Clonus

Clonus is a motor hyperkinetic state, manifested in systematic contraction or relaxation of muscle groups, fibrillar twitches. They can occur in various diseases and conditions, such as peripheral nerve damage, parkinsonism, myasthenia gravis. Clonic spasticity is a common symptom in patients with multiple sclerosis or neurosyphilis. There are benign clonic seizures, which occur after injury or infection, and clonic spastic paralysis, a rare condition observed in young people with progressive mental disorders. To make a diagnosis, video EEG monitoring and a test with GABA receptor agonists or antagonists are required. Treatment for clonic seizures depends on the cause of their occurrence in the child.