2006
DOI: 10.1007/s00234-006-0150-8
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Persistent trigeminal artery associated with trigeminal neuralgia: hypothesis of neurovascular compression

Abstract: Previous studies have shown PTA as an incidental finding in 0.1-0.6% of cerebral angiograms. The prevalence of a PTA in patients with TN was 2.2%. With respect to the clinical significance, a PTA has to be considered in TN and the diagnosis of a PTA can easily be made using MR imaging/angiography.

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Cited by 44 publications
(33 citation statements)
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“…4 The embryonic trigeminal artery has been suggested to cause tic douloreux. [10][11][12][13][14] As a remnant of the embryonic trigeminal artery, the TCA can be considered as a potential source of compression to the trigeminal nerve roots. In almost every case in our study, the artery coursed very closely to the nerve root entry zones; making loops, encircling or sometimes contacting the nerve.…”
Section: Discussionmentioning
confidence: 99%
“…4 The embryonic trigeminal artery has been suggested to cause tic douloreux. [10][11][12][13][14] As a remnant of the embryonic trigeminal artery, the TCA can be considered as a potential source of compression to the trigeminal nerve roots. In almost every case in our study, the artery coursed very closely to the nerve root entry zones; making loops, encircling or sometimes contacting the nerve.…”
Section: Discussionmentioning
confidence: 99%
“…[13] Neuroradiological Evaluation Bondt et al, evaluated 288 patients with magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) for trigeminal deÞ cits and found that 28.5% of patients had neurovascular compression and 60.2% of patients had normal neuroradiological Þ ndings. [24] But the detection of these abnormalities is highly dependent on the MRI resolution. Using a higher resolution, venous or arterial compression can be differentiated, which may help in predicting the recurrence of TN following MVD.…”
Section: Etiologymentioning
confidence: 99%
“…6,29,30 Rarely, the conflicting vessel is a petrous vein, a saccular aneurysm, a persistent trigeminal artery, or an AVM. 31,32 Recently, it has been shown that the size of the cerebellopontine cistern, as measured with MR imaging, may play a role in favoring a neurovascular conflict, because a significantly smaller volume of the cistern was found in patients who had TN on the affected side. 33 Because contact between the cisternal portion of the trigeminal nerve and a blood vessel may also be seen in asymptomatic patients, the diagnosis of a neurovascular conflict should only be made at MR imaging with caution.…”
Section: Vascular Lesionsmentioning
confidence: 99%