Although full clinical recovery and good quality of life for the patients is the ideal target in the everyday clinical practice, suicidal behaviour is the most important (and most visible) treatment outcome in patients with psychiatric, disorders. Untreated and unsuccessfully treated major major mood disorder (particularly the acute major depressive episode) is the main cause of attempted and completed suicide, particularly in the presence of comorbid Axis I/Axis II psychiatric disorders and other (psycho-social) suicide risk factors. Since the majority of mood disorder patients never commit or attempt suicide, other clinically explorable suicide risk factors in major depressive episode (like high level of severity, hopelessness, aggressive/impulsive personality features, prior suicide attempt, family history of suicide, adverse life situations etc.) also play a contributory role.
A relatively newly recognised important proximate suicide risk factor in major depressive episode might be the depressive mixed state (3 or more simultaneously co-occuring non-euphoric intra-depressive hypomanic symptoms = DMX-3) since the frequency of past suicide attempts and current suicidal ideations is much higher among mixed than nonmixed unipolar and bipolar major depressives. A most recent study have also found a significantly higher rate of DMX-3 among the 29 bipolar (I+II) depressive and 60 unipolar depressive suicide attempters (90% vs 62% respectively) than in nonsuicidal 241 bipolar (I+II) and 104 unipolar major depressive outpatients (59% vs 29% respectively). On the other hand, however, suicidal behaviour in bipolar patients is not exclusively restricted to depressive episodes since mixed (major) affective episode (meeting the full syndromal criteria for mania and major depression in the same time) and dysphoric mania (full mania and 3 or more depressive symptoms) also increases the risk of attempted and completed suicide.
The recognition of depressive mixed states as possible suicide risk factor has important implications for suicide prevention, since antidepressant monotherapy (unprotected by mood stabilizers) in depressed patients with unrecognised bipolarity can worsen depression via augmenting mixed depression or generating de novo mixed states.
Balázs J, et al, J Affect Disord, 2006, 91: 133-138.
Benazzi F, Psychother Psychosom, 2005, 74: 61-62.
Benazzi F. and Aksikal HS, Curr Opin Psychiat, 2003, 16 (Suppl.2): 71-78.
Perugi G, et al, J Affect Disord, 2001, 67: 105-114.
Rihmer Z, Clinical Neuropsychiatry, 2005, 2: 48-54.
Rihmer Z, Aksikal HS. J Affect Disord, 2006, 94: 3-13.
This post was submitted by Prof Zoltan Rihmer.