Oculopharyngeal muscular dystrophy
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| Oculopharyngeal muscular dystrophy | |
|---|---|
| Error creating thumbnail: | |
| Synonyms | OPMD |
| Pronounce | |
| Specialty | Neurology, Genetics |
| Symptoms | Dysphagia, ptosis, muscle weakness |
| Complications | N/A |
| Onset | Typically after age 40 |
| Duration | Progressive |
| Types | |
| Causes | Mutations in the PABPN1 gene |
| Risks | Family history |
| Diagnosis | Genetic testing, muscle biopsy |
| Differential diagnosis | Myasthenia gravis, other muscular dystrophies |
| Prevention | N/A |
| Treatment | Swallowing therapy, surgery for ptosis, dietary modifications |
| Medication | |
| Prognosis | Variable, generally slowly progressive |
| Frequency | Rare |
| Deaths | |
Oculopharyngeal muscular dystrophy (OPMD) is a rare form of muscular dystrophy with symptoms generally starting when an individual is between 40 and 60 years old. It is characterized by slowly progressive ptosis (drooping of the eyelids) and dysphagia (difficulty swallowing).
Symptoms[edit]
The first symptom of OPMD is usually ptosis, followed by dysphagia. As the disease progresses, weakness in the facial muscles may occur, along with weakness in the limbs. In some cases, individuals may also experience diplopia (double vision).
Causes[edit]
OPMD is caused by a mutation in the PABPN1 gene. This gene provides instructions for making a protein that is involved in processing messenger RNA (mRNA), which serves as genetic blueprints for making proteins.
Diagnosis[edit]
Diagnosis of OPMD is based on the clinical symptoms, a physical examination, and confirmed by genetic testing. Other tests that may be used include a muscle biopsy, electromyography (EMG), and barium swallow.
Treatment[edit]
There is currently no cure for OPMD. Treatment is focused on managing the symptoms and may include surgery for ptosis and swallowing difficulties. Physical therapy may also be beneficial.
Epidemiology[edit]
OPMD is most common in individuals of French-Canadian descent, but it has been found in many different ethnic groups around the world.
See also[edit]
References[edit]
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