How often is migraine a cause of secondary trigeminal neuralgia?

Migraine is the most common underlying cause of secondary trigeminal neuralgia. This is the finding of a 6-year retrospective study of patients attending a migraine clinic in Mexico presented at EAN 2020.

Trigeminal neuralgia (TN) can be classified by etiology as:

  • classical TN, with neurovascular contact on magnetic resonance imaging (MRI)
  • secondary TN due to underlying neurologic disease
  • idiopathic TN1,2

Migraine is the most common underlying cause of trigeminal neuralgia

Many underlying diseases cause secondary trigeminal neuralgia, but how often is it caused by migraine? To find out, Octavio Carranza, Vasco de Quiroga University, Mexico, carried out a retrospective review of all cases of TN seen in his clinic between January 2014 and December 2019.

A total of 1604 patients presented with TN and after magnetic resonance imaging, 1205 were diagnosed with classical TN, 147 with idiopathic TN, and 252 with secondary TN.

The patients with secondary TN were found to have 28 different underlying diseases causing TN. Most of these diseases (19) were diagnosed in six or fewer patients, with nine of the diseases being diagnosed only one patient.

Migraine was the most common underlying disease, occurring in 36 (16%) patients.

Epidermoid cyst and postherpetic neuralgia were the second and third most common diagnoses occurring in 12% and 10% of patients, respectively.

Our correspondent’s highlights from the symposium are meant as a fair representation of the scientific content presented. The views and opinions expressed on this page do not necessarily reflect those of Lundbeck.

  1. Bendtsen L, et al. Eur J Neurol. 2019;26:831–49.
  2. Cruccu G, et al. Neurology 2016;87:220–8.
Country selection
We are registering that you are located in Brazil - if that's correct then please continue to Progress in Mind Brazil
You are leaving Progress in Mind
Please confirm your email
We have just sent you an email, with a confirmation link.
Before you can gain full access - you need to confirm your email.
The information on this site is exclusively intented for health care professionals.
All the information included in the Website is related to products of the local market and, therefore, directed to health professionals legally authorized to prescribe or dispense medications with professional practice. The technical information of the drugs is provided merely informative, being the responsibility of the professionals authorized to prescribe drugs and decide, in each concrete case, the most appropriate treatment to the needs of the patient.
Register for access to Progress in Mind in your country