有一位患动脉硬化的老人,每天都早起锻炼身体。由于近来经常感到头晕,便晃动和摇摆颈部想使头脑清醒。结果事与愿违,头晕更加明显,甚至在活动颈部时还常常出现眼前发黑的现象。实际上,老人的这些症状是大脑供血不足所致,而活动颈部使大脑缺血更加严重,甚至影响到了眼睛的血液供应,出现眼前发黑和暂时性视力障碍等症状。令人悲哀的是,这位老人并不知道剧烈颈部活动的危害,继续剧烈地活动颈部,结果老人的症状越发严重,一周之内发生了偏瘫。后经 CT 检查证实,老人颈动脉硬 There is an elderly person suffering from arteriosclerosis, getting up early every day to exercise. Due to the recent dizziness, I shake and swing my neck to make my head clear. The result was contrary to expectations, dizziness even more apparent, even in the activities of the neck often appear black and white phenomenon. In fact, these symptoms of the elderly are caused by insufficient blood supply to the brain, and the active neck causes more severe brain ischemia and even affects the blood supply to the eyes, resulting in immediate blackouts and temporary visual impairment. Sadly, the old man did not know the dangers of violent neck movements and continued to exercise his neck violently. As a result, the symptoms of the elderly became more and more serious and hemiplegia developed within a week. After confirmed by CT examination, the elderly carotid artery