cqvip:Background. -Recurrent or chronic facial pain may be a diagnostic challenge. Applying the diagnostic criteria of the second edition of the International Classification of Headache Disorders (ICHD-II) leaves a considerable number of patients unclassifiable. Objective. -The aim of this study was to establish and evaluate revised criteria of trigeminal neuralgia and persistent idiopathic facial pain. Methods. -Based on the diagnostic value of 12 clinical features of trigeminal neuralgia and 15 features of persistent idiopathic facial in 97 patients referred for facial pain to a neurological tertiary care centre we established revised criteria for persistent idiopathic facial pain and additional criteria for probable trigeminal neuralgia and probable idiopathic facial pain. Results. -Applying the newly proposed criteria reduced the number of patients with facial pain not classifiable by more than 50%. The new criteria improved the sensitivity, particularly in idiopathic facial pain and did not cause a relevant decrease in specificity compared to ICHD-II. Conclusion. -This study suggests that amendments to the ICHD-II criteria improve the diagnostic classification of facial pain.
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