Moyamoya Disease Treatment in Turkey

What is Moyamoya Disease and Its Typical Symptoms?

Moyamoya disease is a progressive cerebrovascular condition characterised by the gradual narrowing and blockage of the main internal carotid arteries inside the skull. As blood flow to the brain decreases, tiny, fragile collateral blood vessels develop at the base of the brain to compensate. On angiograms, these delicate vessels resemble a "puff of smoke", which is the literal translation of the Japanese term "moyamoya".

Because the brain is chronically deprived of adequate oxygenated blood, individuals experience neurological symptoms that vary depending on age. Children often present with recurrent transient ischaemic attacks (TIAs) or mini-strokes, frequently triggered by crying, hyperventilation, coughing, or fever. Adults may experience these temporary attacks, but they are also at higher risk for sudden intracranial haemorrhage caused by the rupture of fragile collateral vessels. Common symptoms across all ages include:

• Sudden weakness, numbness, or paralysis on one side of the face or body.
• Difficulty speaking, slurred speech, or trouble understanding language (aphasia).
• Severe, persistent headaches that do not respond to standard pain relief.
• Seizures or involuntary muscle movements.
• Vision changes, such as partial loss of sight or double vision.
• Cognitive decline or learning difficulties in developing children.

How Moyamoya Disease is Diagnosed in Turkey

When seeking specialist evaluation in Turkey, international patients undergo high-resolution neuroimaging to assess the extent of arterial narrowing and map the collateral blood supply. Evaluating hospitals perform comprehensive tests overseen by specialists in Neurosurgery to determine whether surgical intervention is required.

Standard diagnostic investigations typically include:

• Digital Subtraction Angiography (DSA): The gold-standard diagnostic tool used to visualize precise arterial narrowing and the characteristic vessel networks.
• Magnetic Resonance Imaging (MRI) and MR Angiography (MRA): Used to detect past or recent silent strokes, brain tissue damage, and non-invasive blood flow patterns.
• Computed Tomography (CT) Angiography: Provides rapid 3D imaging of cranial blood vessels, useful for evaluating acute haemorrhage or structural anatomy.
• Perfusion Imaging (SPECT, PET, or Perfusion MRI): Measures actual cerebral blood flow and reserve capacity to show which areas of the brain are most deprived of oxygen.

Patients travelling from abroad should gather and bring all historic MRI scans, angiograms, detailed neurologist reports, current medication lists, and recent Check-ups & Diagnostics records on a portable drive (DICOM format) for early review.

Treatment Options and Clinical Approaches

Medical treatments, such as antiplatelet medications or blood pressure management, may be used to reduce clot risks or control symptoms. However, medication cannot stop or reverse arterial narrowing. Surgical revascularisation is the primary treatment used to restore adequate blood supply to oxygen-starved brain tissue.

Surgical suitability is determined by the treating neurosurgeon following a complete review of angiographic imaging and cerebral perfusion studies.

Planning Treatment and International Travel to Turkey

International medical journeys require thorough pre-departure coordination. The initial step involves submitting digital DICOM imaging and clinical reports to the medical team in Turkey for preliminary evaluation. If surgical revascularisation is recommended, international travel can be scheduled.

Patients generally need to plan for a total stay of 2 to 3 weeks in Turkey. This timeline usually includes pre-operative baseline evaluations, surgical admission, a short stay in an intensive care unit, several days of ward recovery, and post-operative follow-up consultations. During initial rehabilitation, patients may receive supportive care, such as targeted physical therapy or specialist interventions under Paediatrics or general Rehabilitation teams.

Before returning home, patients receive detailed surgical summaries, updated imaging, and long-term care guidelines. Continued monitoring remains essential; patients must establish routine follow-ups with a local neurologist in their home country for ongoing monitoring and periodical imaging.

When Travel is Not Advisable and Emergency Signs

Long-distance travel or flying carries inherent risks for individuals with unstable cerebrovascular conditions. Travel should be postponed if a patient has experienced a recent stroke, active intracranial bleeding, unmanaged high blood pressure, severe dehydration, or frequent daily TIAs. Cabin pressure changes and stress during flights can increase hyperventilation, potentially triggering ischaemic events.

Immediate local emergency care must be sought if any of the following warning signs occur:

• Sudden loss of movement or sensation in the face, arm, or leg.
• Abrupt inability to speak, severe confusion, or slurred speech.
• Sudden, severe headache unlike any previously experienced.
• Loss of consciousness, fainting, or prolonged seizures.
• Acute changes in vision or balance loss.

For individuals with complex medical backgrounds, such as those with concurrent conditions requiring Cardiac Surgery or specialized Endocrinology oversight, thorough medical clearance must be obtained before undertaking international travel.