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Objective: To understand how congenital toxoplasmosis (CT) diagnosis has evolved over the years, we performed a systematic review and meta-analysis to summarize the kind of analysis that has been employed for CT diagnosis. Methods: PubMed and Lilacs databases were used in order to access the kind of analysis that has been employed for CT diagnosis in several samples. Our search combined the following combining terms: "congenital toxoplasmosis" or "gestational toxoplasmosis" and "diagnosis" and "blood," "serum," "amniotic fluid," "placenta," or "colostrum." We extracted data on true positive, true negative, false positive, and false negative to generate pooled sensitivity, specificity, and diagnostic odds ratio (DOR). Random-effects models using MetaDTA were used for analysis. Results: Sixty-five articles were included in the study aiming for comparisons (75.4%), diagnosis performance (52.3%), diagnosis improvement (32.3%), or to distinguish acute/chronic infection phases (36.9%). Amniotic fluid (AF) and placenta were used in 36.9% and 10.8% of articles, respectively, targeting parasites and/or T. gondii DNA. Blood was used in 86% of articles for enzymatic assays. Colostrum was used in one article to search for antibodies. In meta-analysis, PCR in AF showed the best performance for CT diagnosis based on the highest summary sensitivity (85.1%) and specificity (99.7%) added to lower magnitude heterogeneity. Conclusion: Most of the assays being researched to diagnose CT are basically the same traditional approaches available for clinical purposes. The range in diagnostic performance and the challenges imposed by CT diagnosis indicate the need to better explore pregnancy samples in search of new possibilities for diagnostic tools. Exploring immunological markers and using bioinformatics tools and T. gondii recombinant antigens should address the research needed for a new generation of diagnostic tools to face these challenges.

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OBJECTIVES: to compare exclusive breastfeeding prevalence versus artificial feeding in newborns of mothers with COVID-19. METHODS: a systematic review of prevalence, according to JBI. Searches in PubMed®, Embase, CINAHL, LILACS and Web of Science™ databases in August 2021. Cross-sectional, longitudinal or cohort studies were selected, without language and time limitations that showed breastfeeding prevalence or that allowed calculation. RESULTS: fifteen articles published in 2020 and 2021, cohort (60%) or cross-sectional (40%) were analyzed. The average of exclusive breastfeeding in mothers with COVID-19 was 56.76% (CI=39.90-72.88), and artificial breastfeeding, 43.23% (CI = 30.99 - 55.88), without statistically significant differences. CONCLUSIONS: despite the recommendations for maintaining breastfeeding, there was a reduction worldwide, when compared to periods prior to the pandemic. With advances in science, these rates have improved, showing the impact of evidence on practices. As limitations, study sources are cited. It is recommended to carry out new studies. PROSPERO registration CRD42021234486.

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OBJECTIVE: This study aimed to assess adverse maternal and perinatal outcomes in parturients undergoing labor analgesia. METHODS: This was a retrospective cohort study in parturients who underwent labor analgesia. Parturients were categorized into three groups: Group 1 (n=83)-analgesia performed with cervical dilatation ≤4.0 cm; Group 2 (n=82)-analgesia performed with cervical dilatation between 5.0 and 8.0 cm; and Group 3 (n=83)-analgesia performed with cervical dilatation ≥9.0 cm. RESULTS: Analgesia in parturients with cervical dilatation ≥9.0 cm showed a higher prevalence and a 3.86-fold increase (OR 3.86; 95%CI 1.50-9.87; p=0.009) in the risk of forceps delivery. Analgesia in parturients with cervical dilatation ≤4.0 cm showed a higher prevalence and a 3.31-fold increase (OR 3.31; 95%CI 1.62-6.77; p=0.0016) in the risk of cesarean section. Analgesia in parturients with cervical dilatation ≥9.0 cm was associated with a higher prevalence of fetal bradycardia (20.7%), a need for neonatal oxygen therapy (6.1%), and a need for admission to a neonatal intensive care unit (4.9%). Analgesia in parturients with cervical dilatation ≤4 cm was associated with a higher prevalence of Apgar score <7 at 1st minute (44.6%). CONCLUSION: Performing labor analgesia in parturients with cervical dilatation ≤4.0 or ≥9.0 cm was associated with a higher prevalence of adverse maternal and perinatal outcomes.

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No início do século 20, as altas taxas de mortalidade materna e infantil estimularam o desenvolvimento de um modelo de atendimento pré-natal que mantivesse características parecidas até os dias atuais. Nesse modelo, haveria maior concentração de visitas durante o final do terceiro trimestre de gestação, devido às maiores taxas de complicações nas fases finais da gestação e à dificuldade de prever a ocorrência de resultados adversos durante o primeiro trimestre. Atualmente, a avaliação clínica durante o primeiro trimestre, com auxílio da ultrassonografia e marcadores bioquímicos, pode prever uma série de complicações que acometem a gestação, incluindo cromossomopatias, pré-eclâmpsia, restrição de crescimento fetal, anomalias fetais e trabalho de parto pré-termo.

At the beginning of the 20th century, the high rates of maternal and infant mortality stimulated the development of a model of prenatal care that maintained similar characteristics until the present day. In this model, there would be a greater concentration of visits during the end of the third trimester of pregnancy, due to the higher rates of complications in the final stages of pregnancy and the difficulty in predicting the occurrence of adverse outcomes during the first trimester. Currently, clinical evaluation during the first trimester, with the aid of ultrasound and biochemical markers, can predict a series of complications that affect pregnancy, including chromosomal disorders, preeclampsia, fetal growth restriction, fetal anomalies and preterm labor.

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OBJECTIVE: The aim of this study was to evaluate the association between antibiotic prophylaxis and adverse perinatal outcomes in premature rupture of membranes. METHODS: This retrospective cohort included pregnant women with premature rupture of membranes (between 24 and 33+6 weeks) who used or did not use prophylactic antibiotics. Pearson's chi-square (χ²) test, Student's t-test, and binary logistic regression were used for statistical analysis. RESULTS: A significant effect was observed in patients with premature rupture of membranes using prophylactic antibiotics regarding amniotic fluid index (p=0.007), deepest vertical pocket (p=0.049), duration of antibiotic therapy (p≤0.001), C-reactive protein level upon admission (p≤0.001), leukocyte count upon admission (p=0.007), and length of stay in neonatal intensive care (p=0.047). A significant association was observed between the abovementioned patients and surfactant use during the neonatal period (p=0.04). A higher prevalence of surfactant use was noted in these patients (20.0 vs. 8.7%; p=0.04). CONCLUSION: No association was found between antibiotic prophylaxis and the presence of adverse perinatal outcomes in pregnant women with premature rupture of membranes between 24 and 33+6 weeks of gestation.

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SUMMARY OBJECTIVE: The aim of this study was to evaluate the association between antibiotic prophylaxis and adverse perinatal outcomes in premature rupture of membranes. METHODS: This retrospective cohort included pregnant women with premature rupture of membranes (between 24 and 33+6 weeks) who used or did not use prophylactic antibiotics. Pearson's chi-square (χ²) test, Student's t-test, and binary logistic regression were used for statistical analysis. RESULTS: A significant effect was observed in patients with premature rupture of membranes using prophylactic antibiotics regarding amniotic fluid index (p=0.007), deepest vertical pocket (p=0.049), duration of antibiotic therapy (p≤0.001), C-reactive protein level upon admission (p≤0.001), leukocyte count upon admission (p=0.007), and length of stay in neonatal intensive care (p=0.047). A significant association was observed between the abovementioned patients and surfactant use during the neonatal period (p=0.04). A higher prevalence of surfactant use was noted in these patients (20.0 vs. 8.7%; p=0.04). CONCLUSION: No association was found between antibiotic prophylaxis and the presence of adverse perinatal outcomes in pregnant women with premature rupture of membranes between 24 and 33+6 weeks of gestation.

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OBJECTIVE: To describe the ultrasonographic characteristics of congenital porto-systemic venous shunts (CPSS) diagnosed during pregnancy, their outcomes, and their evolution. METHODS: Two independent researchers selected 493 review articles and case reports through the analysis of titles, abstracts, and full text. The PubMed and LILACS databases were searched. Through the application of filters according to the PRISMA protocol, only six articles were used in the research. The following information was collected, when available: gestational age at diagnosis, gender, birth weight, type of shunt, associated anomalies/complications and treatment/progression. RESULTS: The data were obtained from 27 cases, with 22 (82%) fetuses diagnosed with intra-hepatic CPSS and 5 (18%) with extra-hepatic CPSS. The median time of intrauterine diagnosis was 33 weeks. In 12 (57.1%) of the 21 pregnancies evaluated, delivery was preterm. The estimated fetal weight ranged from 1150 to 3760 g, with 4 (25%) cases at <3rd, 3 (18.75%) cases at <10th, 8 (50%) cases at <50th, and 1 (6.25%) case at >97th percentile for gestational age. The most frequent obstetric complication was fetal growth restriction, which occurred in nine (60%) cases. As for postnatal treatment, 19 (70.4%) cases were conservatively treated, and 8 (29.6%) cases required surgical intervention. CONCLUSION: The diagnosis of CPSS still represents a challenge during prenatal care. Its early identification aims to provide guidance to pregnant women and their families, as well as follow-up and anticipation of possible complications, in addition to the evaluation of the mode of delivery and postnatal follow-up, directing the short- and long-term prognosis.

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SUMMARY OBJECTIVE: This study aimed to assess adverse maternal and perinatal outcomes in parturients undergoing labor analgesia. METHODS: This was a retrospective cohort study in parturients who underwent labor analgesia. Parturients were categorized into three groups: Group 1 (n=83)—analgesia performed with cervical dilatation ≤4.0 cm; Group 2 (n=82)—analgesia performed with cervical dilatation between 5.0 and 8.0 cm; and Group 3 (n=83)—analgesia performed with cervical dilatation ≥9.0 cm. RESULTS: Analgesia in parturients with cervical dilatation ≥9.0 cm showed a higher prevalence and a 3.86-fold increase (OR 3.86; 95%CI 1.50-9.87; p=0.009) in the risk of forceps delivery. Analgesia in parturients with cervical dilatation ≤4.0 cm showed a higher prevalence and a 3.31-fold increase (OR 3.31; 95%CI 1.62-6.77; p=0.0016) in the risk of cesarean section. Analgesia in parturients with cervical dilatation ≥9.0 cm was associated with a higher prevalence of fetal bradycardia (20.7%), a need for neonatal oxygen therapy (6.1%), and a need for admission to a neonatal intensive care unit (4.9%). Analgesia in parturients with cervical dilatation ≤4 cm was associated with a higher prevalence of Apgar score <7 at 1st minute (44.6%). CONCLUSION: Performing labor analgesia in parturients with cervical dilatation ≤4.0 or ≥9.0 cm was associated with a higher prevalence of adverse maternal and perinatal outcomes.

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ABSTRACT Objectives: to compare exclusive breastfeeding prevalence versus artificial feeding in newborns of mothers with COVID-19. Methods: a systematic review of prevalence, according to JBI. Searches in PubMed®, Embase, CINAHL, LILACS and Web of Science™ databases in August 2021. Cross-sectional, longitudinal or cohort studies were selected, without language and time limitations that showed breastfeeding prevalence or that allowed calculation. Results: fifteen articles published in 2020 and 2021, cohort (60%) or cross-sectional (40%) were analyzed. The average of exclusive breastfeeding in mothers with COVID-19 was 56.76% (CI=39.90-72.88), and artificial breastfeeding, 43.23% (CI = 30.99 - 55.88), without statistically significant differences. Conclusions: despite the recommendations for maintaining breastfeeding, there was a reduction worldwide, when compared to periods prior to the pandemic. With advances in science, these rates have improved, showing the impact of evidence on practices. As limitations, study sources are cited. It is recommended to carry out new studies. PROSPERO registration CRD42021234486.

RESUMEN Objetivos: comparar la prevalencia de lactancia materna exclusiva versus alimentación artificial en recién nacidos de madres con COVID-19. Métodos: revisión sistemática de prevalencia, según JBI. Búsquedas en las bases de datos PubMed®, Embase, CINAHL, LILACS y Web of Science™ en agosto de 2021. Se seleccionaron estudios transversales, longitudinales o de cohortes, sin limitaciones de idioma y tiempo que mostraran prevalencia de lactancia materna o que permitieran calcular. Resultados: se analizaron 15 artículos publicados en 2020 y 2021, de cohorte (60%) o transversal (40%). El promedio de lactancia materna exclusiva en madres con COVID-19 fue 56,76% (IC=39,90-72,88), y lactancia artificial, 43,23% (IC = 30,99 - 55,88), sin diferencias estadísticamente significativas. Conclusiones: a pesar de las recomendaciones de mantener la lactancia materna, hubo una reducción a nivel mundial, en comparación con períodos previos a la pandemia. Con los avances de la ciencia, estas tasas han mejorado, mostrando el impacto de la evidencia en las prácticas. Como limitaciones se citan las fuentes del estudio. Se recomienda realizar nuevos estudios. Registro PROSPERO CRD42021234486.

RESUMO Objetivos: comparar as prevalências de aleitamento materno exclusivo versus aleitamento artificial em recém-nascidos de mães com COVID-19. Métodos: revisão sistemática de prevalência, segundo JBI. Buscas nas bases PubMed®, Embase, CINAHL, LILACS e Web of Science™ em agosto de 2021. Selecionados estudos transversais, longitudinais ou coortes, sem limitação de idioma e tempo que apresentavam prevalência de aleitamento materno ou que permitissem o cálculo. Resultados: 15 artigos publicados em 2020 e 2021, coortes (60%) ou transversais (40%) foram analisados. A média de aleitamento materno exclusivo em mães com COVID-19 foi 56,76% (IC=39,90-72,88), e artificial, de 43,23% (IC = 30,99 - 55,88), sem diferenças estatisticamente significantes. Conclusões: apesar das recomendações para a manutenção do aleitamento materno, houve redução mundialmente, quando comparados à períodos anteriores à pandemia. Com avanços da ciência, esses índices têm melhorado, mostrando o impacto das evidências nas práticas. Como limitações, citam-se fontes dos estudos. Recomenda-se realização de novos estudos. Registro PROSPERO CRD42021234486.