关键词: 眩晕, 后循环缺血, 视频眼震电图, 诊断, 应用价值

Abstract:

Objective　To study the value of video electronystagmogram in the diagnosis of postcirculation ischemic vertigo (PCIV). Methods　A total of 240 patients with PCIV treated at Yulin Xingyuan Hospital from August 2020 to August 2023 were selected as a PCIV group, including 132 males and 108 females who were (61.37±10.36) years old. Another 80 healthy volunteers during the same period were selected as a healthy group, including 47 males and 33 females who were (61.45±10.49) years old. Both groups were examined by video electronystagmus. The incidences of the abnormalities of spontaneous nystagmus, saccade test, follow-up test, visual motor test, and position test were compared between the two groups by χ² test. Results　The incidence rate of spontaneous nystagmus in the PCIV group was lower than that in the healthy group [8.75% (21/240) vs. 3.75% (3/80)], with a statistical difference between the two groups (P>0.05). In the saccade test, the incidence rates of low peak velocity, long latency, low precision, undershoot, and overshoot in the PCIV group were higher than those in the control group [12.50% (30/240) vs. 1.25% (1/80), 33.75% (81/240) vs. 3.75% (3/80), 26.25% (63/240) vs. 5.00% (4/80), 36.25% (87/240) vs. 6.25% (5/80), and 13.75% (33/240) vs. 2.50% (2/80)], with statistical differences between the two groups (all P<0.05). The abnormal rates of follow-up test, visual motor test, and position test in the PCIV group were higher than those in the healthy group [48.75% (117/240) vs. 3.75% (3/80), 68.75% (165/240) vs. 17.50% (14/80), and 73.75% (177/240) vs. 27.50% (22/80)], with statistical differences between the two groups (all P<0.05). Conclusion　Video electronystagmogram plays an auxiliary role in the diagnosis of PCIV.

Key words: Vertigo,  , Post circulation ischemic,  , Video electronystagmogram,  , Diagnosis,  , Application value