Conditions That Cause Secondary Myoclonus

Multiple System Atrophy

Multiple system atrophy is a rare neurological disorder that affects the body's involuntary functions. The condition shares so many symptoms with Parkinson's disease that it's often misdiagnosed as Parkinson's disease. Multiple system atrophy patients typically have their muscle control, bladder function, breathing, and blood pressure affected. Though there isn't a cure, there are medications to manage symptoms, which usually develop when patients are in their fifties and sixties. There are two main types of multiple system atrophy. The most common, the Parkinsonian type, progresses very similarly to Parkinson's disease. The other type is cerebellar multiple system atrophy, which mainly has symptoms related to a lack of muscle coordination. Patients may also have slurred speech and difficulty with swallowing. The other main symptom is postural hypotension, which occurs when an individual's blood pressure drops significantly when they stand up.

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