Clinical Presentation and Diagnosis of Trigeminal Neuralgia
Trigeminal neuralgia (TGN) is defined by the International Association for the Study of Pain (IASP) as “unilateral painful orofacial condition characterised by brief duration of electric shock-like sensation with an abrupt onset and termination, and limited to one or more sensory divisions of the trigeminal nerve”. The pain may arise spontaneously, or may be triggered by innocuous mechanical stimuli and movement . The International Headache Society (IHS) has described TGN more elaborately, and has suggested clinical criteria for the diagnosis of TGN. According to these suggestions, TGN is a medical condition characterized by paroxysmal attacks of sudden-onset, severe, shock-like, recurrent pain, along the distribution of one or more branches of the trigeminal nerve [2, 3].
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