Horizontal gaze-evoked nystagmus in pontine gaze palsy: patterns and anatomical correlates.

ABSTRACT:

Background

To delineate the patterns and anatomical correlates of gaze-evoked nystagmus (GEN) in horizontal gaze palsy due to dorsal pontine lesions.

Methods

A total of 17 patients with horizontal gaze palsy and unilateral dorsal pontine lesions were retrospectively recruited from referral-based six university hospitals in Korea. The clinical characteristics, oculographic data, and MRI lesions of the patients were subjected to analysis.

Results

Patients had complete (n = 10, 60%) or partial (n = 7, 40%) horizontal gaze palsy. Ten patients (60%) showed contralesional horizontal-torsional spontaneous nystagmus. Horizontal GEN was identified in 14 of the 17 patients (82%), which was contralesional (n = 8, 57%), bilateral (n = 5, 36%), and ipsilesiona

SUBMITTER: Choi SY 

PROVIDER: S-EPMC12286784 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature