分娩前后孕产妇心理状态调查

目的:了解初产妇在分娩前后的焦虑、抑郁情况。方法:采用焦虑自评量表(SAS)、抑郁自评量表(SDS)和爱丁堡产后抑郁量表(EPDS)进行评定分析,测定血雌二醇和孕酮值。结果:分娩前后均有一定的焦虑和抑郁发生率。结论:应重视孕产妇的心理状态。     

Maternal brain resting‐state connectivity in the postpartum period

In the postpartum period, the maternal brain experiences both structural and functional plasticity. Although we have a growing understanding of the responses of the human maternal brain to infant stimuli, little is known about the intrinsic connectivity among those regions during the postpartum months. Resting‐state functional connectivity (rsFC) provides a measure of the functional architecture of the brain based upon intrinsic functional connectivity (ie, the temporal correlation in blood oxygenation level dependent signal when the brain is not engaged in a specific task). In the present study, we used resting‐state functional magnetic resonance imaging to examine how later postpartum months are associated with rsFC and maternal behaviours. We recruited a sample of 47 socioeconomically diverse first‐time mothers with singleton pregnancies. Because the amygdala has been shown to play a critical role in maternal behaviours in the postpartum period, this was chosen as the seed for a seed‐based correlation analysis. For the left amygdala, later postpartum months were associated with greater connectivity with the anterior cingulate gyrus, left nucleus accumbens, right caudate and left cerebellum (P < 0.05, false discovery rate corrected). Furthermore, in an exploratory analysis, we observed indications that rsFC between the left amygdala and left nucleus accumbens was positively associated with maternal structuring during a mother child‐interaction. In addition, later postpartum months were associated with greater connectivity between the right amygdala and the bilateral caudate and right putamen. Overall, we provide evidence of relationships between postpartum months and rsFC in the regions involved in salience detection and regions involved in maternal motivation. Greater connectivity between the amygdala and nucleus accumbens may play a role in positive maternal behaviours.     

围产期妇女焦虑、抑郁调查

目的:了解孕产妇分娩前后焦虑、抑郁症状的发生率及变化特点. 方法:应用焦虑自评量表(SAS)、抑郁自评量表(SDS)、爱丁堡产后抑郁量表(EPDS)和生活事件量表(LES),对49例孕妇在孕35～40周、分娩后1周、4周和12周进行评估. 结果:4个时点SAS的焦虑发生率分别为10.2%、12.2% 、10.2%和6.1%;EPDS的抑郁发生率为8.2%、12.2%、4.1%和8.2%;SDS 4个因子分在分娩后持续下降.大专及以上文化者某些量表评分显著低于大专以下文化者. 结论:孕产妇在孕晚期和分娩后都有一定比例的焦虑和抑郁症状.     

Altered functional connectivity density and couplings in postpartum depression with and without anxiety

Postpartum depression (PPD) is the most common psychological health issue among women, which often comorbids with anxiety (PPD-A). PPD and PPD-A showed highly overlapping clinical symptoms. Identifying disorder-specific neurophysiological markers of PDD and PPD-A is important for better clinical diagnosis and treatments. Here, we performed functional connectivity density (FCD) and resting-state functional connectivity (rsFC) analyses in 138 participants (45 unmedicated patients with first-episode PPD, 31 PDD-A patients and 62 healthy postnatal women, respectively). FCD mapping revealed specifically weaker long-range FCD in right lingual gyrus (LG.R) for PPD patients and significantly stronger long-range FCD in left ventral striatum (VS.L) for PPD-A patients. The follow-up rsFC analyses further revealed reduced functional connectivity between dorsomedial prefrontal cortex (dmPFC) and VS.L in both PPD and PPD-A. PPD showed specific changes of rsFC between LG.R and dmPFC, right angular gyrus and left precentral gyrus, while PPD-A represented specifically abnormal rsFC between VS.L and left ventrolateral prefrontal cortex. Moreover, the altered FCD and rsFC were closely associated with depression and anxiety symptoms load. Taken together, our study is the first to identify common and disorder-specific neural circuit disruptions in PPD and PPD-A, which may facilitate more effective diagnosis and treatments.     

Individual coping style and psychological attitudes during pregnancy predict depression levels during pregnancy and during postpartum

Fifty primigravidae were investigated from 30 weeks of gestation until 6 months after delivery to assess the predictive value of individual coping style, conception time and specific psychological changes during pregnancy for the depression levels assessed during the third trimester of pregnancy and 5 days, 6 weeks and 6 months after delivery. The individual coping style is an effective predictor of depression levels during the third trimester of pregnancy and 6 months after delivery, but not for the depression levels 5 days and 6 weeks after delivery. A path analysis revealed that high depressive coping and low social support-seeking predict a longer conception time, which all predict a more important lack of spousal support during pregnancy. Higher depressive coping, a longer conception time and a more important lack of spousal support during pregnancy all predict high depression levels 6 months after delivery. The present findings thus suggest helpful predictors for the psychological adaptation during the transition to parenthood.     

Identifying women at-risk for postpartum depression in the immediate postpartum period

OBJECTIVE: To develop a multifactorial predictive model of depressive symptomatology in the first week postpartum in order to assist in targeted screening procedures. METHOD: As part of a longitudinal study, a population-based sample of 594 mothers in a health region near Vancouver, British Columbia completed a mailed questionnaire at 1-week postpartum that included diverse risk factors from the following domains: sociodemographic, biological, pregnancy-related, life stressors, social support, obstetric and adjustment to motherhood. Following univariate analysis, sequential regression analysis was completed to develop a multifactorial predictive model. RESULTS: In the multivariate model, the factors predictive of depressive symptomatology at 1-week postpartum included immigration within the last 5 years, history of depression independent of childbirth, diagnosis of pregnancy-induced hypertension, vulnerable personality style, stressful life events, lack of perceived support, lack of readiness for hospital discharge and dissatisfaction with infant feeding method. CONCLUSION: The findings suggest that several risk factors for depressive symptomatology in the immediate postpartum period are consistent with previously identified factors but other factors such as recent immigrant status, feeling unready for hospital discharge, dissatisfaction with their infant feeding method, and pregnancy-induced hypertension should also be examined.     

Mood changes during pregnancy and the postpartum period: development of a biopsychosocial model

OBJECTIVE: Women are vulnerable to mood changes during pregnancy and the postpartum period. We set out to empirically test the hypothesis that biological and psychosocial variables interact to result in this vulnerability. METHOD: Using structural equation modeling techniques, we developed an integrative model of perinatal mood changes from clinical, psychosocial, hormone and mood data collected from 150 women in late pregnancy and at 6-weeks postpartum. RESULTS: In the prenatal model, biological variables had no direct effect on depressive symptoms. However, they did act indirectly through their significant effects on psychosocial stressors and symptoms of anxiety. The same model did not fit the postpartum data, suggesting that different causal variables may be implicated in postpartum mood. CONCLUSION: This model demonstrates the importance of considering both biological and psychosocial variables in complex health conditions such as perinatal mood disorders.     

Prevalence, onset and comorbidity of postpartum anxiety and depressive disorders

Objective: The study presents data on the 3‐month prevalences of postpartum anxiety disorders (PAD) and postpartum depressive disorders (PDD) and their comorbidity in a German community sample. Associations with sociodemographic variables and previous history of psychopathology were analysed. Method: Data were gathered in a longitudinal study over the first 3 months postpartum. In a two‐stage screening procedure, a population‐based representative sample of 1024 postpartum women was assessed for symptoms of anxiety and depression using DSM‐IV‐based screening instruments. Results: The estimated rates of DSM‐IV disorders were 11.1% for PAD and 6.1% for PDD. Comorbidity was found in 2.1%. The rate for PAD with postpartum onset was 2.2% and for PDD 4.6%. Young mothers and mothers with a low education level had a heightened risk of developing depression following delivery. Conclusion: Because of the clinical relevance of PAD, controlled studies and specialized programmes for prevention and treatment are urgently required.     

A tumultuous transition to motherhood: Altered brain and hormonal responses in mothers with postpartum depression

Postpartum depression (PPD) is a common but complex condition that is poorly understood and multifactorial in aetiology. It is a condition that can compromise the mother's care for her infant, which may pose challenges to the formation of the mother‐infant bond and the infant's overall development. Past research has looked at abnormalities in the brain circuitry and hormonal profiles of mothers with PPD compared to non‐depressed mothers. However, abnormalities in PPD that may specifically affect the mother's care of her infant have not been clearly assessed. Thus, the present review aims to synthesise studies of altered brain and hormonal responses in mothers with PPD in relation to their care of their infant. First, we review maternal brain responses and their relation to PPD symptomatology, focusing on the salience/fear network, reward/attachment network and default mode network. Next, we discuss oxytocin and hypothalamic‐pituitary‐adrenal axis hormones in the context of maternal behaviour and PPD. Finally, we synthesise these findings and propose how future studies may benefit from the combined study of both neural and hormonal activity to better understand the underlying neurobiology of maternal care in PPD.