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Encephalomyelitis: Understanding the Causes, Symptoms and Diagnosis

Encephalomyelitis is a complex and multifaceted disease that poses significant challenges in both diagnosis and management. Its impact on the nervous system can lead to a wide array of physical, cognitive and sensory symptoms that can substantially affect a patient’s quality of life. Early diagnosis and intervention are essential in mitigating these effects and improving outcomes. Although encephalomyelitis can be a debilitating condition, advances in immunotherapy and neurorehabilitation continue to improve recovery rates and offer hope for affected individuals.

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Articles of Interest

Postinfectious Encephalomyelitis

Postinfectious encephalomyelitis is an acute monophasic disorder of the central nervous system (CNS) that occurs within days to weeks of a viral illness or a vaccination. The antecedent viral illness is typically either an upper respiratory tract infection or a nonspecific febrile illness. In the past, most cases were associated with the exanthematous diseases (vaccinia, measles, varicella, and rubella) (1). Although postinfectious encephalomyelitis has a clear temporal relationship with infection or immunization, it is not the result of primary neural tissue invasion by an organism. Infectious agents are rarely identified or recovered from neural tissue.. The disease is instead an immune-mediated disease triggered by an infectious agent or an immunization.

Viral Encephalomyelitis

Viral encephalomyelitis is an important cause of morbidity and mortality worldwide, and many encephalitic viruses are emerging and re-emerging due to changes in virulence, spread to new geographic regions, and adaptation to new hosts and vectors]... In humans, the viruses most commonly identified as causes of viral encephalomyelitis are herpesviruses and RNA viruses in the enterovirus... Because infections with encephalitic viruses are initiated outside the CNS (e.g., with an insect bite, skin, respiratory, or gastrointestinal infection), innate and adaptive immune responses are usually mounted rapidly enough to prevent virus entry into the CNS.

What is Perivenous encephalomyelitis

Perivenous demyelination is the pathological hallmark of acute disseminated encephalomyelitis. Acute disseminated encephalomyelitis (ADEM) is characterized by a brief but widespread attack of inflammation in the brain and spinal cord that damages myelin – the protective covering of nerve fibers.

Acute Disseminated Encephalomyelitis (ADEM): A Comprehensive Guide to Symptoms, Diagnosis, and Treatment

Although the precise origin of ADEM is unknown, it may be linked to an abnormal immune response that occurs after a viral trigger. In between 70 and 80 percent of individuals with ADEM, a first illness or infection is seen. For instance, ADEM may develop after a viral infection in the upper respiratory tract. Influenza, measles, mumps, rubella, varicella-zoster, Epstein-Barr virus, cytomegalovirus, and herpes simplex virus are other illnesses that can cause ADEM.

Eastern, Western and Venezuelan Equine Encephalomyelitis

Eastern equine encephalomyelitis (EEE), western equine encephalomyelitis (WEE) and Venezuelan equine encephalomyelitis (VEE) are mosquito-borne viral diseases, found in the Americas, that cycle among wild vertebrates but sometimes affect humans and equids, and occasionally other animals. The predominant form of the illness and its severity varies with the host and virus, but clinical cases of encephalitis can have a high case fatality rate, particularly when they are caused by EEEV.

Equine encephalomyelitis (Western)

Western equine encephalomyelitis (WEE) virus belongs to the genus Alphavirus of the family Togaviridae. WEE virus is present in the Americas and can cause disease in both humans and equids with encephalitis in most clinical cases. WEE is typically maintained in nature by alternating between vertebrate hosts and vector mosquitoes. Encephalitis caused by this virus occurs sporadically in horses and humans from mid-summer to late autumn in temperate regions but can occur year-round in tropical regions, depending on climate conditions that support the presence of the mosquito vector.

Life Restored: My Recovery from Myalgic Encephalomyelitis, or Chronic Fatigue Syndrome

You could say I was the recipient of a miracle. In December 2018, having lived with chronic pain for 25 years and having had the debilitating illness Myalgic Encephalomyeltis, or Chronic Fatigue Syndrome, for 14 years, I did what many say is impossible: I recovered completely.

Resources

ScienceDirect

Encephalomyelitis refers to a condition that involves dysfunction in multiple parts of the central nervous system, such as the hippocampus, spinal cord, and dorsal root ganglia of myenteric plexus. It is commonly observed in patients with SCLC and is associated with antibodies like anti-Hu and anti-CV2.