The radiologic assessment of trigeminal neuropathy

Abstract

nerve V symptoms and positive CT and/or MR studies were reviewed. The principal purpose of this study was to (1) determine the efficacy of clinical localization,compare CT and MR for cranial nerve V imaging, (3) establish the most efficient MR imaging protocol, and (4) construct a differential diagnosis for lesions of cranial nerve V by anatomic segment.

Physical and psychological distress - trigeminal neuralgia: A case report

“…Hutchins et al suggested radiographic evaluation in patients with TN using CT and MRI to analyze the proximal and distal zone and the trajectories of the V cranial nerve. [7,11] Vascular compression is being demonstrated as one of the causes radiologically in patients with TN. Studies were conducted where radiologists were blinded to the affected side, and the results in terms of predicting subsequent surgical findings and response to surgery were excellent.…”

“…Its mechanism of action is neuronal excitability depression, blocks Na + channels, thereby leading to a selective reduction in the ectopic neural discharges that are responsible for the pain. [11] This drug is used for therapeutic diagnosis of TN. Usually, we start with low dose and gradually increase the dosage.…”

“…[11] Other drugs such as pimozide, sodium valproate, and clonazepam are also used. Clonazepam 0.5 mg t.i.d is preferred dosage.…”

“…For these patients, surgical procedures are carried out. [11] Cryotherapy, alcohol or anesthetic injection, or neurectomy will help in attaining peripheral block of trigeminal branches. Cryotherapy when performed leads to necrosis of the affected nerve branch.…”

“…This method initially gives good results but has higher recurrence rate. [11,14] Peripheral blocks of the trigeminal ganglion are attained using alcohol injections. However, it can lead to adverse reactions such as dysesthesia and anesthesia dolorosa which are unpredictable, and the patient attains relief for short duration only.…”