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Encephalitis ll: Pathophysiology

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...

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Encephalitis l: Introduction

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Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...

Bacterial Meningitis II: Pathophysiology

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Updated: May 6, 2026

Isolating Central Nervous System Tissues and Associated Meninges for the Downstream Analysis of Immune cells

Isolating Central Nervous System Tissues and Associated Meninges for the Downstream Analysis of Immune cells

Published on: May 19, 2020

Central nervous system involvement in scrub typhus.

Harikishan Boorugu¹, Anugrah Chrispal, K G Gopinath

¹Assistant Professor, Department of Internal Medicine, Christian Medical College, Vellore, India.

Tropical Doctor

|November 15, 2013

Summary

This summary is machine-generated.

Scrub typhus is a growing infectious disease in India affecting the central nervous system. Early doxycycline treatment is crucial for reducing severe illness and deaths from this infection.

Keywords:

Aseptic meningitis central nervous system scrub typhus

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Area of Science:

Infectious Diseases
Neurology
Public Health

Background:

Scrub typhus is an emerging infectious disease in India.
Central nervous system (CNS) involvement is a frequent and serious complication of scrub typhus.

Purpose of the Study:

To describe the spectrum of central nervous system manifestations of scrub typhus in India.
To evaluate the impact of early doxycycline treatment on patient outcomes.

Main Methods:

Prospective observational study design.
Inclusion of patients diagnosed with scrub typhus.
Clinical assessment and documentation of neurological symptoms.

Main Results:

Altered sensorium, headache, and seizures were common CNS manifestations.
Aseptic meningitis was a frequently observed neurological complication.
Prompt administration of doxycycline was associated with reduced morbidity and mortality.

Conclusions:

Central nervous system involvement is a significant clinical feature of scrub typhus in India.
Early diagnosis and treatment with doxycycline are essential for improving outcomes in patients with scrub typhus CNS disease.