Trigeminal Neuralgia: Microvascular Decompression and Balloon Compression

Why an accurate diagnosis comes first

Trigeminal neuralgia typically causes sudden, severe, shock-like pain on one side of the face. Touch, chewing, toothbrushing, or speaking may trigger attacks. Some people also have background aching or burning. Dental disease, jaw disorders, other headache syndromes, and nerve injury can produce facial pain requiring different care.

The clinician reviews your pain pattern, neurological examination, treatment history, and usually MRI findings. MRI can look for nerve compression and other causes such as a tumor or multiple sclerosis. Finding a blood vessel near a nerve does not by itself establish the cause of pain. NIH explains why the diagnosis and underlying cause guide treatment.

When a procedure may help

Medicines are often the first treatment. A procedure may be considered when attacks remain disabling, side effects make medication difficult to tolerate, or a well-informed patient prefers a procedural option after discussing the tradeoffs. Treatment should account for your ability to eat, drink, work, and function, as well as surgical risk.

MVD is most relevant when the clinical picture and imaging support meaningful blood-vessel compression and you can tolerate an operation inside the skull. Results are less predictable for predominantly continuous pain, and secondary causes require an individualized discussion. Age alone does not settle the choice; overall health, prior procedures, and your priorities matter.

Microvascular decompression: relieving pressure

With you asleep under general anesthesia, the surgeon makes an incision behind the ear and a small opening in the skull. The trigeminal nerve is examined near the brainstem. The responsible vessel is moved away, often using a small cushion or another method to keep it separated from the nerve.

MVD aims to preserve the nerve rather than intentionally injure it. It can offer durable relief in appropriately selected patients and is generally less likely than a nerve-damaging procedure to produce facial numbness. It requires hospital monitoring and a longer physical recovery than balloon compression. Johns Hopkins describes MVD selection and technique.

Balloon compression: interrupting pain signals

Under anesthesia, the surgeon passes a needle and thin tube through the cheek to the trigeminal nerve near the base of the skull, using imaging for guidance. A small balloon is briefly inflated to compress the nerve region, then removed. Nothing remains inflated in the face.

This controlled nerve injury can reduce attacks without an open skull operation. It may suit someone for whom MVD is less appropriate or who prefers a less extensive procedure after understanding sensory tradeoffs. An overnight stay may still be needed. The NHS explains balloon compression and related percutaneous procedures.

Key tradeoffs to weigh

A shorter procedure is not automatically the better long-term choice. Discuss how numbness, chewing function, anesthesia risk, and the possibility of another procedure would affect you.

Risks specific to each treatment

MVD risks include bleeding, infection, leakage of cerebrospinal fluid (the fluid surrounding the brain and spinal cord), hearing loss, facial weakness or numbness, balance problems, double vision, swallowing problems, stroke, and rare life-threatening complications. Either procedure can fail to relieve pain.

Balloon compression can cause cheek bruising, jaw muscle weakness, bothersome tingling or numbness, reduced eye sensation, or eye injury. Rarely, persistent painful numbness develops, called anesthesia dolorosa. Bleeding, infection, and anesthesia complications are also possible. Ask how prior procedures affect your risk. Royal College of Surgeons guidance reviews these treatment and sensory risks.

Alternatives and preparation

Other options include continuing or adjusting medication, stereotactic radiosurgery, and other needle-based nerve procedures. Radiosurgery has its own sensory risks and generally does not provide immediate relief. These are topics for individualized consultation, not a statement that every treatment is suitable or offered in this practice.

Bring a pain diary, medication doses and side effects, imaging, and details of prior dental and facial-pain procedures. Get written fasting and medication instructions, including a blood thinner plan. Do not stop trigeminal-pain medicines independently. Arrange a ride and support at home.

After treatment

The team will check pain, facial sensation, swallowing, and other nerve functions before discharge. MVD recovery includes wound care, fatigue management, and walking safety. After balloon compression, protecting numb skin and checking for cheek biting or eye changes are particularly important.

Pain relief does not mean you should suddenly stop medication. Obtain a written plan for any gradual changes. Call 911 for sudden facial droop or other sudden neurological changes, or a sudden severe headache. A red or blurred eye after a change in facial sensation needs urgent same-day assessment. CDC describes stroke warning signs that require immediate action. Read the paired recovery guide for separate MVD and balloon care and additional urgent symptoms.