Perivenous Encephalomyelitis

What is Perivenous Encephalomyelitis?

Perivenous encephalomyelitis is inflammation of the brain and spinal cord with demyelination, meaning loss of the myelin coating on nerve fibers, concentrated around small veins. Perivenous demyelination is regarded as the pathological hallmark of acute disseminated encephalomyelitis (ADEM), an immune-mediated disorder of the central nervous system, so most medical information about this condition is found under the ADEM name.^{[1, 2]}

Common symptoms

Symptoms usually begin abruptly, over days to weeks. Early signs of ADEM can include fever, nausea and vomiting, headache and neck stiffness, together with drowsiness or confusion.^[3]

Depending on where the inflammation is, people can also have weakness, numbness, vision loss or problems with balance and coordination, because the brain, spinal cord and sometimes the optic nerve can be involved.^[2] In one pathology study, those with perivenous demyelination were more likely than those with multiple sclerosis to present with confusion, reduced alertness and headache.^[1]

Causes and risk factors

ADEM is thought to be an immune reaction that often follows a viral infection or an immunization.^{[2, 4]} It mainly affects children but also occurs in adults.^[2] In a review of autoimmune encephalitis, about 60% of people with ADEM had antibodies against myelin oligodendrocyte glycoprotein (MOG).^[5] In some people no trigger is found.

How it is diagnosed and treated conventionally

Diagnosis is mainly clinical, supported by brain MRI, and it is important to tell it apart from multiple sclerosis because treatment and outlook differ.^{[2, 3]} A spinal tap and blood tests are commonly used to look for infection and other causes. Perivenous and multiple-sclerosis-type demyelination can overlap in some people, so careful follow-up matters.^[1]

Treatment is directed by neurologists and typically begins with steroids, with stronger immunosuppressive treatments used in severe cases.^[3] Intravenous immunoglobulin and plasma exchange are other standard options, along with rehabilitation.^[2] ADEM is usually a single episode whose symptoms last weeks to months, but a relapsing form occurs in a minority.^[3] Prompt diagnosis and treatment lead to substantial recovery in most people with autoimmune encephalitis.^[5]

Why Perivenous Encephalomyelitis calls for a whole-person approach

This condition begins as an immune attack on the nervous system and needs specialist treatment first. Recovery afterward can involve fatigue, stiffness, poor sleep and emotional strain that are not fully addressed by medication alone.

Supportive care aims at these symptoms, not at the inflammation or the damaged myelin.

The immune system and the nervous system

The disorder is immune-mediated and often follows an infection or immunization, which is why immune-suppressing medicines are used.^{[2, 4]} Because these medicines lower defenses, any herbal product needs a physician's review.

Fatigue and mobility

Fatigue is a pervasive and disabling symptom of multiple sclerosis, a related demyelinating disease, and muscle stiffness (spasticity) can follow damage to the motor pathways of the brain and spinal cord.^{[6, 7]} Rehabilitation with physical and occupational therapists remains the foundation of recovery of strength and movement, and any complementary care should fit around it.

Sleep and stress

A serious neurological illness is stressful, and poor sleep and anxiety can make fatigue and daily function worse. The studies below on sleep and stress are in other groups of people.^{[8, 9]}

Acupuncture as supportive care in Perivenous Encephalomyelitis

What the research shows

We found no clinical trials of acupuncture for perivenous encephalomyelitis or ADEM. The following evidence comes from related symptoms in other conditions, and it may not apply here.

For fatigue in multiple sclerosis, a meta-analysis of six studies (four randomized trials and two observational studies) found lower fatigue and better quality of life with acupuncture, but the studies had a high risk of bias and the authors called for larger, higher-quality trials.^[6]

For stiffness, a review found moderate-quality evidence that electroacupuncture added to usual care reduced spasticity after stroke, but not enough evidence to conclude the same for other central nervous system diseases.^[7] An overview of 18 systematic reviews likewise rated acupuncture as moderate-quality evidence as an add-on in stroke only.^[10]

For sleep, a review of 24 trials in people with insomnia included a meta-analysis of 15 trials that found acupuncture improved sleep scores compared with medication, with effects seen from the third week of treatment. Results varied widely between trials.^[8]

How acupuncture may work

No mechanism has been studied in perivenous encephalomyelitis. Proposals for neurological symptoms in general, such as effects on muscle tone or on the nervous system's processing of stress, are not established for this condition.

What treatment involves

Treatment uses fine, sterile, single-use needles, usually left in place for about 20 to 40 minutes, with reassessment after a short course of visits. It should begin only after your neurology team has the condition under management.

In prospective studies, about 9 in 100 patients had a minor reaction such as soreness or bleeding at a needle site, and serious events occurred in about 1 in 10,000 patients.^[11] Tell the practitioner first if you have a bleeding disorder, take blood thinners, are pregnant, or have a pacemaker (relevant to electroacupuncture). Also tell us if you have seizures or reduced sensation, or take immune-suppressing drugs.

Ayurvedic medicine as supportive care in Perivenous Encephalomyelitis

The Ayurvedic view

Ayurveda has no classical name that matches this condition. Practitioners may describe a disorder of the nervous system with weakness and numbness as a Vata imbalance, a traditional framework for choosing supportive care, not a biomedical diagnosis.

Therapies that may be used

Care is individualized and may include:

• Regular meal, sleep and daily routines
• Gentle warm-oil massage for stiffness and relaxation
• Breathing and relaxation practices for stress
• Herbs traditionally used for nervous system support, prescribed individually

Panchakarma is not appropriate during pregnancy, acute illness, frailty, or while someone is on high-dose steroids or immune-suppressing treatment, so it is not suitable for this condition.

What the research shows

We found no studies of Ayurvedic treatment for perivenous encephalomyelitis or ADEM. For stress, a meta-analysis of 12 trials found that ashwagandha extract reduced anxiety and stress scores compared with placebo, but certainty was low and results varied widely.^[9] Those trials were not in people with this condition.

How ashwagandha interacts with steroids and immune-suppressing treatment has not been well studied, so it should not be used without your neurologist's agreement.

Quality matters too. About one fifth of Ayurvedic medicines bought online contained detectable lead, mercury or arsenic, and products that combine herbs with metals had higher rates.^[12] Herbs combined with metals should be avoided.

Herbal medicine as supportive care in Perivenous Encephalomyelitis

Herbs and formulas that have been studied

No herbs or formulas have been tested for perivenous encephalomyelitis. Curcumin (from turmeric) has been studied in autoimmune diseases, including two randomized trials in multiple sclerosis.^[13]

What the research shows

A review of 31 trials of curcumin in 10 autoimmune diseases found improvement in some, such as ulcerative colitis, but the number of trials per disease was small, including just two for multiple sclerosis, and the authors said more high-quality trials were needed.^[13] That evidence does not show benefit in this condition.

Safety and herb-drug interactions

Herbs can interact with the medicines used here. A review of herb-drug interactions describes St John's wort lowering blood levels of immune-suppressing drugs such as cyclosporine and tacrolimus, with one case where this led to organ rejection.^[14] It also describes bleeding with warfarin and some herbs.^[14]

About one fifth of Ayurvedic products bought online contained detectable lead, mercury or arsenic.^[12] Herbs should come from tested sources. Tell us if you are pregnant or breastfeeding, or have liver or kidney disease.

Translating traditional medicine into modern biological language

This is interpretation, not equivalence. Chinese medicine describes weakness, numbness and stiffness after a serious illness as obstruction or deficiency in the channels, and Ayurveda attributes them to Vata. Researchers instead study immune-mediated myelin damage and the recovery of nerve signaling.^{[1, 4]}

No study has shown that any traditional pattern corresponds to a specific biological process in this disease, and traditional care does not act on the inflammation or myelin loss itself.

How this care fits with your medical care

For a condition like this, we ask that you are under a physician's care for it and that your treating team knows you are receiving complementary care. Perivenous encephalomyelitis needs neurological diagnosis, imaging and specialist treatment.^{[2, 3]} Do not stop, delay or change steroids, immune treatments or rehabilitation because of acupuncture, Ayurveda or herbs.

Please bring your diagnosis, recent MRI reports, a full list of medicines and supplements, and your neurologist's contact details. We do not diagnose or manage the disease itself.

When to seek urgent medical care

This condition can progress quickly and some symptoms need emergency evaluation.^[2]

• New confusion, unusual drowsiness or difficulty staying awake
• Seizures
• New or worsening weakness, paralysis or loss of sensation
• Sudden vision loss or double vision
• Trouble speaking, swallowing or walking
• Loss of bladder or bowel control
• Severe headache with fever and stiff neck

If any of these occur, call 911 or go to the nearest emergency department.