Knowra Meningitis Meningitis Meningitis is inflammation of the meninges, the membranes surrounding the brain and spinal cord. It can result from infections or noninfectious conditions.
Bacterial meningitis : Meningeal inflammation caused by bacteria, often progressing rapidly and requiring urgent antimicrobial treatment. Bacteria can trigger severe inflammation and make this form a medical emergency.
Meninges : The three membranes—dura mater, arachnoid mater, and pia mater—that surround the brain and spinal cord. These are the tissues whose inflammation defines meningitis.
Cerebrospinal fluid analysis : Laboratory examination of cerebrospinal fluid to detect infection, inflammation, or other neurological conditions. Cell counts, chemistry, and microbiology help distinguish meningitis causes.
Encephalitis : Inflammation of brain tissue, usually caused by infection or an immune reaction. It affects brain tissue rather than primarily the membranes surrounding it.
Hearing loss : Partial or complete loss of the ability to hear. Damage to the auditory system is a recognized complication, particularly after bacterial meningitis.
Viral meningitis : Meningeal inflammation caused by viruses, commonly less severe than bacterial meningitis. Viruses are a frequent infectious cause, with a different typical course and treatment.
Brain : The central nervous system organ responsible for processing information and coordinating bodily functions. Nearby brain tissue can also become affected when meningeal inflammation is severe.
Blood culture : A laboratory test that detects bacteria or fungi circulating in a blood sample. Blood cultures can identify organisms causing meningitis, especially before antibiotics alter results.
Meningoencephalitis : Inflammation involving both the meninges and brain tissue. This condition combines meningeal inflammation with direct involvement of the brain.
Hydrocephalus : Abnormal accumulation of cerebrospinal fluid within the brain’s ventricles. Inflammation can obstruct fluid flow or absorption and contribute to this complication.
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