Seizures: Clinical Meaning

Epilepsy

Epilepsy is a neurological disorder characterized by recurrent, unprovoked seizures resulting from abnormal electrical activity in the brain. It affects people of all ages and can be managed with medication in most cases.

Brain Tumor

Brain tumors can be primary (arising in the brain) or metastatic (spreading from elsewhere). Glioblastoma is the most common malignant primary brain tumor, causing headaches, seizures, and progressive neurological deficits.

Encephalitis

Encephalitis is inflammation of the brain parenchyma, most commonly caused by viral infections (herpes simplex, enteroviruses). It presents with fever, altered consciousness, seizures, and focal neurological deficits; early antiviral treatment is crucial.

Bacterial Meningitis

Bacterial meningitis is a medical emergency caused by bacteria such as Neisseria meningitidis and Streptococcus pneumoniae infecting the meninges. It causes severe headache, neck stiffness, photophobia, and can rapidly cause brain damage or death.

Hypoparathyroidism

Hypoparathyroidism results from insufficient PTH production, causing low calcium levels (hypocalcemia) with muscle cramps, tetany, numbness, and seizures. It most commonly occurs after thyroid or parathyroid surgery.