Moyamoya disease symptoms, complete summary | Moyamoya disease meaning, case study, genetics, and COVID-19 vaccine

if Moyamoya disease Have you ever heard of it? 🤔

This disease is a rare, incurable disease that occurs when the cerebral blood vessels gradually narrow.

Recently, the issue of causality with the coronavirus vaccine has once again been in the spotlight.

 

If you are not familiar with the symptoms of Moyamoya disease, I highly recommend that you take this opportunity to learn about them.

 

Moyamoya disease meaning

 

Moyamoya disease is a rare vascular disease that causes the main blood vessels leading to the brain to gradually narrow, which can lead to insufficient cerebral blood flow or bleeding.

 

The small auxiliary blood vessels that are created to compensate for the blocked blood vessels look like smoke, hence the name "Moyamoya" in Japanese.

 

It can affect children, adolescents, and adults.

 

 

 

Moyamoya disease symptoms

 

Moyamoya disease mainly presents with symptoms related to cerebral blood flow deficiency or cerebral hemorrhage.

If the following symptoms occur repeatedly, you may suspect it.

 

- Sudden loss of strength in arms or legs

- Speech becomes slurred or language becomes difficult to understand

- Recurring headaches, especially severe in the morning

- Dizziness, nausea, or vomiting

- Convulsive seizures

- In severe cases, symptoms of decreased consciousness or cerebral hemorrhage

 

Children, in particular, need extra caution as these symptoms may appear after actions that affect breathing, such as crying, holding one's breath, eating hot foods, or blowing up balloons.

 

Although nosebleeds are not a typical symptom, they can occur with brain hemorrhage and may be seen as an indirect sign.

 

 

Moyamoya disease genetics and causes

 

The exact cause of Moyamoya disease has not yet been identified,

It is known that genetic and environmental factors work in combination.

 

Especially in East Asia 'RNF213' There are numerous studies reporting that genetic mutations are associated with Moyamoya disease.

 

Although there are some cases with a family history, it is reported to account for approximately 10% of all patients.

 

 

Causal Relationship Between Moyamoya Disease and the COVID-19 Vaccine

 

In a recent case, a man in his 40s died of cerebral hemorrhage after receiving the COVID-19 vaccine, raising the possibility that his underlying condition, Moyamoya disease, may have worsened.

 

The court found a causal link between the vaccine and the death.

 

Although this is one of the rare cases where a causal relationship has been established, it cannot be concluded that the vaccine is dangerous for all patients with Moyamoya disease.

 

Some studies have even shown that vaccination can reduce the risk of stroke and mortality in patients with moyamoya disease.

 

However, it is also true that more research and caution are needed regarding exceptional situations, such as acute bleeding immediately after vaccination.

 

 

Real Case Study Seen on TV - Hope for a Family

 

In April 2025, MBC's 'Oh Eun-young Report - Marriage Hell' aired the story of a wife in a vegetative state due to Moyamoya disease, her husband who cares for her, and their son.

 

After the grief of losing his three-year-old son, the husband silently continued to nurse his wife as she collapsed from Moyamoya disease.

 

 

During the broadcast, the eldest son, who had entered high school, approached his mother in his new school uniform and greeted her.

At this time, the scene where the mother's mouth twitched and reacted brought tears to the eyes of many.

 

The son whispered to his mother, "Aren't you frustrated because you want to say something but can't find the words?"

The image of her crying alone in her room was revealed, causing much sorrow.

 

 

In the interview, the husband confessed, “I am afraid that continuing treatment will only cause my wife pain,” and honestly expressed his hardships and love as a patient’s family member.

 

This story resonated with many viewers. Moyamoya disease is not just a medical condition, but a real pain that can shake the lives of an entire family. This became an opportunity to inform people of the fact.

 

 

In summary

 

Moyamoya disease is a disease for which early diagnosis and consistent management are important.

If you suspect symptoms, we recommend that you visit a cerebrovascular specialist and undergo a detailed examination.

 

Additionally, if you feel anxious about external stimuli such as vaccination, it is recommended that you consult in advance to make a choice that is right for your condition.

 

 

 

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