Martinho Pimenta A J, Castelo Branco N A
Santo António dos Capuchos Hospital, Lisbon, Portugal.
Aviat Space Environ Med. 1999 Mar;70(3 Pt 2):A122-7.
Late-onset epilepsy was one of the first neurological problems identified in patients diagnosed with vibroacoustic disease. Other clinical situations, such as automatisms and rage-like reaction crises were also observed. Some cases of epileptic seizures were triggered by different types of stimuli.
This study describes the clinical case of a 30-yr-old male metal-worker who had epileptic seizures when he used vibratory tools common to his profession, such as drills and sanders. We performed a 21-channel EEG during a seizure induced in the laboratory by direct contact of a vibratory tool with his right hand. This allowed us to view the electrical discharge of his left hemisphere. The entire procedure was simultaneously videotaped while a partial motor crisis was observed. Brain MRI of this subject revealed multiple hyperintense focal lesions in the sub-cortical white matter. Echocardiography revealed thickening of the pericardium and valve structures.
To the authors' knowledge, this is the first documented case of reflex epilepsy due to vibratory stimuli. We briefly discuss the possible pathophysiological mechanisms of this clinical event.
迟发性癫痫是在被诊断患有振动声学疾病的患者中最早发现的神经问题之一。还观察到了其他临床情况，如自动症和类似愤怒的反应性危机。一些癫痫发作病例是由不同类型的刺激引发的。
本研究描述了一名30岁男性金属工人的临床病例，他在使用其职业中常见的振动工具（如钻机和砂光机）时会癫痫发作。在实验室中，通过将振动工具直接接触其右手诱发癫痫发作期间，我们进行了21通道脑电图检查。这使我们能够观察到其左半球的放电情况。在观察到部分运动性危机的同时，整个过程被同步录像。该受试者的脑部磁共振成像显示皮质下白质有多个高信号局灶性病变。超声心动图显示心包和瓣膜结构增厚。
据作者所知，这是第一例有记录的因振动刺激导致的反射性癫痫病例。我们简要讨论了这一临床事件可能的病理生理机制。
