Postpartum bipolar episodes are not distinct from spontaneous episodes: implications for DSM-V

Occurrence of postpartum manic or mixed episodes in women with bipolar I disorder: A systematic review and meta-analysis

OBJECTIVE

Accurate information on the frequency and prevalence of manic or mixed episodes is important for therapeutic, prognostic, and safety concerns. We aimed to estimate the risk of relapse of manic and mixed episodes after delivery in women with bipolar I disorder or schizoaffective disorder-bipolar type.

METHODS

Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a comprehensive literature search in PubMed, PsycINFO, Embase, and Cochrane databases was carried out on November 17, 2022, using the terms ((bipolar disorder) OR (manic depressive illness)) AND (mania)) AND (postpartum)) AND (recurrence)) AND (relapse). The search was updated on March 29, 2023. Case studies and qualitative analyses were excluded. Twelve studies reporting on 3595 deliveries in 2183 women were included in the quantitative analysis.

RESULTS

The overall pooled estimate of postpartum relapse risk was 39% (95% CI = 29, 49; Q(11) = 211.08, p < 0.001; I2 = 96.31%). Among those who had a relapse, the pooled estimate of risk for manic and mixed episodes was 38% (95% CI = 28, 50; Q(11) = 101.17, p < 0.001; I2 = 91.06%). Using data from the nine studies that reported the percentage of medication use during pregnancy, we estimated a meta-regression model with the percent medication use as a continuous explanatory variable. The estimated prevalence of relapse was 58.1% (95% CI, 9.6 to 39.3 to 76.8) for studies with no medication use and 25.9% (95% CI, 10.5-41.3) for studies with 100% medication use. The difference between the two prevalence estimates was statistically significant, z = -2.099, p = 0.0359.

CONCLUSIONS

Our findings suggest an overall pooled estimate of postpartum relapse risk of 39%, while the pooled estimate of risk for manic and mixed episodes was 38%. These findings highlight the need to educate patients with bipolar I disorder, and their healthcare professionals about the high risk of relapse of manic or mixed episodes after delivery.

Postpartum Relapse in Patients with Bipolar Disorder

Pregnancy and postpartum are vital times of greater vulnerability to suffer a decompensation of bipolar disorder (BD). Methods: A systematic literature search was performed on public electronic medical databases, following PRISMA guidelines. Studies were included if they reported postpartum relapse in patients diagnosed with BD according to Diagnosis Statistical Manual (DSM) or International Classification Disease (ICD) criteria. Results: Sixteen articles describing 6064 deliveries of 3977 women were included in the quantitative analyses. The overall risk of postpartum relapse was 36.77%. The methodology of the studies, the diagnostic criteria, the discrimination between BD type I and II, and the origin of the sample were very heterogeneous. Conclusions: the rate of postpartum bipolar relapse is very high, as it is considered to be a critical period. It is especially important to detect decompensation in this period and to evaluate mood-stabilizing treatment, given the high risk of relapse concentrated in a short period.

Perinatal Mixed Affective State: Wherefore Art Thou?

Mixed states in patients with a perinatal mood episode is seldom encountered. Lack of appropriate assessment tools could be partly responsible for this observation. The authors conducted a selective review of studies dealing with the reporting of mixed symptoms in women during the perinatal period with the intention to quantify the phenomenon. In many instances of reported postpartum depression, either a first onset or an onset in the context of bipolar disorder, mixed states were identifiable. However, the strict application of the Diagnostic and Statistical Manual of Mental Disorders, 5th edition, mixed features specifier to these episodes risks misdiagnosis.

Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) collaborative update of CANMAT guidelines for the management of patients with bipolar disorder: update 2013

The Canadian Network for Mood and Anxiety Treatments published guidelines for the management of bipolar disorder in 2005, with updates in 2007 and 2009. This third update, in conjunction with the International Society for Bipolar Disorders, reviews new evidence and is designed to be used in conjunction with the previous publications.The recommendations for the management of acute mania remain largely unchanged. Lithium, valproate, and several atypical antipsychotic agents continue to be first-line treatments for acute mania. Monotherapy with asenapine, paliperidone extended release (ER), and divalproex ER, as well as adjunctive asenapine, have been added as first-line options.For the management of bipolar depression, lithium, lamotrigine, and quetiapine monotherapy, as well as olanzapine plus selective serotonin reuptake inhibitor (SSRI), and lithium or divalproex plus SSRI/bupropion remain first-line options. Lurasidone monotherapy and the combination of lurasidone or lamotrigine plus lithium or divalproex have been added as a second-line options. Ziprasidone alone or as adjunctive therapy, and adjunctive levetiracetam have been added as not-recommended options for the treatment of bipolar depression. Lithium, lamotrigine, valproate, olanzapine, quetiapine, aripiprazole, risperidone long-acting injection, and adjunctive ziprasidone continue to be first-line options for maintenance treatment of bipolar disorder. Asenapine alone or as adjunctive therapy have been added as third-line options.

Identifying features of bipolarity in patients with first-episode postpartum depression: findings from the international BRIDGE study

OBJECTIVES

The aims of this study were to assess rates of bipolar spectrum disorders in women experiencing their first episode of postpartum depression, and to find out features indicative of bipolarity in these patients.

METHODS

As part of the international BRIDGE study designed to detect hypo/mania in patients with a major depressive episode, 52 (5.85%) were found to experience a first episode of postpartum (FEPP) depression, whereas 833 (94.13%) had a first episode of nonpostpartum (FENPP) depression. Hypo/mania was assessed using varying definitions of bipolarity, and the two groups compared on sociodemographic, family history and clinical characteristics.

RESULTS

Compared to FENPP depressive patients, women with FEPP depression had higher rates of bipolar disorders, with more hypo/mania in first degree relatives. Psychotic symptoms, atypical features, mixed depression, younger age at onset, high number of prior episodes, episodes of short duration, switches on antidepressants, seasonality of mood episodes as well as mood episodes with free intervals were found to be more frequent in FEPP depressives.

LIMITATIONS

The following are the limitations of this study: centres not randomly selected, recall bias, cross-sectional design, and limited training of participating psychiatrists.

CONCLUSIONS

This study confirms, in women experiencing a first depressive episode, high rates (15 to 50%) of bipolar disorders during the postpartum period and is the first to systematically assess and demonstrate the higher prevalence of identifying features of bipolarity in FEPP versus FENPP depression. Early recognition of bipolarity in these patients may help prevent the harmful consequences of this illness.