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A Korczyn

Publications and source records attributed to A Korczyn.

At least 19 recordsLinked to original sources

[Vagus nerve stimulation for partial seizures].

Cerebellar and thalamic stimulation has been known for many years to improve control of epileptic seizures. In the past few years electrical vagus nerve stimulation (VNS) has been introduced and has been effective in controlling seizures in animal models. These encouraging results led to the development of a transcutaneous programmable pulse generator and electrode lead for human use. 2 pilot studies and a multicenter, prospectively-randomized, parallel, double-blind study of patients with refractory partial seizures were performed. In a 3-22 month follow-up, in about 50% of patients seizures were reduced by 30-50%. There were no significant complications of the implant. Side-effects associated with VNS included intermittent hoarseness, coughing and throat pain. Additional controlled clinical trials with many patients and long follow-up are needed. We report 2 patients, the first in Israel, who underwent VNS.

Double-Blind Method

Saccadic responses in patients with hemispheric stroke.

Saccadic characteristics were examined in 15 patients with unilateral hemispheric stroke. Eye movements were measured by a standard electro-oculogram technique. In patients with cortical infarcts, mean gain values were lower than in the control subjects for eye movements directed away from the infarct (contralateral), but higher for eye movements towards the infarct (ipsilateral) (p < 0.025). We suggest that impairment of efferent neural signals from the affected hemisphere of stroke patients may decrease excitation of the contralateral neural circuits and inhibition of the ipsilateral neural circuits of the brainstem saccade generator.

Adult

[Dopamine].

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Dopamine