Changes in serum prolactin after electroconvulsive and epileptic seizures

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Abstract
Serial serum prolactin (PRL) concentrations were measured after epileptic seizures and seizures following electroconvulsive therapy (ECT). There was a large and rapid rise in PRL after ECT seizures but a much more variable PRL response after spontaneous seizures. Only epileptic seizures of longer duration and of grand mal character resulted in a more substantial rise in PRL. In ECT seizures there was a significant positive correlation between the duration of seizures and the rise in postictal PRL. The postictal PRL curves over 24h were similar in both spontaneous seizures and ECT seizures. Interictally there were no differences in PRL levels between epileptic patients compared to patients with other neurological diseases or healthy volunteers. Chronic treatment with drugs affecting dopamine transmission had a profound effect on PRL secretion, and a dose-dependent significant increase in PRL with neuroleptics was observed.

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