Previous studies have linked postpartum depression (PPD) to numerous risk factors, including depression during pregnancy, a history of depression prior to pregnancy, as well as marital problems, recent stressful events, and inadequate social supports.
Depression during pregnancy is common. While concerns have been raised regarding the potential teratogenic and long-term neurobehavioral effects of psychotropic drug use during pregnancy, what is often overlooked is the fact that untreated maternal depression may also put the unborn baby at risk.
Epidemiologic studies suggest that about 10% to 15% of women suffer from clinically significant depressive symptoms during pregnancy. Little is known, however, about the prevalence of depression among women with high risk pregnancies. A recent study published online in the Journal of Clinical Psychiatry suggests that this population may be at significant risk for antenatal depression.
At our clinic we have the opportunity to see patients at various stages of pregnancy. When we evaluate a patient while she is still in the planning stages, we may recommend changing medications to those that have a better studied safety profile during pregnancy and see how she does on those medications prior to conception. If that same patient came into our clinic for an evaluation, but was already pregnant, we may make different recommendations than if she was in the planning stages.
Vagus Nerve Stimulation, or VNS, has been available for the treatment of epilepsy since 1997 and was approved by the FDA for the adjunctive treatment of refractory depression in 2005. VNS relies upon the use of a surgically implanted device which delivers periodic stimulation to the vagus nerve. How VNS therapy works is not completely understood; however, several studies have suggested that this technique may be effective for some patients with treatment-resistant depression.
Both antidepressant medications and cognitive therapy have been shown to be effective for the treatment of depression; however, the question remains as to whether one treatment is preferred over the other. Subjects enrolled in The Sequenced Treatment Alternatives to Relieve Depression (STAR*D) study (men and women with major depression, ages 18-75) were initially treated with citalopram, an SSRI. Those who had unsatisfactory outcomes after initial treatment were eligible for a randomized second-step treatment trial in which they switched to a new treatment (either cognitive therapy or a different antidepressant) or augmented the citalopram regimen with either cognitive therapy or a different antidepressant.
The transition to menopause has typically been considered a time when women may be more vulnerable to mood changes. There have been inconclusive data, however, as to whether women with no lifetime history of depression transitioning to menopause are at increased risk for developing an episode of major depression.
While pregnancy has traditionally been considered a time of emotional well-being, recent data indicate that about 10% to 15% of women experience clinically significant depressive symptoms during pregnancy. Furthermore, women with a history of major depression appear to be at high risk for recurrent illness during pregnancy particularly in the setting of antidepressant discontinuation. In a recent study researchers from the University of Michigan report that while depression affects many women during pregnancy the majority of women suffering from this illness do not receive adequate treatment.
After the birth of a child, it is common for women to experience some type of mood disturbance. Typically, it is relatively mild (postpartum blues). However, about 10-15% of women experience a more severe and disabling illness, postpartum depression. It has been suggested that women who develop postpartum depression may be more sensitive to the hormonal changes that take place after delivery and that these hormonal changes may contribute to emergence of depressive symptoms during the postpartum period.
