Rapid-onset dystonia parkinsonism
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| Rapid-onset dystonia parkinsonism : Rapid-onset dystonia parkinsonism (sometimes referred to as RDP) is a rare movement disorder. "Rapid-onset" refers to the abrupt appearance of signs and symptoms over a period of hours to days. Dystonia is a condition characterized by involuntary, sustained muscle contractions. Parkinsonism can include tremors, unusually slow movement (bradykinesia), rigidity, an inability to hold the body upright and balanced (postural instability), and a shuffling walk that can cause falls. Rapid-onset dystonia parkinsonism causes movement abnormalities that can make it difficult to walk, talk, and carry out other activities of daily life. In people with this disorder, dystonia affects the arms and legs, causing muscle cramping and spasms. Facial muscles are often affected, resulting in problems with speech and swallowing. People with rapid-onset dystonia and parkinsonism may also have headaches; seizures; a distorted view of reality (psychosis); or difficulty processing, learning, and remembering information (cognitive impairment). The movement abnormalities associated with rapid-onset dystonia parkinsonism tend to begin near the top of the body and move downward. They affect the facial muscles first, then the arms, and finally the legs. The signs and symptoms of rapid-onset dystonia parkinsonism most commonly appear in adolescence or young adulthood. In some affected individuals, signs and symptoms can be triggered by an infection, physical stress (such as prolonged exercise), emotional stress, or alcohol consumption. The signs and symptoms tend to stabilize within about a month, but they typically do not improve much after that. In some people with this condition, the movement abnormalities abruptly worsen during a second episode several years later. Some people with rapid-onset dystonia parkinsonism have been diagnosed with anxiety, social phobias, depression, and seizures. It is unclear whether these disorders are related to the genetic changes that cause rapid-onset dystonia parkinsonism. | |
| Review Date: 23/04/2024 | Updated By: |