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KMID : 0363120070200020174
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Korean Journal of Pain
2007 Volume.20 No. 2 p.174 ~ p.180
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Clinical Features of Trigeminal Neuralgia
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Han Kyung-Ream
Kim Yeui-Seok
Kim Chan
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Abstract
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Background: The diagnosis of trigeminal neuralgia (TN) is based on only clinical criteria. The purpose of this study was to estimate the clinical manifestations of TN patients treated at our pain clinic.
Methods: A total of 341 patients with TN from Jan. 2004 to Dec. 2006 was evaluated the intensity, site, and onset of pain, facial sensation, duration of pain attack, pain free interval, triggering factors, and effects of the previous treatments with TN specific questionnaire and interview at the first visit of our pain clinic.
Results: About 80% of the patients were over 50 years of age and 256 (75%) patients were women. Average durations from first attack of their pain and from current pain attack were 7 years and 16 weeks, respectively. The two most frequently involved trigeminal nerve branches were maxillary (40%) and mandibular (39%) branches. Three quarters of the total patients experienced only paroxysmal pain that lasted less than one minute. About 90% of patients had pain free period at least one time. Most common triggering factors were chewing (88%), brushing teeth (82%), washing face (79%), and talking (70%). Only 16 patients (5%) had no previous treatment and the others had more than one treatment, such as medication (68%) and interventional procedures (35%). The most common reasons for early discontinuation of carbamazepine were dizziness, ataxia, and vomiting.
Conclusion: TN has specific clinical features of pain, which should be considered at diagnosis. (Korean J Pain 2007; 20: 174-180)
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KEYWORD
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carbamazepine, clinical feature, facial pain, trigeminal neuralgia, triggering factor
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