What is progressive spinal muscular atrophy?

summary

Progressive muscular atrophy, also known as progressive, spinal muscular atrophy, is a subtype of muscular atrophy, lateral sclerosis. It is characterized by seasonal atrophy and muscle weakness, usually from the small muscles of the hand will spread to the whole upper limb and reflex disappear, sensory disorders, do not appear, some patients may eventually develop amyotrophic lateral sclerosis. Seasonal atrophy, the onset is more hidden, prone to middle-aged men, his performance is weak hands, hand internal muscle atrophy. Even it's very difficult to send buttons, pick up small objects and write.

What is progressive spinal muscular atrophy?

1. After progressive muscular atrophy, muscle weakness will spread, adjacent muscle groups will immediately close, and then develop to the lower limbs. In some cases, the disease starts from the foot, then extends to the lower limbs, and then to the upper limbs. Muscle atrophy, weakness into symmetrical development, sometimes even involving a hand.

2. Muscle tension will also be reduced, tendon reflex will be weakened. There was no dysfunction of sphincter, pathological reflex did not appear, but it could be seen in frequent rapid tremor. When the hormone is normal, it can appear in some parts, accompanied by shivering, emotional fluctuation or mechanical stimulation, it can induce the aggravation of muscle tremor.

3. According to the classification, the symptoms of muscle atrophy are mainly divided into neurogenic muscle atrophy, which is more common in the distal limbs, symmetrical or asymmetric, without sensory disturbance, often with muscle bundle vibration, muscle strength and tendon reflex degree and damage degree. The second is myogenic atrophy, which is caused by the disease of muscle itself.

matters needing attention

Central muscular atrophy is usually accompanied by hyperreflexia or pathological reflex. Ischemic muscle atrophy is mostly caused by a variety of arteritis, thrombosis and other muscle ischemia and aseptic necrosis. The cost of muscle atrophy is due to long-term inactivity.