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Purpose: This study explores the impact of gestational diabetes mellitus (GDM) subtypes classified by oral glucose tolerance test (OGTT) values on maternal and perinatal outcomes. Patients and Methods: This multicenter prospective cohort study (May 2019-December 2022) included participants from the Mexican multicenter cohort study Cuido mi Embarazo (CME). Women were classified into four groups per 75-g 2-h OGTT: 1) normal glucose tolerance (normal OGTT), 2) GDM-Sensitivity (isolated abnormal fasting or abnormal fasting in combination with 1-h or 2-h abnormal results), 3) GDM-Secretion (isolated abnormal values at 1-h or 2-h or their combination), and 4) GDM-Mixed (three abnormal values). Cesarean delivery, neonates large for gestational age (LGA), and pre-term birth rates were among the outcomes compared. Between-group comparisons were analyzed using either the t-test, chi-square test, or Fisher's exact test. Results: Of 2,056 Mexican pregnant women in the CME cohort, 294 (14.3%) had GDM; 53.7%, 34.4%, and 11.9% were classified as GDM-Sensitivity, GDM-Secretion, and GDM-Mixed subtypes, respectively. Women with GDM were older (p = 0.0001) and more often multiparous (p = 0.119) vs without GDM. Cesarean delivery (63.3%; p = 0.02) and neonate LGA (10.7%; p = 0.078) were higher in the GDM-Mixed group than the overall GDM group (55.6% and 8.4%, respectively). Pre-term birth was more common in the GDM-Sensitivity group than in the overall GDM group (10.2% vs 8.5%, respectively; p=0.022). At 6 months postpartum, prediabetes was more frequent in the GDM-Sensitivity group than in the overall GDM group (31.6% vs 25.5%). Type 2 diabetes was more common in the GDM-Mixed group than in the overall GDM group (10.0% vs 3.3%). Conclusion: GDM subtypes effectively stratified maternal and perinatal risks. GDM-Mixed subtype increased the risk of cesarean delivery, LGA, and type 2 diabetes postpartum. GDM subtypes may help personalize clinical interventions and optimize maternal and perinatal outcomes.

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PURPOSE: Postpartum hemorrhage (PPH) is a leading cause of maternal mortality worldwide. Although several studies on the prophylactic use of tranexamic acid (TXA) in parturients undergoing Cesarean delivery have been published, conflicting results raise questions regarding its use. Thus, we aimed to investigate the safety and efficacy of PPH prophylaxis with TXA. SOURCE: We searched PubMed®, Embase, Cochrane Central, and ClinicalTrials.gov for randomized controlled trials (RCTs) comparing prophylactic TXA with placebo or no treatment in parturients undergoing Cesarean delivery. Our main outcomes were PPH, any blood transfusion, need for additional uterotonics, and adverse events. We performed a trial sequential analysis (TSA) of all outcomes to investigate the reliability and conclusiveness of findings. PRINCIPAL FINDINGS: We included 38 RCTs including 22,940 parturients, 11,535 (50%) of whom were randomized to receive prophylactic TXA. Patients treated with TXA had significantly fewer cases of PPH (risk ratio [RR], 0.51; 95% confidence interval [CI], 0.38 to 0.69; P < 0.001); less blood transfusion (RR, 0.43; 95% CI, 0.30 to 0.61; P < 0.001), and less use of additional uterotonics (RR, 0.52; 95% CI, 0.40 to 0.68; P < 0.001). No significant differences were found between the groups in terms of adverse effects and thromboembolic events. CONCLUSION: Prophylactic TXA administration for parturients undergoing Cesarean delivery significantly reduced blood loss, without increasing adverse events, supporting its use as a safe and effective strategy for reducing PPH in this population. STUDY REGISTRATION: PROSPERO (CRD42023422188); first submitted 27 April 2023.

RéSUMé: OBJECTIF: L'hémorragie du post-partum (HPP) est l'une des principales causes de mortalité maternelle dans le monde. Bien que plusieurs études sur l'utilisation prophylactique d'acide tranexamique (TXA) chez les personnes parturientes ayant accouché par césarienne aient été publiées, des résultats contradictoires soulèvent des questions quant à son utilisation. Ainsi, nous avons cherché à étudier l'innocuité et l'efficacité de la prophylaxie à base de TXA pour l'HPP. SOURCES: Nous avons fait une recherche sur PubMed®, Embase, Cochrane Central et ClinicalTrials.gov pour en tirer les études randomisées contrôlées (ERC) comparant le TXA prophylactique à un placebo ou à l'absence de traitement chez les personnes parturientes accouchant par césarienne. Nos principaux critères d'évaluation étaient l'HPP, toute transfusion sanguine, la nécessité d'un utérotonique supplémentaire et les événements indésirables. Nous avons effectué une analyse séquentielle des études pour tous les résultats afin d'examiner la fiabilité et le caractère concluant des conclusions. CONSTATATIONS PRINCIPALES: Nous avons inclus 38 ERC comprenant 22 940 personnes parturientes, dont 11 535 (50 %) ont été randomisées pour recevoir du TXA prophylactique. La patientèle traitée par TXA présentait significativement moins de cas d'HPP (risque relatif [RR], 0,51; intervalle de confiance [IC] à 95 %, 0,38 à 0,69; P < 0,001); moins de transfusion sanguine (RR, 0,43; IC 95 %, 0,30 à 0,61; P < 0,001) et moins d'utilisation d'utérotoniques supplémentaires (RR, 0,52; IC 95 %, 0,40 à 0,68; P < 0,001). Aucune différence significative n'a été constatée entre les groupes en termes d'effets indésirables et d'événements thromboemboliques. CONCLUSION: L'administration prophylactique de TXA pour les personnes parturientes accouchant par césarienne a considérablement réduit les pertes de sang sans augmenter les événements indésirables, ce qui soutient son utilisation comme stratégie sécuritaire et efficace pour réduire l'HPP dans cette population. ENREGISTREMENT DE L'éTUDE: PROSPERO (CRD42023422188); première soumission le 27 avril 2023.

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BACKGROUND: In worldwide literature, it has been found that cesarean deliveries represent higher costs and are associated with maternal morbidity and other complications. OBJECTIVE: This study aimed to estimate the cost-effectiveness of elective cesarean delivery compared with spontaneous vaginal delivery in short-term maternal outcomes for low-risk obstetrical population in Colombia. STUDY DESIGN: A cost-effectiveness study using a healthcare-system perspective was performed in 2019 in Colombia. The reference population were women with full-term and low-risk pregnancy, either by spontaneous vaginal delivery or elective cesarean delivery under medical or nonmedical indications. An analytical decision model (decision tree) was designed for maternal outcomes. The time horizon was 42 days postpartum, and the health effects were measured by Quality Adjusted Life Years. A review of the literature and a validation process by a national expert committee were conducted to determine the maternal outcomes and estimate their probabilities. Costs were estimated with a top-down analysis, an incremental cost-effectiveness ratio was calculated, and finally, a sensitivity analysis was performed. RESULTS: Within a 42-day time horizon, it was found that spontaneous vaginal delivery is the less-expensive and more-effective mode of delivery, it showed a reduction in costs (324 USD) and a gain in Quality Adjusted Life Years (0.03) compared with elective cesarean delivery. Our analysis suggests that spontaneous vaginal delivery is the dominant alternative compared with elective cesarean delivery. CONCLUSION: Spontaneous vaginal delivery showed to be the cost-effective mode of delivery for low-risk obstetrical population in Columbia. These results are useful not only for obstetricians but for decision makers, who should encourage nationwide health policies in favor of spontaneous vaginal delivery.

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La edad materna avanzada guarda relación directamente proporcional con el riesgo de complicaciones obstétricas y no obstétricas durante la gestación, tanto para la gestante como para el feto. Esto es particularmente importante debido a que a las tasas de fecundidad de las mujeres de mayor edad han aumentado. En Estados Unidos, el 10% del primer nacimiento y el 20% de todos los nacimientos ocurren en mujeres con 35 años o más. Históricamente la edad materna avanzada se ha definido como una edad mayor o igual a 35 años, punto de corte que sustentado en la disminución de la fecundidad y el mayor riesgo de anomalías genéticas en la descendencia de las mujeres mayores a esta edad. Sin embargo, los efectos relacionados al aumento de edad son continuos y el riesgo es mayor mientras mayor sea la edad al momento de la concepción más que como efecto de pasar el umbral de los 35 años. Diferentes investigaciones han mostrado que las gestantes añosas tienen mayor riesgo de complicaciones tempranas de la gestación como aborto espontáneo, embarazo ectópico, anomalías cromosómicas y malformaciones congénitas, así como, preeclampsia, diabetes gestacional, patología placentaria, parto pretérmino, peso bajo al nacer, mortalidad perinatal, embarazo múltiple, parto distócico, parto por cesárea y mortalidad materna. En este artículo se revisa publicaciones recientes sobre el tema y se incluye estadística de un importante hospital de Lima, Perú, y de la Encuesta Nacional de Demografía y Salud Familiar - ENDES 2022.

Advanced maternal age is directly proportional to the risk of obstetric and nonobstetric complications during gestation, both for the pregnant woman and the fetus. This is particularly important because the fertility rates of older women have increased. In the US, 10% of first births and 20% of all births occur to women 35 years of age or older. Historically, advanced maternal age has been defined as an age greater than or equal to 35 years, a cutoff point that is supported by declining fertility and the increased risk of genetic abnormalities in the offspring of women older than this age. However, the effects related to increasing age are continuous and the risk is greater the older the age at conception rather than as an effect of passing the 35 years threshold. Research has shown that older pregnant women are at increased risk of early pregnancy complications such as miscarriage, ectopic pregnancy, chromosomal abnormalities and congenital malformations, as well as, preeclampsia, gestational diabetes, placental pathology, preterm delivery, low birth weight, perinatal mortality, multiple pregnancy, dystocic delivery, cesarean delivery and maternal mortality. This article reviews recent publications on the subject and includes statistics from a major hospital in Lima, Peru, and from the National Demographic and Family Health Survey - ENDES, 2022.

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BACKGROUND: Mother-to-child transmission (MTCT) of human T-lymphotropic virus type 1 (HTLV-1) is an important route of transmission that can cause lifelong infection. There is high morbidity and mortality due to adult T-cell leukemia/lymphoma, HTLV-1-associated myelopathy (HAM), and other inflammatory disorders. These conditions develop in nearly 10% of people with HTLV-1 infection, with a higher risk if infection occurs early in life. Identification of risk factors can inform targeted measures to reduce HTLV-1 MTCT. This study aimed to investigate the potential of cesarean delivery to prevent HTLV-1 MTCT. METHODS: We performed a review of the cases of women and their offspring under regular follow-up at the HTLV-1 outpatient clinic at the Institute of Infectious Diseases Emilio Ribas. RESULTS: A total of 177 HTLV-1-infected women and 369 adult offspring were investigated. Overall, 15% of the children were positive for HTLV-1 and 85% were negative. Regarding vertical transmission, we found that a breastfeeding duration of >6 months was associated with MTCT. Moreover, maternal proviral load was not associated with transmission, but high educational level and cesarean delivery were identified as protective factors. CONCLUSIONS: HTLV-1 MTCT was associated with mother's age at delivery of >25 years, low educational level, prolonged breastfeeding, and vaginal delivery.

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BACKGROUND: Childbirth via cesarean delivery can prevent intrapartum vertical transmission for women who are not virally suppressed at the time of delivery. Few studies have compared cesarean delivery trends between women living with HIV and women without HIV and have examined the role of cesarean delivery in the prevention of vertical transmission in the era of potent combination antiretroviral therapy. OBJECTIVE: We hypothesized that the cesarean delivery rate is high in women living with HIV compared with women without HIV and that cesarean delivery usage decreases over time among women living with HIV with advances in combined antiretroviral therapy in a country with a high national cesarean delivery rate. This study aimed (1) to evaluate cesarean delivery trends in women with and without HIV and (2) to examine its role in preventing vertical transmission among women living with HIV in a setting of free, universal combined antiretroviral therapy coverage in a retrospective cohort of nearly 56,000 deliveries at a major referral institution in a city with the highest prevalence of maternal HIV in Brazil. STUDY DESIGN: Data from maternal-infant pairs from January 1, 2008, to December 31, 2018, were extracted. Cesarean delivery rates were compared using the Pearson chi-square test. Cesarean delivery predictors were evaluated by multivariate log-linear Poisson regression using a generalized estimating equations approach. HIV viral suppression was defined as a viral load of <1000 copies/ml at delivery. HIV vertical transmission was determined following national guidelines. RESULTS: Over 11 years, 48,688 pregnancies occurred in 40,375 women; HIV seroprevalence was 2.7%; 18,886 cesarean deliveries (38.8%) were performed; 47.7% of women living with HIV and 38.6% of women without HIV underwent cesarean delivery (P<.001). Although HIV was associated with cesarean delivery (adjusted relative risk, 1.17 [95% confidence interval, 1.05-1.29]), women living with HIV with vertical transmission achieved similar cesarean delivery rates (36.7%) as women without HIV (39.8%) in 2018. Cesarean delivery in women living with HIV with an unknown viral load at delivery (42.6%) did not increase over time. HIV vertical transmission rate was 2.2%, the highest in women living with HIV with an unknown viral load (8.4%) vs women living with HIV without vertical transmission (4.1%) and women living with HIV with vertical transmission (0.5%) (P<.001). CONCLUSION: In the HIV epicenter of Brazil, women living with HIV with vertical transmission had fewer surgical deliveries, likely because of the use of potent combination antiretroviral therapy. Nearly half of the women living with HIV with an unknown viral load did not undergo cesarean delivery, a potential missed opportunity for the prevention of HIV vertical transmission.

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Introduction: Chronic constipation (CC) is a highly prevalent disease in Western society. Chronic constipation can have a different etiology in patients who underwent a cesarean section and result from postoperative stress and metabolic response to trauma, analgesic agents, immobilization, and dietary restrictions. Chronic constipation may also occur due to puerperium-related psychological changes and to the stretching and weakening of the perineal and abdominal muscles after childbirth. Objectives: The present study analyzes intestinal transit restoration after a cesarean section and the influence of osmotic laxative agents. Methods: The present prospective, nonrandomized sample study used the ROME III questionnaire and the Bristol stool scale in adult women who underwent a cesarean section. We divided the subjects into 2 groups, each with 30 patients, to compare the effect of the prophylactic administration of an osmotic laxative. Results: We evaluated 60 randomly-chosen pregnant women from the Obstetrics ward of Hospital Santa Marcelina, São Paulo, SP, Brazil, from October 2019 to March 2020. Their mean age was 26.8 years old, and the mean gestation time was 37.95 weeks. Ten patients (16.7%) presented with constipation before the cesarean section, and 38 (63.3%) had a bowel movement after the procedure. However, in 84.2% of these patients, the usual stool consistency worsened. After the cesarean section, 46.7% of the women who did not receive laxative agents had a bowel movement, compared with 80% of those who did (p = 0.0074). Conclusion: Some factors, including those related to the procedure, may hamper intestinal transit restoration after a cesarean section. Osmotic laxative agents can facilitate transit restoration with no negative effects in this group of patients. (AU)

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Introdução: O centro do conceito de humanização é a dignidade e o respeito à vida humana, enfatizando a dimensão ética na relação entre pacientes e profissionais de saúde. O tema humanização na área da saúde é de extrema relevância, uma vez que consagra como premissa básica o atendimento de qualidade ao paciente. Os profissionais de enfermagem envolvidos especialmente no processo do parto cesariana devem oferecer assistência qualificada, acolhedora e humanizada. Objetivo: Avaliar a assistência de enfermagem no parto cesariana, no centro obstétrico sob o olhar da humanização. Métodos: Tratou-se de um estudo exploratório de abordagem qualitativa. Participaram do estudo 10 profissionais de enfermagem, sendo 6 enfermeiras obstetras e 4 técnicas em enfermagem, todas do sexo feminino, idade entre 25 e 38 anos, tempo de atuação na área entre 1 e 13 anos. A coleta de dados foi configurada por meio de entrevista semiestruturada, e análise de dados por categorização dos dados. Resultados e Conclusão: A equipe de enfermagem está humanizando o parto cesariana, de acordo com as diretrizes do Ministério da Saúde, mesmo com a limitação do parto cirúrgico, a cena se configura no binômio e família, observou-se o respeito à escolha do acompanhante, sala aquecida e na penumbra, contato pele a pele, corte tardio do cordão umbilical, e aleitamento na primeira hora do parto, além do envolvimento da equipe de enfermagem, demonstrando respeito à individualidade, ética e postura proativa no que se refere ao parto em cena.

Introduction: At the core of the concept of humanization are dignity and respect to human life, emphasizing the ethical dimension of the relationship between patients and healthcare professionals. The matter of humanization in healthcare is extremely relevant as it establishes quality patient care as a basic premise. Nursing professionals especially involved in the cesarian delivery process should offer qualified, welcoming, and humanized care. Objective: To evaluate nursing care during cesarean deliveries at an obstetric unit from the viewpoint of humanization. Methods: This is an exploratory study with a qualitative approach. Participants were 10 nursing professionals, of which 6 were obstetric nurses and 4 were practical nurses; all of them were female, aged between 25 and 38 years, and had been working in nursing for 1 to 13 years. Data collection was performed via a semistructured interview, and data analysis was done by categorizing data. Results and conclusion: The nursing team is humanizing cesarian deliveries, according to guidelines by the Ministry of Health; despite the limitations of surgical delivery, the scene revolves around the binome and the family, and we observed respect for the choice of support partner, heated room, dimmed lights, skin-to-skin contact, delayed umbilical cord clamping, and breastfeeding in the first postpartum hour. In addition, the involvement of the nursing team demonstrated respect to individuality, ethics, and a proactive approach when considering the delivery scene.

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OBJECTIVE: This study aimed to evaluate if manual rotation, undertaken during labor, of fetuses in occiput posterior or occiput transverse position led to an increased rate of spontaneous vaginal delivery. DATA SOURCES: Searches were performed in MEDLINE, Ovid, Scopus, ClinicalTrials.gov, and the Cochrane Central Register of Controlled Trials with the use of a combination of keywords and text words related to "occiput posterior," "occiput transverse," and "manual rotation" from inception of the databases to July 2021. STUDY ELIGIBILITY CRITERIA: We included all randomized controlled trials evaluating manual rotation of fetuses in the occiput posterior or occiput transverse position during labor. METHODS: The primary outcome was the rate of spontaneous vaginal delivery. Meta-analyses were performed using the random effects model of DerSimonian and Laird to determine the relative risks or mean differences with 95% confidence intervals. RESULTS: A total of 643 records were screened with inclusion of 6 articles and 1002 randomized patients. All included studies compared manual rotation of fetuses in occiput posterior or occiput transverse position, all confirmed using ultrasound examinations, after complete cervical dilation with either no rotation or a sham rotation procedure. There was no difference in the rate of spontaneous vaginal delivery with manual rotation (relative risk, 1.07; 95% confidence interval, 0.95-1.20) nor was there any difference in any other maternal or fetal outcomes. In a subgroup analysis of occiput posterior fetuses, there was a 12.80-minute decrease in the length of the second stage of labor in the manual rotation group (mean difference, -12.80; 95% confidence interval, -22.61 to -2.99). There were no significant differences in any other maternal or fetal outcomes in the occiput posterior subgroup and no differences in the occiput transverse subgroup. CONCLUSION: Prophylactic manual rotation of fetuses in occiput posterior or occiput transverse position, confirmed using ultrasound examination, did not increase the rate of spontaneous vaginal delivery compared with no manual rotation. Manual rotation of the occiput posterior fetal head early during the second stage of labor was associated with a significant 12.8-minute decrease in the length of the second stage of labor with no changes in any other maternal or fetal outcomes. There were no differences demonstrated for fetuses rotated from occiput transverse position or for the combination of occiput posterior and occiput transverse fetuses. Because there is some evidence of benefit, prophylactic manual rotation can be offered to patients during the second stage of labor presenting with occiput posterior position of the fetal head documented during ultrasound examination.

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OBJECTIVE: To study the relationship between cesarean Delivery (CD) and overweight in preschool children, considering the presence of birth aspects and demographic characteristics that have been associated with the risk of excess weight. METHODS: This retrospective cross-sectional analysis used representative data of children from 2 to 6 years of age at municipal daycare centers in Taubaté, São Paulo, Brazil. The sample included 752 preschoolers. Weight and height were collected in daycare centers, and the nutritional status classification was performed using z scores of Body Mass Index (zBMI). Data analysis was performed in the bivariate and multivariate manner, the latter with the inclusion of another possible risk factor. Adjustments were made for daycare centers time, sex, birth length and weight and maternal schooling. RESULTS: The mean age of preschool children was 4.7 years, and 53.8% were boys. The prevalence of overweight children was 21.7%. The median zBMI of the children born by CD was higher than that of vaginal Delivery (p = 0.0194). The prevalence of overweight showed association with CD (p = 0.0196; PR = 1.397 with 95% CI of 1065-1831). Logistic binary multivariate regression analysis confirmed the association, even in the presence of other possible risk factors (CR: 1.580, 95% CI: 1.072-2.330). CONCLUSION FOR PRACTICE: Birth by CD is one of the factors that are associated with the early development of overweight in preschoolers.

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BACKGROUND: Erector spinae plane block (ESPB) is a recently described block. In many reports, ESPB has been reported to provide effective postoperative analgesia in patients undergoing cesarean delivery (CD). Herein, we compared the effectiveness of ESPB and control group in postoperative analgesia in patients undergoing CD under spinal anesthesia. METHODS: This assessor-blinded, prospective, randomized, efficiency study was conducted in the postoperative recovery room and ward at a tertiary university hospital. Eighty-six patients ASA II-III were recruited. Following exclusion, 80 patients were randomized into two equal groups (block and control group). Standard multimodal analgesia was performed in the control group while ESPB block was performed in the intervention (ESPB) group. Opioid consumption was measured and pain intensity between groups was compared using Numeric Rating Scores (NRS). RESULTS: NRS was lower in Group ESPB at 3rd and 6th hours. There was no difference between NRS scores at other hours. Opioid consumption was lower in Group ESPB. CONCLUSION: When added to multimodal analgesia, bilateral ultrasound guided low thoracic ESPB leads to improve the quality of analgesia in the first 24 hours in patients undergoing CD.

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OBJECTIVE: To identify clinical and demographic factors associated with missing strings and expulsion after postplacental insertion of copper T380A intrauterine devices (TCu380A IUD). METHODS: This is a secondary analysis of an implementation study. We followed participants who had a postplacental TCu380A IUD insertion, at two postpartum visits: 45-90 days (visit 1) and 6-9 months (visit 2). We used multiple log-binomial regression models to evaluate the demographic and clinical variables associated with missing strings and with IUD expulsion. RESULTS: We included 705 participants who had a postplacental IUD insertion. We observed missing strings in 275 (47.9%) participants at visit 1, and in 127 (34.2%) participants at visit 2. We identified 61 expulsions (8.9%) by visit 2. In the multiple regression models, only the delivery type was associated with missing strings and expulsion. Compared with vaginal delivery, cesarean delivery increased the risk of missing strings (adjusted relative risk [aRR] 6.21; 95% confidence interval [CI] 4.29-8.99) but reduced the risk of IUD expulsion (aRR 0.24; 95% CI 0.13-0.43). CONCLUSION: The delivery mode was the only factor associated with missing strings and expulsion after postplacental IUD insertion. Cesarean section was associated with an increased risk of missing strings but decreased risk of expulsion after postplacental TCu380A IUD insertion.

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Objetivo: Este artigo de revisão sistemática tem como objetivo analisar as principais características relacionadas à infeção puerperal em mulheres submetidas ao parto cesáreo. Fonte dos dados: Foi realizada busca nas bases de dados on-line Biblioteca Virtual de Saúde (BVS) e PubMed. Seleção dos estudos: Selecionaram-se artigos publicados nos últimos 11 anos (2010-2021), totalizando 12 artigos analisados. Coleta de dados: Realizou-se a busca dos artigos a partir dos descritores infecção puerperal, mortalidade materna, cesárea, fatores de risco em inglês e português. Em seguida à adequação aos critérios de inclusão (artigos em inglês, português e espanhol, com publicação nos últimos 11 anos, realizados em humanos) e exclusão (artigos duplicados, revisão de literatura, estudos de caso e dissertações), a análise dos títulos e dos resumos dos artigos encontrados permitiu a exclusão daqueles que se afastavam do tema em estudo. Síntese dos dados: Dentre os fatores sociodemográficos, destacam-se mulheres nos extremos de idade, negras, residentes na zona rural, com baixo nível econômico e escolar, primíparas e tabagistas. Em relação aos fatores clínicos, obesidade, HIV, diabetes mellitus, doenças cardiovasculares, hipertensão arterial, pré-eclâmpsia e eclâmpsia, anemia e infecções geniturinárias apresentaram-se como fatores de risco para infecção puerperal. Fatores obstétricos também foram avaliados, identificando-se como variáveis importantes o parto cesáreo, rotura prematura de membranas, tempo de membrana rota, trabalho de parto maior que 12 horas, parto prematuro e trabalho de parto induzido, hemorragia pós-parto, transfusão prévia e mecônio em líquido amniótico. Por fim, as características assistenciais trazem o baixo número de consultas de pré-natal e número de toques vaginais antes e após a ruptura de membranas como variáveis de risco. Conclusão: Muitos dos fatores identificados são passíveis de controle, e a sua reversão contribui para a redução dos índices de infecção puerperal e, consequentemente, de mortalidade materna.(AU)

Objective: This systematic review article aims to analyze the main characteristics related to puerperal infection in women undergoing cesarean delivery. Source of data: A search was performed in the online databases Virtual Health Library (VHL) and Pub- Med. Selection of studies: Articles published in the last 11 years were selected, totaling 12 analyzed articles. Data collection: Articles were searched based on the keywords puerperal infection, maternal mortality, cesarean section, risk factors in English and Portuguese. Following the adaptation to the inclusion criteria (articles in English, Portuguese and Spanish, publication in the last 11 years, carried out in humans) and exclusion (duplicates, literature review, case studies and dissertations), the analysis of the titles and abstracts of the found articles allowed the exclusion of those who departed from the topic under study. Summary of the findings: Among the sociodemographic factors, women of extreme age, blacks, residents in the rural area, with low economic and educational status, primiparous women and smokers, stand out. Regarding clinical factors, obesity, HIV, Diabetes Mellitus, Cardiovascular Diseases, Hypertension, Pre-eclampsia and Eclampsia, Anemia and genitourinary infections were risk factors for puerperal infection. Obstetric factors were also evaluated, identifying as important variables cesarean delivery, premature rupture of membranes, ruptured membrane time, labor longer than 12 hours, premature labor and induced labor, postpartum hemorrhage, previous transfusion and meconium in amniotic fluid. Finally, the care characteristics bring the low number of prenatal consultations, the number of vaginal touches before and after rupture of membranes as risk variables. Conclusion: Many of the identified factors are possible to control and their reversion contributes to the reduction of puerperal infection rates and consequently maternal mortality.(AU)

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RESUMEN Fundamento: La fascitis necrotizante es una infección que se desarrolla de manera rápida, afecta la piel, tejido celular subcutáneo, fascia superficial y en ocasiones la profunda, en heridas quirúrgicas al producir necrosis hística y severa toxicidad sistémica. Es una afectación sistémica acompañante, que a su vez a ella se asocian factores predisponentes endógenos como: diabetes mellitus, obesidad, alcoholismo, infección por VIH, y exógenos: cirugía ginecobstétrica, inyecciones, traumatismos; por lo que estos pacientes resultan ser enfermos críticos en las unidades de cuidados intensivos, con un curso clínico no uniforme, al llevar a una evolución fulminante cuando corresponde con la variante hiperaguda o fulminante. Objetivo: Describir la presencia de fascitis necrotizante hiperaguda causada por Enterococcus gallinarum, en una puérpera. Reporte de caso: Puérpera que se le practicó parto distócico por cesárea electiva a las 38.3 semanas, a las 24 h presentó manifestaciones generales que se acompañaron de lesiones en la piel; se le realizó cirugía ginecobstétrica, su evolución fue tórpida y falleció por fallo multiorgánico a los 3 días debido a las consecuencias de fascitis necrotizante hiperaguda o fulminante, causada esta por un Enterococcus gallinarum. Conclusiones: La fascitis necrotizante es una enfermedad poco frecuente y mortal si no se trata a tiempo; su diagnóstico resulta difícil en su fase inicial, debido a que casi siempre es clínico. El tratamiento quirúrgico debe ser urgente, combinarse este con antibióticoterapia sistémica, debido al germen causal y la toxicidad que producen.

ABSTRACT Background: Necrotizing fasciitis is an infection that develops rapidly, affecting the skin, subcutaneous cellular tissue, superficial fascia and sometimes deep fascia, in surgical wounds by producing hystenotic necrosis and severe systemic toxicity. It is a supplementary systemic affectation, which in turn is associated with endogenous predisposing factors such as: diabetes mellitus, obesity, alcoholism, HIV infection, and exogenous: gynecobstetric surgery, injections, traumatisms; so these patients are critical patients in intensive care units, with a non-uniform clinical progression, leading to a fulminant evolution when parallel to the hyperacute or fulminant variant. Objective: To describe the presence of hyperacute necrotizing fasciitis caused by Enterococcus gallinarum in a puerperal. Case report: A puerperal who suffered from dystocia delivery by elective cesarean section at 38.3 weeks, at 24 h presented general manifestations accompanied by skin lesions; she underwent gynecobstetric surgery, her evolution was torpid and she died of multiorgan failure after 3 days due to the consequences of hyperacute or fulminant necrotizing fasciitis, caused by Enterococcus gallinarum. Conclusions: Necrotizing fasciitis is a rare and fatal disease if not treated in time; its diagnosis is difficult in its early phase because it is often clinical. Surgical treatment should be urgent and combined with systemic antibiotic therapy due to the causative germ and the toxicity they produce.

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Helicobacter pylori is a Gram-negative bacterium found on the luminal surface of the gastric mucosa in at least 50% of the world's human population. The protective effect of breastfeeding against H. pylori infection has been extensively reported; however, the mechanisms behind this protection remain poorly understood. Human IgA from colostrum has reactivity against H. pylori antigens. Despite that IgA1 and IgA2 display structural and functional differences, their reactivity against H. pylori had not been previously determined. We attested titers and reactivity of human colostrum-IgA subclasses by ELISA, immunoblot, and flow cytometry. Colostrum samples from healthy mothers had higher titers of IgA; and IgA1 mostly recognized H. pylori antigens. Moreover, we found a correlation between IgA1 reactivity and their neutralizing effect determined by inhibition of cytoskeletal changes in AGS cells infected with H. pylori. In conclusion, colostrum-IgA reduces H. pylori infection of epithelial gastric cells, suggesting an important role in preventing the bacteria establishment during the first months of life. As a whole, these results suggest that IgA1 from human colostrum provides protection that may help in the development of the mucosal immune system of newborn children.

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RESUMEN Introducción: Los síndromes de QT largo adquiridos pueden ser provocados por el uso de fármacos, dentro de los cuales se encuentra la oxitocina. Objetivo: Identificar los cambios electrocardiográficos con el uso de la oxitocina intravenosa en la embarazada. Método: Se realizó un estudio descriptivo-prospectivo con 57 embarazadas a las que se les realizó cesárea electiva y se le administró oxitocina, inmediatamente después de la extracción fetal, en el Hospital Universitario Gineco-Obstétrico Mariana Grajales de Villa Clara, Cuba, durante el período de septiembre de 2019 a enero de 2020. Resultados: El 63,2% de las pacientes tuvo un QT corregido 470 ms; en estas últimas, un 5,3% lo tuvo entre 481-500 ms, e igual porcentaje > 500 ms. Ninguna paciente presentó síntomas sugestivos o demostración electrocardiográfica de taquicardia ventricular u otras arritmias complejas. Conclusiones: La oxitocina, administrada en el período de alumbramiento, produjo prolongación del intervalo QT por encima de los valores normales en algunas pacientes, sin que se produjeran síntomas cardiovasculares, dispersión del QT o arritmias complejas.

ABSTRACT Introducción: Acquired long QT syndromes may be due to the use of drugs, within which oxytocin is included. Objetivo: To identify electrocardiographic disturbances related to intravenous oxytocin administration in pregnant women. Método: A descriptive-prospective study was conducted with 57 pregnant women who underwent elective caesarean section and were given oxytocin, immediately after fetal extraction, at the Hospital Universitario Gineco-Obstétrico Mariana Grajales in Villa Clara, Cuba, between September 2019 and January 2020. Resultados: The 63.2% of the patients had a corrected QT interval 470 ms; in the latter, 5.3% had it between 481-500 ms, and equal percentage > 500 ms. No patient presented suggestive symptoms or electrocardiographic demonstration of ventricular tachycardia or other complex arrhythmias Conclusiones: Oxytocin, given during the placental removal period, resulted in the prolongation of the QT interval above normal values in some patients, without the appearance of cardiovascular symptoms, QT interval dispersion or complex arrhythmias.

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OBJECTIVE: This study aimed to determine if maternal intrapartum administration of oxygen altered the rate of cesarean delivery compared with room air. DATA SOURCES: This study was a systematic review and meta-analysis of randomized controlled trials. Searches were performed in MEDLINE, OVID, Scopus, ClinicalTrials.gov, and the Cochrane Central Register of Controlled Trials using a combination of key words related to "pregnant patients," "labor," "oxygen," "fetus," "newborn," and pregnancy outcomes from database inception until April 2020. The study was registered in PROSPERO (registration number CRD42020162110). STUDY ELIGIBILITY CRITERIA: The inclusion criteria were randomized controlled trials of maternal administration of oxygen compared with room air in labor. The exclusion criteria were quasi-randomized trials and oxygen administered for planned cesarean deliveries. The primary outcome was the rate of cesarean delivery. Secondary maternal and neonatal outcomes, including cord gas values, were analyzed. METHODS: The Cochrane Handbook guidelines were used to assess bias in trials. To calculate the relative risk or mean differences with confidence intervals, a random-effects model was employed. Subgroup analyses were performed for women who received oxygen for nonreassuring fetal heart rate monitoring or prophylactically. RESULTS: Five randomized controlled trials, including 768 women, were included in the meta-analysis, 3 using prophylactic oxygen and 2 using oxygen for nonreassuring fetal heart rate monitoring. The risk of bias was generally considered low. There was no statistically significant difference in the rate of cesarean delivery between patients administered oxygen and patients provided room air (16 of 365 [4.4%] vs 11 of 379 [2.9%]; risk ratio 1.5; 95% confidence interval, 0.7-3.3). In addition, there were no statistically significant differencs in the rates of cesarean delivery for nonreassuring fetal heart rate monitoring, operative vaginal deliveries, Apgar scores of <7, neonatal intensive care unit admissions, or cord blood gas values. There were no statistically significant difference when analyzing oxygen for nonreassuring fetal heart rate monitoring alone or prophylactic oxygen alone. Data regarding FHT is mixed, with one study suggesting an improvement and three suggesting no change. CONCLUSION: Maternal intrapartum oxygen administration was not associated with any differences in the rate of cesarean delivery or any secondary outcomes compared with room air overall and in the subgroups of therapeutic (for nonreassuring fetal heart rate monitoring) or prophylactic administration in this meta-analysis. Large randomized controlled trials are necessary to further examine any possible benefits or harms of oxygen administration in labor, particularly for nonreassuring fetal heart rate monitoring.

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INTRODUCTION: Though interest is growing for trials comparing planned delivery mode (vaginal delivery [VD]; cesarean section [CS]) in low-risk nulliparous women, appropriate study design is unclear. Our objective was to assess feasibility of three designs (preference trial [PCT], randomized controlled trial [RCT], partially randomized patient preference trial [PRPPT]) for a trial comparing planned delivery mode in low-risk women. METHODS: A cross-sectional survey of low-risk, nulliparous pregnant women (N = 416) and healthcare providers (N = 168) providing prenatal care and/or labor/delivery services was conducted in Argentina (2 public, 2 private hospitals). Proportion of pregnant women and providers willing to participate in each design and reasons for not participating were determined. RESULTS: Few women (< 15%) or professionals (33.3%) would participate in an RCT, though more would participate in PCTs (88% women; 65.9% professionals) or PRPPTs (44.4% public, 63.4% private sector women; 44.0% professionals). However, most women would choose vaginal delivery in the PCT and PRPPT (> 85%). Believing randomization unacceptable (RCT, PRPPT) and desiring choice of delivery mode (RCT) were women's reasons for not participating. For providers, commonly cited reasons for not participating included unacceptability of performing CS without medical indication, difficulty obtaining informed consent, discomfort enrolling patients (all designs), and violating women's right to choose (RCT). CONCLUSIONS FOR PRACTICE: Important limitations were found for each trial design evaluated. The necessity of stronger evidence regarding delivery mode in low-risk women suggests consideration of additional designs, such as a rigorously designed cohort study or an RCT within an obstetric population with equivocal CS indications.

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OBJECTIVES: Maternal mortality related to placenta accreta spectrum (PAS) disorders remains substantial when diagnosed unexpectedly at delivery. The aim of this study was to evaluate the effectiveness of a routine contingent ultrasound screening program for PAS. METHODS: This was a retrospective study of data obtained between 2009 and 2019, involving two groups: a screening cohort of unselected women attending for routine mid-trimester ultrasound assessment and a diagnostic cohort consisting of women referred to the PAS diagnostic service with a suspected diagnosis of PAS. In the screening cohort, women with a low-lying placenta at the mid-trimester assessment were followed up in the third trimester, and those with a persistent low-lying placenta (i.e. placenta previa) and previous uterine surgery were referred to the PAS diagnostic service. Ultrasound assessment by the PAS diagnostic service consisted of two-dimensional grayscale and color Doppler ultrasonography, and women with a diagnosis of PAS were usually managed with conservative myometrial resection. The final diagnosis of PAS was based on a combination of intraoperative clinical findings and histopathological examination of the surgical specimen. RESULTS: In total, 57 179 women underwent routine mid-trimester fetal anatomy assessment, of whom 220 (0.4%) had a third-trimester diagnosis of placenta previa. Seventy-five of these women were referred to the PAS diagnostic service because of a history of uterine surgery, and 21 of 22 cases of PAS were diagnosed correctly (sensitivity, 95.45% (95% CI, 77.16-99.88%) and specificity, 100% (95% CI, 99.07-100%)). Univariate analysis demonstrated that parity ≥ 2 (odds ratio (OR), 35.50 (95% CI, 6.90-649.00)), two or more previous Cesarean sections (OR, 94.20 (95% CI, 22.00-656.00)) and placenta previa (OR, 20.50 (95% CI, 4.22-369.00)) were the strongest risk factors for PAS. In the diagnostic cohort, there were 173 referrals, with one false-positive and three false-negative diagnoses, resulting in a sensitivity of 96.63% (95% CI, 90.46-99.30%) and a specificity of 98.81% (95% CI, 93.54-99.97%). CONCLUSIONS: A contingent screening strategy for PAS is both feasible and effective in a routine healthcare setting. When linked to a PAS diagnostic and surgical management service, adoption of such a screening strategy has the potential to reduce the maternal morbidity and mortality associated with this condition. However, larger prospective studies are necessary before implementing this screening strategy into routine clinical practice. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

Eficacia de la detección contingente para los trastornos del espectro de la placenta acreta a partir de la placenta baja persistente y en la cirugía uterina previa OBJETIVOS: La mortalidad materna relacionada con los trastornos de la gama espectral de la placenta acreta (EPA) sigue siendo considerable cuando se diagnostica de forma inesperada en el momento del parto. El objetivo de este estudio fue evaluar la efectividad de un programa rutinario de detección contingente mediante ecografía para el EPA. MÉTODOS: Este fue un estudio retrospectivo de datos obtenidos entre 2009 y 2019, en el que participaron dos grupos: una cohorte de detección de mujeres no seleccionadas que acudieron a la evaluación ecográfica rutinaria de mitad de trimestre y una cohorte de diagnóstico, integrada por mujeres remitidas al servicio de diagnóstico del EPA con un presunto diagnóstico del EPA. En la cohorte de detección, a las mujeres con una placenta baja en la evaluación de mitad de trimestre se les hizo un seguimiento en el tercer trimestre, y a aquellas con una placenta baja persistente (es decir, placenta previa) que habían tenido cirugía uterina previa se las remitió al servicio de diagnóstico del EPA. La evaluación ecográfica por el servicio de diagnóstico del EPA consistió en una ecografía Doppler bidimensional en escala de grises y en color, y a las mujeres con diagnóstico del EPA se las trató habitualmente con una resección conservadora del miometrio. El diagnóstico final del EPA se basó en una combinación de indicadores clínicos intraoperatorios y el examen histopatológico de la muestra quirúrgica. RESULTADOS: En total, 57179 mujeres se sometieron a una evaluación rutinaria de la anatomía fetal a mitad del trimestre, de las cuales a 220 (0,4%) se les diagnosticó con placenta previa en el tercer trimestre. Setenta y cinco de estas mujeres fueron remitidas al servicio de diagnóstico del EPA, debido a su historial de cirugía uterina, y 21 de los 22 casos de EPA fueron diagnosticados correctamente (sensibilidad, 95,45% (IC 95%, 77,16-99,88%) y especificidad, 100% (IC 95%, 99,07-100%)). El análisis univariante demostró que la paridad ≥2 (razón de momios (RM), 35,50 (IC 95%, 6,90-649,00)), dos o más cesáreas previas (RM, 94,20 (IC 95%, 22,00-656,00)) y la placenta previa (RM, 20,50 (IC 95%, 4,22-369,00)) fueron los factores de riesgo más fuertes para el EPA. En la cohorte de diagnóstico, se remitió a 173 mujeres, entre las cuáles hubo un diagnóstico de falso-positivo y tres diagnósticos de falsos-negativos, lo que dio como resultado una sensibilidad del 96,63% (IC 95%, 90,46-99,30%) y una especificidad del 98,81% (IC 95%, 93,54-99,97%). CONCLUSIONES: La adopción de una estrategia de detección contingente para el EPA es tanto factible como eficaz en un entorno de atención sanitaria rutinaria. Cuando se asocia a un servicio de diagnóstico y gestión quirúrgica del EPA, la adopción de esa estrategia de detección podría reducir la morbilidad y la mortalidad maternas asociadas a esta afección. Sin embargo, se necesitan estudios prospectivos más amplios antes de aplicar esta estrategia de detección en la práctica clínica habitual. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.

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OBJECTIVE: To evaluate the uptake of perinatal HIV preventive interventions by the risk of perinatal HIV transmission in mother-infant pairs in a high-HIV prevalence area in the US. STUDY DESIGN: This was a retrospective cohort study of mother-infant pairs with perinatal HIV exposure during 2013-2017 managed at a subspecialty pediatric HIV program in Washington, DC. We collected demographic data, maternal HIV history, delivery mode, maternal and infant antiretroviral drug (ARV) use, and infant HIV test results. We compared the uptake of recommended preventive interventions in low-risk (ie, mothers on antiretroviral therapy [ART] with viral suppression) and high-risk (mothers without ART or viral suppression) mother-infant pairs using the Pearson chi-square, Fisher exact, and Wilcoxon rank-sum tests and logistic regression. RESULTS: We analyzed 551 HIV-exposed infants (HEIs) and 542 mothers living with HIV. The majority of mothers received ARVs (95.5%), had HIV RNA ≤1000 copies/mL before delivery (81.9%), and received intrapartum zidovudine (ZDV; 65.5%). The majority of all HEIs were low risk (82.6%) and received postpartum ARVs (98.9%). Among the low-risk infants, 53.2% were delivered via cesarean delivery (CD), and 62.9% and 96.5% were administered intrapartum and postpartum ZDV, respectively. Among high-risk infants, 84.4% were delivered via CD, 78.1% received intrapartum ZDV, and 62.5% received combination ART. Nine high-risk infants acquired HIV perinatally. CONCLUSION: In an area of high HIV prevalence in the US, a large proportion of low-risk HEIs received intrapartum ZDV and were delivered via CD. We also observed missed opportunities for the prevention of perinatal HIV transmission.

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