Behavioral Health

An FP’s guide to identifying—and treating—postpartum depression


 

References

Is it “the blues” or something else? Diagnosing PPD

Many new mothers experience postpartum blues, which manifest as tearfulness, insomnia, irritability, and anxiety. The postpartum blues, however, don’t meet the criteria for major depressive disorder and typically resolve within 14 days of delivery.19-21 On the other end of the spectrum is postpartum psychosis, which is severe and rare, and can also affect new mothers.

Screening for PPD. The most commonly used screening tool for PPD is the Edinburgh Postnatal Depression Scale (EPDS 10), a free 10-item instrument scored out of 30 possible points, with any score ≥ 13 suggesting PPD.22 The EPDS 10 has a sensitivity of 74% and specificity of 97% for the diagnosis of PPD.23 Other screening options include the Beck Depression Inventory II (BDI-II) and the Patient Health Questionnaire 9 (PHQ-9). The 21-item BDI-II takes longer to perform and is less sensitive (57%) than the EPDS.1 The PHQ-9, which asks about some symptoms common to the postpartum period (including sleep changes), is less specific than the EPDS (sensitivity, 75%; specificity, 90%).1 The EPDS also includes screening questions about anxiety.1

A positive depression screen, or any positive response to a question on suicidal ideation, should be followed up for confirmation using the Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-5) criteria for major depressive disorder with peripartum onset.24 Women with PPD should also be asked about current or prior symptoms of bipolar disorder or mania.25 Up to 67% of women with bipolar disorder may relapse postpartum, and they also have an elevated risk of postpartum psychosis.26 The Mood Disorder Questionnaire is a useful tool if a concern for bipolar depression arises.27

Refer any woman in whom bipolar depression is a concern to a clinician experienced with its management. The presence of auditory or visual hallucinations should also be assessed as indicators of postpartum psychosis. Active suicidal or homicidal ideation and postpartum psychosis all require emergent psychiatric care.21,22 Intimate partner violence may also exist or escalate in the postpartum period and may exacerbate PPD. Both ACOG and the USPSTF recommend screening postpartum women for intimate partner violence.28,29

Also consider possible medical causes of PPD symptoms. Hypothyroidism in the postpartum period may manifest with some similar symptoms to PPD and is commonly underdiagnosed.22,30 Women with postpartum anemia and low ferritin stores also have a higher likelihood of PPD (odds ratio, 1.7-4.64), and postpartum iron supplementation may reduce this risk (number needed to treat = 4 in at least 1 randomized controlled trial).31 When anemia is present, ensure that it is properly treated.

Continue to: Steps you can take to manage pPD

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