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Related Concept Videos

Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...

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Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
10:03

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery

Published on: November 5, 2019

Bacterial meningitis.

Karen L Roos1, Diederik van de Beek

  • 1Department of Neurology, Indiana University School of Medicine, Indiana University Hospital, Indianapolis, 46202, USA. kroos@iupui.edu

Handbook of Clinical Neurology
|January 30, 2010
PubMed
Summary
This summary is machine-generated.

Prompt recognition and treatment of bacterial meningitis are crucial. Early empiric antimicrobial therapy and supportive care improve patient outcomes for this neurological emergency.

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • Bacterial meningitis is a life-threatening neurological emergency.
  • Prompt diagnosis and management are critical for patient survival and reducing morbidity.

Purpose of the Study:

  • To outline the key diagnostic indicators and immediate management strategies for bacterial meningitis.
  • To emphasize the importance of timely intervention in improving patient outcomes.

Main Methods:

  • Review of clinical signs, laboratory findings, and diagnostic markers suggestive of bacterial meningitis.
  • Discussion of recommended empiric antimicrobial and adjunctive therapies.
  • Guidelines for patient disposition, including intensive care unit admission.

Main Results:

  • Clinical indicators include fever, headache, meningismus, vomiting, photophobia, and altered consciousness.
  • Laboratory predictors include leukocytosis with left shift, elevated procalcitonin and C-reactive protein, cerebrospinal fluid pleocytosis, and low glucose.
  • Early initiation of treatment upon obtaining blood cultures is vital.

Conclusions:

  • Timely recognition and initiation of empiric antimicrobial and adjunctive therapy are paramount.
  • Admission to the intensive care unit is recommended for confirmed or highly suspected cases.
  • Effective management hinges on rapid diagnosis and prompt, aggressive treatment.