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J Affect Disord. 2005 Apr;85(3):293-9.

Diagnostic stability in bipolar disorder in clinical practise as according to ICD-10.

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  • 1Department of Psychiatry, University of Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9 DK 2100 Copenhagen Ø, Denmark. lars.kessing@rh.dk

Abstract

BACKGROUND:

The diagnostic stability of the ICD-10 diagnosis of mania/bipolar disorder has not been investigated in clinical practice.

METHODS:

All patients who got a diagnosis of mania/bipolar disorder at least once in a period from 1994 to 2002 at outpatient treatment or at discharge from psychiatric hospitalisation in Denmark were identified in a nationwide register.

RESULTS:

Totally, 4116 patients got a diagnosis of mania/bipolar disorder at least once; among these, 2315 patients (56.2%) got the diagnosis at the first contact, whereas the remaining patients (43.8%) got the diagnosis at later contacts. Approximately 30% of patients with an initial diagnosis of mania/bipolar disorder eventually changed diagnosis during follow-up. A substantial proportion of patients initially presented with prodromal syndromes such as transient psychosis, reaction to stress/adjustment disorder or mental and behavioural disorder due to psychoactive substance use and got a diagnosis of bipolar disorder later on. Especially younger but also female patients were at increased risk of delay of the diagnosis of bipolar disorder.

LIMITATIONS:

Only patients from psychiatric settings were included.

CONCLUSIONS:

Clinicians should, especially in younger and female patients, be more observant on manic symptoms in patients who as first glance presents with transient psychosis, reaction to stress/adjustment disorder or with psychoactive substance abuse and follow these patients more closely over time identifying putable hypomanic and manic symptoms as early as possible.

PMID:
15780699
[PubMed - indexed for MEDLINE]
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