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Quantitative EEG findings in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department

Bjørk, Marte Helene; Sand, Trond; Bråthen, Geir; Linaker, Olav Morten; Morken, Gunnar; Nilsen, Brigt; Vaaler, Arne
Journal article, Peer reviewed
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1471-244X-8-89.pdf (282.2Kb)
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http://hdl.handle.net/11250/302339
Utgivelsesdato
2008
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  • Publikasjoner fra CRIStin - NTNU [7701]
Originalversjon
BMC Psychiatry 2008, 8(89)   10.1186/1471-244X-8-89
Sammendrag
Background: Patients with brief depressive episodes and concurrent rapidly fluctuating

psychiatric symptoms do not fit current diagnostic criteria and they can be difficult to diagnose and

treat in an acute psychiatric setting. We wanted to study whether these patients had signs of more

epileptic or organic brain dysfunction than patients with depression without additional

symptomatology.

Methods: Sixteen acutely admitted patients diagnosed with a brief depressive episode as well as

another concurrent psychiatric diagnosis were included. Sixteen patients with major depression

served as controls. Three electroencephalographic studies (EEG) were visually interpreted and the

background activity was also analysed with quantitative electroencephalography (QEEG).

Results: The group with brief depression and concurrent symptoms had multiple abnormal

features in their standard EEG compared to patients with major depression, but they did not show

significantly more epileptiform activity. They also had significantly higher temporal QEEG delta

amplitude and interhemispheric temporal delta asymmetry.

Conclusion: Organic brain dysfunction may be involved in the pathogenesis of patients with brief

depressive episodes mixed with rapidly fluctuating psychiatric symptoms. This subgroup of

depressed patients should be investigated further in order to clarify the pathophysiology and to

establish the optimal evaluation scheme and treatment in an acute psychiatric setting.
Utgiver
BioMed Central
Tidsskrift
BMC Psychiatry

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