Eclamptic palsy (EP) is a sudden impairment of swallowing and chewing movements due to an attack of tonic-clonic muscle spasms. During illness, painful swelling of the brain occurs, causing narrowing or blockage of brain vessels. EPILEPTIC (LAT. ECLAMPSIA): an attack of convulsions, which can occur in a healthy person after previous overexcitation of the brain; often accompanied by loss of consciousness. Etiology. Caused by sudden strong irritation of the brain. The resulting convulsive reflex affects both the midbrain, the cerebral cortex and the vagus nerve, which causes a characteristic external