BACKGROUND: Climate change increases not only the frequency, intensity and duration of extreme heat events but also annual temperatures globally, resulting in many negative health effects, including harmful effects on pregnancy and pregnancy outcomes. As temperatures continue to increase precipitously, there is a growing need to understand the underlying biological pathways of this association. This systematic review will focus on maternal, placental and fetal changes that occur in pregnancy due to environmental heat stress exposure, in order to identify the evidence-based pathways that play a role in this association.
METHODS: We will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We will search PubMed and Ovid Embase databases from inception using tested and validated search algorithms. Inclusion of any studies that involve pregnant women and have measured environmental heat stress exposure and either maternal, placental or fetal physiological or biochemical changes and are available in English. Modelling studies or those with only animals will be excluded. The risk of bias will be assessed using the Office of Health Assessment and Translation tool. Abstract screening, data extraction and risk of bias assessment will be conducted by two independent reviewers.Environmental parameters will be reported for each study and where possible these will be combined to calculate a heat stress indicator to allow comparison of exposure between studies. A narrative synthesis will be presented following standard guidelines. Where outcome measures have at least two levels of exposure, we will conduct a dose-response meta-analysis should there be at least three studies with the same outcome. A random effects meta-analysis will be conducted where at least three studies give the same outcome.
BACKGROUND: This systematic review and meta-analysis does not require ethical approval. Dissemination will be through peer-reviewed journal publication and presentation at international conferences/interest groups.
UNASSIGNED: CRD42024511153.

Solid fuel use is increasingly linked to low birth weight (LBW), but conclusions were inconsistent. We aimed to summarize the association between solid fuel use and LBW. Twenty-one studies that met the inclusion criteria were identified through PubMed, Qvid Medline, and Web of Science databases. The final search occurred on March 20, 2024. Summary relative effect and 95 % confidence intervals were estimated with a random-effects model. Subgroup analyses and sensitivity analyses were performed to investigate possible sources of heterogeneity and to test the stability of the results. Nineteen studies evaluated the association between solid fuel use in pregnant woman and LBW (1.188 for solid fuels: 1.055 to 1.322). No significant heterogeneity was identified among the included studies (p=0.010, Tau2=0.02, I2=48.1 %). Subgroup analysis found positive correlations for Asia, data years prior to 2014, and rural studies (1.245 for Asia: 1.077 to 1.412; Tau2=0.03, I2=56.0 %; 1.243 for data years prior to 2014: 1.062 to 1.424; Tau2=0.04, I2=60.98 %; 1.514 for rural: 1.258 to 1.771; Tau2=0.00, I2=0.0 %). Our meta-analysis showed that solid fuel use in pregnant women had an impact on LBW. Measures and policies are also needed to promote energy conversion and to limit and reduce the use of solid fuels.

Congenital Zika syndrome (CZS) is a major concern in India and highlights the multifaceted challenges posed by the Zika virus (ZIKV). The alarming increase in CZS cases in India, a condition that has serious effects on both public health and newborns, has raised concerns. This review highlights the importance of raising concern and awareness and taking preventive measures by studying the epidemiology, clinical symptoms, and potential long-term consequences of CZS. The review also contributes to worldwide research and information sharing to improve the understanding and prevention of CZS. As India deals with the changing nature of CZS, this thorough review is an important tool for policymakers, health workers, and researchers to understand what is happening now, plan for what to do in the future, and work together as a team, using medical knowledge, community involvement, and study projects to protect newborns\' health and reduce the public health impact of these syndromes.

BACKGROUND: The perinatal period is known as time of transition and anticipation. For women with social risk factors, child protection services may become involved during the perinatal period and this might complicate their interactions with healthcare providers.
OBJECTIVE: To systematically review and synthesise the existing qualitative evidence of healthcare experiences of women and healthcare professionals during the perinatal period while facing child protection involvement.
METHODS: A systematic search of databases (Web of Science, MEDLINE, EMBASE, PsychINFO, CINAHL, ASSIA, MIDIRS, Social Policy and Practice and Global Health) was carried out in January 2023, and updated in February 2024. Quality of studies was assessed using the Critical Appraisal Skills Programme. A Critical Interpretative Synthesis was used alongside the PRISMA reporting guideline.
RESULTS: A total of 41 studies were included in this qualitative evidence synthesis. We identified three types of healthcare interactions: Relational care, Surveillance and Avoidance. Healthcare interactions can fluctuate between these types, and elements of different types can coexist simultaneously, indicating the complexity and reciprocal nature of healthcare interactions during the perinatal period when child protection processes are at play.
CONCLUSIONS: Our findings provide a novel interpretation of the reciprocal interactions in healthcare encounters when child protection agencies are involved. Trust and transparency are key to facilitate relational care. Secure and appropriate information-sharing between agencies and professionals is required to strengthen healthcare systems. Healthcare professionals should have access to relevant training and supervision in order to confidently yet sensitively safeguard women and babies, while upholding principles of trauma-informed care. In addition, systemic racism in child protection processes exacerbate healthcare inequalities and has to be urgently addressed. Providing a clear framework of mutual expectations between families and healthcare professionals can increase engagement, trust and accountability and advance equity.

OBJECTIVE: This scoping review sought to investigate the association between pregnancy-related complications and post-traumatic stress disorder (PTSD) among postpartum women, then summarize effective psychological interventions for pregnancy-related PTSD or sub-PTSD.
METHODS: Publications in English and Chinese were searched in PubMed, Embase, Cochrane, ISI Web of Science, China National Knowledge Infrastructure (CNKI), and WanFang databases using the subject headings of \"Stress Disorders, Post-Traumatic\", \"Pregnant Women\", and \"psychotherapy\". To ensure that as many relevant studies are incorporated as possible, free terms such as prenatal, postnatal, perinatal and gestation were also used. Intervention studies and related cases published by July 1st, 2023, were also searched.
RESULTS: Twenty-one articles (including 3,901 mothers) were included in this review. Evidence showed that typical psychological interventions exhibited great effect, and family support programs, peer support, online yoga, and music therapy were also effective in reducing risk and improving the psychological well-being of the studied population.
CONCLUSIONS: Fetal abnormalities, miscarriage, premature birth, infants with low birth weights, hypertension, pre-eclampsia, HELLP syndrome, and hyperemesis gravidarum are associated with an increased risk of PTSD. Moreover, high-risk pregnant women may benefit from psychological interventions such as cognitive behavioral therapy (CBT). It may also be feasible and well-accepted for music therapy and exposure therapy to lessen the intensity of PTSD in mothers.

The systematic review and meta-analysis were conducted to ascertain the prevalence of anemia, iron deficiency (ID), and iron deficiency anemia (IDA) among Chinese pregnant women. A total of 722 articles on maternal anemia during pregnancy published between January 2010 and December 2020 were compiled, and a systematic review and meta-analysis were conducted on 57 eligible studies including 1,376,204 pregnant women to ascertain the prevalence of anemia and the prevalence in different subgroups. The results showed that the prevalence of anemia, ID, and IDA among pregnant women in China were 30.7% (95% CI: 26.6%, 34.7%), 45.6% (95% CI: 37.0%, 54.2%), and 17.3% (95% CI: 13.9%, 20.7%), respectively. All prevalence increased with the progression of the pregnancy. There were sizable regional variations in the prevalence of anemia, ID, and IDA. Generally, lower prevalence was observed in the economically more advanced eastern region of the country, while the prevalence of ID was higher in the eastern region than that in the western region. The prevalence of anemia and IDA in rural areas was higher than that in urban areas, but ID prevalence was higher in urban areas. In conclusion, the regional differences and urban-rural disparities in the prevalence of anemia indicate the need for more context-specific interventions to prevent and treat anemia. It was found that dietary factors were one of the major causes of anemia, and iron-containing supplements and nutrition counseling could be effective interventions to reduce the prevalence of anemia, ID, and IDA among Chinese pregnant women.

Background: The aim of this review was to evaluate the effects of periodontal disease (PD) treatment in pregnant women to reduce the risk of preterm birth (PB) and low birth weight (LBW) by conducting an umbrella review. Methods: A comprehensive search for the literature up to April 2024 was conducted across multiple databases including PubMed, Cochrane Library, Scopus, EMBASE, Scielo, Web of Science, Google Scholar, Proquest Dissertations and Theses, and OpenGrey. We specifically targeted systematic reviews (SRs) with or without meta-analyses, irrespective of language or time constraints, focusing on primary studies examining the effect of PD treatment in pregnant women to reduce the risk of PB and LBW. Various types of non-systematic reviews, intervention studies, observational studies, preclinical and basic research, summaries, comments, case reports, protocols, personal opinions, letters, and posters were excluded from consideration. The quality and overall confidence of the included studies were assessed using the AMSTAR-2 tool. Results: After the initial search, 232 articles were identified, of which only 24 met the selection criteria after exclusion. The majority of these studies indicated that periodontal treatment reduces the risk of PB and LBW. Conclusions: According to the findings and conclusions drawn from the SRs with a high overall confidence level, PD treatment in pregnant women reduces the risk of PB and LBW.

OBJECTIVE: Understand and explore the childbirth experiences of pregnant women living with HIV (PWLWHIV). With the advent of several measures to decrease the intrapartum HIV infection and a strong emphasis on the humanization of childbirth, there is a growing focus on providing positive childbirth experiences for pregnant women. Indeed, a positive childbirth experience is even more important in the group of pregnant women living with HIV (PWLWHIV) as it plays a pivotal role in enhancing the mother\'s adherence to her postpartum treatment and the newborn\'s engagement in Infectious Disease services.
METHODS: A scoping review was conducted. Searches were performed on databases, such as MEDLINE, PUBMED, WEB OF SCIENCE and Cochrane Library, using the following keywords: childbirth, birth, parturition, HIV, humaniz*, perceived safety, experience, maternal satisfaction, healthcare professional and midwi*. Articles meeting pre-established criteria were selected within the timeframe of 2013 to 2023 for inclusion in the review.
RESULTS: Out of a total of 2,340,391 articles, 4 were chosen based on our defined criteria. Three primary themes emerged from the selected articles: the assessment of childbirth experience quality, vulnerability and autonomy.
CONCLUSIONS: The four studies identified had a small sample size and were not adequately conducted with a specific focus on studying the childbirth experience of pregnant women living with HIV (PWLWHIV). This scoping review revealed a gap in the existing literature, indicating a need for further research and clarification in the identified area.

Congenital toxoplasmosis is a parasitic disease caused by the transmission of the protozoan Toxoplasma gondii during pregnancy that can potentially cause severe consequences for the fetus or neonates. The disease disproportionately impacts the global population and is generally correlated with the Human Development Index. Despite its prevalence, there are knowledge gaps among pregnant women and healthcare providers regarding the prevention, diagnosis, and treatment of this condition. This narrative review aimed to examine the current state of knowledge of toxoplasmosis among both groups, with a focus on exploring the Brazilian and global perspectives and highlighting opportunities for enhancing education and communication. A search was conducted across five databases, and 60 studies were selected (23 in Brazil and 37 worldwide). Quantitative analysis revealed that general knowledge of toxoplasmosis among pregnant women is notably poor, with 66% of Brazilian women and 72% of women worldwide lacking sufficient understanding. Among those with some knowledge, the most recognized association is with cats (46% in Brazil and 38% worldwide), followed by raw or undercooked meat (27% in Brazil and 25% worldwide), and improperly sanitized vegetables or water (15% in Brazil and 21% worldwide). Similarly, gaps in knowledge were found among healthcare providers. Difficulty with IgG avidity test interpretation is higher in Brazil (43%) compared to worldwide (18%). The most recognized association is with cats (66% in Brazil and 74% worldwide), followed by raw or undercooked meat (49% in Brazil and 70% worldwide), and improperly sanitized vegetables or water (31% in Brazil and 32% worldwide). These findings emphasize the need for tailored local and global public health educational initiatives to enhance knowledge of toxoplasmosis among pregnant women and healthcare providers.

BACKGROUND: Physical activity during pregnancy has been recommended as an effective measure to prevent various pregnancy complications. However, global physical activity participation during pregnancy is not optimal, and the factors influencing physical activity participation during pregnancy need to be further investigated. In China, where there are no localized guidelines for physical activity during pregnancy, the prevalence of meeting recommended physical activity levels among Chinese pregnant women is still unclear.
OBJECTIVE: This study aimed to comprehensively review the prevalence of meeting recommended physical activity levels among pregnant women in China and to further explore the factors influencing physical activity participation during pregnancy.
METHODS: This was a systematic review and meta-analysis.
METHODS: A systematic review was conducted in both English and Chinese databases from inception until August 1, 2023. Two reviewers independently screened literature, assessed study eligibility and extracted data. The Agency for Healthcare Research and Quality was used to evaluate methodological quality of included studies. The pooled prevalence was calculated using a random-effects model. Subgroup analyses were conducted to explore sources of heterogeneity.
RESULTS: A total of 12 cross-sectional studies, including 11,323 Chinese pregnant women with a mean age ranging from 27.0 to 33.0 years, met the inclusion criteria. The prevalence of meeting recommended physical activity levels among pregnant women in China was 21.0 % (95 % confidence interval (CI):12.5 %-29.5 %). A higher prevalence of meeting recommended physical activity levels was observed among pregnant women who were in their second trimester, who were living in the southern region, who were assessed by validated questionnaires, and who used 150 min physical activity per week as a criterion for meeting recommendation.
CONCLUSIONS: The findings suggested a low prevalence of meeting recommended physical activity levels among Chinese pregnant women, which was affected by a variety of factors. It is recommended that further research be conducted in the future to explore physical activity intervention strategies for women of childbearing age before and during pregnancy based on the factors affecting physical activity to improve physical activity compliance, maternal and child health and population quality.
BACKGROUND: CRD42022372722 (PROSPERO).