Birth outcomes associated with interventions in labour amongst low risk women: A population-based study

Machine learning on cardiotocography data to classify fetal outcomes: A scoping review

INTRODUCTION

Uterine contractions during labour constrict maternal blood flow and oxygen delivery to the developing baby, causing transient hypoxia. While most babies are physiologically adapted to withstand such intrapartum hypoxia, those exposed to severe hypoxia or with poor physiological reserves may experience neurological injury or death during labour. Cardiotocography (CTG) monitoring was developed to identify babies at risk of hypoxia by detecting changes in fetal heart rate (FHR) patterns. CTG monitoring is in widespread use in intrapartum care for the detection of fetal hypoxia, but the clinical utility is limited by a relatively poor positive predictive value (PPV) of an abnormal CTG and significant inter and intra observer variability in CTG interpretation. Clinical risk and human factors may impact the quality of CTG interpretation. Misclassification of CTG traces may lead to both under-treatment (with the risk of fetal injury or death) or over-treatment (which may include unnecessary operative interventions that put both mother and baby at risk of complications). Machine learning (ML) has been applied to this problem since early 2000 and has shown potential to predict fetal hypoxia more accurately than visual interpretation of CTG alone. To consider how these tools might be translated for clinical practice, we conducted a review of ML techniques already applied to CTG classification and identified research gaps requiring investigation in order to progress towards clinical implementation.

MATERIALS AND METHOD

We used identified keywords to search databases for relevant publications on PubMed, EMBASE and IEEE Xplore. We used Preferred Reporting Items for Systematic Review and Meta-Analysis for Scoping Reviews (PRISMA-ScR). Title, abstract and full text were screened according to the inclusion criteria.

RESULTS

We included 36 studies that used signal processing and ML techniques to classify CTG. Most studies used an open-access CTG database and predominantly used fetal metabolic acidosis as the benchmark for hypoxia with varying pH levels. Various methods were used to process and extract CTG signals and several ML algorithms were used to classify CTG. We identified significant concerns over the practicality of using varying pH levels as the CTG classification benchmark. Furthermore, studies needed to be more generalised as most used the same database with a low number of subjects for an ML study.

CONCLUSION

ML studies demonstrate potential in predicting fetal hypoxia from CTG. However, more diverse datasets, standardisation of hypoxia benchmarks and enhancement of algorithms and features are needed for future clinical implementation.

Factors associated with spontaneous vaginal birth in nulliparous women: A descriptive systematic review

PROBLEM

Spontaneous vaginal birth (SVB) rates for nulliparous women are declining internationally.

BACKGROUND

There is inadequate understanding of factors affecting this trend overall and limited large-scale responses to improve women's opportunity to birth spontaneously.

AIM

To undertake a descriptive systematic review identifying factors associated with spontaneous vaginal birth at term, in nulliparous women with a singleton pregnancy.

METHODS

Quantitative studies of all designs, of nulliparous women with a singleton pregnancy and cephalic presentation, who experienced a SVB at term were included. Nine databases were searched (inception to October 2022). Two reviewers undertook quality appraisal; Randomised Controlled Trials (RCTs) with high risk of bias (ROB 2.0) and other designs with (QATSDD) scoring ≤ 50% were excluded.

FINDINGS

Data were abstracted from 90 studies (32 RCTs, 39 cohort, 9 cross-sectional, 4 prevalence, 5 case control, 1 quasi-experimental). SVB rates varied (13%-99%). Modifiable factors associated with SVB included addressing fear of childbirth, low impact antenatal exercise, maternal positioning during second-stage labour and midwifery led care. Complexities arising during pregnancy and regional analgesia were shown to decrease SVB and other interventions, such as routine induction of labour were equivocal.

DISCUSSION

Antenatal preparation (low impact exercise, childbirth education, addressing fear of childbirth) may increase SVB, as does midwifery continuity-of-care. Intrapartum strategies to optimise labour progression emerged as promising areas for further research.

CONCLUSION

Declining SVB rates may be improved through multi-factorial approaches inclusive of maternal, fetal and clinical care domains. However, the variability of SVB rates testifies to the complexity of the issue.

Australian women's experiences of wearing a non-invasive fetal electrocardiography (NIFECG) device during labour

BACKGROUND

Continuous electronic fetal monitoring devices can restrict women's freedom of movement and choice of positioning during labour and birth. Despite the use of continuous electronic fetal monitoring for the past 50 years, little attention has been paid to women's experiences of wearing different fetal monitoring devices in labour.

AIM

To explore women's views and experiences of wearing a beltless continuous electronic fetal monitoring device, the non-invasive fetal electrocardiogram during labour.

METHODS

A qualitative descriptive approach was taken. Recruitment was via a larger clinical feasibility study. Some women who consented to take part in the clinical feasibility study also consented to being interviewed during the postnatal period. Transcripts were thematically analysed.

FINDINGS

Women reported improved comfort when wearing the non-invasive fetal electrocardiogram device. They appreciated how it enabled freedom of movement and an ability to actively participate in labour. They compared their experience with previous use of cardiotocography which they felt compromised their bodily autonomy. All forms of continuous electronic fetal monitoring experienced by women resulted in the unwelcome experience of 'Poking and prodding' by the midwife.

DISCUSSION

Continuous electronic fetal monitoring can negatively impact women's labour and birth experience, particularly when the measurement of fetal wellbeing is prioritised.

CONCLUSION

The way in which continuous electronic fetal monitoring technology is designed and used is an important component of optimising physiological processes and positive experiences for women during labour and birth for women with complex pregnancies. Non-invasive fetal electrocardiograpy is a promising additional option for women.

The several faces of the medicalization of birth. Italy and its peculiarities

Background

Medical-scientific advances in maternal care gradually improved the health of mothers and new-borns. However, this has contributed to increasing levels of medicalization, defined as the overuse of medical interventions even in low-risk pregnancies and childbirths. In Italy pregnancy and birth still appear to be rather medicalized than in the rest of Europe. Moreover, the uneven distribution of these practice over the territory appears to be evident. The purpose of this article is to both highlight and explain the Italian peculiarity in terms of high medicalization of childbirth and its territorial variability.

Theoretical framework

The extensive literature on medicalization of childbirth was systematized by some scholars who use childbirth as a case study to distinguish four meanings of medicalization, by classifying them into two generations of theories. Alongside this literature several studies attempted to interpret differences in maternity model of care showing the important role played by path dependence.

Results

In the European scenario, Italy stands out for its high percentage of cesarean sections, but also for its excessive recourse to antenatal visits during pregnancy and the application of interventions during labor and vaginal births. Going into regional detail, however, Italian situation appears rather uneven: relevant differences emerge in relation to medicalization of both pregnancy and birth.

Discussion

The article explores the possibility that areas whit different sociocultural, economic, political and institutional background may have introjected different meanings of medicalization, thus reproducing different maternity models of care. In fact, the simultaneous presence, in Italy, of four different meanings of medicalization seems to be rooted. Even with some similar traits, different conditions and situations emerge in different geographical areas, leading to the prevalence of one meaning rather than another and resulting on different outcomes in terms of medicalization.

Conclusion

The data presented in this article seem to deny the existence of a national maternity model of care and. On the contrary, they confirm the idea that medicalization is not necessarily linked to the different health conditions of mothers in different geographical areas and that a path dependent variable is able to explain it.

Factors associated with cesarean birth in nulliparous women: A multicenter prospective cohort study

BACKGROUND

There is widespread concern around the rising rates of cesarean births (CBs), especially among first-time mothers, despite evidence suggesting increased morbidities after birth by cesarean. There are uncertainties around factors associated with rising rates of CBs among first-time mothers in Ireland, and insight into these is essential for understanding the rising trend in CBs. Therefore, this study aimed to identify the factors associated with CBs in nulliparous women.

METHODS

A prospective cohort study was conducted in three maternity hospitals in the Republic of Ireland between 2012 and 2017. Data were collected from 3047 nulliparous women using self-administered surveys antenatally and at 3 months postpartum and from consenting women's hospital records (n = 2755) and analyzed using the Poisson regression to assess associations between demographic and clinical factors and the main outcome measures, planned and unplanned CBs.

RESULTS

Common risk factors for planned and unplanned CBs were being aged ≥40 years, being in private care, multiple pregnancy, and fetus in breech or other malpresentations. An unplanned CB occurred for 22.43% (n = 377/1681) of women who did not have induction of labor (IOL) or who had IOL with no epidural, but the risk was about twice as high for women who had IOL and epidural.

CONCLUSIONS

Findings confirm multifactorial reasons for CB and the challenge of reversing the increasing CB rate if maternal age, overweight/obesity, infertility treatment, multiple pregnancy, and preexisting hypertension in Ireland continue to increase. There is a need to address prelabor interventions, especially IOL combined with epidural analgesia with respect to unplanned CB.

Path analysis model of epidural/spinal anesthesia on breastfeeding among healthy nulliparous women: Secondary analysis of the United States Certificate of Live Births 2016

BACKGROUND

The effect of epidural/spinal anesthesia during labor on breastfeeding is unclear. Few studies had assessed whether or how medically assisted delivery (operative vaginal delivery or unscheduled cesarean birth) plays a mediating role. We aimed to examine whether the relationship between using epidural/spinal anesthesia and breastfeeding is mediated by increased medically assisted delivery among healthy nulliparous women.

METHODS

A secondary, cross-sectional analysis was conducted using US birth certificate data from 2016 (n = 381 199). Logistic regression was used to examine associations between factors. Structural equation modeling (SEM) was used to analyze the model fit of the path models and to quantify the direct, indirect, and total effect of anesthesia on breastfeeding at discharge, considering medically assisted delivery as a mediator.

RESULTS

Women who were administered epidural/spinal anesthesia were more likely to experience medically assisted delivery (adjusted odds ratio [AOR]: 95% confidence interval [CI] 3.01 (2.91-3.12)) and less likely to be breastfeeding at discharge (0.95 [0.92-0.98]). Operative vaginal and unscheduled cesarean deliveries were significantly associated with nonbreastfeeding at discharge (0.81 [0.77-0.84] and 0.81 [0.79-0.84], respectively). SEM revealed excellent model fit for our model. The indirect effect was significant (β = -0.038; 95% CI, -0.043 to -0.033), as was the total effect (β = -0.038; 95% CI, -0.043 to -0.033).

CONCLUSIONS

Epidural/spinal anesthesia is associated with nonbreastfeeding at discharge, mediated through medically assisted delivery. Health care providers should consider these risks and provide adequate support to help all parents attain their breastfeeding goals.

Factors associated with low childbirth self-efficacy for normal birth among women attending an urban prenatal clinic in Eastern Uganda

OBJECTIVE

While childbirth self-efficacy is a very important feature for normal birth, this concept has received limited scholarly attention, particularly in developing countries. This study explored childbirth self-efficacy and the associated factors amongst pregnant women.

DESIGN

A descriptive cross-sectional study. We used the Childbirth Self-Efficacy Inventory to assess childbirth self-efficacy for normal birth. and determined the associated factors.

SETTING

Jinja regional referral hospital, Uganda.

PARTICIPANTS

425 pregnant women at ≥ 28 weeks of gestation were included.

MEASUREMENTS

Participants with summated self-efficacy scores ≥ median were considered to have high childbirth self-efficacy, and those with less than the median summated score were considered to have low childbirth self-efficacy. Bivariate and multivariate binary logistic regressions were used to determine the factors associated with low childbirth self-efficacy.

FINDINGS

The Childbirth Self-Efficacy Inventory items consistently measured childbirth self-efficacy with a Cronbach's α 0.934. Childbirth self-efficacy scores ranged from 84 to 303 with a median score of 233 and a mean score of 228.7 (SD: 40.9). Dissatisfaction with prenatal care (aOR = 2.687; 95% CI: 1.124-6.427; P = 0.026), perception of community social support for women during childbirth as lacking (aOR = 2.274; 95% CI: 1.159-4.458; P = 0.017) and use and/or intention to use herbal medicines in the current pregnancy (aOR = 2.850; 95% CI: 1.553-5.232; P = 0.001) were associated with low childbirth self-efficacy for normal birth.

CONCLUSION AND IMPLICATIONS FOR PRACTICE

Low childbirth self-efficacy for normal birth was associated with dissatisfaction with prenatal care, lack of community social support for women during childbirth and use or intention to use herbal medicines in the current pregnancy. Identifying the associated characteristics and developing interventions for low childbirth self-efficacy is of clinical importance to promote normal birth.

Asking About Childhood Adversity in the Prenatal Care Setting: Cross-Sectional Associations with Maternal Health and Mental Health Outcomes

OBJECTIVES

Adverse childhood experiences (ACEs) are associated with poor physical and mental health outcomes in pregnancy, prompting many care agencies to ask about ACEs as part of routine care. However, limited research has been conducted in the clinical setting to demonstrate associations between ACEs and maternal health (i.e., pregnancy complications and birth outcomes) and mental health in pregnancy (i.e., depression, anxiety, and substance use). The aims of the current study were to: (1) examine the prevalence of ACEs reported by patients attending a maternity clinic for medically low-risk patients, and (2) evaluate whether these reports were associated with prenatal health and mental health.

METHODS

Participants included pregnant women (n = 338) receiving prenatal care at a low-risk outpatient medical clinical from June 2017 to December 2018. Total ACE scores, pregnancy complications (e.g., gestational hypertension, preeclampsia), birth outcomes (e.g., Apgar scores, preterm birth), and mental health outcomes (i.e., anxiety, depression, and substance use) were extracted from electronic medical records.

RESULTS

The majority of women (67.8%) reported experiencing no ACEs, 16.0% reported one ACE, 10.1% reported two ACEs, and 6.2% reported three or more ACEs. ACEs were associated with increased odds of prenatal depression, anxiety, and substance use in a dose-response fashion, but not pregnancy health or birth outcomes.

CONCLUSIONS FOR PRACTICE

Prevalence rates of maternal ACEs obtained in the prenatal care setting were low compared to the general population. While ACEs were positively associated with maternal mental health and substance use in pregnancy, they were not associated with pregnancy complications.

Shared Decision-Making During Labor and Birth Among Low-Risk, Active Duty Women in the U.S. Military

INTRODUCTION

The cesarean birth rate of 24.7% in the Military Health System (MHS) is lower than the national rate of 31.7%. However, the MHS rate remains higher than the 15-19% threshold associated with optimal maternal and neonatal outcomes. For active duty servicewomen, increased morbidity associated with cesarean birth is likely to affect the ability to meet the demands of assigned missions. Several decision-points occur during pregnancy and after the onset of labor that can affect the likelihood of cesarean birth including choice of provider, choice of hospital, timing of admission, and type of fetal monitoring. Evidence suggests the overuse of labor interventions may be associated with cesarean birth. Shared decision-making (SDM) is a strategy that can be used to carefully consider the risks, benefits, and alternatives of each labor intervention and is shown to be associated with positive patient outcomes. Most existing evidence explores SDM as an interaction that occurs between women and their providers. Few studies have explored the role of stakeholders such as spouses, family members, friends, labor and delivery nurses, and doulas. Furthermore, little is known about the process of SDM during labor and childbirth in the hospital setting, particularly for active duty women in the U.S. military. The purpose of this study was to propose a framework that explains the process of SDM during labor and childbirth in the hospital setting for active duty women in the U.S. military.

MATERIALS AND METHODS

A qualitatively driven mixed-methods approach was conducted to propose a framework that explains the process of SDM during labor and childbirth in the hospital setting for active duty women in the U.S. military. Servicewomen were recruited from September 2019 to April 2020. Semi-structured interviews were analyzed using a constructivist grounded theory approach. Participants also completed the SDM Questionnaire (SDM-Q-9).

RESULTS

Interviews were conducted with 14 participants. The sample included servicewomen from the Air Force (n = 7), Army (n = 4), and Navy (n = 3). Two participants were enlisted and the remainder were officers. Ten births occurred at military treatment facilities (MTFs) and six births took place at civilian facilities. The mean score on the SDM Questionnaire was 86.7 (±11.6), indicating a high level of SDM. Various stakeholders (e.g., providers, labor and delivery nurses, doulas, spouses, family members, and friends) were involved in SDM at different points during labor and birth. The four stages of SDM included gathering information, identifying preferences, discussing options, and making decisions. Events that most often involved SDM were deciding when to travel to the hospital, deciding when to be admitted, and selecting a strategy for pain management. Military factors involved in SDM included sources of information, selecting and working with civilian providers, and delaying labor interventions to allow time for an active duty spouse to travel to the hospital.

CONCLUSIONS

SDM during labor and birth in the hospital setting is a multi-stage process that involves a variety of stakeholders, including the woman, members of her social and support network, and healthcare professionals. Future research is needed to explore perspectives of other stakeholders involved in SDM.

Does giving birth in a "birth environment room" versus a standard birth room lower augmentation of labor? - Results from a randomized controlled trial

Objective

In the last decade, there has been an increased interest in exploring the impact of the physical birth environment on midwifery practice and women's birth experiences. This study is based on the hypothesis that the environment for birth needs greater attention to improve some of the existing challenges in modern obstetric practice, for example the increasing use of augmentation and number of interventions during delivery.

Study design

A randomized controlled trial was carried out to study the effect of giving birth in a specially designed "birth environment room" on the use of augmentation during labor. The study took place at the Department of Obstetrics and Gynecology, Herning Hospital, Denmark and included 680 nulliparous women in spontaneous labor at term with a fetus in cephalic presentation. Women were randomly allocated to either the "birth environment room" or a standard birth room. The primary outcome was augmentation of labor by use of oxytocin. Secondary outcomes were duration of labor, use of pharmacological pain relief, and mode of birth. Differences were estimated as relative risks (RR) and presented with 95% confidence intervals.

Results

No difference was found on the primary outcome, augmentation of labor (29.1% in the "birth environment room" versus 30.6% in the standard room, RR 0.97; 0.89-1.08). More women in the "birth environment room" used the bathtub (60.6% versus 52.4%, RR 1.18; 1.02-1.37), whereas a tendency to lower use of epidural analgesia (22.6% versus 28.2%) did not reach statistical significance (RR 0.87; 0.74-1.02). The chance of an uncomplicated birth was almost similar in the two groups (70.6% in the "birth environment room" versus 72.6% in the standard room, RR 0.97; 0.88-1.07) as were duration of labor (mean 7.9 hours in both groups).

Conclusions

Birthing in a specially designed physical birth environment did not lower use of oxytocin for augmentation of labor. Neither did it have any effect on duration of labor, use of pharmacological pain relief, and chance of birthing without complications. We recommend that future trials are conducted in birth units with greater improvement potentials.

A Swedish register-based study exploring primary postpartum hemorrhage in 405 936 full term vaginal births between 2005 and 2015

OBJECTIVE

To explore diagnoses of postpartum haemorrhage following vaginal birth, in relation to socio-demographic and obstetrical data from women who gave birth at term, in Sweden, during the years 2005-2015.

STUDY DESIGN

A register-based cohort study was carried out, describing and comparing socio-demographic variables, obstetric variables and infant variables in 52 367 cases of diagnosed postpartum haemorrhage compared to 353 569 controls without a postpartum haemorrhage diagnosis. Postpartum hemorrhage was identified in The Swedish Medical Birth Register by ICD-10 code O72. Variables for maternal characteristics were dichotomized and used to calculate odds ratios to find possible explanatory variables for postpartum haemorrhage.

RESULTS

Between 2005 and 2015 there was no statistically significant decrease in diagnoses of postpartum haemorrhage after vaginal birth at term. Primiparity was associated with the highest risk and women birthing their fifth or subsequent child were associated with the lowest risk of postpartum hemorrhage. Increased maternal age (> 35 years) and/or obesity (BMI > 30) were associated with higher odds of postpartum haemorrhage. The risk of postpartum hemorrhage was 55 % higher when vaginal birth followed induction as compared to vaginal birth after spontaneous onset. Some of the factors known to be associated with postpartum haemorrhage were poorly documented in The Swedish Medical Birth Register.

CONCLUSIONS

Birthing women in a Swedish contemporary setting are, despite efforts to improve care, still at risk of birth being complicated by postpartum haemorrhage. Primiparity, increasing maternal age and/or obesity are found to provoke an increased risk and the reasons for these findings need to be further investigated. However, grand multi-parity did not increase the risk for postpartum hemorrhage. Codes for diagnoses require correct documentation in the birth records: only when local statistics are sound and correctly reported can intrapartum care be improved, and the incidence of postpartum haemorrhage reduced.

Disruption of physiological labour; - A population register-based study among nulliparous women at term

OBJECTIVES

Current labour practices have seen an acceleration in interventions to either initiate, monitor, accelerate, or terminate the physiological process of pregnancy and childbirth. This study aimed to describe and analyse the use of interventions in childbirth in Denmark over almost two decades (2000-2017). We also examined the extent to which contemporary care adheres to current international recommendations towards restricted use of interventions.

STUDY DESIGN

A national retrospective Danish register-based cohort study including all nulliparous women with term births with singleton pregnancy and a foetus in cephalic between the years 2000 and 2017 (n = 380,326 births). Multivariate regression analyses with adjustment for change in population were performed.

MAIN OUTCOME MEASURES

Induction of labour, epidural analgesia, and augmentation of labour.

RESULTS

Between 2000/2001 and 2016/2017, the prevalence increased for induction of labour from 5.1% to 22.8%, AOR 4.84, 95% CI [4.61-5.10], epidural analgesia from 10.5% to 34.3% (AOR 4.10, 95% CI [3.95-4.26]), and augmentation of labour decreased slightly from 40.1% to 39.3% (AOR 0.84, 95% CI [0.81-0.86]). Having more than one of the three mentioned interventions increased from 12.8% in to 30.9%.

CONCLUSIONS

The number of interventions increased during the study period as well as the number of interventions in each woman. As interventions may interfere in physiological labour and carry the risk of potential short- and long-term consequences, the findings call for a careful re-evaluation of contemporary maternity care with a "first, do no harm" perspective.

The AEDUCATE Collaboration. Comprehensive antenatal education birth preparation programmes to reduce the rates of caesarean section in nulliparous women. Protocol for an individual participant data prospective meta-analysis

INTRODUCTION

Rates of medical interventions in normal labour and birth are increasing. This prospective meta-analysis (PMA) proposes to assess whether the addition of a comprehensive multicomponent birth preparation programme reduces caesarean section (CS) in nulliparous women compared with standard hospital care. Additionally, do participant characteristics, intervention components or hospital characteristics modify the effectiveness of the programme? METHODS AND ANALYSIS: Population: women with singleton vertex pregnancies, no planned caesarean section (CS) or epidural.Intervention: in addition to hospital-based standard care, a comprehensive antenatal education programme that includes multiple components for birth preparation, addressing the three objectives: preparing women and their birth partner/support person for childbirth through education on physiological/hormonal birth (knowledge and understanding); building women's confidence through psychological preparation (positive mindset) and support their ability to birth without pain relief using evidence-based tools (tools and techniques). The intervention could occur in a hospital-based or community setting.Comparator: standard care alone in hospital-based maternity units.

OUTCOMES

Primary: CS.Secondary: epidural analgesia, mode of birth, perineal trauma, postpartum haemorrhage, newborn resuscitation, psychosocial well-being.Subgroup analysis: parity, model of care, maternal risk status, maternal education, maternal socio-economic status, intervention components.

STUDY DESIGN

An individual participant data (IPD) prospective meta-analysis (PMA) of randomised controlled trials, including cluster design. Each trial is conducted independently but share core protocol elements to contribute data to the PMA. Participating trials are deemed eligible for the PMA if their results are not yet known outside their Data Monitoring Committees.

ETHICS AND DISSEMINATION

Participants in the individual trials will consent to participation, with respective trials receiving ethical approval by their local Human Research Ethics Committees. Individual datasets remain the property of trialists, and can be published prior to the publication of final PMA results. The overall data for meta-analysis will be held, analysed and published by the collaborative group, led by the Cochrane PMA group.

TRIAL REGISTRATION NUMBER

CRD42020103857.

Variation of intrapartum care and cesarean rates among practitioners attending births of low-risk, nulliparous women

BACKGROUND

Variation in hospital cesarean birth rates across the United States is likely because of differences in practitioner practice patterns. Yet, few studies conducted in the last twenty years have examined the relationships between practitioner characteristics and the use of intrapartum interventions and cesarean birth. The objective of this study was to examine associations among practitioner characteristics and the use of amniotomy, epidural, oxytocin augmentation, and cesarean birth in low-risk women with spontaneous onset of labor.

METHODS

A secondary analysis was performed using data collected by the Consortium on Safe Labor. The sample included nulliparous term singleton vertex (NTSV) births with spontaneous onset of labor (n = 13 196) from 2002 to 2007 across eight hospitals. Generalized linear mixed models were conducted to examine outcomes.

RESULTS

The cesarean birth rate ranged from 7.2% to 18.9% across hospitals and from 0% to 53.3% across physicians. Practice type (P < .05) and specialty type (P < .0001) were associated with physician cesarean birth rates. Compared with obstetrician/gynecologists, midwives were nearly twice as likely to use no intrapartum interventions (relative risk 1.80 [CI 95 1.45-2.24]) and 26% less likely to use amniotomy-epidural-oxytocin (0.74 [0.62-0.89]). Family practice physicians had a 21% lower likelihood of using amniotomy-epidural-oxytocin (0.79 [0.67-0.94]) and a 53% lower likelihood of performing cesarean births (0.47 [0.35-0.63]).

CONCLUSIONS

Wide variation in hospital and physician cesarean birth rates was observed in this sample of low-risk, nulliparous women. Practitioner practice type and specialty were significantly associated with the use of intrapartum interventions. Interprofessional practitioner education could be one strategy to reduce variation of intrapartum care and cesarean birth.

General methods for measuring and comparing medical interventions in childbirth: a framework

Background

The continue increase of interventions during labour in low risk population is a controversial issue of the current obstetric literature, given the lack of evidence demonstrating the benefits of unnecessary interventions for women or infants’ health. This makes it important to have approaches to assess the burden of all medical interventions performed.

Methods

Exploiting the nature of childbirth intervention as a staged process, we proposed graphic representations allowing to generate alternative formulas for the simplest measures of the intervention intensity namely, the overall and type-specific treatment ratios. We applied the approach to quantify the change in interventions following a protocol termed Comprehensive Management (CM), using data from Robson classification, collected in a prospective longitudinal cohort study carried out at the Obstetric Unit of the Cà Granda Niguarda Hospital in Milan, Italy.

Results

Following CM a substantial reduction was observed in the Overall Treatment Ratio, as well as in the ratios for augmentation (amniotomy and synthetic oxytocin use) and for caesarean section ratio, without any increase in neonatal and maternal adverse outcomes. The key component of this reduction was the dramatic decline in the proportion of women progressing to augmentation, which resulted not only the most practiced intervention, but also the main door towards further treatments.

Conclusions

The proposed framework, once combined with Robson Classification, provides useful tools to make medical interventions performed during childbirth quantitatively measurable and comparable. The framework allowed to identifying the key components of interventions reduction following CM. In its turn, CM proved useful to reduce the number of medical interventions carried out during childbirth, without worsening neonatal and maternal outcomes.

First assessed cervical dilatation: is it associated with oxytocin augmentation during labour? A retrospective cohort study in a university hospital in Switzerland

OBJECTIVES

The primary objective of this study was to examine the association between the first assessed cervical dilatation in a labourward and the use of oxytocin augmentation during labour. Further analysis was performed by examining the actual stage of labour at the point oxytocin was first administered to those women.

DESIGN

Retrospective cohort study with the data collected from the medical records of the hospital.

SETTING

University Hospital Bern, Switzerland PARTICIPANTS: 1933 term nulliparous and multiparous women with a singleton pregnancy giving birth during the period June 2013 and May 2017, representing Robson groups 1 and 3.

MEASUREMENTS AND FINDINGS

Descriptive statistics and multivariable logistic regression models were performed. It was found that for the entire process of labour, nulliparous and multiparous women (n = 1933) with a first cervical dilatation of 5 or more cm were less likely to be augmented with oxytocin (OR 0.64, 95% CI 0.46; 0.88 and OR 0.56, 95% CI 0.38; 0.82, respectively) compared to women with a first cervical dilatation of less than 5 cm. Out of these augmented women (n = 746) having a first cervical dilatation of 5 or more cm, they had a lower likelihood of being augmented during the first stage of labour compared to women with a first cervical dilatation of less than 5 cm (OR 0.45, 95% CI 0.29; 0.7 for nulliparae and OR 0.32, 95% CI 0.16; 0.6 for multiparae). Additionally, it was observed that other factors contributed to the application of oxytocin. One such example was that epidural analgesia was associated with a high risk of oxytocin augmentation in nulliparae (OR 13.88, 95% CI 9.29; 20.74) and multiparae (OR 15.52, 95% CI 9.94; 24.22). The application of oxytocin was also found to affect the caesarean section rate in nulliparous and multiparous women as it was 20% and 13% respectively for those with oxytocin versus 13% and 4% respectively for those without oxytocin.

KEY CONCLUSIONS

Early admission to the labourward is associated with an increased use of oxytocin to augment labour, particularly, during the first stage of labour. Epidural analgesia is a main predictor for oxytocin augmentation in nulliparous and multiparous women.

IMPLICATIONS FOR PRACTICE

Pregnant women warrant more appropriate support during early labour, avoiding early maternal exhaustion and excessive obstetrical interventions.

Women's information needs, decision-making and experiences of membrane sweeping to promote spontaneous labour

OBJECTIVE

To explore and synthesise evidence of women's information needs, decision-making and experiences of membrane sweeping to promote spontaneous labour.

DESIGN

A systematic review following the Joanna Briggs Institute (JBI) meta-aggregative approach to qualitative evidence synthesis. Relevant databases were searched for literature published in English between 2000-19. Study quality was assessed using the JBI quality assessment tool for qualitative studies.

SETTING

Qualitative research conducted in OECD countries describing women's information needs, decision-making and/or experiences of membrane sweeping to promote spontaneous labour.

FINDINGS

One article met the criteria for inclusion. This article describes the experience of a membrane sweep given without consent.

KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

There is a lack of evidence around women's information needs, decision-making and experiences of membrane sweeping. This is concerning, especially in the context of rising rates of formal induction of labour. Further research is needed to investigate how women are being offered membrane sweeping and what information women need to make informed choices about membrane sweeping to promote spontaneous labour.

Symptoms of Discomfort and Problems Associated with Mode of Delivery During the Puerperium: An Observational Study

Despite abundant literature on antenatal and delivery care received by pregnant women, there is a wide knowledge gap on the prevalence of symptoms of discomfort or problems during the postpartum period and their relationship with the mode of delivery. This cross-sectional study, carried out with 3324 participants in Spain in 2017, aimed to investigate the association between the mode of delivery and self-reported postpartum symptoms of discomfort and maternal problems during the puerperium. An ad hoc online questionnaire was used to collect data on socio-demographic and obstetric variables, symptoms of discomfort, and maternal problems during the puerperium. The crude odds ratios (OR) and adjusted OR (aOR) and their 95% confidence intervals (95%CI) were calculated using binary logistic regression. In total, 3324 women participated. Compared to a normal vaginal delivery, having a cesarean section was associated with increased odds of an infected surgical wound (aOR: 11.62, 95%CI: 6.77–19.95), feeling sad (aOR: 1.31, 23 95%CI: 1.03–1.68), and symptoms of post-traumatic stress (aOR: 4.64, 95%CI: 2.94–7.32). Instrumental delivery vs. normal vaginal delivery was a risk factor for constipation (aOR: 1.35 95%CI: 25 1.10–1.66), hemorrhoids (aOR: 1.28, 95%CI: 1.04–1.57), urinary incontinence (aOR: 1.30, 95%CI: 26 1.05–1.61), and fecal incontinence (aOR: 1.94, 95%CI: 1.29–2.92) during the puerperium. Women who gave delivery via cesarean section or instrumental delivery had higher incidences of infection and psychological alterations than those who had a normal vaginal delivery. Identifying women at risk of giving birth by cesarean section and informing them about subsequent symptoms of discomfort and maternal problems during the puerperium must be included in pregnancy health program policies and protocols to allow women to make informed decisions regarding their birthing plan.

Associations Among Intrapartum Interventions and Cesarean Birth in Low-Risk Nulliparous Women with Spontaneous Onset of Labor

INTRODUCTION

Cesarean birth rates vary widely across hospitals in the United States, even among women who are considered low-risk for the procedure. This variation has been attributed to differences in health care provider practice, but few studies have explored patterns of labor management in relation to cesarean birth.

METHODS

This was a retrospective observational study of 26,259 nulliparous, term, singleton gestation, vertex presentation births following spontaneous onset of labor. Births occurred from 2002 to 2007 in 11 hospitals in the Consortium on Safe Labor. Generalized linear mixed modeling was used to examine the relationship between intrapartum interventions (amniotomy, epidural analgesia, oxytocin augmentation) used individually and in combination and the outcome of cesarean birth.

RESULTS

More than 90% of the women in this low-risk sample received at least one intervention regardless of mode of birth. Epidural analgesia was the most frequently applied intervention, both when used as a single intervention (18.7%) and in combination with other interventions (79.9%). The strongest associations between these interventions and cesarean birth were observed when 2 or 3 interventions were applied during labor. Compared with women who received no interventions, the strongest association was observed among women who received amniotomy-oxytocin augmentation (adjusted odds ratio [aOR], 1.89; 95% CI, 1.36-2.62). The use of all 3 interventions (amniotomy-epidural analgesia-oxytocin augmentation) showed a similar positive association with cesarean birth (aOR 1.83; 95% CI, 1.50-2.21).

DISCUSSION

Findings show that the combined use of amniotomy, epidural analgesia, and oxytocin augmentation is positively associated with cesarean birth. Additional research is needed to examine the timing and sequence of interventions as well as whether a causal relationship exists between combinations of interventions and cesarean birth in low-risk nulliparous women.

“Babies come when they are ready”: Women’s experiences of resisting the medicalisation of prolonged pregnancy

Being pregnant beyond one’s estimated due date is a relatively common experience and requires complex decisions about whether to induce labour or wait for spontaneous onset. We report a qualitative study undertaken in the UK in 2016. We interviewed fifteen women and eleven more took part in an online focus group. Using thematic analysis, resistance to the medicalisation of prolonged pregnancy was identified as a strong theme. Drawing on the work of Armstrong and Murphy, we identify both conceptual and behavioural resistance in the accounts of women who accepted, delayed or declined induction of labour. Experiential knowledge played a key role in resistance, but women found this was devalued. Some healthcare staff used risk discourse to pressure women to comply with induction protocols but were unwilling to engage in discussion. The social context provided further pressure to produce a baby ‘on time’, with induction normalised as the way to manage prolonged pregnancy. Online spaces provided additional information and support for women to question the medicalisation of prolonged pregnancy. We end by considering the implications for policies of choice and agency in maternity care as well as the need for additional social support for women who are ‘overdue’.

Regional variations in childbirth interventions in the Netherlands: a nationwide explorative study

BACKGROUND

Although interventions in childbirth are important in order to prevent neonatal and maternal morbidity and mortality, non-indicated use may cause avoidable harm. Regional variations in intervention rates, which cannot be explained by maternal characteristics, may indicate over- and underuse. The aim of this study is to explore regional variations in childbirth interventions in the Netherlands and their associations with interventions and adverse outcomes, controlled for maternal characteristics.

METHODS

Childbirth intervention rates were compared between twelve Dutch regions, using data from the national perinatal birth register for 2010-2013. All single childbirths from 37 weeks' gestation onwards were included. Primary outcomes were induction and augmentation of labour, pain medication, instrumental birth, caesarean section (prelabour, intrapartum) and paediatric involvement. Secondary outcomes were adverse neonatal and maternal outcomes. Multivariable logistic regression analyses were used to adjust for maternal characteristics. Associations were expressed in Spearman's rank correlation coefficients.

RESULTS

Most variation was found for type of pain medication and paediatric involvement. Epidural analgesia rates varied from between 12 and 38% (nulliparous) and from between 5 and 14% (multiparous women). These rates were negatively correlated with rates of other pharmacological pain relief, which varied from between 15 and 43% (nulliparous) and from between 10 and 27% (multiparous). Rates of paediatric involvement varied from between 37 and 60% (nulliparous) and from between 26 and 43% (multiparous). For instrumental vaginal births, rates varied from between 16 and 19% (nulliparous) and from between 3 and 4% (multiparous). For intrapartum caesarean section, the variation was 13-15% and 5-6%, respectively. A positive correlation was found between intervention rates in midwife-led and obstetrician-led care at the onset of labour within the same region. Adverse neonatal and maternal outcomes were not lower in regions with higher intervention rates. Higher augmentation of labour rates correlated with higher rates of severe postpartum haemorrhage.

CONCLUSIONS

Most variation was found for type of pain medication and paediatric involvement, and least for instrumental vaginal births and intrapartum caesarean sections. Care providers and policy makers should critically audit remarkable variations, since these may be unwarranted. Limited variation for some interventions may indicate consensus for their use. Further research should focus on variations in evidence-based interventions and indications for the use of interventions in childbirth.

Variations in childbirth interventions in high-income countries: protocol for a multinational cross-sectional study

INTRODUCTION

There are growing concerns about the increase in rates of commonly used childbirth interventions. When indicated, childbirth interventions are crucial for preventing maternal and perinatal morbidity and mortality, but their routine use in healthy women and children leads to avoidable maternal and neonatal harm. Establishing ideal rates of interventions can be challenging. This study aims to describe the range of variations in the use of commonly used childbirth interventions in high-income countries around the world, and in outcomes in nulliparous and multiparous women.

METHODS AND ANALYSIS

This multinational cross-sectional study will use data from births in 2013 with national population data or representative samples of the population of pregnant women in high-income countries. Data from women who gave birth to a single child from 37 weeks gestation onwards will be included and the results will be presented for nulliparous and multiparous women separately. Anonymised individual level data will be analysed. Primary outcomes are rates of commonly used childbirth interventions, including induction and/or augmentation of labour, intrapartum antibiotics, epidural and pharmacological pain relief, episiotomy in vaginal births, instrument-assisted birth (vacuum or forceps), caesarean section and use of oxytocin postpartum. Secondary outcomes are maternal and perinatal mortality, Apgar score below 7 at 5 min, postpartum haemorrhage and obstetric anal sphincter injury. Univariable and multivariable logistic regression analyses will be conducted to investigate variations among countries, adjusted for maternal age, body mass index, gestational weight gain, ethnic background, socioeconomic status and infant birth weight. The overall mean rates will be considered as a reference category, weighted for the size of the study population per country.

ETHICS AND DISSEMINATION

The Medical Ethics Review Committee of VU University Medical Center Amsterdam confirmed that an official approval of this study was not required. Results will be disseminated at national and international conferences and published in peer-reviewed journals.

Relationship between length and width of the purple line and foetal head descent in active phase of labour

Purple line is one of the non-invasive methods to assess the progress of labour. This longitudinal observational study was performed on 350 women during the active phase of labour. We assessed the relationship between length and width of the purple line and foetal head descent. Women were examined in the lateral position and researcher recorded the presence or absence of the line before each vaginal examination. Where present length and width of the line was measured using a disposable tape measure. The purple line appeared in 75.3% of 350 women during the active phase of labour. There was a positive correlation between length of the purple line and station of the foetal head (r = +0.29, p = .001). There was also a medium positive correlation between width of the purple line and the station of the foetal head (r = +0.71, p < -.001). There is a positive correlation between purple line and station of the foetal head. Where the purple line is present, measurement of it may reduce the number of vaginal examinations, especially when the single aim is to measure station of the foetal head. Further research is needed to confirm the current finding in other races. IMPACT STATEMENT Current knowledge on the subject: In the literature, purple line is one of the non-invasive methods to assess the progress of cervical dilatation and foetal head descent in labour. Failure of the foetal head is the second most common indication for performing surgical deliveries. Progression of labour has been evaluated by vaginal examination for the assessment of cervical dilatation and foetal head station. Vaginal examinations can be unpleasant, intrusive, embarrassing and so painful for women. Researchers suggested to explore whether the line is also present in women across other ethnic and racial groups and they also suggested further researches to examine the width of purple line. The contribution made by the results of this study: The results of this study add to the growing body of research on progression of labour that the purple line appeared in most of Iranian women during the active phase of labour. There was a positive correlation between length and width of the purple line and station of the foetal head. The implications are of these findings for clinical practice and further research: The results of this study can be used reduce the number of vaginal examinations, especially when the single aim is to measure station of the foetal head. Further research is needed to confirm the current finding in other races.

The meaning of labour pain: how the social environment and other contextual factors shape women's experiences

Background

The majority of women experience pain during labour and childbirth, however not all women experience it in the same way. In order to develop a more complete understanding of labour pain, this study aimed to examine women’s experiences within the perspective of modern pain science. A more complete understanding of this phenomenon can then guide the development of interventions to enhance women’s experiences and potentially reduce their need for pharmacological intervention.

Methods

A qualitative study was conducted using phenomenology as the theoretical framework. Data were collected from 21 nulliparous women, birthing at one of two large maternity services, through face-to-face interviews and written questionnaires. Data were analysed using an Interpretative Phenomenological Analysis approach.

Results

The data from this study suggest that a determining factor of a woman’s experience of pain during labour is the meaning she ascribes to it. When women interpret the pain as productive and purposeful, it is associated with positive cognitions and emotions, and they are more likely to feel they can cope. Alternatively, when women interpret the pain as threatening, it is associated with negative cognitions and emotions and they tend to feel they need help from external methods of pain control. The social environment seems particularly important in shaping a woman’s pain experience by influencing her interpretation of the context of the pain, and in doing so can change its meaning. The context and social environment are dynamic and can also change throughout labour.

Conclusion

A determining factor in a woman’s experience of pain during labour is its perceived meaning which can then influence how the woman responds to the pain. The meaning of the pain is shaped by the social environment and other contextual factors within which it is experienced. Focussed promotion of labour pain as a productive and purposeful pain and efforts to empower women to utilise their inner capacity to cope, as well as careful attention to women’s cognitions and the social environment around them may improve women’s experiences of labour pain and decrease their need for pain interventions.

Electronic supplementary material

The online version of this article (doi:10.1186/s12884-017-1343-3) contains supplementary material, which is available to authorized users.

Australian private midwives with hospital visiting rights in Queensland: Structures and processes impacting clinical outcomes

BACKGROUND

Reporting the outcomes for women and newborns accessing private midwives with visiting rights in Australia is important, especially since this data cannot currently be disaggregated from routinely collected perinatal data.

AIM

1) Evaluate the outcomes of women and newborns cared for by midwives with visiting access at one Queensland facility and 2) explore private midwives views about the structures and processes contributing to clinical outcomes.

METHODS

Mixed methods. An audit of the 'all risk' 529 women receiving private midwifery care. Data were compared with national core maternity variables using Chi square statistics. Telephone interviews were conducted with six private midwives and data analysed using thematic analysis.

FINDINGS

Compared to national data, women with a private midwife were significantly more likely to be having a first baby (49.5% vs 43.6% p=0.007), to commence labour spontaneously (84.7% vs 52.7%, p<0.001), experience a spontaneous vaginal birth (79% vs 54%, p<0.001) and not require pharmacological pain relief (52.9% vs 23.1%, p<0.001). The caesarean section rate was significantly lower than the national rate (13% vs 32.8%, p<0.001). In addition fewer babies required admission to the Newborn Care Unit (5.1% vs 16%, p<0.001). Midwives were proud of their achievements. Continuity of care was considered fundamental to achieving quality outcomes. Midwives valued the governance processes embedded around the model.

CONCLUSIONS

Private midwives with access to the public system is safe. Ensuring national data collection accurately captures outcomes relative to model of care in both the public and private sector should be prioritised.

Are freestanding midwifery units a safe alternative to obstetric units for low-risk, primiparous childbirth? An analysis of effect differences by parity in a matched cohort study

Background

Intrapartum complications and the use of obstetric interventions are more common in primiparous childbirth than in multiparous childbirth, leading to concern about out of hospital birth for primiparous women. The purpose of this study was to determine whether the effect of birthplace on perinatal and maternal morbidity and the use of obstetric interventions differed by parity among low-risk women intending to give birth in a freestanding midwifery unit or in an obstetric unit in the North Denmark Region.

Methods

The study is a secondary analysis of data from a matched cohort study including 839 low-risk women intending birth in a freestanding midwifery unit (primary participants) and 839 low-risk women intending birth in an obstetric unit (individually matched control group). Analysis was by intention-to-treat. Conditional logistic regression analysis was applied to compute odds ratios and effect ratios with 95% confidence intervals for matched pairs stratified by parity.

Results

On no outcome did the effect of birthplace differ significantly between primiparous and multiparous women. Compared with their counterparts intending birth in an obstetric unit, both primiparous and multiparous women intending birth in a freestanding midwifery unit were significantly more likely to have an uncomplicated, spontaneous birth with good outcomes for mother and infant and less likely to require caesarean section, instrumental delivery, augmented labour or epidural analgesia (although for caesarean section this trend did not attain statistical significance for multiparous women). Perinatal outcomes were comparable between the two birth settings irrespective of parity. Compared to multiparas, transfer rates were substantially higher for primiparas, but fell over time while rates for multiparas remained stable.

Conclusions

Freestanding midwifery units appear to confer significant advantages over obstetric units to both primiparous and multiparous mothers, while their infants are equally safe in both settings. Our findings thus support the provision of care in freestanding midwifery units as an alternative to care in obstetric units for all low-risk women regardless of parity. In view of the global rise in caesarean section rates, we consider it an important finding that freestanding midwifery units show potential for reducing first-birth caesarean.

Electronic supplementary material

The online version of this article (doi:10.1186/s12884-016-1208-1) contains supplementary material, which is available to authorized users.

Paradox of the institution: findings from a hospital labour ward ethnography

BACKGROUND

Interest in the influence of culture on birth practices is on the rise, and with it comes a sense of urgency to implement practices that aid the normalisation and humanisation of birth. This groundswell is occurring despite a broader cultural milieu of escalating technology-use and medicalisation of birth across the globe. Against this background, rates of epidural analgesia use by women in labour are increasing, despite the risk of side effects. Socio-cultural norms and beliefs are likely to influence pain relief choices but there is currently scant research on this topic.

METHODS

This study was undertaken to gain insight into the personal, social, cultural and institutional influences on women in deciding whether or not to use epidural analgesia in labour. The study had an ethnographic approach within a theoretical framework of Critical Medical Anthropology (CMA), Foucauldian and feminist theory. Given the nature of ethnographic research, it was assumed that using the subject of epidural analgesia to gain insight into Western birth practices could illuminate broader cultural ideals and that the epidural itself may not remain the focus of the research.

RESULTS

Findings from the study showed how institutional surveillance, symbolised by the Journey Board led to an institutional momentum that in its attempt to keep women safe actually introduced new areas of risk, a situation which we named the Paradox of the institution.

CONCLUSIONS

These findings, showing a risk/safety paradox at the centre of institutionalised birth, add a qualitative dimension to the growing number of quantitative studies asserting that acute medical settings can be detrimental to normal birth practices and outcomes.

Predictors of Unplanned Cesareans among Low-Risk Migrant Women from Low- and Middle-Income Countries Living in Montreal, Canada

BACKGROUND

Research has yielded little understanding of factors associated with high cesarean rates among migrant women (i.e., women born abroad). The objective of this study was to identify medical, migration, social, and health service predictors of unplanned cesareans among low-risk migrant women from low- and middle-income countries (LMICs).

METHODS

We used a case-control research design. The sampling frame included migrant women from LMICs living in Canada less than 8 years, who gave birth at one of three Montreal hospitals between March 2014 and January 2015. Data were collected from medical records and by interview-administration of the Migrant-Friendly Maternity Care Questionnaire. We performed multi-variable logistic regression for low-risk women (i.e., vertex, singleton, term pregnancies) who delivered vaginally (1,615 controls) and by unplanned cesarean indicated by failure to progress, fetal distress, or cephalopelvic disproportion (233 cases).

RESULTS

Predictors of unplanned cesarean included being from sub-Saharan Africa/Caribbean (OR 2.37 [95% CI 1.02-5.51]) and admission for delivery during early labor (OR 5.43 [95% CI 3.17-9.29]). Among women living in Canada less than 2 years predictors were having a humanitarian migration classification (OR 4.24 [95% CI 1.16-15.46]) and admission for delivery during early labor (OR 7.68 [95% CI 3.12-18.88]).

CONCLUSION

Migrant women from sub-Saharan Africa/Caribbean and recently arrived migrant women with a humanitarian classification are at greater risk for unplanned cesareans compared with other low-risk migrant women from LMICs after controlling for medical factors. Strategies to prevent cesareans should consider the circumstances of migrant women that may be contributing to the use of unplanned cesareans in this population.

Complementary therapies for labour and birth study: a randomised controlled trial of antenatal integrative medicine for pain management in labour

OBJECTIVE

To evaluate the effect of an antenatal integrative medicine education programme in addition to usual care for nulliparous women on intrapartum epidural use.

DESIGN

Open-label, assessor blind, randomised controlled trial.

SETTING

2 public hospitals in Sydney, Australia.

POPULATION

176 nulliparous women with low-risk pregnancies, attending hospital-based antenatal clinics.

METHODS AND INTERVENTION

The Complementary Therapies for Labour and Birth protocol, based on the She Births and acupressure for labour and birth courses, incorporated 6 evidence-based complementary medicine techniques: acupressure, visualisation and relaxation, breathing, massage, yoga techniques, and facilitated partner support. Randomisation occurred at 24-36 weeks' gestation, and participants attended a 2-day antenatal education programme plus standard care, or standard care alone.

MAIN OUTCOME MEASURES

Rate of analgesic epidural use. Secondary: onset of labour, augmentation, mode of birth, newborn outcomes.

RESULTS

There was a significant difference in epidural use between the 2 groups: study group (23.9%) standard care (68.7%; risk ratio (RR) 0.37 (95% CI 0.25 to 0.55), p≤0.001). The study group participants reported a reduced rate of augmentation (RR=0.54 (95% CI 0.38 to 0.77), p<0.0001); caesarean section (RR=0.52 (95% CI 0.31 to 0.87), p=0.017); length of second stage (mean difference=-0.32 (95% CI -0.64 to 0.002), p=0.05); any perineal trauma (0.88 (95% CI 0.78 to 0.98), p=0.02) and resuscitation of the newborn (RR=0.47 (95% CI 0.25 to 0.87), p≤0.015). There were no statistically significant differences found in spontaneous onset of labour, pethidine use, rate of postpartum haemorrhage, major perineal trauma (third and fourth degree tears/episiotomy), or admission to special care nursery/neonatal intensive care unit (p=0.25).

CONCLUSIONS

The Complementary Therapies for Labour and Birth study protocol significantly reduced epidural use and caesarean section. This study provides evidence for integrative medicine as an effective adjunct to antenatal education, and contributes to the body of best practice evidence.

TRIAL REGISTRATION NUMBER

ACTRN12611001126909.

Early versus Late Admission to Labor Affects Labor Progression and Risk of Cesarean Section in Nulliparous Women

Background

Rates of cesarean section increase worldwide, and the components of this increase are partially unknown. A strong role is prescribed to dystocia, and at the same time, the diagnosis of dystocia is highly subjective. Previous studies indicated that risk of cesarean is higher when women are admitted to the hospital early in the labor.

Methods

We examined data on 1,202 nulliparous women with singleton, vertex pregnancies and spontaneous labor onset. We selected three groups based on cervical dilatation at admission: early (0.5–1.5 cm, N = 178), intermediate (2.5–3.5 cm, N = 320), and late (4.5–5.5 cm, N = 175). The Kaplan–Meier estimator was used to analyze the risk of delivery by cesarean section at a given dilatation, and thin-plate spline regression with a binary outcome (R library gam) to assess the form of the associations between the cesarean section in either the first or second stage versus vaginal delivery and dilatation at admission.

Results

Women who were admitted to labor early had a higher risk of delivery by cesarean section (18 versus 4% in the late admission group), while the risk of instrumental delivery did not differ (24 versus 24%). Before 4 cm dilatation, the earlier a woman was admitted to labor, the higher was her risk of delivery by cesarean section. After 4 cm dilatation, however, the relationship disappeared. These patterns were true for both first and second stage cesarean deliveries. Oxytocin use was associated with a higher risk of cesarean section only in the middle group (2.5–3.5 cm dilatation at admission).

Conclusion

Early admission to labor was associated with a significantly higher risk of delivery by cesarean section during the first and second stages. Differential effects of oxytocin augmentation depending on dilation at admission may suggest that admission at the early stage of labor is an indicator rather than a risk factor itself, but admission at the intermediate stage (2.5–3.5 cm) becomes a risk factor itself. Further research is needed to study this hypothesis.

Caesarean section following induction of labour in uncomplicated first births- a population-based cross-sectional analysis of 42,950 births

Background

The impact of elective induction of labour at term on the increasing caesarean section (CS) rate is unclear. A Cochrane Systematic Review that concluded that elective induction was associated with a reduction in CS was based on trials that mostly reflect outdated obstetric care, or were flawed.

The findings of other studies vary widely in the magnitude and direction of the relationship between elective induction and CS. This inconsistency may be due to the heterogeneity in the methods used to induce or augment labour, such that the relationship with CS is not constant across methods.

Methods

Using validated, routinely-collected data on all births in Victoria in 2000–2005, all singleton, cephalic, first births following uncomplicated pregnancies at 37–40 completed weeks’ gestation (‘standard primiparae’) were identified (n = 42,950). As well as comparing induced with non-induced labour, method of birth was compared between those women experiencing spontaneous labour without augmentation, and women undergoing each method of augmentation or induction using adjusted multinomial logistic regression. Proportions, chi-square tests, adjusted Relative Risk Ratios (aRRR) and 95 % confidence intervals are presented.

Results

Ten percent of “standard primiparae” had labour induced for no apparent medical indication. Women whose labour was induced were significantly more likely than those who laboured spontaneously to have a CS (26.5 and 12.5 % respectively (OR 2.54, 95 % CI 2.4, 2.7, p < 0.001). After adjustment for maternal age, epidural analgesia, birthweight, gestation, and public/private admission status, each method of induction or augmentation remained associated with a significant increase in the risk of CS (adjusted ORs range 1.48 to 4.13, p-values all <0.0001). Perinatal death did not differ by onset of labour.

Conclusion

Induction of labour in medically uncomplicated nulliparous women at term carries a more than doubling of risk of emergency CS, compared with spontaneous labour, with no impact on perinatal mortality. All methods of induction and augmentation of labour were associated with an increase in the rate of CS. Women included in this study had no apparent medical indication for induction of labour or any complication of pregnancy, so the increase in CS was not due to identifiable underlying risk factors. These results suggest that, in the absence of direction from well-designed, contemporary RCTs, minimising unindicated inductions before 41 weeks’ gestation has the potential to reduce the rate of CS.

At pains to consent: A narrative inquiry into women's attempts of natural childbirth

BACKGROUND

With only 1.2% of all annual U.S. births registered as out-of-hospital births, national trends show an increase in medicalised hospital births. Caesarean sections have become the most common surgical procedure in the U.S.; Caesarean section rates have increased from 20.6% in 1997 to 31.5% in 2009. Furthermore, in 2009, 67% of hospital births utilised epidural analgesia and 26% used oxytocin augmentation. In response to the increased medicalisation of childbirth within the U.S., some women resist standardised medical procedures and instead choose to labour and birth without medical intervention.

AIM

The purpose of this study was to understand and contextualise the childbirth experiences of first-time mothers who planned to have a natural childbirth (without medical intervention) in the Midsouthern United States.

METHODS

Using narrative inquiry, we collected data from six participants through semi-structured life-story interviews.

FINDINGS

Utilising thematic analysis, four recurring themes emerged: (1) benefits and limitations of pre-labour self-education; (2) labouring women's experiences of relationality; (3) the importance of birth stories and expectations; and (4) the creation of false dilemmas and complexities of "informed choice."

DISCUSSION AND CONCLUSION

The women's stories suggest that U.S. medical establishments, the media, and society need to empower pregnant and birthing women by creating new narratives of labour and positive spaces of relationality. Furthermore, health care professionals need to critically examine their usage of the medical model of care while respecting women's choices and agency.

Quality of intra-partum care at a university hospital in Nepal: A prospective cross-sectional survey

OBJECTIVE

To investigate the quality of intra-partum care provided to women with an expected normal birth at a university hospital in Nepal.

METHODS

A prospective cross-sectional study was conducted during three weeks in November 2013. Nurses at the labor ward collected data from 292 consecutive births. Of these, 164 women of low risk were expected to have a normal birth and were included in the study; 107 (65%) were nulliparous. The self-administered questionnaire covered maternal characteristics, previous pregnancies and births, current pregnancy, labor and birth. Nine items assessed care management, five of which comprised the Bologna score with a total possible score of 5: presence of a companion, use of partograph, non-use of augmentation, non-supine position, and skin-to-skin contact.

RESULTS

The women were assisted by physicians (56%), nurses (42%) or students under supervision (2%). All were in good health after birth. Two had a postpartum hemorrhage exceeding 500 ml and 49% had an episiotomy. Apgar score in all neonates was ≥ 7 at five minutes. Mean Bologna score was 1.43 (variance 0-3).

CONCLUSIONS

The management of care in normal birth could be improved in the studied setting, and there is a need for more research to support such improvement.

Sense of coherence and childbearing choices: A cross sectional survey

BACKGROUND

as concern for increasing rates of caesarean section and interventions in childbirth in Western countries mounts, the utility of the risk approach (inherent in the biomedical model of maternity care) is called into question. The theory of salutogenesis offers an alternative as it focuses on the causes of health rather than the causes of illness. Sense of coherence (SOC), the cornerstone of salutogenic theory, is a predictive indicator of health. We hypothesised that there is a relationship between a woman's SOC and the childbirth choices she makes in pregnancy.

METHODS

the study aims to investigate the relationship between SOC and women's pregnancy and anticipated labour choices. A cross sectional survey was conducted where eligible women completed a questionnaire that provided information on SOC scores, Edinburgh Postnatal Depression (EPDS) scores, Support Behaviour Inventory (SBI) scores, pregnancy choices and demographics.

FINDINGS

1074 pregnant women completed the study. Compared to women with low SOC, women with high SOC were older, were less likely to identify pregnancy conditions, had lower EPDS scores and higher SBI scores. SOC was not associated with women's pregnancy choices.

CONCLUSION

this study relates SOC to physical and emotional health in pregnancy as women with high SOC were less likely to identify pregnancy conditions, had less depressive symptoms and perceived higher levels of support compared to women with low SOC. Interestingly, SOC was not associated with pregnancy choices known to increase normal birth rates. More research is required to explore the relationship between SOC and women's birthing outcomes.

The diagnostic accuracy of purple line in prediction of labor progress in omolbanin hospital, iran

BACKGROUND

Currently, vaginal examination is the gold standard for assessment of labor progress. The World Health Organization emphasizes that the number of vaginal examinations should be limited where it is necessary.

OBJECTIVES

Therefore, this study aimed to determine the diagnostic accuracy of purple line in the prediction of labor progress.

PATIENTS AND METHODS

In this cross-sectional study, 350 women with a single pregnancy in vertex presentation and gestational age of 38-42 weeks without any medical disorder, admitted to government hospitals of Mashhad, were selected using convenience sampling. Vaginal examination and observation of the line each hour in the active phase of labor were measured. Abnormal progress of labor was defined as cervical dilatation less than 1 centimeter/hour in the active phase for two consecutive hours and fetal head descend less than 1cm/h or duration of more than two hours for nulliparous and one hour for multiparous In the second stage of labor. Data was analyzed by SPSS version 16 using chi -square test.

RESULTS

The purple line appeared in 75.3% of women during the active phase of labor. Appearance of the purple line in the prediction of labor progress had 90.2% sensitivity, 45.3% specificity, 88.1% positive predictive value, 51.0% negative predictive value in the first stage of labor and had 87.6% sensitivity, 52.4% specificity, 96.5% positive predictive value, 22.0% negative predictive value in the second stage of labor and has 68.57% sensitivity, 42.66% specificity, 85.32% positive predictive value, and 43.85% negative predictive value for the total labor.

CONCLUSIONS

According to the appearance of the purple line in most of the cases and its high sensitivity and specificity, we can use it as a non-invasive complementary method for clinical assessment of labor progress.

Risk factors for episiotomy: a case-control study

Objective: obtaining information on the factors associated with episiotomy will be useful in sensitizing professionals to the need to minimize its incidence. Therefore, the objective of this study was to evaluate risk factors for episiotomy in pregnant women who had undergone vaginal delivery at a university maternity hospital in northeastern Brazil. Methods: a case-control study was conducted with pregnant women submitted to episiotomy (cases) and pregnant women not submitted to episiotomy (controls) between March 2009 and July 2010 at the Professor Fernando Figueira Integral Medicine Institute (IMIP) in Recife, Brazil, in a ratio of 1 case to 2 controls. The study variables consisted of: whether episiotomy was performed, demographic, obstetric and fetal characteristics (primiparity, analgesia, instrumental delivery, fetal distress, etc.), external factors (day and time of delivery, professional attending delivery) and factors directly related to delivery. Odds ratios (OR) and 95% confidence intervals (95%CI) were calculated. Multivariate analysis was performed to determine the adjusted risk of episiotomy. Results: a total of 522 women (173 cases and 349 controls) were included. It was found that deliveries with episiotomy were more likely to have been attended by staff physicians (OR = 1.88; 95%CI: 1.01 - 3.48), to have required forceps (OR = 12.31; 95%CI: 4.9 - 30.1) and to have occurred in primiparas (OR = 4.24; 95%CI: 2.61 - 6.89). The likelihood of a nurse having attended the delivery with episiotomy was significantly lower (OR = 0.29; 95%CI: 0.16 - 0.55). Conclusion: episiotomy was found to be strongly associated with deliveries attended by staff physicians, with primiparity, and with instrumental delivery, and was less common in deliveries attended by nurses.

Epidural analgesia in labour and risk of caesarean delivery

BACKGROUND

A Cochrane Systematic Review of randomised controlled trials of epidural analgesia compared with other or no analgesia in labour reported no overall increased risk of caesarean delivery. However, many trials were affected by substantial non-compliance, and there are concerns about the external validity of some trials for contemporary maternity populations. We aimed to explore the association between epidural analgesia in labour and caesarean delivery in clinical practice and compare with findings from randomised controlled trials.

METHODS

Population-based cohort of pregnant women (n = 210 708) without major obstetrical complications who delivered a singleton live infant in hospitals in New South Wales, Australia, 2007-10. Data were obtained from linked, validated population-based data collections. Propensity score matching was used to examine the association between epidural analgesia in labour and caesarean delivery.

RESULTS

Epidural analgesia in labour was used by a third (31.5%, n = 66 317) of the women, and 9.8% (n = 20 531) had a caesarean delivery. Epidural analgesia in labour was associated with increased risk of caesarean delivery {risk ratio [RR] 2.5, [95% confidence interval (CI) 2.5, 2.6]}. The association with epidural analgesia in labour was higher for caesarean delivery for failure to progress {RR 3.0, [95% CI 2.9, 3.0]} than for caesarean delivery for fetal distress {RR 1.9, [95% CI 1.8, 2.0]}.

CONCLUSIONS

Epidural analgesia in labour is associated with caesarean delivery in a large maternity population. Population-based studies contribute important data about obstetrical care, when research settings and participants may not represent the clinical settings or broader population in which obstetrical interventions in labour are applied.

Obstetric interventions in two groups of hospitals in Catalonia: a cross-sectional study

BACKGROUND

Childbirth assistance in highly technological settings and existing variability in the interventions performed are cause for concern. In recent years, numerous recommendations have been made concerning the importance of the physiological process during birth. In Spain and Catalonia, work has been carried out to implement evidence-based practices for childbirth and to reduce unnecessary interventions.To identify obstetric intervention rates among all births, determine whether there are differences in interventions among full-term single births taking place in different hospitals according to type of funding and volume of births attended to, and to ascertain whether there is an association between caesarean section or instrumental birth rates and type of funding, the volume of births attended to and women's age.

METHODS

Cross-sectional study, taking the hospital as the unit of analysis, obstetric interventions as dependent variables, and type of funding, volume of births attended to and maternal age as explanatory variables. The analysis was performed in three phases considering all births reported in the MBDS Catalonia 2011 (7,8570 births), full-term single births and births coded as normal.

RESULTS

The overall caesarean section rate in Catalonia is 27.55% (CI 27.23 to 27.86). There is a significant difference in caesarean section rates between public and private hospitals in all strata. Both public and private hospitals with a lower volume of births have higher obstetric intervention rates than other hospitals (49.43%, CI 48.04 to 50.81).

CONCLUSIONS

In hospitals in Catalonia, both the type of funding and volume of births attended to have a significant effect on the incidence of caesarean section, and type of funding is associated with the use of instruments during delivery.

Interrelations between four antepartum obstetric interventions and cesarean delivery in women at low risk: a systematic review and modeling of the cascade of interventions

OBJECTIVES

To critically appraise the literature on the relations between four intrapartum obstetric interventions-electronic fetal monitoring (EFM), epidural analgesia, labor induction, and labor acceleration; and two types of delivery-instrumental (forceps and vacuum) and cesarean section.

METHODS

This review included meta-analyses published between January 2000 and April 2012 including at least one randomized clinical trial published after 1995 and presenting results on low-risk pregnancies between 37 and 42 weeks of gestation, searched in the databases Medline, Cochrane Library, and EMBASE with no language restriction.

RESULTS

Of 306 documents identified, 8 fulfilled the inclusion criteria and presented results on women at low risk. EFM at admission (vs intermittent auscultation) was associated with cesarean delivery (odds ratio [OR] = 1.20, 95% confidence interval [CI] 1.00-1.44) and epidural analgesia (OR = 1.25, 95% CI 1.09-1.43). Epidural on request was associated with cesarean delivery (OR = 1.60, 95% CI 1.18-2.18), instrumental delivery (OR = 1.21, 95% CI 1.03-1.44), and oxytocin use (OR = 1.20, 95% CI 1.01-1.43) when compared with epidural on request plus nonpharmacological labor pain control methods such as one-to-one support, breathing techniques, and relaxation. Induction and acceleration of labor showed heterogeneous patterns of associations with cesarean delivery and instrumental delivery.

CONCLUSIONS

Complex patterns of associations between obstetric interventions and modes of delivery were illustrated in an empirical model. Intermittent auscultation and nonpharmacological labor pain control interventions, such as one-to-one support during labor, have the potential for substantially reducing cesarean deliveries.