Identifying "paradigm failures" contributing to treatment-resistant depression.
BACKGROUND
"Treatment resistant depression" is likely to emerge from a number of factors, including application of the wrong diagnostic and treatment models.


METHODS
Current paradigms for managing both depression and treatment resistant depression are considered. We then examine the prevalence of a set of paradigm failures that appeared to contribute to treatment resistant depression in outpatients of a tertiary referral Mood Disorders Unit.


RESULTS
Six illustrative paradigm failures are described and their frequencies within the clinical sample reported. Identified paradigm failures were diagnosing and/or managing a non-melancholic condition as if it were melancholic depression, failure to diagnose and manage bipolar disorder, psychotic depression or melancholic depression, misdiagnosing secondary depression and failure to identify organic determinants.


CONCLUSIONS
We suggest that the identification of such "paradigm failures"--and of others that can be assumed to operate--has the potential to enrich the assessment and management of depressed patients, and reduce the prevalence of treatment resistance.
Parker
G B
GB
School of Psychiatry, University of New South Wales and Black Dog Institute, Prince of Wales Hospital, Randwick 2031, Sydney, Australia. g.parker@unsw.edu.au
Malhi
G S
GS
Crawford
J G
JG
Thase
M E
ME
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000928:Antidepressive Agents / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D003865:Major Depressive Disorder / Q000188:drug therapy / Q000523:psychology / Q000628:therapy*; D004351:Drug Resistance; D004359:Drug Therapy, Combination; D004565:Electroconvulsive Therapy; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017211:Treatment Failure
D000928:Antidepressive Agents