The information on this website is not intended for diagnosis or treatment. Please consult your physician for health concerns.

+90 850 321 50 00

Trigeminal Neuralgia

Severe Paroxysmal Facial Pain in Trigeminal Nerve Distribution with Carbamazepine Response

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Nöroloji department. Book Appointment →

What is Trigeminal Neuralgia?

Trigeminal neuralgia (TN), also known as tic douloureux, is a chronic neuropathic facial pain syndrome with annual incidence approximately 4–13 per 100,000.

ICHD-3 classification: classical TN (vascular compression of nerve root, 90% of cases), secondary TN (multiple sclerosis, tumor, vascular malformation), and idiopathic TN (no identifiable cause).

Pathophysiology: vascular compression by superior cerebellar artery or other vessels causes focal demyelination at the root entry zone, leading to ephaptic transmission and pain paroxysms.

Female predominance (female-to-male ratio approximately 3:2) with peak incidence in 50s and 60s, but can occur at any age.

Symptoms

Sudden, severe, brief (seconds to 2 minutes) electric shock-like, stabbing, or shooting facial pain
Pain in the distribution of trigeminal nerve branches: V2 (maxillary, most common), V3 (mandibular), V1 (ophthalmic, least common); often only one branch involved initially
Unilateral pain (>95%); bilateral involvement raises concern for secondary cause (especially multiple sclerosis)
Pain triggered by innocuous stimuli: light touch to face (washing, shaving, makeup), wind, cold air, chewing, brushing teeth, talking, smiling
Refractory periods (minutes to hours) between paroxysms; can have hundreds of attacks per day
Patient may avoid eating, drinking, or talking during exacerbations leading to weight loss and dehydration
Severe psychological distress, depression, anxiety, suicidal ideation in long-standing cases
Concomitant continuous background pain (TN type 2) in some patients

Risk Factors

Female sex (3:2 female-to-male ratio)
Age 50+ years (most cases); younger onset suggests secondary cause
Multiple sclerosis: 1–5% of MS patients develop TN; bilateral or atypical TN should prompt MS evaluation
Family history (rare familial cases linked to certain genetic syndromes)
Vascular abnormalities: arteriovenous malformations, aneurysms, vascular loops
Tumors compressing trigeminal nerve: schwannoma, meningioma, epidermoid, metastasis
Previous facial trauma, dental procedures (rare initiating events)
Differential considerations: dental pain, sinusitis, temporomandibular joint disorder, cluster headache, paroxysmal hemicrania, glossopharyngeal neuralgia, postherpetic neuralgia

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Sudden severe facial pain in trigeminal distribution
  • Recurrent stabbing facial pain not responding to standard analgesics
  • Bilateral facial pain or atypical features (consider MS or tumor)
  • Failure of medication therapy or significant side effects
  • Severe pain affecting eating, drinking, hygiene, or psychological state
  • Treatment refractory cases requiring surgical evaluation

Treatment Methods

01
Diagnostic evaluation: detailed pain history (character, location, triggers, frequency), neurological examination (sensory and motor function of face), differential diagnosis for facial pain
02
MRI brain with contrast and high-resolution sequences (FIESTA, CISS) at trigeminal nerve root entry zone: identifies vascular compression (95%), multiple sclerosis lesions, tumors, vascular abnormalities; standard for all suspected TN
03
Carbamazepine (first-line): start 100 mg twice daily, titrate to 600–1200 mg/day in divided doses; effective in 70–90% initially; monitor for side effects (sedation, dizziness, hyponatremia, leukopenia, Stevens-Johnson syndrome especially in HLA-B*15:02 positive Asian patients)
04
Oxcarbazepine: alternative with better tolerability; 600–1800 mg/day in divided doses; similar efficacy to carbamazepine with reduced drug interactions
05
Second-line medications: lamotrigine (titrated slowly to 200–400 mg/day), gabapentin (900–3600 mg/day), pregabalin (150–600 mg/day), baclofen (40–80 mg/day), phenytoin
06
Combination therapy may be required: carbamazepine plus baclofen or lamotrigine for partial responders
07
Microvascular decompression (Janetta procedure): gold-standard surgical treatment for classical TN with vascular compression on MRI; success rate 80–90% with 70% pain-free at 10 years; risks include hearing loss, facial numbness, CSF leak
08
Percutaneous procedures (rhizotomy): radiofrequency thermocoagulation, glycerol injection, balloon compression of trigeminal ganglion; success rate 70–85% with higher recurrence (30–50% at 5 years); useful for elderly or surgical risk patients; risk of facial numbness
09
Gamma knife radiosurgery: stereotactic radiation to trigeminal nerve root; success rate 60–80% with delayed onset of effect (weeks to months); useful for elderly or those refusing open surgery; risk of facial numbness
10
Multiple sclerosis-related TN: medical management as first line; surgical options have lower success rates; consider disease-modifying therapy for MS
11
Pain crisis management: hospitalization for IV phosphomyces or fosphenytoin loading dose; nerve block in select cases for acute control
12
Palliative measures during acute exacerbation: avoid trigger stimuli, soft diet, side-of-mouth eating, dental work deferral
13
Multidisciplinary care: neurology, neurosurgery, psychiatry, pain medicine, oral surgeon for differential evaluation
14
Long-term follow-up: medication efficacy and side effects, periodic reassessment of need for continued therapy, surgical considerations for refractory cases, psychological support, depression and anxiety screening

Which Department to Visit?

You can visit our Nöroloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Nöroloji Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

Book AppointmentContact Us

Related Health Topics

Other articles from the same department you may want to explore.

Trigeminal Neuralgia

Nöroloji

Trigeminal neuralgia causes sudden electric-shock-like facial pain in the distribution of the fifth cranial nerve; carbamazepine and oxcarbazepine remain first-line, with surgery for refractory cases.

Headache and Migraine

Nöroloji

What you need to know about headache types, migraine attacks, and triggering factors.

Low Back Pain

Nöroloji

Learn about the most common causes of low back pain, risk factors, and appropriate treatment approaches.

Neck Pain and Cervical Disc Herniation

Nöroloji

Learn about the symptoms and treatment options for cervical disc herniation and problems in the neck region.

Epilepsy

Nöroloji

Accurate information about epilepsy, types of seizures, and recommendations for patients and families.

Parkinson Disease

Nöroloji

Parkinson disease is caused by progressive degeneration of dopaminergic neurons and alpha-synuclein accumulation; well-timed therapy substantially improves function and quality of life.

Alzheimer's Disease and Dementia

Nöroloji

Information about early signs, diagnosis, and the care process for Alzheimer's and other types of dementia.

Multiple Sclerosis (MS)

Nöroloji

What is multiple sclerosis, who is at risk, and which treatments are applied?

Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.