OCULOPALATAL MYOCLONUS AFTER THE 1-1 2 SYNDROME WITH FACIAL-NERVE PALSY/

Purpose: The one-and-a-half syndrome is an eye movement disorder chara cterized by a unilateral gaze palsy and an ipsilateral internuclear op hthalmoplegia. The authors describe a previously unrecognized associat ion between the one-and-a-half syndrome and oculopalatal myoclonus (OP M). Methods: Five clinical cases are presented, with pertinent physica l findings and radiologic studies. Results: A previously unrecognized association of the one-and-a-half syndrome with subsequent development of OPM appears to exist. Involvement of the facial nerve in patients with the one-and-a-half syndrome may be a predictor of the subsequent development of OPM. Conclusion: Patients with the one-and-a-half syndr ome and facial nerve palsy should be followed closely for possible fut ure development of OPM.