Petrova Dorina
Department of Neurology and Neurootology, National Transport Hospital Tzar Boris III, Sofia, Bulgaria.
Int Tinnitus J. 2005;11(2):177-80.
The aim of this investigation was to view characteristics of vestibular nystagmus (spontaneous, latent, and positional) through Frenzel's spectacles in patients with asymptomatic cerebrovascular disease (ACVD), with the intent of providing an early diagnosis and appropriate prophylaxis. We examined a total of 228 men (mean age, 48.04 +/- 7.8 years), a mean group of 150 men with proven asymptomatic cerebrovascular disease, and 78 clinically healthy men. Vestibular nystagmus was investigated through Frenzel's spectacles. The following characteristics (qualitative and quantitative) were studied: degree and direction form, association, continuity, frequency, and amplitude. It was found that in patients with proven ACVD, latent nystagmus is prevalent. The symptom of positional nystagmus is much more frequent than that of spontaneous nystagmus and is often the first objective symptom of initial disturbances of the cerebral blood flow in the region of the vertebrobasilar system. The vestibular system is mainly labyrinthine in origin, becoming later of central origin.
本研究的目的是通过Frenzel眼镜观察无症状脑血管疾病（ACVD）患者的前庭眼震（自发性、潜伏性和位置性）特征，以期提供早期诊断和适当的预防措施。我们共检查了228名男性（平均年龄48.04±7.8岁），其中平均有150名经证实患有无症状脑血管疾病的男性，以及78名临床健康的男性。通过Frenzel眼镜对前庭眼震进行研究。研究了以下特征（定性和定量）：程度和方向形式、关联性、连续性、频率和幅度。结果发现，在经证实患有ACVD的患者中，潜伏性眼震较为普遍。位置性眼震症状比自发性眼震症状更为常见，且常常是椎基底动脉系统区域脑血流初始紊乱的首个客观症状。前庭系统主要起源于迷路，后来变为中枢起源。
