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1.
BJOG ; 131(9): 1279-1289, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38375535

RESUMO

OBJECTIVE: To investigate the effect of vacuum extraction (VE) or caesarean section (CS), compared with expectant management, on pelvic floor dysfunction (PFD) 1-2 years postpartum in primiparous women with a prolonged second stage of labour. DESIGN: A population-based questionnaire and cohort study. SETTING: Stockholm, Sweden. POPULATION: A cohort of 1302 primiparous women with a second stage duration of ≥3 h, delivering from December 2017 to November 2018. METHODS: The 1-year follow-up questionnaire from the Swedish National Perineal Laceration Register was distributed 12-24 months postpartum. Exposure was VE or CS at 3-4 h or 4-5 h, compared with expectant management. MAIN OUTCOME MEASURES: Pelvic floor dysfunction was defined as at least weekly symptoms of urinary incontinence, pelvic organ prolapse or a Wexner score of ≥4. The risk of PFD was calculated using Poisson regression with robust variance estimation, presented as crude and adjusted relative risks (RRs and aRRs) with 95% confidence intervals (95% CIs). The implication of obstetric anal sphincter injury (OASI) on pelvic floor disorders was investigated through mediation analysis. RESULTS: In total, 35.1% of women reported PFD. Compared with expectant management, the risk of PFD was increased after VE at 3-4 h (aRR 1.33, 95% CI 1.06-1.65) and 4-5 h (aRR 1.34, 95% CI 1.05-1.70), but remained unchanged after CS. The increased risk after VE was not mediated by OASI. CONCLUSIONS: Pelvic floor dysfunction was common in primiparous women after a prolonged second stage, and the risk of PFD increased after VE but was unaffected by CS, compared with expectant management. If a spontaneous vaginal delivery eventually occurred, allowing an extended duration of labour did not increase the risk of PFD.


Assuntos
Cesárea , Segunda Fase do Trabalho de Parto , Distúrbios do Assoalho Pélvico , Vácuo-Extração , Conduta Expectante , Humanos , Feminino , Gravidez , Adulto , Distúrbios do Assoalho Pélvico/etiologia , Distúrbios do Assoalho Pélvico/epidemiologia , Distúrbios do Assoalho Pélvico/terapia , Suécia/epidemiologia , Vácuo-Extração/efeitos adversos , Vácuo-Extração/estatística & dados numéricos , Inquéritos e Questionários , Cesárea/estatística & dados numéricos , Cesárea/efeitos adversos , Estudos de Coortes , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/etiologia , Prolapso de Órgão Pélvico/epidemiologia , Prolapso de Órgão Pélvico/terapia , Prolapso de Órgão Pélvico/etiologia , Incontinência Urinária/etiologia , Incontinência Urinária/epidemiologia
2.
Int J Nurs Stud ; 152: 104693, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38262232

RESUMO

INTRODUCTION: Different systematic reviews have been developed in the last decades about maternal risks of immediate pushing and delayed pushing, depending on the duration of the second stage of labour, but they do not provide conclusive evidence. AIM: The main aim of this overview of systematic reviews was to assess the maternal outcomes using delayed pushing and immediate pushing in the second stage of labour in women receiving epidural analgesia. METHODS: We searched systematically in PubMed (Medline), EMBASE, CINAHL, and Scopus (October 26th, 2023). Methodological quality was analysed using AMSTAR and ROBIS scales, and the strength of evidence was established according to the guidelines advisory committee grading criteria. The outcome measures were the duration of the second stage of labour, duration of active pushing, caesarean section, instrumental vaginal birth, spontaneous vaginal birth, fatigue score, perineal lacerations, postpartum haemorrhage, and rate of episiotomy. Seven systematic reviews with and without meta-analysis were included. RESULTS: Results showed that delayed pushing increases the total time of the second stage of labour, although delayed pushing decreases the duration of active pushing with moderate quality of evidence. Mixed results were found with respect to the variables instrumental vaginal birth, spontaneous vaginal birth, and fatigue score although the results favour delayed pushing or show no statistically significant differences with respect to immediate pushing. No favourable results were ever found for immediate pushing with respect to delayed pushing, with a limited quality of evidence. Even so, delayed pushing seems to be associated with a significant increase in spontaneous vaginal birth rates. The results found no significant differences between the immediate pushing and delayed pushing groups in the caesarean section rates, perineal lacerations, postpartum haemorrhage, and episiotomy ratio, with a limited quality of evidence. CONCLUSIONS: This study shows that delayed pushing during the second stage of labour produces at least the same maternal outcomes as immediate pushing, although we note that delayed pushing produces an increase of the duration of the second stage of labour, a shorter duration of the active pushing and a tendency to increase spontaneous vaginal birth and to reduce the instrumental vaginal birth rates and fatigue scores. This should be considered clinically. This review was registered in the International Prospective Register of Systematic Reviews PROSPERO (CRD42023397616).


Assuntos
Lacerações , Hemorragia Pós-Parto , Gravidez , Feminino , Humanos , Cesárea , Parto Obstétrico/métodos , Segunda Fase do Trabalho de Parto , Revisões Sistemáticas como Assunto
3.
J Adv Nurs ; 2023 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-37921103

RESUMO

OBJECTIVE: To explore the possible barriers and facilitators to implementing the Upright Positions in the Second Stage of Labour (UPSSL) programme in Chinese healthcare settings. DESIGN: A mixed-method convergent design with the guidance of Consolidated Framework for Implementation Research (CFIR). METHODS: An online survey study and semi-structured interviews were conducted between March and May 2023. Healthcare professionals were recruited from four hospitals in Shijiazhuang, China. One hundred and thirty-one participants completed the survey study, and 23 of them were interviewed individually. Descriptive statistics evaluated the possible barriers and facilitators of implementing the UPSSL programme within the CFIR framework quantitatively. Guided by the CFIR framework, qualitative data were analysed using directed content analysis to summarize healthcare professionals' perspectives on barriers and facilitators of the UPSSL programme. RESULTS: Multiple intersectional barriers and facilitators were identified from the survey and semi-interviews. Healthcare professionals believed that the UPSSL programme has a scientific evidence base, systematic contents, and possible benefits for women. However, various barriers existed at individual, system, and organizational levels. Major barriers included healthcare professionals and women's safety concerns towards the use of upright positions during childbirth, the healthcare professionals' unfamiliarity with assisting an upright position birth, poor adaptability of the programme protocol, inadequate facilities and staffing, and a lack of readiness to change in the clinical setting. CONCLUSIONS: To facilitate the implementation of the UPSSL programme in China, tailored antenatal education on upright positions, especially addressing safety-related issues, should be provided to pregnant women, their families, or peers to enhance their understanding of and familiarity with such positions. Healthcare professionals should also be offered adequate training opportunities and necessary facilities. Furthermore, national-level policy changes might be required to address midwifery workforce shortages. Additionally, further research is warranted to select, adapt, and test effective implementation strategies for programme adoption. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: What problem did the study address? The adoption of upright positions during the second stage of labour could promote better maternal and neonatal outcomes and a positive childbirth experience. However, the adoption of upright positions during the second stage of labour is suboptimal in healthcare settings in China. Barriers and facilitators of implementing upright positions during childbirth are unclear. What were the main findings? A range of barriers and facilitators within the CFIR framework to promote upright positions during childbirth from healthcare professionals' perspectives were identified, and the major barriers included safety concerns towards and unfamiliarity with an upright position birth, inadequate facilities and staffing, and a lack of readiness to change in the clinical setting. Where and on whom will the research have an impact? This study will enable a better understanding of the barriers and facilitators to promoting upright positions in the second stage of labour in China. The smooth and effective implementation of the UPSSL programme could help to promote better maternal and neonatal outcomes and improve women's childbirth experiences. REPORTING METHOD: The reporting of this study followed the Consolidated Criteria for Reporting Qualitative Research (COREQ) and Good Reporting of A Mixed Methods Study (GRAMMS) guidelines. PATIENT OR PUBLIC CONTRIBUTION: In this study, healthcare professionals were involved in refining the topic guides and survey questions. Additionally, findings from the interviews were returned to them for comments and corrections.

4.
Midwifery ; 125: 103801, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37657132

RESUMO

OBJECTIVE: Upright positions in the second stage of labour are recommended by many international organizations. However, they have not been widely used worldwide, especially in China. One of the important factors is the absence of a practice programme based on the best available evidence. We thus developed a Practice Programme for Upright Positions in the Second Stage of Labour following the UK Medical Research Council framework. Under the guidance of the programme, whether the use of upright positions can improve the maternal birth experience is a question of great concern. This study aimed to explore the birth experience of Chinese women who adopted upright positions in the second stage of labour. DESIGN: This qualitative descriptive study was conducted as part of an implementation study that developed an evidence-based intervention and used strategies to integrate the evidence-based intervention into routine obstetric clinical practice. SETTING: The maternity department of a tertiary comprehensive hospital in Hebei Province, China. PARTICIPANTS: Semi-structured interviews with twelve eligible women who adopted upright positions in the second stage of labour were conducted between March and April 2022. Qualitative data were analyzed by using conventional content analysis. FINDINGS: The average age of included women was 26.5 ± 3.5 years, and ten of them were primiparous women. Eight women adopted epidural analgesia during labour to relieve labour pain. All women gave birth in at least one type of upright position in the passive second stage of labour and adopted the semi-recumbent position in the active second stage of labour. Through conventional content analysis, we found that the use of upright positions in the second stage of labour could possibly promote an overall positive birth experience. Women giving birth in upright positions generally perceived they were more involved in their birthing process, and had greater physical and mental capacity to cope with childbirth. KEY CONCLUSIONS: Women have a positive birth experience when using upright positions in the second stage of labour. IMPLICATIONS FOR PRACTICE: This study suggests upright positions could improve women's birth experience and have the potential to be widely applied in clinical practice.


Assuntos
Posicionamento do Paciente , Postura , Gravidez , Feminino , Humanos , Adulto Jovem , Adulto , Segunda Fase do Trabalho de Parto , População do Leste Asiático , Parto Obstétrico
5.
J Clin Nurs ; 32(11-12): 2575-2591, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35343004

RESUMO

AIMS: To compare the effects of the adoption of lateral positions and lithotomy positions during the passive and active phases of the second stage of labour on perineal outcomes. DESIGN: An observational study with prospectively collected data, conducted in three hospitals in China. METHOD: Attending midwives recorded the perineal outcomes and characteristics of women giving birth between July-November 2020. Binary logistic regression was performed to explore the effects of lateral positions on perineal outcomes during different phases of the second stage of labour. The STROBE guidelines guided the reporting of this study. RESULTS: Among primiparous women, when compared with those who adopted lateral positions during the passive phase of the second stage of labour and changed to lithotomy positions during the active phase, women who assumed lateral positions during both the passive and active phases had a higher rate of intact perineum/first-degree perineal tears and a reduced risk of episiotomy, and episiotomy/second-degree perineal tears. No significant difference was found in perineal outcomes between those who assumed lithotomy positions during the passive and active phases and those who adopted lateral positions during the passive phase and changed to lithotomy positions during the active phase. No significant difference was found in perineal outcomes among multiparous women, regardless of different positions adopted at the passive and/or the active phase. CONCLUSION: Lateral positions during the active phase may have protective effects on the perineum in primiparous women. However, adopting lateral positions only during the passive phase did not promote better perineal outcomes, regardless of parity. RELEVANCE TO CLINICAL PRACTICE: This study will provide a further reference for the use of lateral positions during different phases of the second stage of labour among primiparous and multiparous women in clinical practice, contributing to the perineal protection during childbirth.


Assuntos
Segunda Fase do Trabalho de Parto , Posicionamento do Paciente , Períneo , Feminino , Humanos , Gravidez , Parto Obstétrico/efeitos adversos , População do Leste Asiático , Episiotomia , Parto
6.
Women Birth ; 36(1): e118-e124, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35568665

RESUMO

BACKGROUND: Many high-income countries have seen an increase in severe perineal trauma. Teaching strategies and conditions for learning during the active second stage of labour are scarcely described. AIM: To describe midwifery preceptors and midwifery students' experiences' of teaching and learning how to manage the second stage of labour, with the specific aim of preventing severe perineal trauma. METHODS: A qualitative study with focus group discussions and individual in depth-interviews with preceptor midwives (n = 23) and student midwives (n = 10). Data were analysed by qualitative content analysis. RESULTS: "A complex and demanding situation with mutual need for feedback, reflection and safety" was the overall theme describing the conditions. Three sub-themes were identified. "Adapting to a unique situation" refers to the difficulty of teaching and learning the aspects needed to prevent severe perineal trauma, and to provide care during this stage. "Hindering and limiting circumstances" describes teaching strategies that were perceived negatively, and how midwifery students tried to adapt to the preceptors rather than the birthing women. "A trustful and communicative relationship" describes the importance of the relationship between the student and the preceptor, where communication was a central, but not obvious part. CONCLUSION: An increased awareness among preceptors is needed to optimize teaching strategies, enabling the students to focus on learning the art of the second stage of labour; supporting the woman, preventing severe perineal trauma and ensuring the safety of the unborn baby. Future research should address how existing prevention models can include training to increase preceptors' confidence in teaching.


Assuntos
Tocologia , Estudantes de Enfermagem , Gravidez , Humanos , Feminino , Tocologia/educação , Aprendizagem , Parto , Pesquisa Qualitativa , Ensino
7.
J Nurs Manag ; 30(7): 3608-3617, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36121431

RESUMO

AIMS: This study aimed to develop a Practice Programme for Upright Positions in the Second Stage of Labour to provide a reference for midwifery professionals in the standardized implementation of upright positions in clinical practice. BACKGROUND: The adoption of upright positions in the second stage of labour is recommended by many international organizations, but upright positions have not been widely used and their implementation varies greatly across studies. METHODS: The Practice Programme for Upright Positions in the Second Stage of Labour was developed under the guidance of the Medical Research Council framework for developing and evaluating complex interventions and the World Health Organization handbook for guideline development. Four stages were conducted: (1) establishing the intervention development group, (2) identifying a theoretical basis and forming a content framework, (3) evidence retrieval and synthesis and (4) refining and modelling the practice programme. RESULTS: The content framework of the Practice Programme for Upright Positions in the Second Stage of Labour was formed based on the literature review, semi-structured interviews and expert consultation, including indications and contraindications, implementation methods, observations, potential risks and precautions. According to each item, we conducted a series of systematic reviews, and summarized the available best evidence from clinical guidelines, systematic reviews and original studies. Eventually, the Practice Programme for Upright Positions in the Second Stage of Labour was developed, integrating the findings of the iterative evidence reviews and revised by stakeholders. CONCLUSIONS: This study first reported the development process of the Practice Programme for Upright Positions in the Second Stage of Labour, characterized by evidence-based, iteratively processed and highly rigorous. The implications may guide researchers to embed the intervention normatively into clinical practice for improving maternal and infant outcomes. IMPLICATIONS FOR NURSING MANAGEMENT: The Practice Programme for Upright Positions in the Second Stage of Labour could facilitatesystematic management of labour positions and guide midwives in the successful implementation of upright positions.


Assuntos
Pesquisa Biomédica , Segunda Fase do Trabalho de Parto , Gravidez , Feminino , Humanos , Posicionamento do Paciente , Postura , Revisões Sistemáticas como Assunto
8.
Midwifery ; 114: 103458, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35998420

RESUMO

OBJECTIVE: Upright positions in the second stage of labour are recommended by many labour and birth guidelines, but they have not been widely used in China and the implementation varies greatly. Given this, we developed a Practice Programme for Upright Positions in the Second Stage of Labour (UPSSL Programme). Whether the UPSSL Programme can be translated into action in the local context is a crucial issue that needs to be further explored. This study aimed to explore barriers and facilitators to the implementation of the UPSSL Programme in the Chinese context to facilitate the integration of evidence and routine clinical practice. DESIGN: A descriptive qualitative design was adopted. SETTING: The study was conducted in the maternity unit of a tertiary general hospital in China. PARTICIPANTS: A purposeful sampling was used to recruit midwives, obstetricians and their leaders. Data were collected through semi-structured face-to-face interviews. The Consolidated Framework for Implementation Research was used to guide the development of interview guide and the analysis of qualitative data. The study was reported following the Standards for Reporting Qualitative Research. FINDINGS: Twelve eligible participants were interviewed, including eight midwives, two obstetricians, the head nurse of the delivery room, and the head of the maternity unit. Eight barriers and 10 facilitators were identified by using the directed content analysis. The barriers to implementing the UPSSL Programme were professionals' concerns about the potential risks of the programme (relative advantage), higher complexity (complexity), placement method of upright positions presented without pictures (design quality & packaging), staff shortage (cost), limited understanding of parturients' needs (patient needs & resources), lack of a training protocol for professionals (available resources), professionals' limited knowledge and skills in the programme (knowledge & beliefs about the intervention), and lack of confidence in the successful implementation of the programme (self-efficacy). KEY CONCLUSIONS: Participants expressed several barriers and facilitators to implementing the UPSSL Programme in clinical practice in the Chinese context. IMPLICATIONS FOR PRACTICE: The findings provide a reference for the development of targeted implementation strategies that could promote the integration of evidence and routine clinical practice, and thus facilitate the normative application and promotion of upright positions in China.


Assuntos
Segunda Fase do Trabalho de Parto , Tocologia , Humanos , Feminino , Gravidez , Pesquisa Qualitativa , Parto , Tocologia/métodos , China
9.
Afr J Prim Health Care Fam Med ; 14(1): e1-e9, 2022 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-35532110

RESUMO

BACKGROUND:  'Doing what the Romans do in Rome' was an expression raised by one of the midwives following workplace culture and disregarding women's birth choices. Midwifery practice in South Africa caters for a culturally diverse ethnic groups of childbearing women. Culturally appropriate care highlights the importance of including women in decision-making concerning their birth preferences including maternal positions during labour. Women's right to choose their maternal position and cultural preferences during labour has been overlooked, leading to poor maternal healthcare provision and negative birth experiences. AIM:  In this article, the researchers aimed to describe and explore midwives' perspectives on culturally appropriate care to support maternal positions during the second stage of labour. SETTING:  Midwives working in the maternity ward in a public hospital in South Africa. METHODS:  A qualitative descriptive design using individual interviews was used to collect data. The participants were selected using the purposive sampling method. The study population comprised 20 midwives who volunteered to participate in the study. Data were transcribed manually and analysed using thematic analysis. RESULTS:  The four main themes are as follows: (1) Caring for women from various ethnic groups, (2) midwives disregard women's beliefs and culture, (3) midwife personal cultural attributes and (4) midwifery unit workplace culture. CONCLUSION:  The authors concluded that culturally appropriate care towards the women's choices of birth position during the second stage of labour should form an integral part of the midwifery care rendered.


Assuntos
Serviços de Saúde Materna , Tocologia , Feminino , Hospitais Públicos , Humanos , Segunda Fase do Trabalho de Parto , Tocologia/métodos , Gravidez , Pesquisa Qualitativa , África do Sul
10.
BJOG ; 2022 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-35411684

RESUMO

AIM: To describe standardised iterative methods used by a multidisciplinary group to develop evidence-based clinical intrapartum care algorithms for the management of uneventful and complicated labours. POPULATION: Singleton, term pregnancies considered to be at low risk of developing complications at admission to the birthing facility. SETTING: Health facilities in low- and middle-income countries. SEARCH STRATEGY: Literature reviews were conducted to identify standardised methods for algorithm development and examples from other fields, and evidence and guidelines for intrapartum care. Searches for different algorithm topics were last updated between January and October 2020 and included a combination of terms such as 'labour', 'intrapartum', 'algorithms' and specific topic terms, using Cochrane Library and MEDLINE/PubMED, CINAHL, National Guidelines Clearinghouse and Google. CASE SCENARIOS: Nine algorithm topics were identified for monitoring and management of uncomplicated labour and childbirth, identification and management of abnormalities of fetal heart rate, liquor, uterine contractions, labour progress, maternal pulse and blood pressure, temperature, urine and complicated third stage of labour. Each topic included between two and four case scenarios covering most common deviations, severity of related complications or critical clinical outcomes. CONCLUSIONS: Intrapartum care algorithms provide a framework for monitoring women, and identifying and managing complications during labour and childbirth. These algorithms will support implementation of WHO recommendations and facilitate the development by stakeholders of evidence-based, up to date, paper-based or digital reminders and decision-support tools. The algorithms need to be field tested and may need to be adapted to specific contexts. TWEETABLE ABSTRACT: Evidence-based intrapartum care clinical algorithms for a safe and positive childbirth experience.

11.
Int Urogynecol J ; 33(6): 1583-1590, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35020035

RESUMO

INTRODUCTION AND HYPOTHESIS: Obstetrical anal sphincter injury (OASIS) is a common consequence of vaginal delivery in nulliparas and carries the risk of short- and long-term morbidity. The objective of this study was to estimate the association between the duration of the second stage of labour and OASIS risk. METHODS: A population-based, retrospective cohort of nulliparas delivering singleton, vertex, non-anomalous fetuses at term in Nova Scotia, Canada, from 2005 to 2019, were identified using the Nova Scotia Atlee Perinatal Database. Poisson regression models were used to estimate risk ratios (RR) with robust 95% confidence intervals (CI) adjusting for confounding variables to investigate the association between the length of the second stage and OASIS in the entire cohort and in operative vaginal deliveries. RESULTS: Of 36,662 participants, 7.6% sustained an OASIS (6.8% third-degree, 0.8% fourth-degree tear). The proportion of participants who sustained an OASIS increased over the study period. For each 30-min increase in the length of second stage, the OASIS risk increased by 11% (RR 1.11, 95% CI 1.10-1.12). When stratified by mode of delivery, second stage length ≥ 90 min was associated with an increased OASIS risk in spontaneous (RR 1.35, 95% CI 1.15-1.58) and vacuum-assisted vaginal deliveries (RR 1.42, 95% CI 1.11-1.81). In forceps-assisted vaginal deliveries, OASIS risk was increased, with shorter and longer durations of the second stage. CONCLUSION: Increasing length of the second stage of labour was associated with increasing risk of OASIS overall, but the association was heterogeneous between modes of delivery. Length of the second stage should be considered in counseling about OASIS risk.


Assuntos
Canal Anal , Complicações do Trabalho de Parto , Canal Anal/lesões , Estudos de Coortes , Parto Obstétrico/efeitos adversos , Feminino , Humanos , Segunda Fase do Trabalho de Parto , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/etiologia , Gravidez , Estudos Retrospectivos , Fatores de Risco
12.
Paediatr Perinat Epidemiol ; 36(3): 358-367, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34964511

RESUMO

BACKGROUND: Active first stage of labour duration can widely vary between women. However, the nature of the relationship between the active first stage and second stage of labour duration is sparsely studied. OBJECTIVES: To determine whether active first stage of labour duration (i) influences second stage of labour duration; and (ii) is associated with mode of delivery. METHODS: A population-based cohort study of 13,379 women primiparous women, with spontaneous start in Stockholm-Gotland Region, Sweden, between 2008 and 2014. Duration of the active first stage of labour was examined in relation to second-stage duration using univariate and multivariable quantile regressions, with the first quartile (first stage duration) as the reference. Nonlinearity of associations was tested by restricted cubic splines. Association between active first-stage duration with mode of delivery was estimated using a multinomial logistic regression based on adjusted odds ratios. RESULTS: Longer active first stage of labour duration was linearly associated with longer second stage of labour duration until approximately 12 h of active first stage of labour duration. After 12 h, a non-linear trend is seen, demonstrated by a plateau in the second-stage duration. In addition, longer active first stage of labour duration was associated with increased occurrence of operative vaginal delivery (adjusted odds ratio 3.36, 95% confidence interval [CI] 2.89, 3.89) and caesarean delivery (adjusted odds ratio 4.75, 95% CI 3.85, 5.80). CONCLUSIONS: Among primiparous women with spontaneous onset of labour, longer active first stage of labour duration was associated with both longer second stage of labour duration and higher odds of operative delivery. This study contributes with findings, which may inform future discussions regarding how to properly account for second-stage duration, with applications in obstetric and perinatal epidemiology.


Assuntos
Parto Obstétrico , Segunda Fase do Trabalho de Parto , Cesárea , Estudos de Coortes , Feminino , Humanos , Masculino , Razão de Chances , Gravidez
13.
BJOG ; 128(11): 1824-1832, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33713380

RESUMO

OBJECTIVE: To create a personalised machine learning model for prediction of severe adverse neonatal outcomes (SANO) during the second stage of labour. DESIGN: Retrospective Electronic-Medical-Record (EMR) -based study. POPULATION: A cohort of 73 868 singleton, term deliveries that reached the second stage of labour, including 1346 (1.8%) deliveries with SANO. METHODS: A gradient boosting model was created, analysing 21 million data points from antepartum features (e.g. gravidity and parity) gathered at admission to the delivery unit, and intrapartum data (e.g. cervical dilatation and effacement) gathered during the first stage of labour. Deliveries were allocated to high-risk and low-risk groups based on the Youden index to maximise sensitivity and specificity. MAIN OUTCOME MEASURES: SANO was defined as either umbilical cord pH levels ≤7.1 or 1-minute or 5-minute Apgar score ≤7. RESULTS: The model for prediction of SANO yielded an area under the receiver operating curve (AUC) of 0.761 (95% CI 0.748-0.774). A third of the cohort (33.5%, n = 24 721) were allocated to a high-risk group for SANO, which captured up to 72.1% of these cases (odds ratio 5.3, 95% CI 4.7-6.0; high-risk versus low-risk groups). CONCLUSIONS: Data acquired throughout the first stage of labour can be used to predict SANO during the second stage of labour using a machine learning model. Stratifying parturients at the beginning of the second stage of labour in a 'time out' session, can direct a personalised approach to management of this challenging aspect of labour, as well as improve allocation of staff and resources. TWEETABLE ABSTRACT: Personalised prediction score for severe adverse neonatal outcomes in labour using machine learning model.


Assuntos
Parto Obstétrico/estatística & dados numéricos , Segunda Fase do Trabalho de Parto , Aprendizado de Máquina , Admissão do Paciente/estatística & dados numéricos , Resultado da Gravidez , Adulto , Feminino , Número de Gestações , Humanos , Apresentação no Trabalho de Parto , Primeira Fase do Trabalho de Parto , Complicações do Trabalho de Parto/diagnóstico , Paridade , Valor Preditivo dos Testes , Gravidez , Curva ROC , Estudos Retrospectivos
14.
Women Birth ; 34(3): e279-e285, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32434683

RESUMO

PROBLEMS: Complications for newborns and postpartum clients in the hospital are more frequent after a prolonged second stage of labour. Midwives in community settings have little research to guide management in their settings. AIM: We explored how US birth centre midwives identify onset of second stage of labour and determine when to transfer clients to the hospital for prolonged second stage. METHODS: Ethnographic interviews of midwives with at least 2 years' experience in birth centres and participant observation of birth centre care. FINDINGS: We interviewed 21 midwives (18 CNMs, 3 CPMs/equivalent) from 18 birth centres in 11 US states, 45% with hospital practice privileges. Midwives relied on and engaged in embodied practice in evaluating each labour and making decisions concerning management of labour. Midwives considered time a useful but limited measure as a guiding factor in management. Though ideas of time and progress do play an important role in the decision-making process of midwives, their usefulness is limited due to the continual, multifactorial, and multisensory nature of the assessment. Relationship with the transfer hospital structured midwives' decision-making about transfers. DISCUSSION & CONCLUSION: These findings can inform future robust multivariate evaluation of factors, including but not limited to time, in guidelines for management of second stage of labour. Optimal management may require formal consideration of more than just time and parity. Our findings also suggest the need for evaluation of how structural issues involving hospital privileges for midwives and relationships between birth centre and hospital staff affect the well-being of childbearing families.


Assuntos
Centros de Assistência à Gravidez e ao Parto , Parto Obstétrico/psicologia , Segunda Fase do Trabalho de Parto , Tocologia/métodos , Enfermeiros Obstétricos/psicologia , Complicações do Trabalho de Parto/psicologia , Transferência de Pacientes/estatística & dados numéricos , Adulto , Antropologia Cultural , Austrália , Centros de Assistência à Gravidez e ao Parto/organização & administração , Continuidade da Assistência ao Paciente , Feminino , Humanos , Recém-Nascido , Entrevistas como Assunto , Segunda Fase do Trabalho de Parto/psicologia , Obstetrícia , Gravidez , Pesquisa Qualitativa , Fatores de Tempo
15.
Midwifery ; 91: 102843, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32992159

RESUMO

OBJECTIVE: To compare the effectiveness of directed open-glottis and directed closed-glottis pushing. DESIGN: Pragmatic, randomised, controlled, non-blinded superiority study. SETTINGS: Four French hospitals between July 2015 and June 2017 (2 academic hospitals and 2 general hospitals). PARTICIPANTS: 250 women in labour who had undergone standardised training in the two types of pushing with a singleton fetus in cephalic presentation at term (≥37 weeks) were included by midwives and randomised; 125 were allocated to each group. The exclusion criteria were previous caesarean birth or fetal heart rate anomaly. Participants were randomised during labour, after a cervical dilation ≥ 7 cm. INTERVENTIONS: In the intervention group, open-glottis pushing was defined as a prolonged exhalation contracting the abdominal muscles (pulling the stomach in) to help move the fetus down the birth canal. Closed-glottis pushing was defined as Valsalva pushing. MEASUREMENTS: The principal outcome was "effectiveness of pushing" defined as a spontaneous birth without any episiotomy, second-, third-, or fourth-degree perineal lesion. The results in our intention-to-treat analysis are reported as crude relative risks (RR) with their 95% confidence intervals. A multivariable analysis was used to take the relevant prognostic and confounding factors into account and obtain an adjusted relative risk (aRR). FINDINGS: In our intention-to-treat analysis, most characteristics were similar across groups including epidural analgesia (>95% in each group). The mean duration of the expulsion phase was longer among the open-glottis group (24.4 min ± 17.4 vs. 18.0 min ± 15.0, p=0.002). The two groups did not appear to differ in the effectiveness of their pushing (48.0% in the open-glottis group versus 55.2% in the closed-glottis group, for an adjusted relative risk (aRR) of 0.92, 95% confidence interval (CI) 0.74-1.14) or in their risk of instrumental birth (aRR 0.97, 95%CI 0.85-1.10). KEY CONCLUSIONS: In maternity units with a high rate of epidural analgesia, the effectiveness of the type of directed pushing does not appear to differ between the open- and closed-glottis groups. IMPLICATIONS FOR PRACTICE: If directed pushing is necessary, women should be able to choose the type of directed pushing they prefer to use during birth. Professionals must therefore be trained in both types so that they can adequately support women as they give birth.


Assuntos
Exercícios Respiratórios/normas , Parto Obstétrico/normas , Glote/fisiologia , Segunda Fase do Trabalho de Parto/fisiologia , Adulto , Exercícios Respiratórios/métodos , Exercícios Respiratórios/estatística & dados numéricos , Parto Obstétrico/métodos , Parto Obstétrico/estatística & dados numéricos , Feminino , França , Humanos , Gravidez
16.
Midwifery ; 90: 102817, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32805592

RESUMO

OBJECTIVE: The overall aim of this study was to collate information to inform the updating of a perineal management educational programme for midwives. This paper explores midwives' confidence and educational needs in managing the woman's perineum during the second stage of labour, focusing on future quality initiatives to improve midwives' experiences and expertise in the prevention of perineal trauma during birth. DESIGN: A mixed-methods sequential exploratory design was used. PARTICIPANTS AND SETTING: Midwives and clinical midwife managers assisting with births in the labour ward of a large urban university stand-alone maternity hospital in the Republic of Ireland with approximately 9,000 births per year participated in the study. MEASUREMENTS: A questionnaire and two focus groups were used to collect the data. FINDINGS: Fifty-two midwives from a total of 64 eligible labour ward midwives completed the questionnaire, a response rate of 81.2%. Midwives indicated that perineal management workshops did not cover prevention of perineal trauma, and mainly focused on suturing and repair of the perineum. The majority of midwives (85%) indicated that they would like further education on the prevention of perineal trauma. Higher levels of confidence in making a decision to perform an episiotomy, infiltrating the perineum and at performing an episiotomy were reported in experienced midwives. Midwives want improved and additional education in the management of women's perinea during the second stage of labour and made various recommendations regarding the content, format, timing and frequency of the workshop. Suggestions for further education included techniques for preventing perineal trauma during labour and birth and how to perform an episiotomy. KEY CONCLUSIONS: This study provides key insights into midwives' confidence and educational needs in relation to managing the woman's perineum during the second stage of labour. The findings from this study demonstrates the appetite of midwives for additional education in the area of perineal management, particularly prevention strategies. IMPLICATIONS FOR PRACTICE: Midwives play an essential role in reducing the rates of perineal trauma through regular education. It is therefore important that midwives keep up to date with the best available evidence. Updating existing perineal management educational programmes that are tailor made to midwives' needs could not only improve clinical skills and perineal protection techniques but also midwives' confidence in decision making. The overall aim is to reduce perineal trauma in women having a spontaneous vaginal birth.


Assuntos
Episiotomia/enfermagem , Avaliação das Necessidades , Enfermeiros Obstétricos/psicologia , Períneo/lesões , Autoeficácia , Adolescente , Adulto , Episiotomia/normas , Episiotomia/estatística & dados numéricos , Feminino , Grupos Focais/métodos , Humanos , Irlanda , Masculino , Pessoa de Meia-Idade , Enfermeiros Obstétricos/estatística & dados numéricos , Complicações do Trabalho de Parto/prevenção & controle , Gravidez , Pesquisa Qualitativa , Inquéritos e Questionários
17.
BMC Pregnancy Childbirth ; 20(1): 298, 2020 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-32410592

RESUMO

BACKGROUND: To evaluate the perinatal status of neonates delivered by assisted vaginal delivery (AVD) versus second-stage caesarean birth (CS). METHODS: A 5-year retrospective study was conducted in a tertiary hospital. Data was analyzed with IBM SPSS® version 25.0 statistical software using descriptive/inferential statistics. RESULTS: A total of 559 births met the inclusion criteria; AVD (211; 37.7%) and second-stage CS (348; 62.3%). Over 80% of the women were aged 20-34 years: 185 (87.7%) for the AVD group, and 301 (86.5%) for the second-stage CS group. More than half of the women were parous: 106 (50.2%) for the AVD group, and 184 (52.9%) for the second-stage CS group. The commonest indication for intervention in both groups is delayed second stage: 178 (84.4%) in the AVD group, and 239 (68.9%) in the second-stage CS group. There was a statistically significant difference in decision to delivery interval (DDI) between both groups: 197 (93.4%) women in the AVD group had DDI of less than 30 min and 21 women (6.0%) in the CS group had a DDI of less than 30 min (p <  0.001). During the DDI, there were 3 (1.4%) intra-uterine foetal deaths (IUFD) in the AVD and 19 (5.5%) in the CS group (p = 0.023). After adjusting for co-variates, there were statistically significant differences between the AVD and CS groups in the foetal death during DDI (p = 0.029) and perinatal deaths (p = 0.040); but no statistically significant differences in severe perinatal outcomes (p = 0.811), APGAR scores at 5th minutes (p = 0.355), and admission into the NICU (p = 0.946). After adjusting for co-variates, use of AVD was significantly associated with the level of experience of the care provider, with resident (junior) doctors less likely to opt for AVD than CS (aOR = 0.45, 95% CI: 0.29-0.70). CONCLUSION: Second-stage CS when compared with AVD was not associated with improved perinatal outcomes. AVD is a practical option for reducing the rising Caesarean delivery rates without compromising the clinical status of the newborn.


Assuntos
Cesárea/estatística & dados numéricos , Segunda Fase do Trabalho de Parto , Vácuo-Extração/estatística & dados numéricos , Adulto , Índice de Apgar , Feminino , Humanos , Recém-Nascido , Nigéria , Parto , Gravidez , Estudos Retrospectivos , Centros de Atenção Terciária , Adulto Jovem
18.
Aust N Z J Obstet Gynaecol ; 60(3): 382-388, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31514230

RESUMO

BACKGROUND: Expediting delivery in the second stage of labour often involves a choice between a caesarean section at full dilatation or mid-cavity instrumental delivery. Accumulating evidence suggests that the mode of delivery may influence the risk of preterm birth in the subsequent pregnancy. AIMS: To directly compare first birth caesarean section at full dilatation with mid-cavity instrumental delivery for the risk of preterm birth in the subsequent pregnancy (second birth). A further aim was to identify predictive factors associated with these index modes of delivery. MATERIALS AND METHODS: This is a retrospective cohort study involving three maternity hospitals in western Sydney over the period of 2006-2017. Inclusion criteria were nulliparous women with a singleton term cephalic first birth delivered by caesarean section at full dilatation or mid-cavity instrumental delivery, and whose second birth also occurred under our care. Data were analysed separately for first and second births. RESULTS: There were 425 caesarean section at full dilatation and 874 mid-cavity instrumental cases which met inclusion criteria. The risk of preterm birth in the second birth was 5.7% compared to 3.2%, respectively (risk ratio 1.76; 95% CI 1.04-3.00; P = 0.035). After excluding causes of preterm birth not related to previous mode of delivery, the risk of spontaneous preterm birth was 4.3% compared to 2.0%, respectively (risk ratio 2.18; 1.14-4.19; P = 0.019). CONCLUSION: Caesarean section at full dilatation is associated with a significantly higher rate of preterm birth in the subsequent pregnancy compared to a mid-cavity instrumental delivery. This should be considered in second-stage mid-cavity decision-making.


Assuntos
Cesárea/estatística & dados numéricos , Extração Obstétrica/estatística & dados numéricos , Segunda Fase do Trabalho de Parto , Nascimento Prematuro/epidemiologia , Adulto , Austrália/epidemiologia , Estudos de Coortes , Feminino , Maternidades , Humanos , Recém-Nascido , Primeira Fase do Trabalho de Parto , Gravidez , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
19.
Aust N Z J Obstet Gynaecol ; 60(3): 336-343, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31486065

RESUMO

BACKGROUND: Epidural analgesia increases length of labour and risk of operative delivery (caesarean or instrumental). AIM: This study aimed to assess the impact of epidural anaesthesia on maternal and neonatal adverse outcomes when the second stage of labour was prolonged. METHODS: A retrospective cohort study of women delivering at term at the Mater Mother's Hospital, Brisbane between 2008 and 2017. Intrapartum, maternal and neonatal outcomes were assessed and dichotomised according to the presence of prolonged second stage of labour and further by epidural use. Prolonged second stage of labour was defined as: nulliparous women ≥3 h (with epidural) and ≥2 h (without); multiparous women ≥2 h (with epidural) and ≥1 h (without). RESULTS: There were 48 352 women who met the inclusion criteria - 43 676 without and 4676 with prolonged second stage of labour. The overall epidural rate was 35.9%. Women with epidural had significantly lower odds of achieving a spontaneous vaginal birth and higher odds of an operative birth regardless of length of second stage. While rates of several adverse maternal and neonatal outcomes were higher when the second stage was prolonged, after adjusting for clinically relevant confounders, epidural use was not associated with increased odds of the majority of these adverse outcomes. Indeed, epidural use was associated with a significant reduction in the odds of obstetric anal sphincter injuries and reduced odds of neonatal acidosis in women with prolonged second stage. CONCLUSION: While epidural increases the risk of operative birth, this is not associated with an increase in adverse maternal or neonatal outcomes.


Assuntos
Analgesia Epidural , Anestesia Epidural , Parto Obstétrico/métodos , Segunda Fase do Trabalho de Parto , Complicações do Trabalho de Parto/epidemiologia , Adulto , Austrália/epidemiologia , Feminino , Humanos , Recém-Nascido , Parto , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Fatores de Tempo
20.
Eur J Obstet Gynecol Reprod Biol ; 242: 68-70, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31563821

RESUMO

OBJECTIVES: The objective of this study was to evaluate the effect of simulation-based training on the accuracy of fetal head position determination by junior residents during the second stage of labour. STUDY DESIGN: This prospective study was conducted in a tertiary care university hospital. During an initial period of 12 weeks, 13 junior residents were asked to routinely evaluate fetal head position by digital examination during the second stage of labour, in women with term singletons in cephalic presentation. Digital examination was followed immediately by transabdominal ultrasound to confirm fetal head position, performed by an experienced physician. Following this initial period, all participants attended a workshop where simulation-based training of fetal head position determination was provided. A second 12-week period was subsequently completed, with similar characteristics to the initial one. The accuracy of clinical evaluations was assessed by the percentage of exact evaluations, the percentage of correct evaluations within a 45° error margin, and by Cohen's kappa coefficient of agreement. RESULTS: A total of 83 observations were performed in the initial period of the study and 74 observations were performed in the second period. The accuracy of fetal head position determination during the first period of the study was 59.0% (95% CI 47.7-69.7), k = 0.517 (95%CI 0.391 - 0.635), corresponding to a moderate agreement. Considering a 45° margin of error, accuracy was 71.1% (95% CI 60.1-80.5), k = 0.656 (95% CI 0.538 - 0.763), corresponding to substantial agreement. Following simulation-based training, the accuracy of fetal head position determination was 70.3% (95% CI 58.5-80.3), k = 0.651 (95% CI 0.526 - 0.785), corresponding to a substantial agreement. Considering a 45° margin of error, accuracy was 78.4% (95% CI 67.3-87.1), k = 0.745 (95% CI 0.631 - 0.854), corresponding to a substantial agreement. CONCLUSIONS: Although a trend towards increased accuracy in fetal head position determination was observed after simulation-based training, the difference was not statistically significant. Further studies are needed to clarify the role of simulation-based training for fetal head position determination during residency.


Assuntos
Apresentação no Trabalho de Parto , Obstetrícia/educação , Treinamento por Simulação , Feminino , Humanos , Gravidez
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