Related Experiment Video

Updated: May 26, 2026

A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
04:23

A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease

Published on: April 28, 2019

Neurogenic stunned myocardium as a manifestation of encephalitis involving cerebellar tonsils

Wen-Sou Lin1, Yueh-Feng Sung

  • 1Department of Neurology, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan.

The American Journal of Emergency Medicine
|December 30, 2011
PubMed

Insights

Neurogenic stunned myocardium, a myocardial injury after neurological insults, can mimic heart attack symptoms. Prompt diagnosis and intervention are crucial for patient outcomes.

Area of Science:

  • Cardiology
  • Neurology
  • Critical Care Medicine

Background:

  • Neurogenic stunned myocardium (NSM) is myocardial dysfunction following neurological insults.
  • It is frequently observed in subarachnoid hemorrhage patients, presenting symptoms similar to myocardial infarction or myocarditis.
  • Severe NSM can lead to cardiogenic shock and acute pulmonary edema, necessitating urgent management.

Observation:

  • A 25-year-old woman presented with symptoms of acute pulmonary edema, shock, and altered consciousness.
  • Neurologic examinations and neuroimaging revealed encephalitis of the cerebellar tonsils with acute hydrocephalus.
  • Echocardiographic findings were characteristic of neurogenic stunned myocardium.

Findings:

  • The patient was diagnosed with encephalitis complicated by acute hydrocephalus and neurogenic stunned myocardium.
  • Characteristic echocardiographic changes were key in diagnosing NSM.
  • Prompt diagnosis and intervention were critical in managing this rare presentation.

Implications:

  • This case highlights the importance of recognizing neurogenic stunned myocardium in patients with neurological emergencies.
  • Early diagnosis through neurologic assessment and echocardiography can guide appropriate treatment strategies.
  • Understanding the link between neurological insults and cardiac dysfunction is vital for improving patient survival and outcomes.

More Related Videos

A Model for Encephalomyosynangiosis Treatment after Middle Cerebral Artery Occlusion-Induced Stroke in Mice06:54

A Model for Encephalomyosynangiosis Treatment after Middle Cerebral Artery Occlusion-Induced Stroke in Mice

Published on: June 22, 2022

Related Concept Videos

Encephalitis l: Introduction01:19

Encephalitis l: Introduction

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...
Encephalitis ll: Pathophysiology01:26

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...
Arboviral Encephalitis01:25

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
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...
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...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...