Comparison of two labor induction regimens with intravaginal misoprostol 25 µg and adverse perinatal outcomes.

OBJECTIVE: The aim of the study was to compare two labor induction regimens (4 and 6 h), to determine predictors of successful labor induction with intravaginal misoprostol 25 µg tablets, and to evaluate the association with adverse perinatal outcomes. METHODS: This was a retrospective cohort study that included singleton pregnancies undergoing induction of labor with an intravaginal misoprostol 25 µg tablet between 37 and 42 weeks of gestation. The pregnant women were divided into two groups: Group 1-intravaginal misoprostol 25 µg every 4 h and Group 2-intravaginal misoprostol 25 µg every 6 h. RESULTS: Pregnant women were divided into Group 1 (n=289) and Group 2 (n=278). Group 1 had a higher median number of intravaginal misoprostol 25 µg tablets (3.0 vs. 2.0 tablets, p<0.001), a lower prevalence of postpartum hemorrhage (7.6 vs. 32.7%, p<0.001), and a higher need for oxytocin (odds ratio [OR]: 2.1, 95%CI: 1.47-2.98, p<0.001) than Group 2. Models including intravaginal misoprostol 25 µg tablets every 4 and 6 h [x2(1)=23.7, OR: 4.35, p<0.0001], parity [x2(3)=39.4, OR: 0.59, p=0.031], and Bishop's score [x2(4)=10.8, OR: 0.77, p=0.019] were the best predictors of failure of labor induction. A statistically significant difference between groups was observed between the use of the first intravaginal misoprostol 25 µg tablet at the beginning (Breslow p<0.001) and the end of the active labor phase (Long Hank p=0.002). CONCLUSION: Pregnant women who used intravaginal misoprostol 25 µg every 4 h had a longer time from the labor induction to the beginning of the active phase of labor and higher rates of adverse perinatal outcomes than women who used intravaginal misoprostol 25 µg every 6 h.

Evaluation of the efficacy of labor induction with vaginal misoprostol in a low-risk pregnant women population.

OBJECTIVE: The aim of this study was to evaluate the success rate and predictors of labor induction using vaginal misoprostol in a low-risk pregnant women population. METHODS: A prospective cohort study was carried out with 196 pregnant women. Groups 2 and 4 of the Robson Classification admitted for induction of labor with vaginal misoprostol (25 µg tablets every 6 h, up to 4 tablets, for a maximum of 24 h). The success of labor induction was considered the achievement of vaginal delivery. Binary logistic regression was used to determine the best predictors of successful induction of labor with vaginal misoprostol. RESULTS: Of all the pregnant women analyzed, 140 (71.4%) were successful and 56 (28.6%) were unsuccessful. Pregnant women who achieved successful induction had a higher number of pregnancies (1.69 vs. 1.36, p=0.023), a higher number of deliveries (0.57 vs. 0.19, p<0.001), a higher Bishop score (2.0 vs. 1.38, p=0.002), and lower misoprostol 25 µg tablets (2.18 vs. 2.57, p=0.031). No previous deliveries [x2(1)=3.14, odds ratio (OR): 0.24, 95% confidence interval (CI): 0.10-0.57, R2 Nagelkerke: 0.91, p=0.001] and the presence of one previous delivery [x2(1)=6.0, OR: 3.40, 95% CI: 1.13-10.16, R2 Nagelkerke: 0.043, p=0.029] were significant predictors of successful induction of labor with vaginal misoprostol. CONCLUSION: A high rate of labor induction success using vaginal misoprostol in a low-risk population was observed, mainly in multiparous and with gestational age>41 weeks. No previous delivery decreased the success of labor induction, while one previous delivery increased the success of labor induction.

Insucesso de indução por misoprostol em gestantes: revisão integrativa / Fracaso de la inducción por misoprostol en mujeres embarazadas: revisión integradora / Unsuccessful misoprostol induction in pregnant women: an integrative review

Resumo Objetivo Analisar as evidências disponíveis na literatura acerca do insucesso da indução do trabalho de parto com misoprostol em gestações a termo. Métodos Revisão integrativa, realizada entre janeiro e novembro de 2022, cuja pergunta de pesquisa e descritores foram delineados por meio da estratégia PECO. As buscas foram realizadas nas bases de dados MEDLINE; Web of Science; CINAHL; EMBASE e Scopus por duas pesquisadoras de forma independente, assim como a avaliação. Para a fase de seleção e identificação dos estudos foi utilizado o Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A avaliação do risco de viés dos artigos incluídos foi realizada através do questionário Newcastle Ottawa Scale. Resultados Foram identificados 3.674 artigos, 84 foram lidos na íntegra, dos quais 11 compuseram a revisão (n=9.010 gestantes), com publicação entre os anos de 2005 a 2021, sendo a maioria nos Estados Unidos. Quanto ao nível de evidência, todos os artigos foram classificados como 2b, avaliada coforme o delineamento de cada investigação. O estudo apontou evidências quanto aos seguintes fatores: IMC elevado (maior igual a 30kg/m2), nuliparidade, bishop imaturo, comprimento cervical (maior igual a 30mm), estatura, etnia (não caucasianas do sul da Europa) e peso fetal (maior igual a 4kg). Conclusão Alcançou-se o objetivo do estudo tendo sido demonstrado seis fatores maternos e um fetal que podem levar ao insucesso da indução. Vale ressaltar a necessidade de evidências que incorporem a individualidade de cada característica e destaca-se a contribuição desse estudo para embasar a escolha da melhor conduta para cada gestação de forma individualizada.

Resumen Objetivo Analizar las evidencias disponibles en la literatura acerca del fracaso de la inducción del trabajo de parto con misoprostol en gestaciones a término. Métodos Revisión integradora, realizada entre enero y noviembre de 2022, cuya pregunta de investigación y descriptores fueron definidos mediante la estrategia PECO. Las búsquedas fueron realizadas en las bases de datos MEDLINE, Web of Science, CINAHL, EMBASE y Scopus por dos investigadoras de forma independiente, al igual que la evaluación. Para la fase de selección e identificación de los estudios se utilizó el Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). La evaluación del riesgo de sesgo de los artículos incluidos se realizó a través del cuestionario Newcastle Ottawa Scale. Resultados Se identificaron 3.674 artículos, 84 se leyeron en su totalidad, de los cuales 11 conformaron la revisión (n=9.010 mujeres embarazadas), publicados entre los años 2005 y 2021, la mayoría en Estados Unidos. Respecto al nivel de evidencia, todos los artículos fueron clasificados como 2b, evaluada de acuerdo con el diseño de cada investigación. El estudio indicó evidencias respecto a los siguientes factores: IMC elevado (mayor igual a 30 kg/m2), nuliparidad, bishop bajo, longitud cervical (mayor o igual a 30 mm), estatura, etnia (no caucasoide del sur de Europa) y peso fetal (mayor igual a 4 kg). Conclusión Se alcanzó el objetivo del estudio y se demostraron seis factores maternos y uno fetal que pueden llevar al fracaso de la inducción. Cabe resaltar la necesidad de evidencias que incorporen la individualidad de cada característica y se destaca la contribución de este estudio para fundamentar la elección de la mejor conducta en cada gestación de forma individualizada.

Abstract Objective To analyze the evidence available in literature regarding unsuccessful labor induction with misoprostol in full-term pregnancies. Methods This is an integrative review, carried out between January and November 2022, whose research question and descriptors were outlined using the PECO strategy. The searches were carried out in the MEDLINE, Web of Science, CINAHL, EMBASE and Scopus databases by two researchers independently as well as assessment. For the study selection and identification phase, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was used. The risk of bias assessment of included articles was carried out using the Newcastle-Ottawa Scale. Results A total of 3,674 articles were identified, and 84 were read in full, of which 11 comprised the review (n=9,010 pregnant women), published between 2005 and 2021, with the majority in the United States. Regarding the level of evidence, all articles were classified as 2b, assessed according to the design of each study. The study showed evidence regarding the following factors: High BMI (greater than 30 kg/m2), nulliparity, immature bishop, cervical length (greater than 30 mm), height, ethnicity (non-Caucasians from southern Europe) and fetal weight (greater equal to 4 kg). Conclusion The objective study was achieved, having demonstrated six maternal factors and one fetal factor that can lead to unsuccessful induction. It is worth highlighting the need for evidence that incorporates the individuality of each characteristic and the contribution of this study to support the choice of the best conduct for each pregnancy on an individual basis stands out.

Intended delivery mode and neonatal outcomes in pregnancies with fetal growth restriction.

Objective: To compare neonatal outcomes in pregnancies with fetal growth restriction (FGR) by intended delivery mode.Methods: This is a retrospective cohort study of singleton pregnancies with FGR that were delivered ≥34.0 weeks gestation. Neonatal outcomes were compared according to the intended delivery mode, which the attending obstetrician determined. Of note, none of the subjects had a contraindication to labor. Crude and adjusted odds ratios (ORs) and corresponding confidence intervals (CIs) were calculated via logistic regression models to assess the potential association between intended delivery mode and neonatal morbidity defined as a composite outcome (i.e. umbilical artery pH ≤7.1, 5-min Apgar score ≤7, admission to the neonatal intensive care unit, hypoglycemia, intrapartum fetal distress requiring expedited delivery, and perinatal death). A sensitivity analysis excluded intrapartum fetal distress requiring emergency cesarean delivery from the composite outcome since only patients with spontaneous labor or labor induction could meet this criterion. Potential confounders in the adjusted effects models included maternal age, body mass index, hypertensive disorders, diabetes, FGR type (i.e. early or late), and oligohydramnios.Results: Seventy-two (34%) patients had an elective cesarean delivery, 73 (34%) had spontaneous labor and were expected to deliver vaginally, and 67 (32%) underwent labor induction. The composite outcome was observed in 65.3%, 89%, and 88.1% of the groups mentioned above, respectively (p < 0.001). Among patients with spontaneous labor and those scheduled for labor induction, 63% and 47.8% required an emergency cesarean delivery for intrapartum fetal distress. Compared to elective cesarean delivery, spontaneous labor (OR 4.32 [95% CI 1.79, 10.42], p = 0.001; aOR 4.85 [95% CI 1.85, 12.66], p = 0.001), and labor induction (OR 3.92 [95% CI 1.62, 9.49] p = 0.002; aOR 5.29 [95% CI 2.01, 13.87], p = 0.001) had higher odds of adverse neonatal outcomes.Conclusion: In this cohort of FGR, delivering at ≥34 weeks of gestation, pregnancies with spontaneous labor, and those that underwent labor induction had higher odds of neonatal morbidity than elective cesarean delivery.

FIGO good practice recommendations for induced or spontaneous labor at term: Prep-for-Labor triage to minimize risks and maximize favorable outcomes.

The goal of induced or spontaneous labor is childbirth by vaginal delivery. Delivery after 37 weeks is desirable and associated with favorable maternal and newborn outcomes. Delivery facilities should have suitable staff and resources on site for antenatal services and delivery care. FIGO's Prep-for-Labor triage method provides rapid diagnostic tools that help define patients as high or low risk to determine whether transfer to a higher-level center is needed. There is often a disconnect between a facility's designation and its ability to achieve safe deliveries. For preplanned labor induction, the designated clinical facility must have the right set-up and prenatal records available to achieve a successful outcome. However, this is often not the case if a patient arrives in labor or needs an induction and the facility has limited patient information and resources, thus requiring rapid management decisions. The practical guidance checklist in this article defines maternal and/or fetal risk factors and delineates approaches and safe practices for labor induction and management, including when antenatal information is limited to maximize safe delivery practices. Guidelines on using the Bishop score (>6 or <6) to manage labor are presented. Evidence supporting successful safe labor induction at 41-42 weeks of gestation in low-risk cases is described. This practice will increase the rate of spontaneous labor and delivery, minimizing intervention and thereby diverting limited clinical resources to those patients in need. In the right setting, this could lead to around 80% of women delivering spontaneously, which remains a desired goal.

Foley catheter plus misoprostol versus misoprostol alone for labor induction.

OBJECTIVE: This study aimed to analyze the effects of Foley catheter combined with misoprostol in the labor induction process. METHODS: This is a nonblinded, block randomized, controlled trial that compared the association between transcervical Foley catheter/vaginal misoprostol 25 µg combination and vaginal misoprostol 25 µg alone in normal-risk and healthy pregnant women undergoing labor induction in the south of Brazil. RESULTS: A total of 230 patients with indications for labor induction were evaluated and classified into the "combined" group (Foley catheter plus misoprostol), consisting of 107 patients, and the "misoprostol" group (misoprostol only), consisting of 123 patients. The "combined" group was observed to have a shorter labor induction time (p=0.008). In addition, there was a lower need for misoprostol use for overall cervical ripening (p<0.001) and a lower relative risk of needing a second, third, or fourth misoprostol tablet in the "combined" group (risk ratio [RR] 0.80, 95% confidence interval [CI] 0.71-0.91; RR 0.41; 95%CI 0.31-0.56; and RR 0.29, 95%CI 0.17-0.52, respectively) (p<0.001). No statistically significant difference was found in induction failure rate, cesarean section rate, or perinatal outcomes. CONCLUSION: A combination of methods leads to shorter labor induction, lower need for misoprostol doses, and lower risk of cesarean section, with no increase in the rate of perinatal complications. REBEC number is RBR-7xcjz3z.

Determinants of successful labor induction in a teaching hospital in Nigeria: a 10-year review / Determinantes da indução do trabalho de parto bem sucedida em hospital-escola na Nigéria: uma revisão de 10 anos

Abstract Objectives: to evaluate the success rate of labor induction and determinants of successful outcome. Methods: retrospective cohort study of parturients that undergone labor induction between 2006 and 2015. Data was retrieved from the medical records and multivariate logistic regression was used to evaluate the determinants of successful labor induction. Results: the rate of labor induction was 10.9%. Out of the 940 women analysed, six hundred and fifty-six women (69.8%) had successful vaginal delivery. Labor induction at 39-40 weeks (OR=2.70; CI95%=1.17-6.36), 41 weeks (OR=2.44; CI95%=1.14-5.28), estimated fetal weight between 2.5 and 3.4kg (OR=4.27, CI95%=1.96-5.59) and estimated fetal weight of 3.5-3.9kg (OR=5.45; CI95%=2.81-10.60) increased the odds of achieving vaginal delivery. Conclusions: our findings suggest that 39, 40 and 41 weeks are optimal gestational ages for labor induction with respect to successful vaginal delivery. Also, estimated fetal weight between 2.5kg and 3.9kg favours successful vaginal delivery.

Resumo Objetivos: avaliar a taxa de sucesso da indução do trabalho de parto e determinantes de um resultado bem sucedido. Métodos: estudo de coorte retrospectivo de parturientes que submeteram a indução de trabalho de parto entre 2006 e 2015. Os dados foram recuperados dos registros médicos e a regressão logística multivariada foi utilizada para avaliar os determinantes da indução de trabalho de parto bem sucedida. Resultados: a taxa de indução de trabalho de parto foi de 10,9%. Das 940 mulheres analisadas, seiscentas e cinquenta e seis mulheres (69,8%) tiveram um parto vaginal bem sucedido. A indução de trabalho de parto nas 39-40 semanas (OR=2,70; IC95%=1,17-6,36), 41 semanas (OR=2,44; IC95%=1,14-5,28), peso fetal estimado entre 2,5 e 3,4kg OR=4,27; IC95%=1,96-5,59) e peso fetal estimado entre 3,5-3,9kg (OR=5,45; IC95%=2,81-10,60) aumentou as probabilidades de conseguir um parto vaginal. Conclusões: as nossas conclusões sugerem que as 39, 40 e 41 semanas são idades gestacionais ideais para a indução do trabalho de parto no que diz respeito ao sucesso do parto vaginal. Além disso, o peso fetal estimado entre 2,5kg e 3,9kg favorece o parto vaginal bem sucedido.

Percepção sobre o cuidado à perda gestacional: estudo qualitativo com casais brasileiros / Perceptions on pregnancy loss care: a qualitative study with brazilian couples / Percepción sobre la atención a la pérdida del embarazo: estudio cualitativo con parejas brasileñas

Este artigo analisou a percepção e os sentimentos de casais sobre o atendimento recebido nos serviços de saúde acessados em função de perda gestacional (óbito fetal ante e intraparto). O convite para a pesquisa foi divulgado em mídias sociais (Instagram e Facebook). Dos 66 casais que contataram a equipe, 12 participaram do estudo, cuja coleta de dados ocorreu em 2018. Os casais responderam conjuntamente a uma ficha de dados sociodemográficos e uma entrevista semiestruturada, realizada presencialmente (n=4) ou por videochamada (n=8). Os dados foram gravados em áudio e posteriormente transcritos. A Análise Temática indutiva das entrevistas identificou cinco temas: sentimento de impotência, iatrogenia vivida nos serviços, falta de cuidado em saúde mental, não reconhecimento da perda como evento com consequências emocionais negativas, e características do bom atendimento. Os achados demonstraram situações de violência, comunicação deficitária, desvalorização das perdas precoces, falta de suporte para contato com o bebê falecido e rotinas pouco humanizadas, especialmente durante a internação após a perda. Para aprimorar a assistência às famílias enlutadas, sugere-se qualificação profissional, ampliação da visibilidade do tema entre diferentes atores e reorganização dos serviços, considerando uma diretriz clínica para atenção ao luto perinatal, com destaque para o fortalecimento da inserção de equipes de saúde mental no contexto hospitalar.(AU)

This study analyzed couples' perceptions and feelings about pregnancy loss care (ante and intrapartum fetal death). A research invitation was published on social media (Instagram and Facebook) and data collection took place in 2018. Of the 66 couples who contacted the research team, 12 participated in the study by filling a sociodemographic questionnaire and answering a semi-structured interview in person (n=04) or by video call (n=08). All interviews were audio recorded, transcribed, and examined by Inductive Thematic Analysis, which identified five themes: feelings of impotence, iatrogenic experiences in health services, lack of mental health care, not recognizing pregnancy loss as an emotionally overwhelming event, and aspects of good healthcare. Analysis showed experiences of violence, poor communication, devaluation of early losses, lack of support for contact with the deceased baby, and dehumanizing routines, especially during hospitalization after loss. Professional qualification, extended pregnancy loss visibility among different stakeholders, and reorganization of health services are needed to improve the care offered to grieving families, considering a clinical guideline for perinatal grief care with emphasis on strengthening the insertion of mental health teams in the hospital context.(AU)

Este estudio analizó las percepciones y sentimientos de parejas sobre la atención recibida en los servicios de salud a los que accedieron debido a la pérdida del embarazo (muerte fetal ante e intraparto). La invitación al estudio se publicó en las redes sociales (Instagram y Facebook). De las 66 parejas que se contactaron con el equipo, 12 participaron en el estudio, cuya recolección de datos se realizó en 2018. Las parejas respondieron un formulario de datos sociodemográficos y realizaron una entrevista semiestructurada presencialmente (n=4) o por videollamada (n=08). Los datos se grabaron en audio para su posterior transcripción. El análisis temático inductivo identificó cinco temas: Sentimiento de impotencia, experiencias iatrogénicas en los servicios, falta de atención a la salud mental, falta de reconocimiento de la pérdida como un evento con consecuencias emocionales negativas y características de buena atención. Los hallazgos evidenciaron situaciones de violencia, comunicación deficiente, desvalorización de las pérdidas tempranas, falta de apoyo para el contacto con el bebé fallecido y rutinas poco humanizadas, especialmente durante la hospitalización tras la pérdida. Para mejorar la atención a las familias en duelo, se sugiere capacitación profesional, ampliación de la visibilidad del tema entre los diferentes actores y reorganización de los servicios, teniendo en cuenta una guía clínica para la atención del duelo perinatal, enfocada en fortalecer la inserción de los equipos de salud mental en el contexto hospitalario.(AU)

Caracterización de las mujeres mediante variables obstétricas, según Robson / Characterization of women through obstetric variables, according to Robson / Caracterização da mulher por meio de variáveis obstétricas, segundo Robson

En los últimos tiempos, la praxis de la cesárea en los centros hospitalarios se ha incrementado notablemente, el cual es ha sido corroborado según fuentes del INEI, por su parte, la OMS estandarizó que la variabilidad máxima es el 15%, superado aquello genera un grave problema al estado en cuestiones económicos, para constatar la problemática se tuvo en cuenta el objetivo de caracterizar a las mujeres de parto por cesárea a través de variables obstétricas desde la perspectiva de Robson, por lo que la investigación correspondió al enfoque cuantitativo, tipo no experimental y diseño descriptivo, la muestra representada por 1365 mujeres registradas en el base de datos correspondientes al 2019. El análisis de los resultados obedeció al método inductivo-deductivo, la misma que permitió diferenciar la tasa global de cesárea, el modelo de Robson mostró como resultado el 53%, cifra que supera en 38% a lo que establece la OMS, mientras que los grupos con mayor contribución a la tasa global de cesáreas fueron los grupos: 5, 1, 3 y 10. Finalmente, se concluye que la mayor cantidad de las mujeres han sido sometida al parto por cesárea, siendo mayor la tasa global durante el año indicado, en consecuencia generó mayor gasto al estado, exigiendo incrementar presupuesto al sector salud, cabe precisar que existe la posibilidad de controlar a través de la inducción a las mujeres embarazadas para el parto vaginal aplicación de los métodos y técnicas eficaces que permitan generar confianza a la mayor población de mujeres gestantes.

In recent times, the practice of cesarean section in hospital centers has increased notably, which has been corroborated according to INEI sources, on the other hand, the WHO standardized that the maximum variability is 15%, exceeding this generates a serious problem for the state in economic matters, In order to verify the problem, the objective of characterizing women who give birth by cesarean section through obstetric variables from Robson's perspective was taken into account, so the research corresponded to the quantitative approach, non-experimental type and descriptive design, the sample represented by 1365 women registered in the database corresponding to 2019. The analysis of the results obeyed the inductive-deductive method, the same that allowed differentiating the global rate of cesarean section, Robson's model showed as a result 53%, a figure that exceeds by 38% what the WHO establishes, while the groups with the highest contribution to the global rate of cesarean section were the groups: 5, 1, 3 and 10. Finally, it is concluded that most women have been subjected to cesarean delivery, being higher the overall rate during the year indicated, consequently generated greater expenditure to the state, requiring increased budget to the health sector, it should be noted that there is the possibility of controlling through the induction of pregnant women for vaginal delivery application of effective methods and techniques to generate confidence to the largest population of pregnant women.

Nos últimos tempos, a prática da cesárea nos centros hospitalares tem aumentado notavelmente, o que tem sido corroborado de acordo com fontes do INEI, enquanto a OMS padronizou que a variabilidade máxima é de 15%, o que gera um grave problema para o Estado em questões econômicas, A fim de verificar o problema, foi levado em conta o objetivo de caracterizar as mulheres que dão à luz por cesárea através de variáveis obstétricas da perspectiva de Robson, de modo que a pesquisa correspondeu à abordagem quantitativa, tipo não experimental e desenho descritivo, a amostra representada por 1365 mulheres registradas no banco de dados correspondente a 2019. A análise dos resultados obedeceu ao método indutivo-dedutivo, que nos permitiu diferenciar a taxa geral de cesárea, o modelo de Robson mostrou um resultado de 53%, que é 38% maior do que o estabelecido pela OMS, enquanto os grupos com maior contribuição para a taxa geral de cesárea foram os grupos 5, 1, 3 e 10. Finalmente, conclui-se que a maioria das mulheres passou por cesarianas, sendo a taxa geral mais alta durante o ano em questão, e como resultado, o Estado gastou mais dinheiro, exigindo um aumento no orçamento do setor de saúde. Deve-se notar que é possível controlar as mulheres grávidas através da indução ao parto vaginal, aplicando métodos e técnicas eficazes que gerarão confiança na população maior de mulheres grávidas.

Robson's Ten Group Classification System to Evaluate Cesarean Section Rates in Honduras: The Relevance of Labor Induction.

OBJECTIVE: To use the Robson Ten Group Classification (RTGC) to analyze cesarean section (CS) rates in a Honduran maternity hospital, with focus in groups that consider induction of labor. METHODS: Cross-sectional study. Women admitted for childbirth (August 2017 to October 2018) were classified according to the RTGC. The CS rate for each group and the contribution to the overall CS rate was calculated, with further analyses of the induction of labor among term primiparous (group 2a), term multiparous (group 4a), and cases with one previous CS (group 5.1). RESULTS: A total of 4,356 women were considered, with an overall CS rate of 26.1%. Group 3 was the largest group, with 38.6% (1,682/4,356) of the cases, followed by Group 1, with 30.8% (1,342/4,356), and Group 5, with 10.3% (450/4,356). Considering the contribution to overall CS rates per group, Group 5 contributed with 30.4% (345/1,136) of the CSs and within this group, 286/345 (82.9%) had 1 previous CS, with a CS rate > 70%. Groups 1 and 3, with 26.6% (291/1,136) and 13.5% (153/1,136), respectively, were the second and third larger contributors to the CS rate. Groups 2a and 4a had high induction success, with low CS rates (18.4 and 16.9%, respectively). CONCLUSION: The RTGC is a useful tool to assess CS rates in different healthcare facilities. Groups 5, 1, and 3 were the main contributors to the CS rate, and groups 2 and 4 showed the impact and importance of induction of labor. These findings may support future interventions to reduce unnecessary CS, especially among primiparous and in women with previous CS.

OBJETIVO: Utilizar a Classificação de Dez Grupos de Robson (RTGC, na sigla em inglês) para analisar as taxas de cesárea (CS, na sigla em inglês) em uma maternidade hondurenha. MéTODOS: Estudo de corte transversal em uma maternidade em Honduras. As mulheres internadas para o parto (agosto de 2017 a outubro de 2018) foram classificadas segundo a RTGC. Calculou-se a taxa de CS para cada grupo e a contribuição para a taxa geral de CS, com análises adicionais da indução do trabalho de parto entre as primíparas a termo (grupo 2a), multíparas a termo (grupo 4a) e casos com uma CS anterior (grupo 5.1). RESULTADOS: foram consideradas 4.356 mulheres, com uma taxa geral de CS de 26.1%. O Grupo 3 foi o maior grupo, com 38,.6% (1.682/4.356) dos casos; seguido pelo Grupo 1, com 30,8% (1.342/4.356), e pelo Grupo 5, com 10,3% (450/4,356). Considerando a contribuição para as taxas globais de CS por grupo, o Grupo 5 contribuiu com 30,4% (345/1,136) das CS, dos quais 286 (82.9%) tinha uma CS anterior, com um índice de CS > 70%. Os grupos 1 e 3, com 291/1.136 (26.6%) e 153/1.136 (13,5%), respectivamente, foram o segundo e terceiro maiores contribuintes para a taxa de CS. Os grupos 2a e 4a tiveram alto sucesso de indução, com baixas taxas de CS (18.4 e 16.9%, respectivamente). CONCLUSãO: O RTGC é uma ferramenta útil para avaliar as taxas de CS em diferentes unidades de saúde. Os grupos 5, 1 e 3 foram os principais contribuintes para a taxa de CS. Estes achados podem apoiar intervenções futuras para reduzir as CS desnecessárias, especialmente entre primíparas e em mulheres com uma CS anterior.

Analysis of Variables that Influence the Success Rates of Induction of Labor with Misoprostol: A Retrospective Observational Study.

OBJECTIVE: Determine the predictive criteria for success in inducing labor for live fetuses using misoprostol in pregnant women. Secondarily, the objective is to determine the rates of vaginal or cesarean delivery, duration of induction, interval of administration of misoprostol, the main causes of induction of labor and indication for operative delivery. METHODS: Medical records of 873 pregnant women admitted for cervical maturation from January 2017 to December 2018 were reviewed in a descriptive observational study of retrospective analysis, considering the following response variables: age, parity, Bishop Index, doses of misoprostol, labor induction time. Logistic regression models were used to predict success with misoprostol in non-operative deliveries. RESULTS: Of the 873 patients evaluated, 72% evolved with vaginal delivery, 23% of the cases were cesarean, 5% forceps or vacuum-extractor. For non-operative delivery the predictive variables at admission were age, parity, gestational age and dilation. During hospitalization, fewer vaginal touches, amniotomy or amniorrhexis with clear fluid lead to a shorter induction time and a greater chance of non-operative delivery. False positives and false negatives of the model were always below 50% and correct answers above 65%. CONCLUSION: At admission, age less than 24 years, previous normal births, lower the gestational age and greater the dilation, were predictive of greater probability of non-operative delivery. During hospitalization, the less vaginal touches and occurrence of amniotomy/amniorrhexis with clear liquid indicate shorter induction time. Future studies with a prospective design and analysis of other factors are necessary to assess the replicability, generalization of these findings.

OBJETIVO: Determinar os critérios preditivos para o sucesso na indução do trabalho de parto para fetos vivos utilizando misoprostol em gestantes. Em segundo lugar, o objetivo é determinar as taxas de parto vaginal ou cesáreo, duração da indução, intervalo de administração de misoprostol, as principais causas de indução do trabalho de parto e indicação para parto operatório. MéTODOS: Foram revisados os prontuários de 873 gestantes internadas para amadurecimento cervical entre janeiro de 2017 e dezembro de 2018 em um estudo descritivo observacional de análise retrospectiva, considerando as variáveis-resposta: idade, paridade, Índice de Bishop, doses de misoprostol, tempo de indução do trabalho de parto. Modelos de regressão logística foram utilizados para prever o sucesso com misoprostol em partos não operatórios. RESULTADOS: Dos 873 pacientes avaliados, 72% evoluíram com parto vaginal, 23% dos casos foram cesáreos, 5% fórceps ou vácuo-extrator. Para o parto não operatório as variáveis preditivas na internação foram idade, paridade, idade gestacional e dilatação. Durante a internação, um menor número de toques vaginais, amniotomia ou amniorrexe com líquido claro, levam a menor tempo de indução e maior chance de parto não operatório. Falsos positivos e falsos negativos do modelo sempre foram inferiores a 50% e respostas corretas acima de 65%. CONCLUSãO: Na internação, idade menor que 24 anos, ocorrência de partos normais anteriores, menor idade gestacional e maior dilatação, foram preditivos de maior probabilidade de parto não-operatório. Durante a internação, o menor número de toques vaginais, amniotomia/amniorrexe com líquido claro indicam menor tempo de indução. Estudos futuros com design prospectivo e análise de outros fatores são necessários para avaliar a replicabilidade, generalização desses achados.

Analysis of Variables that Influence the Success Rates of Induction of Labor with Misoprostol: A Retrospective Observational Study / Análise de variáveis que influenciam na taxa de sucesso da indução do parto com misoprostol: Um estudo observacional retrospectivo

Abstract Objective Determine the predictive criteria for success in inducing labor for live fetuses using misoprostol in pregnant women. Secondarily, the objective is to determine the rates of vaginal or cesarean delivery, duration of induction, interval of administration of misoprostol, the main causes of induction of labor and indication for operative delivery. Methods Medical records of 873 pregnant women admitted for cervical maturation from January 2017 to December 2018 were reviewed in a descriptive observational study of retrospective analysis, considering the following response variables: age, parity, Bishop Index, doses of misoprostol, labor induction time. Logistic regression models were used to predict success with misoprostol in non-operative deliveries. Results Of the 873 patients evaluated, 72% evolved with vaginal delivery, 23% of the cases were cesarean, 5% forceps or vacuum-extractor. For non-operative delivery the predictive variables at admission were age, parity, gestational age and dilation. During hospitalization, fewer vaginal touches,amniotomy or amniorrhexis with clear fluid lead to a shorter induction time and a greater chance of non-operative delivery. False positives and false negatives of the model were always below 50% and correct answers above 65%. Conclusion At admission, age less than 24 years, previous normal births, lower the gestational age and greater the dilation, were predictive of greater probability of nonoperative delivery. During hospitalization, the less vaginal touches and occurrence of amniotomy/amniorrhexis with clear liquid indicate shorter induction time. Future studies with a prospective design and analysis of other factors are necessary to assess the replicability, generalization of these findings.

Resumo Objetivo Determinar os critérios preditivos para o sucesso na indução do trabalho de parto para fetos vivos utilizando misoprostol em gestantes. Em segundo lugar, o objetivo é determinar as taxas de parto vaginal ou cesáreo, duração da indução, intervalo de administração de misoprostol, as principais causas de indução do trabalho de parto e indicação para parto operatório. Métodos Foram revisados os prontuários de 873 gestantes internadas para amadurecimento cervical entre janeiro de 2017 e dezembro de 2018 em um estudo descritivo observacional de análise retrospectiva, considerando as variáveis-resposta: idade, paridade, Índice de Bishop, doses de misoprostol, tempo de indução do trabalho de parto. Modelos de regressão logística foram utilizados para prever o sucesso com misoprostol em partos não operatórios. Resultados Dos 873 pacientes avaliados, 72% evoluíram com parto vaginal, 23% dos casos foram cesáreos, 5% fórceps ou vácuo-extrator. Para o parto não operatório as variáveis preditivas na internação foram idade, paridade, idade gestacional e dilatação. Durante a internação, um menor número de toques vaginais, amniotomia ou amniorrexe com líquido claro, levam a menor tempo de indução e maior chance de parto não operatório. Falsos positivos e falsos negativos do modelo sempre foram inferiores a 50% e respostas corretas acima de 65%. Conclusão Na internação, idade menor que 24 anos, ocorrência de partos normais anteriores, menor idade gestacional e maior dilatação, foram preditivos de maior probabilidade de parto não-operatório. Durante a internação, o menor número de toques vaginais, amniotomia/amniorrexe com líquido claro indicam menor tempo de indução. Estudos futuros com design prospectivo e análise de outros fatores são necessários para avaliar a replicabilidade, generalização desses achados.

Nonpharmacological labor pain management methods and risk of cesarean birth: A retrospective cohort study.

BACKGROUND: Nonpharmacological labor pain management methods (NPLPMM) are noninvasive, low-cost practices that may play a role in reducing the rates of unnecessary cesarean birth. We aimed to evaluate whether the NPLPMM is associated with the mode of birth. METHODS: We conducted a retrospective cohort study with clinical records of all women admitted for birth from January 2013 to December 2017. Records of women who had spontaneous labor or received induction or augmentation of labor during hospitalization were eligible for the study. We estimated the risk ratios for cesarean birth in general linear models using the Poisson regression with adjustments for the following variables: age, ethnicity, schooling, parity, gestational age, previous cesarean birth, spontaneous labor before admission, or induction/augmentation of labor. RESULTS: Within the total of 3,391 medical records, 40.1% had the use of a nonpharmacological labor pain management method registered. Cesarean rate among the study population was 44.2%. The use of NPLPMM decreased the risk of cesarean birth by 78% (OR = 0.22; 95% CI 0.19-0.26). History of a previous cesarean birth (RR = 2.63; 95% CI 2.35-2.64), the lack of use of NPLPMM (RR = 2.46; 95% CI 2.22-2.72), and primiparity (RR = 2.09; 95% CI 1.86-2.34) were the strongest risk factors for cesarean birth in the cohort. DISCUSSION: The use of NPLPMM may be an effective strategy to reduce unnecessary cesarean birth. Further studies to identify the efficacy of each method may help health professionals to offer more appropriate methods at different stages of labor.

Sonographic cervical length predicts vaginal delivery after previous cesarean section in women with low Bishop score induced with a double-balloon catheter.

OBJECTIVE: To assess the role of cervical length when predicting vaginal delivery after a previous cesarean section (CS) in women with low Bishop score following the use of a double-balloon catheter for induction of labor (IOL). METHODS: A prospective, longitudinal study was conducted at a large teaching hospital in Santiago to recruit pregnant women at term with a previous CS and Bishop score ≤6 for IOL with a double-balloon catheter. The device was maintained for up to 24 h and the patient continued IOL with oxytocin only if the Bishop score was >6. Demographic and clinical variables were recorded and compared against vaginal delivery as the primary outcome. Multivariate logistic regression analysis was used to compare perinatal demographic and clinical variables in women achieving vaginal delivery versus those having a repeat CS. RESULTS: The final cohort included 40 pregnant women. Women achieving vaginal delivery (n = 17, 42.5%) had statistically significant differences in mean cervical length (24.8 mm versus 33.4 mm, respectively; p = .006), median Bishop score after removing the double-balloon catheter (11 versus 7, respectively; p = .005), and mean interval between double-balloon catheter placement and vaginal delivery or the decision to perform a CS (17.4 h versus 23.6 h, respectively; p = .03). Backward stepwise selection revealed an odds ratio of 0.90 (95% confidence interval = 0.82-0.98) for cervical length and a receiver operating characteristic curve area of 0.73. CONCLUSION: Cervical length, as determined by transvaginal sonography, proved to be effective in predicting vaginal delivery in women with a previous CS and low Bishop score following the use of a double-balloon catheter for IOL.

Disgerminoma ovariano na gestação: relato de caso / Ovarian dysgerminoma in pregnancy: a case report

Os disgerminomas são tumores malignos de células germinativas ovarianas, são raros, geralmente acometem mulheres em idade fértil e têm bom prognóstico e sobrevida elevada. Paciente de 20 anos, primigesta com 26 semanas de gestação, foi admitida no centro obstétrico da Fundação Hospitalar Santo Antônio em Blumenau- SC com quadro de dor abdominal intensa refratária à analgesia e desconforto respiratório. Ressonância magnética demonstrou derrame pleural, moderada ascite e volumosa lesão expansiva de aspecto sólido-cístico em anexo direito. Foram realizadas salpingo-oforectomia à direita e omentectomia parcial e coletado lavado peritoneal. Anatomopatológico evidenciou disgerminoma. A paciente seguiu acompanhamento gestacional nos serviços de pré-natal de alto risco e oncologia. Devido à imaturidade fetal, manteve-se conduta expectante e, após o parto normal com 37 semanas, foi realizado estadiamento e iniciada quimioterapia adjuvante. Devido à baixa incidência e à raridade de tumores de células malignas ovarianas, relatos de casos como este são importantes para discutir as melhores estratégias de manejo clínico.(AU)

Dysgerminomas are rare malignant ovarian germ cell tumors that generally affect adolescence and early adulthood, have a good prognosis and high survival. Patient 20 years old, gestation 1, at 26 weeks of gestation, was hospitalized at the obstetric center of Fundação Hospitalar Santo Antônio in Blumenau-SC, with severe abdominal pain refractory to analgesia and respiratory discomfort. Magnetic resonance showed pleural effusion, moderate ascites and a massive expansive lesion with a solid cystic aspect in the right ovary. Right salpingoophorectomy, partial omentectomy and peritoneal lavage were collected. Anatomopathological evidence showed dysgerminoma. Patient followed gestational follow-up at high-risk prenatal and oncology services. Due to fetal immaturity, expectant management was maintained and after vaginal delivery at 37 weeks, staging was performed and adjuvant chemotherapy was started. Due to the low incidence and rarity of ovarian malignant cell tumors, case reports such as this one are important to discuss the best clinical management strategies.(AU)

Determination of misoprostol acid in plasma samples by UPLC-MS/MS with application in a maternal-fetal pharmacokinetic study following a low misoprostol dose vaginally to induce labor.

Misoprostol is a prostaglandin E1 synthetic analogous used for elective interruptions of early pregnancy, treatment of incomplete abortion, postpartum hemorrhage and induction of full-term labor. Its a lipophilic drug, passing by extensive and rapid pre-systemic metabolism into the active metabolite, misoprostol acid (MA). The objective of this study was to develop and validate a highly sensitive method for MA determination in plasma using UPLC-MSMS, with application in a study of maternal-fetal pharmacokinetics in healthy parturients women (n = 10) after administration of 25 µg misoprostol vaginally. The method presented linearity of 2-10 pg/mL and acceptable precision, accuracy, plasma and solution stability. The parturients women presented median (interquartile range) values of AUC0-6 of 68.0 (40.8-84.7) pg.h/mL, Cmax of 21.9 (11.9-30.1) pg/mL and Tmax of 2.25 (0.69-5.00) h. The placental transfer of MA was assessed from the umbilical vein/maternal blood ratios of 1.40 (0.91-2.13) and intervillous space/maternal blood ratios of 0.49 (0.15-3.41). In conclusion, this method presented high sensitivity, being able to quantify MA in plasma samples following a low 25 µg misoprostol administered vaginally aimed to induce labor in parturients women. Additionally, this is the first description of the placental transfer of MA after a vaginal administration of misoprostol.