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Dec 12, 2022 · Myotonic dystrophy (DM) is a genetic condition that causes muscle weakness, atrophy and myotonia. It has two main forms: type 1 and type 2. There is no cure for DM, but treatments can help manage symptoms and improve quality of life.
Age at onset is between 20 and 70 years (typically onset occurs after age 40), and life expectancy is normal. The CTG repeat size is usually in the range of 50 to 150. 1 Onset for DM2 ranges from the second to the seventh decade of life, often presenting with myotonia, weakness, or cataracts.
- Respiratory muscle weakness does not appear to be a common feature of DM2.However, in DM1, respiratory muscles weakness can affect lung function an...
- A long, thin face with hollow temples, drooping eyelids and, in men, balding in the front, is typical in myotonic dystrophy.The muscles of the neck...
- The digestive tract and uterus (womb) often are affected in type 1 myotonic dystrophy. These organs contain involuntary muscles, which can weaken o...
- Weakness of the voluntary muscles usually is the most noticeable symptom for people with adult-onset DM.The distal muscles (those farthest from the...
Mar 19, 2024 · Myotonic dystrophy is a genetic condition that affects muscle strength and tone. Life expectancy depends on the type and severity of the condition, but respiratory failure is the most common cause of death.
Jul 7, 2023 · Learn how different types of muscular dystrophy affect life expectancy and prognosis. Myotonic dystrophy is one of the types that can reduce life span and cause heart problems.
Jun 5, 2024 · Myotonic dystrophy is a genetic disorder that causes muscle wasting and weakness. Learn about the two types, how they are diagnosed and treated, and the outlook for people with this condition.
Life expectancy in non-congenital late-onset or adult onset DM1 is in the early 50s, with pulmonary complications being the leading cause of death, followed by cardiac complications. DM2 life expectancy has yet to be studied. Epidemiology. The prevalence of DM1 ranges from 5 to 20 per 100,000 (1:20,000–1:5000).
6 days ago · In the most severe cases, respiratory and cardiac complications can be life-threatening even at an early age. In general, the younger an individual is when symptoms first appear, the more severe symptoms are likely to be. However, prognosis is as variable as the symptoms of this disease.
