Major Depressive Disorder

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In our last installment, we discussed a familiar finding from the National Comorbidity Survey Replication (NCS-R): the peak age of onset for any mental health disorder is about 14 years. In an attempt to explain these data, we are exploring some of the known developmental changes in the teenaged brain at the level of gene, cell, and behavior.

Self-administration of drugs of abuse often causes changes in the brain that potentiate the development or intensification of addiction. However, an addictive disorder does not develop in every person who uses alcohol or abuses an illicit drug. Whether exposure to a substance of abuse leads to addiction depends on the antecedent properties of the brain.

>I greatly enjoyed Dr Ron Pies’ editorial “What Should Count as a Mental Disorder in DSM-V?”1 in which he encouraged framers of DSM-V to critically examine the boundaries of mental illness and to more carefully distinguish between diseases, disorders, and syndromes. As I have noted elsewhere, current plans to integrate a “spectrum” approach into DSM-V require a careful consideration of these issues that must be defensible to critics of diagnostic expansion within psychiatry.2

There is currently a small but impressive evidence base that shows that psychological and interpersonal factors play a pivotal role in pharmacological treatment responsiveness.

Currently the Veterans Administration (VA) is the world’s largest recipient of per patient funding for PTSD. The VA treats 200,000 veterans with this diagnosis annually at a cost of $4 billion. But research calls into question the very existence of the “PTSD” syndrome, and its diagnostic formulation remains invalid. We do not minimize the suffering of those who experience trauma or the need for comfort and restitution. We seek only to reexamine research evidence, to clarify the impact of culture on diagnosis, to reevaluate the consequences of trauma, and to ensure optimal allocation of resources.

Transcranial magnetic stimulation produced improvements in key areas of cognition and in short-term verbal memory in patients with major depressive disorder, and no adverse cognitive effects were shown. The results of this research were presented by Mark Demitrack, MD, vice president and chief medical officer of Neuronetics, Inc, and colleagues at the annual meeting of the American Psychiatric Association in May.

Patients who have had a myo­cardial infarction (MI) should be screened and appropriately treated for depression, according to a guideline recently issued by the American Academy of Family Physicians (AAFP).1 The group recommends use of a standardized depression symptom checklist during hospitalization and “at regular intervals” thereafter.

Cardiovascular disease kills more people worldwide than everything else combined, said Dean Ornish, MD, cardiologist and clinical professor of medicine at the University of California in San Francisco. Dr Ornish is well known for his lifestyle-driven approach to the control of cardiovascular disease. Depending on the extent of personalized lifestyle changes, disease progression can be stopped and even reversed.

I have been practicing psychodynamic psychotherapy for more than 30 years. During this time, there has been an accepted taboo against coupling psychotherapy with spirituality-despite a number of articles that have been written on this subject.

Why do Drs Pies, Wakefield, and Horwitz feel that “blue” feelings after a major loss (such as death of a spouse) or, for that matter, any loss have to be either “grief” or “major depression”?

In “Major Depression After Recent Loss Is Major Depression-Until Proved Otherwise” (Psychiatric Times, December 2008, page 12), Dr Pies highlights one of the more provocative questions encountered when we train in clinical psychiatry: “Suppose your new patient Mr Jones, tells you he is feeling ‘really down.’ He meets all DSM–IV symptomatic and duration criteria for a major depressive episode (MDE) after having lost his wife to cancer 2 weeks ago. Should you diagnose MDD?”

The polemics between Drs Pies and Wakefield and Horwitz (“An Epidemic of Depression,” Psychiatric Times, November 2008, page 44) have validity, but their commentaries did not touch on the real bone of contention. Dr Pies does not believe that just because psychosocial precipitators of a depression-specifically, bereavement-are known, somehow the significance of the depression should be viewed differently.