Active management of labour: current knowledge and research issues

A pre-post implementation study of a care bundle to reduce perineal trauma in unassisted births conducted by midwives

PROBLEM

The perineal-bundle is a complex intervention widely implemented in Australian maternity care facilities.

BACKGROUND

Most bundle components have limited or conflicting evidence and the implementation required many midwives to change their usual practice for preventing perineal trauma.

AIM

To measure the effect of perineal bundle implementation on perineal injury for women having unassisted births with midwives.

METHODS

A retrospective pre-post implementation study design to determine rates of second degree, severe perineal trauma, and episiotomy. Women who had an unassisted, singleton, cephalic vaginal birth at term between two time periods: January 2011 - November 2017 and August 2018 - August 2020 with a midwife or midwifery student accoucheur. We conducted logistic regression on the primary outcomes to control for confounding variables.

FINDINGS

data from 20,155 births (pre-implementation) and 6273 (post-implementation) were analysed. After implementation, no significant difference in likelihood of severe perineal trauma was demonstrated (aOR 0.86, 95% CI 0.71-1.04, p = 0.124). Nulliparous women were more likely to receive an episiotomy (aOR 1.49 95% CI 1.31-1.70 p < 0.001) and multiparous women to suffer a second degree tear (aOR 1.18 95% CI 1.09-1.27 p < 0.001).

DISCUSSION

This study adds to the growing body of literature which suggests a number of bundle components are ineffective, and some potentially harmful. Why, and how, the bundle was introduced at scale without a research framework to test efficacy and safety is a key concern.

CONCLUSION

Suitably designed trials should be undertaken on all proposed individual or grouped perineal protection strategies prior to broad adoption.

Pregnancy and birth in the United States during the COVID-19 pandemic: The views of doulas

BACKGROUND

Much of the emerging research on the effects of SARS-CoV-2 disease (COVID-19) on pregnant people and their infants has been clinical, devoting little attention to how the pandemic has affected families navigating pregnancy and birth. This study examined the perspectives of doulas, or nonclinical labor support professionals, on how pregnancy and birth experiences and maternal health care delivery systems changed in the early weeks of the COVID-19 pandemic.

METHODS

Semi-structured interviews using open-ended questions were conducted over the phone with 15 birth doulas. Doulas were invited to participate because of their close relationships with pregnant and birthing people and the comprehensive support they offer. The interview transcripts were analyzed inductively.

RESULTS

Doulas' clients faced three predominant COVID-19-related pregnancy and birth challenges: (a) fear of exposure; (b) limited access to their expected support systems; and (c) uncertainties surrounding hospital restrictions on labor and birth. Doulas responded creatively to help their clients confront these challenges. Participants expressed various criticisms of how maternal health care systems handled the emerging crisis, argued that COVID-19 exposed preexisting weaknesses in US maternity care, and called for a coordinated care model involving doulas.

DISCUSSION

Doulas' close relationships with pregnant people enabled them to be an important source of support during the COVID-19 pandemic. Added to the larger body of work on the impacts of doula care, this study supports widespread calls for universally integrating doulas into maternity care systems as a targeted strategy to better support pregnant and birthing people in both crisis and noncrisis situations.

Countervailing powers in the labor room: The doula-doctor relationship in the United States

How do health professionals with fundamentally different philosophies toward health, and different status levels, manage power in their work relationships? This paper argues that taking a negotiated order interactionist approach, which contends that the social order shapes behavior but is continuously negotiated through social interactions, and synthesizing it with a countervailing powers perspective can yield insight into the power dynamics between health professionals. It focuses on the birth field, with attention to the relationship between two very different types of birth professionals: obstetricians and doulas. Unlike doctors, who maintain a dominant place in health care and subscribe to a biomedical perspective of birth, doulas hold a low-status position and take a holistic approach toward birth, which may cause conflict in the labor room. In-depth interviews with 43 birth doulas based in the US (May-July 2018) found that the doula-doctor relationship is a complex story of power, deference, and countervailing responses. Doulas reported that doctors are more receptive to them now than in the past but that this is an outcome of creative countervailing responses involving deferential maneuvers and direct challenges to physician authority. Doulas' strategic management of their relationships with health professionals has allowed them entry to the hospital, permitting them to represent a holistic voice in the labor room. A minority of doulas have begun to develop relationships with doctors that constitute a collaborative approach toward birth care, indicating that changes in standard care are possible. By revealing how a subordinate actor can challenge physicians and effect change in care, this study contributes to scholarship seeking to understand the nature of unequal relationships between health professionals in a context of biomedical dominance.

The Detour of an Obstetric Technology: Active Management of Labor Across Cultures

Active management of labor (AML) is an obstetric technology developed in Ireland in the 1970s to accelerate labor in nulliparous women. This technology achieved rapid success in Great Britain and in English-speaking countries outside America, which adopted it before many other states around the world. In this article, I explore AML's technical and social characteristics when it was first designed, and then examine its local inflections in a Jordanian and a Swiss maternity hospital to shed light on the ways its transnational circulation modifies its script. I argue that its application is shaped by local material constraints and specific sociocultural configurations, gender regimes, and hospital cultures. Finally, I make a comparative analysis of AML practices in these two settings and in the foundational textbook to disentangle the technical and sociocultural components modeling its local applications.

Progression of cervical dilatation in normal human labor is unpredictable

INTRODUCTION

The aim of this study was to analyze how the progression of cervical dilatation in active labor can be predicted by digital assessment in low-risk pregnant women, in spontaneous labor at term.

MATERIAL AND METHODS

This prospective observational study was performed on 328 women with singleton term gestations experiencing midwife-led labor according to local protocols, progressing to full dilatation and spontaneous delivery without any medical intervention. Mixed nonlinear models were adopted to (i) model individual cervical data into centile curves and (ii) calculate the time needed to gain 1 cm in cervical dilatation (TNG1cm ) modeled as a function of current dilatation. We correlated the first and the last TNG1cm on parturients with at least four cervical data points.

RESULTS

TNG1cm showed large variations, both before and after 6 cm. This variability of natural progression of cervical curves described by the 10th and 90th centiles exceeded the differences observed in published curves from cohorts homogeneous for parity, weight and ethnicity. There was no significant correlation between the first and the last TNG1cm . Neonatal base excess was not significantly different in women with TNG1cm <10th centile and >90th centile.

CONCLUSIONS

The rate of cervical dilatation, traced by parsimonious nonlinear mixed models, is largely unpredictable in the case of spontaneous naturally progressing labor, even when possible larger individual variability is excluded by prudent clinical rules. Future research in labor and delivery should be focused on the diagnosis of the causes that lie behind apparently erratic cervical changes.

Package of care for active management in labour for reducing caesarean section rates in low-risk women

BACKGROUND

Approximately 15% of women have caesarean sections (CS) and while the rate varies, the number is increasing in many countries. This is of concern because higher CS rates do not confer additional health gain but may adversely affect maternal health and have implications for future pregnancies. Active management of labour has been proposed as a means of reducing CS rates. This refers to a package of care including strict diagnosis of labour, routine amniotomy, oxytocin for slow progress and one-to-one support in labour.

OBJECTIVES

To determine whether active management of labour reduces CS rates in low-risk women and improves satisfaction.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (16 April 2013).

SELECTION CRITERIA

Randomised controlled trials comparing low-risk women receiving a predefined package of care (active management) with women receiving routine (variable) care. Trials where slow progress had been diagnosed before entry into the trial were excluded.

DATA COLLECTION AND ANALYSIS

At least two review authors extracted data. We assessed included studies for risk of bias.

MAIN RESULTS

We included seven trials, with a total of 5390 women. The quality of studies was mixed. The CS rate was slightly lower in the active management group compared with the group that received routine care, but this difference did not reach statistical significance (RR 0.88, 95% CI 0.77 to 1.01). However, in one study there was a large number of post-randomisation exclusions. On excluding this study, CS rates in the active management group were statistically significantly lower than in the routine care group (RR 0.77 95% CI 0.63 to 0.94). More women in the active management group had labours lasting less than 12 hours, but there was wide variation in length of labour within and between trials. There were no differences between groups in use of analgesia, rates of assisted vaginal deliveries or maternal or neonatal complications. Only one trial examined maternal satisfaction; the majority of women (over 75%) in both groups were very satisfied with care.

AUTHORS' CONCLUSIONS

Active management is associated with small reductions in the CS rate, but it is highly prescriptive and interventional. It is possible that some components of the active management package are more effective than others. Further work is required to determine the acceptability of active management to women in labour.

Oxytocin versus no treatment or delayed treatment for slow progress in the first stage of spontaneous labour

BACKGROUND

Slow progress in the first stage of spontaneous labour is associated with an increased caesarean section rate and fetal and maternal morbidity. Oxytocin has long been advocated as a treatment for slow progress in labour but it is unclear to what extent it improves the outcomes for that labour and whether it actually reduces the caesarean section rate or maternal and fetal morbidity. This review will address the use of oxytocin and whether it improves the outcomes for women who are progressing slowly in labour compared to situations where it is not used or where its administration is delayed.

OBJECTIVES

To determine if the use of oxytocin for the treatment of slow progress in the first stage of spontaneous labour is associated with a reduction in the incidence of caesarean sections, or maternal and fetal morbidity compared to situations where it is not used or where its administration is delayed.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (23 February 2013) and bibliographies of relevant papers.

SELECTION CRITERIA

Randomised controlled trials which compared oxytocin with either placebo, no treatment or delayed oxytocin in the active stage of spontaneous labour in low-risk women at term.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed studies for inclusion, assessed risk of bias and extracted data. We sought additional information from trial authors.

MAIN RESULTS

We included eight studies in the review involving a total of 1338 low-risk women in the first stage of spontaneous labour at term. Two comparisons were made; 1) the use of oxytocin versus placebo or no treatment (three trials); 2) the early use of oxytocin versus its delayed use (five trials). There were no significant differences in the rates of caesarean section or instrumental vaginal delivery in either comparison. Early use of oxytocin resulted in an increase in uterine hyperstimulation associated with fetal heart changes. However, the early use of oxytocin versus its delayed use resulted in no significant differences in a range of neonatal and maternal outcomes. Use of early oxytocin resulted in a statistically significant reduction in the mean duration in labour of approximately two hours but did not increase the normal delivery rate. There was significant heterogeneity for this analysis and we carried out a random-effects meta-analysis; however, all of the trials are strongly in the same direction so it is reasonable to conclude that this is the true effect. We also performed a random-effects meta-analysis for the four other analyses which showed substantial heterogeneity in the review.

AUTHORS' CONCLUSIONS

For women making slow progress in spontaneous labour, treatment with oxytocin as compared with no treatment or delayed oxytocin treatment did not result in any discernable difference in the number of caesarean sections performed. In addition there were no detectable adverse effects for mother or baby. The use of oxytocin was associated with a reduction in the time to delivery of approximately two hours which might be important to some women. However, if the primary goal of this treatment is to reduce caesarean section rates, then doctors and midwives may have to look for alternative options.

On the cutting edge: ethical responsiveness to cesarean rates

Cesarean delivery rates have been steadily increasing worldwide. In response, many countries have introduced target goals to reduce rates. But a focus on target goals fails to address practices embedded in standards of care that encourage, rather than discourage, cesarean sections. Obstetrical standards of care normalize use of technology, creating an imperative to use technology during labor and birth. A technological imperative is implicated in rising cesarean rates if physicians or patients fear refusing use of technology. Reproductive autonomy is at stake since a technological imperative undermines patients' ability to choose cesareans or refuse use of technology increasing the likelihood of cesareans. To address practices driven by a technological imperative I outline three physician obligations that are attached to respecting patient autonomy. These moral obligations show that a focus on respect for autonomy may prove not only an ideal ethical response but also an achievable practical response to lowering cesarean rates.

"Every case of asphyxia can be used as a learning example". Conclusions from an analysis of substandard obstetrical care

AIM

To propose suggestions for improvements in care based on conclusions from studies on low Apgar scores and substandard care during labor.

SETTING AND PATIENTS

Studies on infants with low Apgar scores in a general obstetric population 2004-2006 and claims for financial compensation on the behalf of infants, based on the suspicion that substandard care in conjunction with childbirth has caused severe asphyxia or neonatal death in Sweden 1990-2005.

RESULTS

The most common flaws were related to insufficient fetal surveillance, defective interpretation of cardiotocography (CTG) tracings, not acting in a timely fashion on abnormal CTG, and the incautious use of oxytocin. Besides, in half of the infants a suboptimal mode of delivery added further trauma to the already asphyxiated infant. Additionally, resuscitation was unsatisfactory in many of these infants. The most critical flaw was defective compliance with the guidelines concerning ventilation and the early paging of skilled personnel in cases of imminent asphyxia or known complications during labor. In many case reports, the documentation of the neonatal resuscitation was insufficient to enable accurate and reliable evaluation.

CONCLUSIONS

Examples of proposed improvements in care during labor are the introduction of a permanent educational atmosphere with aside time for daily educational rounds and discussion, cooperation around the use of standardized terminology in CTG interpretation, the cautious use of oxytocin, and the routine paging of a pediatrician before birth in cases of complicated delivery or imminent asphyxia. The proposed interventions need to be evaluated in clinical trials in the future.

Comparison of midwife-led and consultant-led care of healthy women at low risk of childbirth complications in the Republic of Ireland: a randomised trial

BACKGROUND

No midwifery-led units existed in Ireland before 2004. The aim of this study was to compare midwife-led (MLU) versus consultant-led (CLU) care for healthy, pregnant women without risk factors for labour and delivery.

METHODS

An unblinded, pragmatic randomised trial was designed, funded by the Health Service Executive (Dublin North-East). Following ethical approval, all women booking prior to 24 weeks of pregnancy at two maternity hospitals with 1,300-3,200 births annually in Ireland were assessed for trial eligibility.1,653 consenting women were centrally randomised on a 2:1 ratio to MLU or CLU care, (1101:552). 'Intention-to-treat' analysis was used to compare 9 key neonatal and maternal outcomes.

RESULTS

No statistically significant difference was found between MLU and CLU in the seven key outcomes: caesarean birth (163 [14.8%] vs 84 [15.2%]; relative risk (RR) 0.97 [95% CI 0.76 to 1.24]), induction (248 [22.5%] vs 138 [25.0%]; RR 0.90 [0.75 to 1.08]), episiotomy (126 [11.4%] vs 68 [12.3%]; RR 0.93 [0.70 to 1.23]), instrumental birth (139 [12.6%] vs 79 [14.3%]; RR 0.88 [0.68 to 1.14]), Apgar scores < 8 (10 [0.9%] vs 9 [1.6%]; RR 0.56 [0.23 to 1.36]), postpartum haemorrhage (144 [13.1%] vs 75 [13.6%]; RR 0.96 [0.74 to 1.25]); breastfeeding initiation (616 [55.9%] vs 317 [57.4%]; RR 0.97 [0.89 to 1.06]). MLU women were significantly less likely to have continuous electronic fetal monitoring (397 [36.1%] vs 313 [56.7%]; RR 0.64 [0.57 to 0.71]), or augmentation of labour (436 [39.6%] vs 314 [56.9%]; RR 0.50 [0.40 to 0.61]).

CONCLUSIONS

Midwife-led care, as practised in this study, is as safe as consultant-led care and is associated with less intervention during labour and delivery.

Oxytocin versus no treatment or delayed treatment for slow progress in the first stage of spontaneous labour

BACKGROUND

Slow progress in the first stage of spontaneous labour is associated with an increased caesarean section rate and fetal and maternal morbidity. Oxytocin has long been advocated as a treatment for slow progress in labour but it is unclear to what extent it improves the outcomes for that labour and whether it actually reduces the caesarean section rate or maternal and fetal morbidity. This review will address the use of oxytocin and whether it improves the outcomes for women who are progressing slowly in labour compared to situations where it is not used or where its administration is delayed.

OBJECTIVES

To determine if the use of oxytocin for the treatment of slow progress in the first stage of spontaneous labour is associated with a reduction in the incidence of caesarean sections, or maternal and fetal morbidity compared to situations where it is not used or where its administration is delayed.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 April 2011) and bibliographies of relevant papers.

SELECTION CRITERIA

Randomised controlled trials which compared oxytocin with either placebo, no treatment or delayed oxytocin in the active stage of spontaneous labour in low-risk women at term.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed studies for inclusion, assessed risk of bias and extracted data. We sought additional information from trial authors.

MAIN RESULTS

We included eight studies in the review involving a total of 1338 low-risk women in the first stage of spontaneous labour at term. Two comparisons were made; 1) the use of oxytocin versus placebo or no treatment (three trials); 2) the early use of oxytocin versus its delayed use (five trials). There were no significant differences in the rates of caesarean section or instrumental vaginal delivery in either comparison. Early use of oxytocin resulted in an increase in uterine hyperstimulation associated with fetal heart changes. However, the early use of oxytocin versus its delayed use resulted in no significant differences in a range of neonatal and maternal outcomes. Use of early oxytocin resulted in a statistically significant reduction in the mean duration in labour of approximately two hours but did not increase the normal delivery rate. There was significant heterogeneity for this analysis and we carried out a random-effects meta-analysis; however, all of the trials are strongly in the same direction so it is reasonable to conclude that this is the true effect. We also performed a random-effects meta-analysis for the four other analyses which showed substantial heterogeneity in the review.

AUTHORS' CONCLUSIONS

For women making slow progress in spontaneous labour, treatment with oxytocin as compared with no treatment or delayed oxytocin treatment did not result in any discernable difference in the number of caesarean sections performed. In addition there were no detectable adverse effects for mother or baby. The use of oxytocin was associated with a reduction in the time to delivery of approximately two hours which might be important to some women. However, if the primary goal of this treatment is to reduce caesarean section rates, then doctors and midwives may have to look for alternative options.

Women's preferences for aspects of labor management: results from a discrete choice experiment

BACKGROUND

The latent phase of labor can vary greatly in duration, and many women are uncertain about when to contact the maternity unit. The aim of this study was to elicit and value women's preferences for some aspects of labor management.

METHODS

A questionnaire was sent to 1,251 women who had recently given birth to their first child at one of 14 maternity units in Scotland. Discrete choice questions were used to measure women's preferences for five attributes of care: number of visits (assessments) before admission to the labor ward, time spent on the labor ward before delivery, mobility during labor, pain relief required, and mode of delivery. Responses were analyzed for the sample as a whole and for subgroups defined by recent experiences of labor.

RESULTS

A total of 730 (58.4%) questionnaires were returned and analyzed. Women expressed a preference for fewer visits before admission, shorter times on the labor ward before delivery, mobility during labor, normal vaginal deliveries, and moderate forms of pain relief (Entonox and opiates). Subgroup analysis suggests that women's preferences for pain relief are influenced by their recent labor experience. The elicited preference values provide a means for estimating the tradeoffs women are willing to make between attributes of labor management.

CONCLUSIONS

Women appear to dislike being turned away from the labor ward before admission for delivery. Extra visits before admission only appear to be a price worth paying if they result in reductions in the duration of time spent on the labor ward, reductions in the chance of being immobilized in hospital during labor, or a lower chance of requiring an instrumental or operative delivery.

A Review of Factors Associated With Dystocia and Cesarean Section in Nulliparous Women

The primary indication for cesarean section in nulliparous women continues to be clinical diagnoses that fall under the rubric of dystocia. These diagnoses account for approximately two-thirds of all cesareans experienced by otherwise healthy nulliparous women. Contemporary research evidence suggests that this clinical phenomenon is complex and multifactorial. This review explores factors associated with the phenomenon of dystocia in the context of a conceptual model that considers women's physical and psychological characteristics, fetal factors, intrapartum care and interventions, assessments and clinical decision-making of health care providers, the sociopolitical environment, and the social and physical environment of childbirth. Clinical recommendations include emphasis on the maintenance of normal weight and weight gain during pregnancy, delaying the admission of nulliparous women to the hospital until active labor is established, avoiding elective induction for nulliparous women, keeping women well-hydrated and well-fed during labor, providing high-quality supportive care during labor, staying the course with effective treatment when dystocia is encountered, and a renewed emphasis on the psychobehavioral preparation of nulliparous women for the realities of labor.

[Role of deambulation during labour: A prospective randomized study]

OBJECTIVE

To assess the effects of ambulation during the first stage of labor on the duration of labor and other maternal and infant outcomes.

PATIENTS AND METHODS

A prospective randomized trial conducted from 1st November 2008 to 31st March 2009 at the department of obstetrics and gynecology, CHU Farhat Hached, Sousse, Tunisia. Two hundred mothers with uncomplicated term pregnancies were randomly assigned to one of two groups: first group (100 parturients) authorized to ambulate until 6cm of cervical dilation and a second group (100 parturients) confined to bed in dorsal or lateral recumbence.

RESULTS

Upright position reduces significantly (for about 34%) the duration of the first stage of labor (P<0.0001), the pain intensity, the oxytocin consumption (P=0.001), the rate of delivery by cesarean section and of instrumental deliveries. Upright position leads also to a net improvement of the maternal outcome (7% side effects versus 13%) and the fetal outcome (net improvement of the Apgar's score at first and fifth minute, and reduction of a factor 5 of the rate of transfer to the neonatology clinical care unit.

CONCLUSION

Our study allowed to confirm the benefits of ambulation on labor progress as well as on the maternal comfort and the maternofetal outcome.

Assessment of the effect of psychosocial support during childbirth in Ibadan, south-west Nigeria: a randomised controlled trial

OBJECTIVE

To assess the effect of psychosocial support on labour outcomes.

METHODOLOGY

A randomised control trial conducted at the University College Hospital Ibadan, Nigeria, from November 2006 to 30 March 2007. Women with anticipated vaginal delivery were recruited and randomised at the antenatal clinic. The experimental group had companionship in addition to routine care throughout labour until two hours after delivery, while the controls had only routine care. The primary outcome measure was caesarean section rate. Others included duration of active phase, pain score, time of breast-feeding initiation and description of labour experience. Multivariable analyses were used to adjust for potential confounders. The level of statistical significance was set at 5%.

RESULTS

Of the 632 recruited, 585 were eventually studied: 293 and 292 were in experimental and control groups, respectively. Husbands constituted about two-thirds of the companions. Women in the control group were about five times more likely to deliver by caesarean section (95% confidence interval (CI) 1.98-12.05), had significantly longer duration of active phase (P < 0.001), higher pain scores (P = 0.011) and longer interval between delivery and initiation of breast-feeding (P < 0.001). However, those in experimental group had a more satisfying labour experience (odds ratio 3.3 95% CI 2.15-5.04).

CONCLUSION

Women with companionship had better labour outcomes compared to those without. It is desirable to adopt this practice in our health-care settings as an alternative strategy to provide comparable quality services to would-be mothers in labour.

Early versus delayed oxytocin augmentation in nulliparous women with prolonged labour--a randomised controlled trial

OBJECTIVE

To study the effects of early versus delayed oxytocin augmentation on the obstetrical and neonatal outcome in nulliparous women with spontaneous but prolonged labour.

DESIGN

Randomised controlled study.

SETTING

Two delivery units in Sweden.

POPULATION

Healthy nulliparous women with normal pregnancies, spontaneous onset of active labour, a cervical dilatation of 4-9 cm and no progress in cervical dilatation for 2 hours and for an additional hour if amniotomy was performed due to slow progress.

METHODS

Women (n = 630) were randomly allocated either to labour augmentation by oxytocin infusion (early oxytocin group) or to postponement of oxytocin augmentation for another 3 hours (expectant group).

MAIN OUTCOME MEASURE

Mode of delivery (spontaneous vaginal or instrumental vaginal delivery or caesarean section) and time from randomisation to delivery.

RESULTS

The caesarean section rate was 29 of 314 (9%) in the early oxytocin group and 34 of 316 (11%) in the expectant group (OR 0.8, 95% CI 0.5-1.4), and instrumental vaginal delivery 54 of 314 (17%) in the early oxytocin versus 38 of 316 (12%) in the expectant group (OR 1.5, 95% CI 0.97-2.4). Early initiation of oxytocin resulted in a mean decrease of 85 minutes in the randomisation to delivery interval.

CONCLUSION

Early administration of oxytocin did not change the rate of caesarean section or instrumental vaginal delivery but shortened labour duration significantly in women with a 2-hour arrest in cervical dilatation. No other clear benefits or harms were seen between early and delayed administration of oxytocin.

Package of care for active management in labour for reducing caesarean section rates in low-risk women

BACKGROUND

Approximately 15% of women have caesarean sections (CS) and while the rate varies, the number is increasing in many countries. This is of concern because higher CS rates do not confer additional health gain but may adversely affect maternal health and have implications for future pregnancies. Active management of labour has been proposed as a means of reducing CS rates. This refers to a package of care including strict diagnosis of labour, routine amniotomy, oxytocin for slow progress and one to one support in labour.

OBJECTIVES

To determine whether active management of labour reduces CS rates in low-risk women and improves satisfaction.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (February 2008), MEDLINE (1966 to December 2007), EMBASE (1980 to 2007), MIDIRS (1985 to 2007) and CINAHL (1982 to 2007).

SELECTION CRITERIA

Randomised controlled trials comparing low-risk women receiving a predefined package of care (active management) with women receiving routine (variable) care. Trials where slow progress had been diagnosed before entry into the trial were excluded.

DATA COLLECTION AND ANALYSIS

At least two review authors extracted data. We assessed included studies for risk of bias.

MAIN RESULTS

We included seven trials, with a total of 5390 women. The quality of studies was mixed. The CS rate was slightly lower in the active management group compared to the group that received routine care, but this difference did not reach statistical significance (RR 0.88, 95% CI 0.77 to 1.01). However, in one study there was a large number of post-randomisation exclusions. On excluding this study, CS rates in the active management group were statistically significantly lower than in the routine care group (RR 0.77 95% CI 0.63 to 0.94). More women in the active management group had labours lasting less than twelve hours, but there was wide variation in length of labour within and between trials. There were no differences between groups in use of analgesia, rates of assisted vaginal deliveries or maternal or neonatal complications. Only one trial examined maternal satisfaction; the majority of women (over 75%) in both groups were very satisfied with care.

AUTHORS' CONCLUSIONS

Active management is associated with small reductions in the CS rate, but it is highly prescriptive and interventional. It is possible that some components of the active management package are more effective than others. Further work is required to determine the acceptability of active management to women in labour.

O efeito da deambulação na duração da faze ativa do trabalho de parto

O trabalho teve como objetivo analisar a associação entre a deambulação e a duração da fase ativa do trabalho de parto. Metodologia: estudo analítico de intervenção do tipo quase experimental. Fizeram parte do estudo 80 parturientes primíparas, admitidas em trabalho de parto espontâneo, no início da fase ativa. Instrumentos de coleta de dados: podômetro para medir a distância percorrida em metros, Escala Visual Numérica (EVN) de dor, formulário para o registro de dados. Resultados: as participantes percorreram uma distância média de 1.624 metros, 63,09% da fase ativa do trabalho de parto e em um tempo médio de 5 horas. Verificou-se que a quantidade deambulada durante as três primeiras horas da fase ativa está associada a um encurtamento do trabalho de parto, sendo que a cada 100 metros percorridos ocorreu uma diminuição de 22 minutos na primeira hora, 10 minutos na segunda hora e 6 minutos na terceira hora.

The development and testing of an algorithm for diagnosis of active labour in primiparous women

OBJECTIVES

to describe the development and testing of an algorithm for diagnosis of active labour in primiparous women.

DESIGN

qualitative and quantitative methods were used. A literature review was first conducted to identify the key cues for inclusion in the algorithm. Focus groups of midwives were then conducted to assess content validity, finally a vignette study assessed the inter-rater reliability of the algorithm.

SETTING

midwives from two study sites were invited to participate. Data were collected during 2002 and 2003.

PARTICIPANTS

midwives from the first site took part in the focus groups (n=13), completed vignettes (n=19), or both. Midwives from the second site then completed vignettes (n=17).

FINDINGS

an algorithm, developed from the key informational cues reported in the literature, was validated in relation to content validity by the findings from the focus groups. Inter-rater reliability was tested using vignettes of admission case histories and was found to be moderate in the first test (K=0.45). However, after modifying the algorithm the kappa score was 0.86, indicating a high level of agreement.

KEY CONCLUSIONS

diagnosis of labour may be straightforward on paper but is frequently problematic in practice. This may be because the diagnosis of labour is made in a high pressured environment where conflicting pressures of workload, limited resources and emotional pressures add to the complexity of the judgement.

IMPLICATIONS FOR PRACTICE

we offer a valid and reliable decision-support tool as an aid for diagnosis of labour. The evaluation of the implementation of this tool is under way and will determine whether it is effective in reducing unnecessary admissions and improving clinical outcomes for women.

Effect of Different Partogram Action Lines on Birth Outcomes

OBJECTIVE

The World Health Organization recommends partograms with a 4-hour action line, denoting the timing of intervention for prolonged labor; others recommend earlier intervention. We assessed the effect of different action line positioning on birth outcomes.

METHODS

A randomized trial of primigravid women with uncomplicated pregnancies, in spontaneous labor at term, was conducted in the northwest of England. Women were assigned to have their labors recorded on a partogram with an action line 2 or 4 hours to the right of the alert line. If progress crossed the action line, diagnosis of prolonged labor was made and managed according to standard protocol. Primary outcomes were rate of cesarean delivery and maternal satisfaction.

RESULTS

A total of 3,000 women were randomly assigned to groups; 2,975 (99.2%) were available for analysis. Questionnaires were completed by 1,929 (65%) women. There were no differences in cesarean delivery rate (136/1,490 compared with 135/1,485; relative risk [RR] 1, 95% confidence interval [CI] 0.80-1.26) or women dissatisfied with labor experience (72/962 compared with 81/967; RR 0.89, 95% CI 0.66-1.21). More women assigned to the 2-hour arm had labors that crossed the action line (854/1,490 compared with 673/1,485; RR 1.27, 95% CI 1.18-1.37); received more intervention (772/1,490 compared with 624/1,485; RR 1.23, 95% CI 1.14-1.33); and, if admitted to the midwife-led unit, were transferred for consultant-led care (366/674 compared with 285/666; RR 1.26, 95% CI 1.13-1.42).

CONCLUSION

In this birth setting, for primigravid women selecting low intervention care, the 2-hour partogram increases the need for intervention without improving maternal or neonatal outcomes, compared with the 4-hour partogram, advocated by the World Health Organization.

CLINICAL TRIAL REGISTRATION

Current Controlled Trials, http://www.controlled-trials.com/isrctn/trial/|/0/78346801.html, ISRCTN78346801.

Making the diagnosis of labour: midwives' diagnostic judgement and management decisions

AIM

This paper reports a study examining midwives' perceptions of the way in which they diagnose labour.

BACKGROUND

Diagnosis of active labour is often problematic. A midwifery workforce planning tool identified that up to 30% of women admitted to United Kingdom labour wards subsequently turned out not to have been in labour. There is evidence that if a woman is admitted to a labour ward in early labour, she is more likely to have some form of medical intervention. However, despite the impact of misdiagnosis, there is little research on the process of decision-making by midwives in relation to diagnosis of labour.

METHODS

This was a qualitative study, employing focus group methods. Participants were a convenience sample of midwives working in a maternity unit in the North of England during 2002. They were asked to discuss their experience of admission of women in labour. Data were analysed using latent content analysis.

FINDINGS

Thirteen midwives participated in one of two groups. They described using information cues, which could be separated into two categories: those arising from the woman (Physical signs, Distress and coping, Woman's expectations and Social factors) and those from the institution (Midwifery care, Organizational factors and Justifying actions). Midwives' decision-making process could be divided into two stages. The diagnostic judgement was based on the physical signs of labour: the management decision would then be made by considering the diagnostic judgement as well as cues such as how the woman was coping, her expectations and those of her family and the requirements of the institution.

CONCLUSIONS

Midwives may experience more difficulty with the management decision than with the initial diagnosis. It may be that the number of inappropriate admissions to labour wards could be reduced by supporting midwives to negotiate the complex management hurdles, which accompany diagnosis of labour.

Qualidade da atenção ao parto em maternidades do Rio de Janeiro

OBJETIVO: Avaliar a qualidade da atenção durante o processo de trabalho de parto de acordo com normas da Organização Mundial de Saúde. MÉTODOS: Trata-se de estudo do tipo caso-controle, realizado em duas maternidades: pública e conveniada com o Sistema Único de Saúde, no Município do Rio de Janeiro. A amostra foi composta por 461 mulheres na maternidade pública (230 partos vaginais e 231 cesáreas) e por 448 mulheres na maternidade conveniada (224 partos vaginais e 224 cesáreas). De outubro de 1998 a março de 1999, foram realizadas entrevistas com puérperas e revisão de prontuários. Foi construído escore sumarizador da qualidade do atendimento. RESULTADOS: Observou-se baixa freqüência de algumas práticas que devem ser encorajadas, como presença de acompanhante (1% na maternidade conveniada, em ambos os tipos de parto), deambulação durante o trabalho de parto (9,6% das cesáreas na maternidade pública e 9,9% dos partos vaginais na conveniada) e aleitamento na sala de parto (6,9% das cesáreas na maternidade pública e 8,0% das cesáreas na conveniada). Práticas comprovadamente danosas e que devem ser eliminadas como uso de enema (38,4%), tricotomia, hidratação venosa de rotina (88,8%), uso rotineiro de ocitocina (64,4%), restrição ao leito durante o trabalho de parto (90,1%) e posição de litotomia (98,7%) para parto vaginal apresentaram alta freqüência. Os melhores resultados do escore sumarizador foram obtidos na maternidade pública. CONCLUSÕES: As duas maternidades apresentam freqüência elevada de intervenções durante a assistência ao parto. A maternidade pública, apesar de atender clientela com maior risco gestacional, apresenta perfil menos intervencionista que maternidade conveniada. Procedimentos realizados de maneira rotineira merecem ser discutidos à luz de evidências de seus benefícios.

Doulas as childbirth paraprofessionals: results from a national survey

Fourteen randomized trials have demonstrated that continuous caregiver support during childbirth can lead to shorter labors and decrease the need for intervention. In response, there has been a significant increase in the number and use of doulas as paraprofessionals who provide social and emotional support to women during labor/birth for a fee. We conducted a mailed survey of a nationally representative sample of certified and certification-in-process doulas in the United States (n = 626, 64.4% response rate) to gather some descriptive information on their sociodemographic backgrounds, practice characteristics, and beliefs/attitudes on a number of salient issues. The survey results suggest that, in 2003, doulas were primarily white, well-educated married women with children. The majority of certified doulas worked in solo practice and provided childbirth support services on average to nine clients per year. Very few doulas were earning more than 5,000 dollars per year from this work, and only 10% of certified doulas reported receiving third-party reimbursement for their services. Thus, while almost all doulas found their work emotionally satisfying, only one in three saw their work as financially rewarding. Doulas also reported challenges in getting support/respect from clinicians and in balancing doula work and family life. In addition, one in four doulas reported that they were preparing for a career in midwifery. Doulas can play an important and unique role in the childbirth process and reap many personal rewards engaging in this type of work. However, a number of financial, personal, and professional challenges present significant obstacles to the growth of doulas as childbirth paraprofessionals in the United States.

The continuing effectiveness of active management of first labor, despite a doubling in overall nulliparous cesarean delivery

OBJECTIVE

The purpose of this study was to determine the continuing effectiveness of active management of labor, a protocol that involves early detection and correction of dystocia with oxytocin in spontaneous cephalic nulliparous labor, by analysis of the contribution of this cohort to a doubled overall nulliparous cesarean delivery rate.

STUDY DESIGN

This was a retrospective analysis of annually collated institutional data on cesarean delivery and perinatal outcome.

RESULTS

From 1989 to 2000, 81,855 women were delivered at the National Maternity Hospital, of whom 34,201 women (42%) were nulliparous; the annual proportion of nulliparous women in spontaneous labor decreased progressively from 83% to 60%; the overall nulliparous cesarean rate increased from 8.1% to 16.6%. Cesarean birth rate among nulliparous women in spontaneous labor, although showing a significant upward trend between 1989 and 2000 (2.4%-4.8%; P = .001), was stable, averaging 5% for the last 8 years (P = .705); the peripartum death rate in this group fell significantly (P = .024). Comparing results for 1989 with results for 2000, nulliparous women in spontaneous labor accounted for 14% of the overall increase in cesarean deliveries (dystocia, 5%), compared with 51% for nulliparous women with induced labor. The perinatal mortality rate in term infants was unchanged.

CONCLUSION

Active management of spontaneous first labors remains an effective protocol for the promotion of vaginal delivery with low peripartum mortality rates; factors other than dystocia in spontaneous labor account for the progressive increase in the nulliparous cesarean delivery rate.

Obstructed labour

Obstructed labour is an important cause of maternal deaths in communities in which undernutrition in childhood is common resulting in small pelves in women, and in which there is no easy access to functioning health facilities with the capability of carrying out operative deliveries. Obstructed labour also causes significant maternal morbidity in the short term (notably infection) and long term (notably obstetric fistulas). Fetal death from asphyxia is also common. There are differences in the behaviour of the uterus during obstructed labour, depending on whether the woman has delivered previously. The pattern in primigravid women (typically diminishing contractility with risk of infection and fistula) may result from tissue acidosis, whereas in parous women, contractility may be maintained with the risk of uterine rupture. Ultimately, tackling the problem of obstructed labour will require universal adequate nutritional intake from childhood and the ability to access adequately equipped and staffed clinical facilities when problems arise in labour. These seem still rather distant aspirations. In the meantime, strategies should be implemented to encourage early recognition of prolonged labour and appropriate clinical responses. The sequelae of obstructed labour can be an enormous source of human misery and the prevention of obstetric fistulas, and skilled treatment if they do occur, are important priorities in regions where obstructed labour is still common.

Maternal satisfaction with active management of labor: a randomized controlled trial

BACKGROUND

Active management of labor reduces the length of labor and rate of prolonged labor, but its effect on satisfaction with care, within a randomized controlled trial, has not previously been reported. The study objectives were to establish if a policy of active management of labor affected any aspect of maternal satisfaction, and to determine the independent explanatory variables for satisfaction with labor care in a low-risk nulliparous obstetric population.

METHODS

Nulliparous women at National Women's Hospital in Auckland, New Zealand, in spontaneous labor at term with singleton pregnancy, cephalic presentation, and without fetal distress were randomized after the onset of labor to active management (n = 320) or routine care (n = 331). Active management included early amniotomy, two-hourly vaginal assessments, and early use of high dose oxytocin for slow progress in labor. Routine care was not prespecified. Maternal satisfaction with labor care was assessed by postal questionnaire at 6 weeks postpartum. Sensitivity analyses were performed, and logistic regression models were developed to determine independent explanatory variables for satisfaction.

RESULTS

Of the 651 women randomized in the trial, 482 (74%) returned the questionnaires. Satisfaction with labor care was high (77%) and did not significantly differ by treatment group. This finding was stable when sensitivity analysis was performed. The first logistic regression model found independent associations between satisfaction and adequate pain relief, one-to-one midwifery care, adequate information and explanations by staff, accurate expectation of length of labor, not having a postpartum hemorrhage, and fewer than three vaginal examinations during labor. The second model found fewer than three vaginal examinations and one-to-one midwifery care as significant explanatory variables for satisfaction with labor care.

CONCLUSIONS

Active management did not adversely affect women's satisfaction with labor and delivery care in this trial. Future studies should concentrate on measurement of potential predictors before and during labor.

Fever in labour and neonatal encephalopathy: a prospective cohort study

OBJECTIVE

To determine whether the reported association of maternal fever with neonatal encephalopathy is independent of other associated intrapartum risk factors.

DESIGN

Prospective cohort study.

SETTING

Dublin teaching hospital delivery ward.

POPULATION

4,915 low risk women in labour at 36-41 weeks of gestation.

METHODS

Using logistic regression with odds ratios and 95% confidence intervals, the incidence of neonatal encephalopathy and other neonatal outcomes of women who had an intrapartum fever >37.5 degrees C was compared with those who did not.

RESULTS

The cohort comprised 33% of all deliveries during the study period. Neonatal encephalopathy was diagnosed in 3.25/1,000 births. The incidence of intrapartum fever was 6.8%. Maternal fever was strongly associated with neonatal encephalopathy (crude OR 10.8, 95% CI 4.0-29.3). Univariate analysis showed maternal fever was associated with epidural analgesia, nulliparity, induction, longer labour, oxytocin administration, greater fetal birthweight and gestational age and instrumental vaginal delivery, but not with prolonged (>24hours) prelabour rupture of the membranes. The association of fever with neonatal encephalopathy persisted having adjusting for these covariates (adjusted OR 4.72, 95% CI 1.28-17.4).

CONCLUSIONS

The relationship between maternal intrapartum fever and neonatal encephalopathy is independent of other known intrapartum risk factors. This provides further evidence for the role of inflammatory processes in the aetiology of neonatal neurological morbidity.

Identifying labor support actions of intrapartum nurses

OBJECTIVE

To identify specific nursing actions that best characterize labor support from the nurse's perspective.

DESIGN

A descriptive survey design using a three-round Delphi technique was used to explore the views of intrapartum nurses in the United States related to labor support.

PARTICIPANTS

Five hundred AWHONN members who identified themselves as intrapartum nurses were invited to participate in the survey. One hundred eighty-six nurses agreed to participate. Participants who submitted usable surveys in each round: round one, n = 166; round two, n = 115; and round three, n = 117. Eighty-seven nurses participated in all three rounds of the survey.

RESULTS

The participants identified 55 specific nursing actions as supportive care. These interventions ranged from psychosocial support such as remaining with the mother if she is fearful to physical support measures such as position changes. The nurses clearly distinguished between supportive nursing care and the assessment and technical aspects of their job. The nurses also identified the overall goals of intrapartum nursing were to assure a safe outcome for the newborn (82.8% of participants) and for the mother (75% of participants).

CONCLUSIONS

The supportive actions identified by this panel of intrapartum nurses were similar to ones identified by mothers in other studies. Nurses made a clear distinction between supportive nursing care and assessment skills or technical tasks.

Keeping normal labor normal

Labor and delivery have been viewed by physicians as processes that can and must be managed by physicians for their pregnant patients. This article asserts that most births do not need to be interventionally managed and that a birth attendant's highest order skill is knowing when and how not to intervene. Further, the article looks at what birth interventions are likely to keep normal labor normal. The authors propose a new paradigm: The 10 "P's" of keeping normal labor normal.

Antenatal education for self-diagnosis of the onset of active labour at term

BACKGROUND

A specific program designed to teach women to recognise active labour may be beneficial through potentially decreasing the incidence of early admission to hospital, increasing women's confidence and decreasing their anxiety.

OBJECTIVES

The objective of this review was to assess the effects of teaching pregnant women specific criteria for self-diagnosis of active labour onset in term pregnancy.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group trials register and the Cochrane Controlled Trials Register.

SELECTION CRITERIA

Randomised trials comparing a structured antenatal education intervention for the identification of symptoms for self-diagnosis of active labour with usual care.

DATA COLLECTION AND ANALYSIS

Trial quality was assessed.

MAIN RESULTS

One study involving 245 women was included. Method of randomisation was unclear and 15% of the sample was lost to follow-up in this trial. A specific antenatal education program was associated with a reduction in the mean number of visits to the labour suite before the onset of labour (weighted mean difference -0. 29, 95% confidence interval -0.47 to -0.11). It is unclear whether this resulted in fewer women being sent home because they were not in labour.

REVIEWER'S CONCLUSIONS

There is not enough evidence to evaluate the use of a specific set of criteria for self-diagnosis of active labour.

Caregivers' use of strict criteria for diagnosing active labour in term pregnancy

BACKGROUND

Application of specific criteria for diagnosis of active labour as part of a labour assessment program aims to differentiate more accurately between latent and active phases of labour.

OBJECTIVES

The objective of this review was to assess the effects of the use of specific criteria by caregivers in diagnosing active labour in term pregnancy.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group trials register and the Cochrane Controlled Trials Register. Date of last search: January 1998.

SELECTION CRITERIA

Randomised trials comparing caregivers' application of strict diagnostic criteria for active labour with routine care.

DATA COLLECTION AND ANALYSIS

Trial quality was assessed.

MAIN RESULTS

One study of 209 women was included. The trial was of excellent quality. Women who experienced early labour assessment were less likely to receive intrapartum oxytocics than women who received standard care (odds ratio 0.45, 95% confidence interval 0.25 to 0.80) and analgesia (odds ratio 0.36, 95% confidence interval 0.16 to 0.78). They reported higher levels of control during labour and birth (weighted mean difference 16.00, 95% confidence interval 7.52 to 24.48). There were no differences detected for rate of caesarean section and other important measures of maternal and neonatal outcome.

REVIEWER'S CONCLUSIONS

Early labour assessment (which includes use of specific criteria for diagnosis of active labour) may have some positive outcomes for women at term pregnancy.

One-to-one nurse labor support of nulliparous women stimulated with oxytocin

OBJECTIVE

To compare the benefits of one-to-one nurse labor support with the benefits of usual intrapartum nursing care in women stimulated with oxytocin.

DESIGN

A secondary analysis of a randomized controlled trial.

SETTING

A 637-bed university hospital.

PARTICIPANTS

One hundred nulliparous women 37 weeks or more gestation, carrying singletons, in labor with vertex presentation, stimulated with oxytocin, less than 5 cm dilated at baseline, and not scheduled for cesarean delivery or induction nor having paid labor support present.

INTERVENTIONS

One-to-one care consisted of the presence of a nurse during labor and birth who provided emotional support, physical comfort, and instruction on relaxation and coping techniques. Usual care consisted of care for 2-3 laboring women with supportive activities varying by nurse.

MAIN OUTCOME MEASURE

Cesarean delivery.

RESULTS

A beneficial trend because of one-to-one nurse support, with a 56% reduction in risk of total cesarean deliveries [RR of experimental vs. control = 0.44 (95% confidence interval = 0.19 to 1.01)].

CONCLUSION

The beneficial trend in reducing cesarean deliveries attributed to one-to-one nursing in women stimulated with oxytocin suggests that continuous support by intrapartum nursing staff may benefit women stimulated with oxytocin during labor.

Managing labor using partograms with different action lines: a prospective study of women's views

BACKGROUND

The precise timing of medical intervention for women in prolonged labor is the subject of considerable debate. The partogram action line is a tool to assist practitioners in the correct diagnosis of prolonged labor. Despite its widespread use, the precise timing of the action line has not been rigorously studied, and women's views have rarely been sought. The aim of this study was to assess the effect on maternal satisfaction of managing labor using partograms with action lines drawn at 2, 3, or 4 hours to the right of the alert line.

METHODS

As part of a large pilot randomized controlled trial, women's views were explored using a specifically designed questionnaire that was completed by 615 primiparas 2 days after giving birth. The quantifiable data were analyzed by comparing means using ANOVA followed by the Scheffe test.

RESULTS

Women in the 2-hour arm were significantly more satisfied than those in the other two arms (p < 0.001), despite having the most obstetric intervention.

CONCLUSIONS

For women in prolonged labor, obstetric intervention can be an acceptable or even favorable option. Midwives and obstetricians need to provide labor management that takes into account the preferences of the women to whom they give care.

A comparison of intermittent and continuous support during labor: a meta-analysis

Our goal was to contrast the influence of intermittent and continuous support provided by doulas during labor and delivery on 5 childbirth outcomes. Data were aggregated across 11 clinical trials by means of meta-analytic techniques. Continuous support, when compared with no doula support, was significantly associated with shorter labors (weighted mean difference -1.64 hours, 95% confidence interval -2.3 to -.96) and decreased need for the use of any analgesia (odds ratio.64, 95% confidence interval.49 to.85), oxytocin (odds ratio.29, 95% confidence interval.20 to.40), forceps (odds ratio.43, 95% confidence interval.28 to.65), and cesarean sections (odds ratio.49, 95% confidence interval.37 to.65). Intermittent support was not significantly associated with any of the outcomes. Odds ratios differed between the 2 groups of studies for each outcome. Continuous support appears to have a greater beneficial impact on the 5 outcomes than intermittent support. Future clinical trials, however, will need to control for possible confounding influences. Implications for labor management are discussed.

Partogram action line study: a randomised trial

OBJECTIVE

To assess the effect of three different partograms on caesarean section and maternal satisfaction.

DESIGN

Prospective randomised clinical trial.

SETTING

Regional teaching hospital in North West of England.

PARTICIPANTS

Nine hundred and twenty-eight primigravid women with uncomplicated pregnancies who presented in spontaneous labour at term.

INTERVENTIONS

The women were randomised to have their progress of labour recorded on a partogram with an action line 2, 3 or 4 hours to the right of the alert line. If the progress reached the action line, a diagnosis of prolonged labour was made. Prolonged labour was managed according to the standard ward protocol.

MAIN OUTCOME MEASURES

Primary: Caesarean section rate and maternal satisfaction; secondary: need for augmentation, duration of labour, analgesia, cord blood gas analysis, postpartum haemorrhage, number of vaginal examinations, Apgar score and admission to special care baby unit.

RESULTS

Caesarean section rate was lowest when labour was managed using a partogram with a 4-hour action line. The difference between the 3- and 4-hour partograms was statistically significant (OR 1 8, 95% CI 1.1-3.2), but the difference between 2 and 4 hours was not (OR 1.4, 95% CI 0.8-2.4). The women in the 2-hour arm were more satisfied with their labour when compared to the women in the 3-hour (P < 00001) and 4-hour (P <00001) arm.

CONCLUSION

Our data suggest that women prefer active management of labour. It is possible that partograms which favour earlier intervention are associated with higher caesarean section rate. As the evidence on which to base the choice of partograms remains inconclusive further research is required.