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OBJECTIVE: Conflicting evidence for the association between COVID-19 and adverse perinatal outcomes exists. This study examined the associations between maternal COVID-19 during pregnancy and adverse perinatal outcomes including preterm birth (PTB), low birth weight (LBW), small-for-gestational age (SGA), large-for-gestational age (LGA) and fetal death; as well as whether the associations differ by trimester of infection. DESIGN AND SETTING: The study used a retrospective Mexican birth cohort from the Instituto Mexicano del Seguro Social (IMSS), Mexico, between January 2020 and November 2021. PARTICIPANTS: We used the social security administrative dataset from IMSS that had COVID-19 information and linked it with the IMSS routine hospitalisation dataset, to identify deliveries in the study period with a test for SARS-CoV-2 during pregnancy. OUTCOME MEASURES: PTB, LBW, SGA, LGA and fetal death. We used targeted maximum likelihood estimators, to quantify associations (risk ratio, RR) and CIs. We fit models for the overall COVID-19 sample, and separately for those with mild or severe disease, and by trimester of infection. Additionally, we investigated potential bias induced by missing non-tested pregnancies. RESULTS: The overall sample comprised 17 340 singleton pregnancies, of which 30% tested positive. We found that those with mild COVID-19 had an RR of 0.89 (95% CI 0.80 to 0.99) for PTB and those with severe COVID-19 had an RR of 1.53 (95% CI 1.07 to 2.19) for LGA. COVID-19 in the first trimester was associated with fetal death, RR=2.36 (95% CI 1.04, 5.36). Results also demonstrate that missing non-tested pregnancies might induce bias in the associations. CONCLUSIONS: In the overall sample, there was no evidence of an association between COVID-19 and adverse perinatal outcomes. However, the findings suggest that severe COVID-19 may increase the risk of some perinatal outcomes, with the first trimester potentially being a high-risk period.

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BACKGROUND: Intrauterine fetal demise is a recognized complication of coronavirus disease 2019 in pregnant women and is associated with histopathological placental lesions. The pathological mechanism and virus-induced immune response in the placenta are not fully understood. A detailed description of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-induced inflammation in the placenta during fetal demise is crucial for improved clinical management. CASE PRESENTATION: We report the case of a 27-week gestation SARS-CoV-2-asymptomatic unvaccinated pregnant woman without comorbidities or other risk factors for negative pregnancy outcomes with a diagnosis of intrauterine fetal demise. Histopathological findings corresponded to patterns of subacute inflammation throughout the anatomic compartments of the placenta, showing severe chorioamnionitis, chronic villitis and deciduitis, accompanied by maternal and fetal vascular malperfusion. Our immunohistochemistry results revealed infiltration of CD68+ macrophages, CD56+ Natural Killer cells and scarce CD8+ T cytotoxic lymphocytes at the site of placental inflammation, with the SARS-CoV-2 nucleocapsid located in stromal cells of the chorion and chorionic villi, and in decidual cells. CONCLUSION: This case describes novel histopathological lesions of inflammation with infiltration of plasma cells, neutrophils, macrophages, and natural killer cells associated with malperfusion in the placenta of a SARS-CoV-2-infected asymptomatic woman with intrauterine fetal demise. A better understanding of the inflammatory effects exerted by SARS-CoV-2 in the placenta will enable strategies for better clinical management of pregnant women unvaccinated for SARS-CoV-2 to avoid fatal fetal outcomes during future transmission waves.

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OBJECTIVES: to identify scientific evidence regarding nursing care for parents who have experienced grief following fetal demise. METHODS: an integrative review of original studies was conducted across six databases. The studies were classified according to the level of evidence. RESULTS: the qualitative analysis of the nine studies comprising the sample involved thematic categories, exploring the impact of perinatal loss on families, inadequate communication by healthcare professionals, and the importance of a holistic approach in care. The role of the nurse is highlighted in making a positive contribution to the team, emphasizing participation in training and the provision of essential information. FINAL CONSIDERATIONS: grieving affects not only family dynamics but also the social environment, emphasizing the urgency of a more empathetic and comprehensive approach. Care should be holistic, going beyond technical nursing assistance, and addressing the biopsychosocial context of the parents.

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Objetivo: Describir las características de los casos de óbito fetal reportados entre el año 2017 y 2021 en un hospital público de Perú. Métodos: Estudio descriptivo y transversal, que se realizó en los casos confirmados de muerte fetal en madres con edad gestacional mayor a 22 semanas presentados en el Hospital de Vitarte de Lima, Perú. La muestra estuvo conformada por 137 casos durante el periodo de 2017 a 2021. Se presentaron frecuencias y porcentajes. Resultados: La muerte fetal tuvo una tasa de 14,8 por 1 000 nacidos vivos. La mayoría de las mujeres tenía entre 20 y 24 años (27 %), además, el 70,1 % era conviviente, 92 % era ama de casa y 83,2% estudió hasta secundaria. Por otra parte, 50,4 % era multigesta y 29,9 % tuvo antecedente de aborto y 16,7 % antecedente de cesárea. La asistencia al servicio prenatal fue el más frecuente (67,2 %) y 29,2 % tenía sobrepeso. Respecto a las patologías maternas, el 38 % tuvo infección del tracto urinario, 17,5 % preeclampsia sin signos de seguridad y 2,9 % diabetes gestacional. Las malformaciones congénitas se presentaron en el 19 % de los casos; además, el 23,4 % de muertes fetales tuvo una causa materna. Conclusiones: La tasa de muerte fetal es alta. Los casos estuvieron caracterizados mayormente por madres con cualidades de vulnerabilidad social, además de presentar características de mayor riesgo obstétrico. Las causas maternas de muerte fetal fueron las más frecuentes(AU)

Objective: To describe the characteristics of fetal death cases reported between 2017 and 2021 in a public hospital in Peru. Methods: Descriptive and cross-sectional study, which was conducted in confirmed cases of fetal death in mothers with gestational age greater than 22 weeks presented at the Vitarte Hospital in Lima, Peru. The sample consisted of 137 cases during the period from 2017 to 2021. Frequencies and percentages were presented. Results: Fetal death had a rate of 14,8 per 1000 live births. Most of the women were between 20 and 24 years old (27%), in addition, 70,1% were cohabiting, 92% were housewives and 83,2% studied up to high school. On the other hand, 50,4% were multigestational and 29,9% had a history of abortion and 16,7% had a history of cesarean section. Prenatal service attendance was the most frequent (67,2%) and 29,2% were overweight. Regarding maternal pathologies, 38% had urinary tract infection, 17,5% had preeclampsia without signs of safety and 2,9% had gestational diabetes. Congenital malformations were present in 19% of cases; in addition, 23,4% of fetal deaths had a maternal cause. Conclusions: The rate of fetal death is high. The cases were characterized mostly by mothers with qualities of social vulnerability, in addition to presenting characteristics of higher obstetric risk. Maternal causes of fetal death were the most frequent(AU)

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BACKGROUND: The condition of monozygotic, monochorionic triplet fetuses with a pair of conjoined twins is extremely rare (close to one in a million births), presents challenges in its management, and with poor prognosis. CASE REPORT: We report a case of monochorionic diamniotic triplet pregnancy, ultrasound at 14 weeks shows a pair of conjoined thoracopagus fetuses, sharing heart, liver, and umbilical cord, in addition to omphalocele. The third fetus, without malformations, presents signs of early heart failure compatible with twin-to-twin transfusion syndrome. It was decided to carry out expectant management where at 18 weeks, intrauterine death of the three fetuses occurs. An abortion is performed by hysterotomy. CONCLUSIONS: The treatment in these cases is discussed, three management options have been proposed: expectant management, selective reduction of the conjoined fetuses, or termination of the pregnancy. A review of the literature found only 12 cases with this combination of pathologies, in which only 3 normal fetuses (25%) survived and none of the conjoined twins survived. To our knowledge, this case is the first of a monochorionic triplet pregnancy with conjoined fetuses complicated with early twin-to-twin transfusion.

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El documento contiene el procedimiento para la certificación de las defunciones que ocurran a nivel nacional y el correspondiente registro en el Sistema de Información de Defunciones (SINADEF)

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OBJECTIVES: To identify predictors of outcomes in severe twin oligo-polyhydramnios sequence (TOPS) with or without twin anemia-polycythemia sequence (TAPS) and/or selective fetal growth restriction (SFGR) treated by laser ablation of placental vessels (LAPV). METHODS: Analysis of cases treated from 2011 to 2022. Variables evaluated Prenatal predictors: stages of TOPS, presence of TAPS and/or SFGR; pre-LAPV fetal ultrasound parameters; peri-LAPV variables. Perinatal predictors: GA at birth; birthweight; Apgar scores; transfontanellar ultrasonography (TFUS). OUTCOME VARIABLES: fetal death, neonatal survival, infant's neurodevelopment. Binary logistic regression analyses were performed to detect predictors of outcomes. RESULTS: 265 cases were included. Predictors of post-LAPV donor fetus' death were delta EFW (p:0.045) and absent/reverse end-diastolic flow in the umbilical artery (AREDF-UA) (p < 0.001). The predictor of post-LAPV recipient fetus' death was hydrops (p:0.009). Predictors of neonatal survival were GA at birth and Apgar scores. Predictors of infant's neurodevelopment were TFUS and pre-LAPV middle cerebral artery Doppler (MCAD) for the donor twin; and pre-LAPV ductus venosus' flow and MCAD for the recipient twin. CONCLUSIONS: Prediction of fetal death, neonatal survival and infant's neurodevelopment is possible in cases of TOPS associated or not with SFGR and/or TAPS that were treated by LAPV.

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Resumo Este estudo tem por objetivo analisar a variação do número de óbitos fetais informados entre o Sistema de Estatísticas Vitais do Registro Civil (RC) e o Sistema de Informações sobre Mortalidade (SIM) e comparar a tendência da taxa de mortalidade fetal (TMF) de ambos os sistemas no Brasil, para o período 2009-2019. A variação percentual (VP) foi analisada por meio da comparação entre as fontes de dados para os óbitos fetais precoces (<28 semanas) e tardios (≥28 semanas). Os clusters de unidades da federação foram obtidos pelo método k-means. Aplicou-se a regressão linear generalizada de Prais-Winsten na análise da tendência da TMF. O SIM demonstrou percentual de captação 27,7% superior ao RC no período estudado. Houve maior número de óbitos fetais informados no SIM para o Brasil e regiões, em ambos os estratos de óbitos. As regiões Norte e Nordeste apresentaram as maiores VP em oposição às regiões mais desenvolvidas do país, Sudeste e Sul, onde verificou-se uma convergência de 95%. Apesar da redução da VP na década analisada, as estimativas de tendência da TMF permaneceram subestimadas no RC. Conclui-se que a captação dos óbitos fetais foi maior no SIM, sobretudo nas regiões Norte e Nordeste, reconhecidas como as mais vulneráveis do país.

Abstract This study aimed to analyze the variation in the number of stillbirths reported between the vital statistics system of the Civil Registry (RC) and the Mortality Information System (SIM) as well as to compare the trend in stillbirth rates (SBR) in both systems in Brazil between 2009 and 2019. Percent change (PC) was analyzed by comparing data sources for early (<28 weeks) and late (≥28 weeks) stillbirths. Clusters of Federation Units were obtained using the k-means method. Prais-Winsten generalized linear regression was applied in the analysis of the SBR trend. The SIM showed a percentage of uptake 27.7% higher than RC in the period. A higher number of fetal deaths were reported on the SIM for Brazil and its regions, in both death strata. The North and Northeast regions presented the highest PC, as opposed to the most developed regions of the country, Southeast and South, where there was a convergence of 95%. Despite the reduction in PC in the decade analyzed, the SBR trend estimates remained underestimated in the RC. The conclusion, that the capture of fetal deaths was higher in the SIM, demonstrates the need for improvements in civilian registration of stillbirths, especially in the North and Northeast regions, recognized as the most vulnerable in the country.

Resumen Este estudio tuvo como objetivo analizar la variación en el número de muertes fetales notificadas entre el sistema de estadísticas vitales del Registro Civil (RC) y el Sistema de Información de Mortalidad (SIM) y comparar la tendencia de la Tasa de Mortalidad Fetal (TMF) de ambos sistemas en Brasil entre 2009 y 2019. El cambio porcentual (CP) se analizó comparando fuentes de datos para muertes fetales tempranas (< 28 semanas) y tardías (≥ 28 semanas). Los conglomerados de unidades de la federación se obtuvieron mediante el método de k-means. Se aplicó la regresión lineal generalizada Prais-Winsten en el análisis de la tendencia TMF. El SIM mostró un porcentaje de captación 27,7 % superior al del RC en el período. Hubo mayor número de muertes fetales reportadas en el SIM para Brasil y regiones, en ambos estratos de muerte. Las regiones Norte y Noreste tuvieron el CP más alto en comparación con las regiones más desarrolladas del país, Sudeste y Sur, donde hubo convergencia del 95 %. A pesar de la reducción del CP en la década analizada, las estimaciones de tendencia de la TMF permanecieron subestimadas en el RC. Se concluye que la captura de las defunciones fetales fue mayor en el SIM, demostrando la necesidad de mejoras en el registro civil de las defunciones fetales, especialmente en las regiones Norte y Nordeste, reconocidas como las más vulnerables del país.

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RESUMEN La mortalidad perinatal es un indicador que refleja el impacto de la atención materno-infantil de un país. Este estudio presenta nueve casos de la mortalidad perinatal ocurridos en el municipio de Panchimalco, El Salvador. La información se obtuvo de los informes de auditorías. Las madres de los fallecidos tenían edades entre 17 a 43 años, sin uso de anticonceptivos, con controles prenatales incompletos y un promedio de edad gestacional de 31 semanas, tres partos fueron atendidos en la comunidad. La mayoría de muertes perinatales ocurrieron antes del parto de causa desconocida y los nacidos vivos fueron prematuros. Se identificaron factores como el déficit en la atención integral a la mujer. Se requiere de nuevos estudios para determinar los principales factores que influyen en las muertes perinatales en El Salvador.

ABSTRACT Perinatal mortality is an indicator that reflects the impact of maternal and infant care in a country. This study presents nine cases of perinatal mortality that occurred in the municipality of Panchimalco, El Salvador. The information was obtained from audit reports. The mothers of the deceased infants were aged between 17 and 43 years, did not use contraceptive methods, had incomplete prenatal controls and averaged a gestational age of 31 weeks. Three deliveries were attended in the community. Most perinatal deaths occurred before delivery due to unknown causes, and live births were preterm. We identified factors such as deficits in comprehensive care for women. Further studies are needed to determine the main factors influencing perinatal deaths in El Salvador.

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OBJECTIVE: The aim of this study was to evaluate the rates of fetal mortality in a Peruvian hospital between 2001 and 2020 and to investigate the association of indicators of social inequality (such as access to prenatal care and education) with fetal mortality. METHODOLOGY: We conducted a retrospective cohort study, including all pregnant women who attended a Peruvian hospital between 2001 and 2020. We collected data from the hospital's perinatal computer system. We used Poisson regression models with robust variance to assess the associations of interest, estimating adjusted relative risks (aRR) and their 95% confidence intervals (95% CI). RESULTS: We analyzed data from 67,908 pregnant women (median age: 26, range: 21 to 31 years). Of these, 58.3% had one or more comorbidities; the most frequent comorbidities were anemia (33.3%) and urinary tract infection (26.3%). The fetal mortality ratio during the study period was 0.96%, with the highest rate in 2003 (13.7 per 1,000 births) and the lowest in 2016 (6.1 per 1,000 births), without showing a marked trend. Having less than six (aRR: 4.87; 95% CI: 3.99-5.93) or no (aRR: 7.79; 6.31-9.61) prenatal care was associated with higher fetal mortality compared to having six or more check-ups. On the other hand, higher levels of education, such as secondary education (aRR: 0.73; 0.59-0.91), technical college (aRR: 0.63; 0.46-0.85), or university education (aRR: 0.38; 0.25-0.57) were associated with a lower risk of fetal death compared to having primary education or no education. In addition, a more recent year of delivery was associated with lower fetal mortality. CONCLUSION: Our study presents findings of fetal mortality rates that are comparable to those observed in Peru in 2015, but higher than the estimated rates for other Latin American countries. A more recent year of delivery was associated with lower fetal mortality, probably due to reduced illiteracy and increased access to health care between 2000 and 2015. The findings suggest a significant association between indicators of social inequality (such as access to prenatal care and education) with fetal mortality. These results emphasize the critical need to address the social and structural determinants of health, as well as to mitigate health inequities, to effectively reduce fetal mortality.

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