PDF(Pubmed)
Abstract：
UNASSIGNED: Radiographic horizontal gaze deviation (RHGD) has been identified as a useful finding on computed tomography (CT) that indicates the affected side in supratentorial ischemic stroke; however, it remains unclear whether RHGD is essentially the same phenomenon as physical horizontal gaze deviation (PHGD). To resolve the issue, this study was conducted.
UNASSIGNED: Retrospective analyses were performed for 671 patients with ischemic stroke and 142 controls who were hospitalized and underwent head CT. First, clinical findings were examined to find differences between RHGD-positive and RHGD-negative patients. Second, patients were classified by their stroke mechanisms and/or affected vascular territories. For each subgroup, RHGD was compared with PHGD in frequency. Third, the proportions for patients divided by positivity for PHGD and RHGD were calculated in the subgroups.
UNASSIGNED: Patients with RHGD had PHGD more often than those without. In all stroke subgroups, RHGD was more frequent than PHGD. The frequency difference was prominent in small-artery occlusion (SAO) and posterior inferior cerebellar artery (PICA) stroke. In SAO of the basilar artery pontine perforator, RHGD was positive in 25% and largely contralesionally-directed. In PICA stroke, lesions in the vestibulocerebellum were associated with contralesional RHGD. Moreover, lesions in the lateral medulla also caused RHGD, which was mainly directed to the ipsilesional side. PHGD-positive stroke without RHGD was infrequent, whereas RHGD-positive stroke without PHGD was commonly observed (PICA stroke, 45.9%; other subgroups, 21.1%-27.5%).
UNASSIGNED: RHGD had different characteristics from PHGD; therefore, assessments of both PHGD and RHGD may lead to more accurate diagnoses.
UNASSIGNED: Retrospective analyses were performed for 671 patients with ischemic stroke and 142 controls who were hospitalized and underwent head CT. First, clinical findings were examined to find differences between RHGD-positive and RHGD-negative patients. Second, patients were classified by their stroke mechanisms and/or affected vascular territories. For each subgroup, RHGD was compared with PHGD in frequency. Third, the proportions for patients divided by positivity for PHGD and RHGD were calculated in the subgroups.
UNASSIGNED: Patients with RHGD had PHGD more often than those without. In all stroke subgroups, RHGD was more frequent than PHGD. The frequency difference was prominent in small-artery occlusion (SAO) and posterior inferior cerebellar artery (PICA) stroke. In SAO of the basilar artery pontine perforator, RHGD was positive in 25% and largely contralesionally-directed. In PICA stroke, lesions in the vestibulocerebellum were associated with contralesional RHGD. Moreover, lesions in the lateral medulla also caused RHGD, which was mainly directed to the ipsilesional side. PHGD-positive stroke without RHGD was infrequent, whereas RHGD-positive stroke without PHGD was commonly observed (PICA stroke, 45.9%; other subgroups, 21.1%-27.5%).
UNASSIGNED: RHGD had different characteristics from PHGD; therefore, assessments of both PHGD and RHGD may lead to more accurate diagnoses.
摘要：
■射线照相水平凝视偏差（RHGD）已被确定为计算机断层扫描（CT）的有用发现，表明幕上缺血性中风的受影响侧；但是，目前尚不清楚RHGD是否与身体水平凝视偏离(PHGD)的现象基本相同.要解决问题,进行了这项研究。
■对671例缺血性卒中患者和142例住院并接受头颅CT检查的对照组进行回顾性分析。首先,我们检查了RHGD阳性和RHGD阴性患者的临床结果,以发现RHGD阳性和RHGD阴性患者之间的差异.第二,根据卒中机制和/或受影响的血管区域对患者进行分类.对于每个子组，将RHGD与PHGD的频率进行比较。第三，在各亚组中计算患者的比例除以PHGD和RHGD阳性.
■有RHGD的患者比没有RHGD的患者更常见。在所有中风亚组中，RHGD比PHGD更频繁。在小动脉闭塞（SAO）和小脑后下动脉（PICA）中风中，频率差异显着。在基底动脉脑桥穿孔器的SAO中，RHGD在25％的患者中呈阳性，并且在很大程度上是相反方向的。在PICA中风中，前庭小脑的病变与对照性RHGD相关。此外，延髓外侧的病变也引起了RHGD，主要是针对同病方面。无RHGD的PHGD阳性卒中很少见，而通常观察到RHGD阳性卒中而没有PHGD(PICA卒中，45.9%；其他亚组，21.1%-27.5%）。
■RHGD具有与PHGD不同的特性；因此，对PHGD和RHGD的评估可能会导致更准确的诊断。
■对671例缺血性卒中患者和142例住院并接受头颅CT检查的对照组进行回顾性分析。首先,我们检查了RHGD阳性和RHGD阴性患者的临床结果,以发现RHGD阳性和RHGD阴性患者之间的差异.第二,根据卒中机制和/或受影响的血管区域对患者进行分类.对于每个子组，将RHGD与PHGD的频率进行比较。第三，在各亚组中计算患者的比例除以PHGD和RHGD阳性.
■有RHGD的患者比没有RHGD的患者更常见。在所有中风亚组中，RHGD比PHGD更频繁。在小动脉闭塞（SAO）和小脑后下动脉（PICA）中风中，频率差异显着。在基底动脉脑桥穿孔器的SAO中，RHGD在25％的患者中呈阳性，并且在很大程度上是相反方向的。在PICA中风中，前庭小脑的病变与对照性RHGD相关。此外，延髓外侧的病变也引起了RHGD，主要是针对同病方面。无RHGD的PHGD阳性卒中很少见，而通常观察到RHGD阳性卒中而没有PHGD(PICA卒中，45.9%；其他亚组，21.1%-27.5%）。
■RHGD具有与PHGD不同的特性；因此，对PHGD和RHGD的评估可能会导致更准确的诊断。
