RESEARCH ARTICLE
Current Nosology of Treatment Resistant Depression: A Controversy Resistant to Revision
Michele Fornaro1, *, Patricia Giosuè2
Article Information
Identifiers and Pagination:
Year: 2010Volume: 6
First Page: 20
Last Page: 24
Publisher ID: CPEMH-6-20
DOI: 10.2174/1745017901006010020
Article History:
Received Date: 16/1/2010Revision Received Date: 11/3/2010
Acceptance Date: 14/3/2010
Electronic publication date: 4/5/2010
Collection year: 2010

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Abstract
Treatment-Resistant Depression (TRD) represents a source of ongoing clinical and nosological controversy and confusion. While no univocal consensus on its definition and specific correlation with major mood disorders has been reached to date, a progressively greater number of evidences tend to suggest a revision of current clinical nosology. Since a better assessment of TRD should be considered mandatory in order to achieve the most appropriate clinical management, this narrative review aims to briefly present current most accepted definitions of the phenomenon, speculating on its putative bipolar diathesis for some of the cases originally assessed as unipolar depression.