Signs and symptoms depend on the type of spinal muscular atrophy, but may include hypotonia, tremors, impaired breathing, and abnormal gait. Spinal Muscular Atrophy (SMA) is a rare, genetically inherited neuromuscular condition.

This may affect crawling and walking ability, arm, hand, head and neck movement, breathing and swallowing.

It causes progressive muscle weakness and loss of movement due to muscle wasting ( atrophy ). Spinal muscular atrophy (SMA) is a group of neuromuscular disorders that result in the loss of motor neurons and progressive muscle wasting. The age of onset can play an important role when it comes to the severity of the disease, but regardless of when an older adult first sees symptoms, added care will be necessary in his or her later years.

This was equivalent to a total of fewer than 21,000 people *, and is below the ceiling for orphan designation, which is 5 people in 10,000. There is no cure for this muscular atrophy. Spinal muscular atrophy (SMA) is a progressive, devastating disease and a leading inherited cause of infant mortality. For many, spinal muscular atrophy beings in early childhood or even at birth; however, there are forms of the disease that begin in early to middle adulthood. Some types are apparent at or before birth while others are not apparent until adulthood. At the time of designation, spinal muscular atrophy affected less than 0.4 in 10,000 people in the European Union (EU). Statistics of Spinal Muscular Atrophy 14 people with Spinal Muscular Atrophy have taken the SF36 survey. The limited population-based literature is confined to small regional studies. Take the SF36 Survey The characteristic muscle weakness occurs because of a progressive degeneration of the alpha motor neuron from anterior horn cells in the spinal cord. The severity of symptoms and age of onset varies by the type. Spinal muscular atrophy (SMA) is a genetic disease affecting the central nervous system, peripheral nervous system, and voluntary muscle movement (skeletal muscle). Mean of Spinal Muscular Atrophy is 1379 points (38 %). Spinal muscular atrophy is a hereditary disease that destroys lower motor neurons nerve-cells in the brain stem and spinal cord. Spinal muscle atrophy (SMA; also known as spinal muscular atrophy) is an autosomal recessive hereditary disease characterized by progressive hypotonia and muscular weakness. All generally result in worsening muscle weakness associated with muscle twitching. Total score ranges from 0 to 3,600 being 0 the worst and 3,600 the best. Most of the nerve cells that control muscles are located in the spinal cord, which accounts for the word spinal in the name of the disease. Without treatment, progressive muscle weakness develops in babies with SMA2 between ages 6 and 12 months.

Spinal muscular atrophy type 2 (SMA2) is a genetic neuromuscular disorder that affects the nerve cells that control voluntary muscles (motor neurons). Estimates of prevalence are needed to characterize the burden of SMA and to understand trends in prevalence by disease type as new treatments become available.

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