孤立性眩晕本质虽良性，但要与较常见的周围性眩晕区别则不易。Grad等（1989）谓有时孤立性眩晕可能为推基底动脉分布区域中风的预兆。该文病例为50岁女性伴高血压，突发眩晕，有跳动性水平型及旋转型限震，向右凝视时增强，无垂直性服震，听力及神经学检查正常。6小时后听脑干 Although the nature of isolated vertigo is benign, it is not easy to distinguish from the more common peripheral vertigo. Grad et al. (1989) reported that sometimes isolated vertigo may be a sign of stroke in the region of the basilar artery. The case was a 50-year-old female with hypertension, sudden dizziness, beating horizontal and rotary shock-limited, enhanced when staring right, without vertical service shock, normal hearing and neurological examination. Listen to brain stem after 6 hours