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Rapid antidepressant effect of S-ketamine in schizophrenia.

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Abstract

Rapid anti-suicidal and antidepressant effects of ketamine have repeatedly been confirmed in unipolar and bipolar depression. Although meaningful antidepressant efficacy of ketamine has also been shown in depressed patients with a history of psychotic symptoms, its administration in psychotic disorders has largely been neglected due to its potential to exacerbate dissociative or psychotic symptoms. Presenting a case of a young female inpatient suffering from schizophrenia with a severe post-psychotic depression, we demonstrate a robust anti-suicidal and antidepressant effect of S-ketamine infusions administered thrice weekly for 3 weeks in total. Importantly, no relevant psychotic or dissociative symptoms occurred during the whole augmentation treatment period leading to a sustained remission of depressive symptoms and suicidality. Our safe and effective experience with intravenous S-ketamine might encourage researchers and clinicians to widen its administration range beyond the diagnosis of depression to enrich the current knowledge of ketamine effects in psychotic disorders.
Bartova, L., Papageorgiou, K., Milenkovic, I., Dold, M., Weidenauer, A., Willeit, M., … & Kasper, S. (2018). Rapid antidepressant effect of S-ketamine in schizophrenia. European Neuropsychopharmacology28(8), 980-982., 10.1016/j.euroneuro.2018.05.007
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