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Stability of the diagnosis of first-episode drug-induced psychosis

  • Aravind Komuravelli (a1), Rob Poole (a2) (a3) and Robert Higgo (a4)
Abstract
Aims and method

To assess the stability of the diagnosis of first-episode drug-induced psychosis over a follow-up period of at least 2 years. Patients with no psychiatric history who had been discharged from in-patient care between January 2002 and April 2006 with a firm diagnosis of drug-induced psychosis were identified. Follow-up information for at least the next 2 years or until discharge from mental health services was collected retrospectively from psychiatric records.

Results

Nearly all of the patients who remained under psychiatric follow-up had a change in diagnosis, most commonly to a schizophreniform disorder. Those who were retained in follow-up had significantly longer index admissions than those discharged to primary care (P = 0.05).

Clinical implications

This study suggests that many individuals diagnosed with drug-induced psychosis are further diagnosed as having a functional psychosis, usually schizophreniform in nature. This is compatible with the suggestion that individuals diagnosed with drug-induced psychosis are experiencing either the effects of drug intoxication or an ordinary functional psychosis complicated by incidental drug use.

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Copyright
This is an Open Access article, distributed under the terms of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Corresponding author
Aravind Komuravelli (aravind.komuravelli@5bp.nhs.uk)
Footnotes
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Declaration of interest

None.

Footnotes
References
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Stability of the diagnosis of first-episode drug-induced psychosis

  • Aravind Komuravelli (a1), Rob Poole (a2) (a3) and Robert Higgo (a4)
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