2024-04-05 21:43:52
Aysor.am continues to present the types of Multiple Sclerosis, which are several. We have already presented the symptoms of primary progressive multiple sclerosis.
Another type of multiple sclerosis is secondary progressive multiple sclerosis.
In patients with secondary progressive multiple sclerosis, the disease develops with an acute course some time after the manifestations. Patients, having symptoms characteristic of the attack course of multiple sclerosis, years later have a slow but progressive course of the disease, that is, progression of the disease, loss of neurological functions, even without the presence of acute attacks.
This stage is called secondary progressive multiple sclerosis, when the disease becomes less inflammatory, with fewer attacks and gradually begins to develop irreversible disability.
There are no reliable laboratory indicators to assess the development of secondary progressive multiple sclerosis, therefore, the transition to secondary progression is determined by the neurologist according to the clinical picture.
Researches show that 50 years after the onset of the disease, only 10% of patients have passed to the progressive stage, after 10 years this number reaches 2️5%, and after 30 years – 7️5%.
If the disease started at a young age, the transition to the secondary progressive form occurs later.
Men develop secondary progressive multiple sclerosis approximately 5️ years earlier than women.
The next type of multiple sclerosis is already described multiple sclerosis with an aggressive course. it is characterized by the presence of acute but short episodes of loss of neurological function (flares, exacerbations), followed by full or partial recovery (remission).
Attacks vary widely in their presentation and severity, ranging from mild sensory disturbance to complete immobility. For example, sensory disturbances in the skin of the limbs, feeling of numbness, or partial or complete loss of motor function of the limbs.
Approximately 8️5% of TS patients have an acute course. It is known, however, that most of these patients will later develop the secondary progressive course mentioned above.
The vast majority of patients, approximately 1️0%, are characterized as benign, with no or minimal neurologic functional impairment many years after disease onset. Some factors can help predict a similar course of the disease, they indicate a “benign” course of the disease.
Those factors are:
female sex
onset of the disease at a young age
the onset of the disease with sensory or visual complaints
full recovery after the first attacks
low frequency of subsequent attacks during the first five years of the disease.
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