Resumen

SEVERICHE BUENO, Diego et al. One and half syndrome after ischemic vertebrobasilar stroke. Acta Neurol Colomb. [online]. 2015, vol.31, n.2, pp.190-194. ISSN 0120-8748.  https://doi.org/10.22379/2422402227.

The One and a Half Syndrome is a condition characterized by paralysis of the horizontal conjugate gaze and a ipsilateral internuclear ophthalmoplegia secondary to other processes such as a stroke. We describe two cases of patients that had hemiparesis, inability to perform horizontal movements in one eye and forced abduction of the contralateral eye with inability to adduct it. With the corresponding study of both cases it was possible to diagnose a vertebrobasilar ischemic stroke as the origin of the syndrome; the recognition and understanding of the physiology of the conjugate gaze is crucial in the approach of the patients and allow an accurate diagnosis using a detailed history and a thorough physical evaluation.

Palabras clave : One and a half síndrome; Vertebrobasilar Stroke; Medial longitudinal Fasciculus.

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