Over the past few years, there has been a push to screen women for depression both during pregnancy and the postpartum period. Â Â While there have been various initiatives mandating screening, there remain questions regarding the optimal timing of screening and the best screening tools to use.
Wouldn’t it be nice if we could identify women who were at risk for postpartum depression (PPD)? Maybe if we could do that, we could actually prevent the depression from occurring. Or at least, we could intervene in some way so that the depression would not significantly affect the mother and her family.Â
The American Psychiatric Association is now considering the possibility of including premenstrual dysphoric disorder (PMDD) in the DSM-V as a new category, rather than listing a set of criteria for PMDD in the appendix (as in DSM-IV). The diagnostic criteria remain relatively unchanged. Many feel that the Inclusion of PMDD as a distinct diagnostic category will lead to greater legitimacy for the disorder and will encourage the growth of evidence-based research in this area.
Understanding posttraumatic stress disorder (PTSD) during pregnancy is important given that PTSD is relatively common and persistent in nature. PTSD will occur in approximately 10% of women in their lifetime, with one-third of episodes lasting more than five years. Given the relatively high prevalence of PTSD in young women and the chronic nature of the illness, many women may experience PTSD symptoms during pregnancy.
Few studies have focused on anxiety disorders in the perinatal period. While various studies have measured levels of anxiety or distress during pregnancy, most studies have relied upon self-report questionnaires to assess for anxiety. In contrast, few studies have used standardized diagnostic criteria to determine the prevalence of anxiety disorders in pregnant populations.  In a recent study, Buist and colleagues studied the prevalence and course of generalized anxiety disorder (GAD) in a prospectively ascertained population of pregnant women.
Postpartum depression is experienced by 10-15% of women and carries risks to both mother and baby. Untreated maternal depression is associated with negative outcomes for children including behavioral problems, cognitive or developmental delays and impaired attachment.  Treatment of a mother’s depression can improve not only her own functioning and quality of life, but can improve her children’s symptoms as well (Pilowsky 2008). Given the importance of a mother’s mental health on her baby’s well-being, the American Academy of Pediatrics (AAP) released a recent report which recommends that pediatricians screen mothers for postpartum depression at baby’s one-, two-, and four-month visits (Earls 2010).
Premenstrual worsening of mood is common among women with depression, but little is known about how often women with bipolar disorder experience worsening of their mood premenstrually. In a study by Payne et al. (2007), premenstrual symptoms were reported by twice as many women diagnosed with mood disorders (mixture of  Bipolar Disorder and Major Depressive Disorder) than by women who did not have a psychiatric diagnosis (67.7% vs. 33.7%). These results suggest that PMS symptoms are particularly common in women with bipolar disorder and major depressive disorder. However, this study involved women reporting prior experiences with PMS, which is not always as accurate as studies that involve prospective monitoring to obtain real-time reporting of PMS symptoms. Such prospective studies of PMS in women with bipolar disorder are sparse and have inconsistent conclusions.
While postpartum depression is common among new mothers, our ability to reliably detect this illness remains poor. Recent studies have indicated that most obstetricians report that they screen for postpartum psychiatric problems at routine follow-up visits but typically do not use standardized instruments to assess for postpartum depression. Unfortunately, studies which have measured the success of routine screening suggest that without the use of standardized screening tools like the Edinburgh Postnatal Depression Scale, many women with postpartum depression are not identified.
Post-Traumatic Stress Disorder (PTSD) after childbirth is an understudied condition. Traditionally, much of the data have been based on case reports, indicating that PTSD can occur following a range of childbirth and child loss situations, including long or complicated labor, severe pain with labor or delivery, cesarean section, and unanticipated pregnancy outcome, such as child loss, miscarriage or infant birth defects. PTSD related to childbirth is frequently overlooked by physicians; the relative newness of the diagnosis and lack of literature on this topic are factors which may hinder recognition of this disorder.
The most recent issue of the New England Journal of Medicine includes the presentation of a case from the Center for Women's Mental Health of a woman with bipolar disorder who developed postpartum psychosis after the birth of her child. The case highlights some of the clinical challenges in treating patients with bipolar disorder during pregnancy and the postpartum period and reviews the current literature on postpartum psychosis.
