1, myasthenia gravis can be seen at any age.2, women slightly more than men, male: female about 1:2 ~ 3.3, about 70 to 90% of patients for t
1, myasthenia gravis can be seen at any age.
2, women slightly more than men, male: female about 1:2 ~ 3.
3, about 70 to 90% of patients for the first symptom of extraocular muscle weakness, showed ptosis, diplopia, strabismus. Eyelid ptosis in children can be left to right or left.
4, in adult patients with ocular involvement, about 40% of the patients in a few months or 2 years and gradually involved bulbar muscles into systemic weakness. Bulbar muscle weakness as the first symptom accounted for 5 to 15%, often accompanied by masticatory muscle weakness symptoms, performance for the rabbit eye facialexpression, forced smile face, plump cheeks and not even blowing eating suffering, choking water, etc.. A small number of acute onset, but also the involvement of extraocular muscles, bulbar muscles, limbs, muscles and even respiratory muscles, known as acute progressive myasthenia gravis.
5, adult onset myasthenia gravis, in first ~ 2 years of active treatment is extremely important.