginal fistula 0004320
30%-79% of people have these symptoms
Seizure 0001250
Percent of people who have these symptoms is not available through HPO
Autosomal recessive inheritance 0000007
Dysarthria
Difficulty articulating speech
0001260
Dysmetria
Lack of coordination of movement
0001310
Dystonia 0001332
Episodic vomiting 0002572
Fatigue
Tired
Tiredness
[ more ]
0012378
Focal impaired awareness seizure 0002384
Generalized hypotonia
Decreased muscle tone
Low muscle tone
[ more ]
0001290
Gowers sign 0003391
Hemiparesis
Weakness of one side of body
0001269
Increased serum lactate 0002151
Increased serum pyruvate 0003542
Infantile onset
Onset in first year of life
Onset in infancy
[ more ]
0003593
Lactic acidosis
Increased lactate in body
0003128
Moderate sensorineural hearing impairment 0008504
Muscle weakness
Muscular weakness
0001324
Postnatal growth retardation
Growth delay as children
0008897
Progressive
Worsens with time
0003676
Spasticity
Involuntary muscle stiffness, contraction, or spasm
0001257
Toe walking
Toe-walking
0040083
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Last updated: 7/1/2020

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources


Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Patient Registry


Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Mitochondrial myopathy with lactic acidosis. Click on the link to view a sample search on this topic.

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