An unusual case of paroxysmal facial pain
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Summary
Paroxysmal facial pain is a rare sequel to brainstem infarction. This is a report of a patient who developed paroxysmal facial pain with the exceptional features of a trigger zone and relative refractory pain-free periods in an area previously anesthetic after infarction of the brainstem. The facial pain responded favorably to carbamazepine. The characteristic of this patient's pain is compared with the pain of trigeminal neuralgia and possible similar pathogenetic mechanisms.
Key words
Trigeminal neuralgia Pain Brainstem infarctionZusammenfassung
Anfallsartige Gesichtsschmerzen stellen eine seltene Folge eines Hirnstamminsultes dar. Es wird ein Patient beschrieben, bei welchem sich in einem Bereiche, welcher infolge eines Hirnstamminfarktes zunächst anästhetisch war, ein paroxysmaler Gesichtsschmerz entwickelt. Dieser war von einer Triggerzone aus auslösbar, und es bestand anschließend eine auf Schmerzen refraktäre Periode. Der Schmerz sprach günstig auf Carbamazepin an. Die Charakteristika dieses Falles werden mit den Gesichtsschmerzen der Trigeminusneuralgie verglichen, und es werden die pathogenetischen Mechanismen besprochen.
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References
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