Factors influencing uptake of the COVID-19 vaccination among pregnant women in Australia: A cross-sectional survey.

BACKGROUND: Mounting evidence shows the risk of COVID-19 on perinatal outcomes, as well as the safety and efficacy of vaccination during pregnancy. However, little is known about vaccine uptake among pregnant women in Australia, including women who are culturally and linguistically diverse (CALD), and about sources of information pregnant women use when making decisions about vaccines. We aimed to determine the proportion of pregnant women who had been vaccinated and to identify factors associated with vaccine uptake or decline during pregnancy. METHOD: A cross-sectional, anonymous, online survey was conducted from October 2021 to January 2022 in two metropolitan hospitals in New South Wales, Australia. RESULTS: Of 914 pregnant women, 406 (44%) did not speak English at home. Overall, 101 (11%) received a vaccine prepregnancy and 699 (76%) during pregnancy. In the nonvaccinated cohort, 87 (76%) declined vaccination during pregnancy. The uptake was more than 87% among women during pregnancy who received information from government or health professional websites but 37% when received from personal blogs. The main reasons for vaccine uptake were (1) hearing that COVID-19 affects pregnant women, (2) being concerned about the COVID-19 outbreak, and (3) receiving vaccine recommendation from a general practitioner. In a multivariable logistic regression, three main factors associated with declining or feeling unsure about vaccination were (1) concerns about the safety of the COVID-19 vaccine, (2) lack of trust and being unsatisfied with the information received about COVID-19 vaccination during pregnancy, and (3) doubting the importance of COVID-19 vaccine. CONCLUSION: Clinicians play a critical role in counseling women to alleviate vaccine fear, support vaccine acceptance, and direct women to use reliable information sources, such as government and professional healthcare organizations, for information about vaccines.

Who is responsible for postpartum contraception advice and provision? The perspective of hospital-based maternity clinicians in New South Wales, Australia.

Access to postpartum contraception is critical for the health of the mother and subsequent pregnancies. However, the differential roles and responsibilities of maternity care providers in contraception discussions and provision are often unclear. Our study, part of a larger study on midwifery provision of contraceptive implants, presents the perspectives of hospital-based maternity clinicians. Participants suggested that contraception discussions and provision are a shared responsibility of maternity care providers but identified inconsistencies and issues with current approaches. Access to contraception could be improved through more routine discussions antenatally and postnatally and greater collaboration between maternity care providers in hospital, community and primary care settings.

Group Clinical Supervision for midwives and burnout: a cluster randomized controlled trial.

BACKGROUND: There are major shortfalls in the midwifery workforce which has been exacerbated by the COVID 19 pandemic. Midwives have high levels of burnout and many, often early career midwives, are planning to leave the profession. There are reports of a poor workplace culture in maternity units, including bullying. Support is essential for the welfare of the workforce to be able to cope with the demands of their jobs. Supportive strategies, such as Clinical Supervision, a recognised approach in healthcare, enable reflection in a facilitated, structured way, and can enhance professional standards. The purpose of this research is to study burnout levels in midwives, those exiting their workplace and perceptions of workplace culture in relation to access to, and attendance of, monthly Clinical Supervision. METHODS: This study will be a cluster randomised controlled trial of maternity sites within Sydney and the surrounding districts. Twelve sites will be recruited and half will receive monthly Clinical Supervision for up to two years. Midwives from all sites will be requested to complete 6-monthly surveys comprising validated measurement tools: the Copenhagen Burnout Inventory (CBI), the Australian Midwifery Workplace Culture (AMWoC) tool and the Clinical Supervision Evaluation Questionnaire (CSEQ) (the latter for intervention sites only). Primary outcomes are the levels of burnout in midwives (using the CBI). Secondary outcomes will be the quality of the intervention (using the CSEQ), perceptions of workplace culture (using the AMWoC tool) and midwives' intention to stay in their role/profession, as well as sick leave rates and numbers of exiting staff. We will also determine the dose effect - ie the impact in relation to how many Clinical Supervision sessions the midwives have attended, as well as other supportive workplace strategies such as mentoring/coaching on outcomes. DISCUSSION: Through attending monthly Clinical Supervision we hypothesise that midwives will report less burnout and more positive perceptions of workplace culture than those in the control sites. The potential implications of which are a productive workforce giving high quality care with the flow-on effect of having physically and psychologically well women and their babies. TRIAL REGISTRATION: The ACTRN Registration number is ACTRN12621000545864p , dated 10/05/2021,.

Breastfeeding patterns and effects of minimal supplementation on breastfeeding exclusivity and duration in term infants: A prospective sub-study of a randomised controlled trial.

AIM: Despite international recommendations, less than one-third of Australian women exclusively breastfeed for 6 months. The aims of this study were to prospectively determine rates and factors associated with the type and duration of breastfeeding in the first year and examine the effect of minimal supplementation. METHODS: We conducted a sub-study of a randomised controlled trial in Sydney, Australia, which included 635 women with uncomplicated term births who intended to breastfeed. Data were collected daily for 56 days, and then at 2, 6 and 12 months post-partum. RESULTS: Breastfeeding outcomes were evaluated for 553 (87%), 480 (76%) and 392 (62%) women at 2, 6 and 12 months. Exclusive breastfeeding was 81% at 2 months and 8% at 6 months. Partial breastfeeding was 75% at 6 months and 54% at 12 months. Factors associated with breastfeeding cessation included caesarean birth, low milk supply, problems latching, increased time to breastfeed, use of formula >7 days in the first 2 months, return to work and early introduction of solids. Breast pain in the first week was associated with a 10% decrease in exclusive breastfeeding. Cracked nipples and no previous breastfeeding experience were associated with supplementation of ≤7 days but had no effect on long-term breastfeeding duration. CONCLUSIONS: Exclusive breastfeeding declined significantly between 2 and 6 months post-partum. Early intervention and education to prolong breastfeeding duration should include strategies to manage breast pain and nipple damage to minimise prolonged supplementation. Consistent guidelines about introduction of complementary foods, improved maternity leave and workplace incentives could be effective in prolonging breastfeeding.

A survey of obstetricians' attitudes to induction of labour at 39 weeks gestation with the intention of reducing caesarean section rates.

BACKGROUND: Induction of labour (IOL) and caesarean section (CS) rates continue to increase in Australia, New Zealand and globally. There is evidence that CS rates are decreased in the context of medically indicated and elective IOL; therefore, the emerging concept of using IOL as means of preventing CS warrants investigation. AIMS: To assess obstetricians' opinions of elective IOL at 39 weeks gestation, its feasibility, generalisability and utility as a means of preventing CS in Australia and New Zealand. MATERIALS AND METHODS: A de-identified cross-sectional survey was distributed electronically to all Fellows and trainees of The Royal Australian and New Zealand College of Obstetricians and Gynaecologists (RANZCOG). The survey was voluntary and distributed with the approval of the RANZCOG Continuing Education Committee. The survey addressed opinions relating to rates of and indications for IOL, the perceived validity of those indications and explored the acceptability of using a screening tool to predict women at increased risk of intra-partum CS and tailoring obstetric management to include the option of IOL at 39 weeks gestation. RESULTS: The overall response rate was 34% (492/1423) (including trainees) and the response rate was 53% (394/750) for currently practising obstetricians. The majority (90%) of responders agreed on medical and clinical indications for IOL. There was no consensus on the validity of IOL if a woman were at apparent high risk of intra-partum CS; however, 81% (360/443) of clinicians would be interested in a tool that could predict those women at risk. CONCLUSIONS: There is heterogeneity of obstetrician's beliefs on using IOL at 39 weeks as a mechanism to reduce the CS rate.

Cesarean delivery: Trend in indications over three decades within a major city hospital network.

INTRODUCTION: The cesarean delivery rate has been increasing globally in recent decades. The reasons for this are complex and subject to ongoing debate. Investigation of the indications for cesarean delivery and how these have changed over an extended period of time could provide insight into the reasons for changing obstetric practice. Our objective was to explore contributing factors to the increasing rate of cesarean delivery by examining the incidence of and indications for cesarean delivery over the past three decades at our institutions. MATERIAL AND METHODS: We conducted a retrospective observational study of all cesarean deliveries, from 24 weeks' gestational age onwards, within an inner-city hospital network in Sydney, Australia, between August 1989 and December 2016. The primary outcome measures were the rates of and indications for emergency and planned cesarean delivery. We also examined our data within the Robson 10-Group Classification system. RESULTS: There were 147 722 births over the study period, with 37 309 cesarean deliveries for an overall rate of 25.3%. The rate of cesarean delivery increased from 18.7% in 1989-1994 (8.7% emergency, 10% planned) to 30.4% in 2010-2016 (11.4% emergency, 19% planned). Emergency cesarean delivery for slow progress increased from 3.4% to 5.5% of all births (a relative increase of 62%) and other emergency cesareans mainly performed for suspected intrapartum fetal compromise increased from 5.2% to 5.6% (a relative increase of 8%). Previous uterine surgery (predominantly cesarean section) was the largest contributor to the increase in planned procedures from 3.8% to 9.0% of all births, and 29% of all cesarean deliveries. Primary cesarean delivery for planned antenatal fetal indications, previous pregnancy problems, multiple gestation and maternal choice all increased substantially in combined rate from 0.7% to 4.9%. Cesarean rates in Robson groups 6, 7 and 8 (term breech and multiple gestations) increased most over time. CONCLUSIONS: The increased rate of cesarean delivery is mainly attributable to a greater number of procedures performed for slow progress in labor, breech presentation or repeat cesarean section.

The association between induction of labour at 38 to 39 weeks pregnancy and indication for caesarean delivery: An observational study.

BACKGROUND: Induction of labour is associated with a reduction in caesarean delivery, but the mechanism of action and which groups of women might benefit remain unknown. AIMS: To assess the association between induction of labour at 38-39 weeks pregnancy, and caesarean delivery: (i) overall; (ii) for slow progress in labour; and (iii) for suspected fetal compromise. MATERIAL AND METHODS: Retrospective observational study in two Sydney hospitals from 2009 to 2016, among nulliparous women with induction of labour at 38 or 39 completed weeks pregnancy and a singleton, cephalic presenting fetus. The comparator was all planned vaginal births beyond 39(+1/7) weeks, whether or not labour was induced. Binary and multinomial multiple logistic regressions adjusting for multiple confounders were performed. RESULTS: There were 2388 and 15 259 women in the study and comparison groups respectively. Induction of labour was associated with caesarean delivery overall only for women <25 years of age (adjusted odds ratio 1.63; 95% CI 1.17-2.27) and was not associated with caesarean delivery for slow progress. Induction of labour was positively associated with increased caesarean delivery for suspected fetal compromise among young women (<30 years), with the association weakening as maternal age increased. The association between induction of labour and caesarean delivery was different for slow progress compared with suspected compromise (P = 0.005). CONCLUSIONS: Induction of labour has different effects on the likelihood of caesarean delivery for slow progress and for suspected fetal compromise. Women <30 years of age are at higher risk of caesarean delivery for suspected fetal compromise, potentially due to uterine hyperstimulation.

Outcomes of induction of labour in nulliparous women at 38 to 39 weeks pregnancy by clinical indication: An observational study.

BACKGROUND: Knowledge of the outcomes of induction of labour for different indications is sparse. AIMS: To describe the mode of birth and other outcomes for nulliparous women induced at 38-39 weeks gestational age by indication for induction of labour. MATERIAL AND METHODS: This was a retrospective observational study in a tertiary referral hospital, and a metropolitan teaching hospital in Sydney. The study population was nulliparous women with induction of labour at 38 or 39 completed weeks of pregnancy and a singleton, cephalic presenting baby planning a vaginal birth, from 2009 to 2016. The indication for induction of labour was classified into 12 groups. Mode of birth and other maternal and perinatal outcomes were described in each group, for women who spontaneously laboured at 38 or 39 weeks, and for women who gave birth from 40 completed weeks onward. The main outcome measure was mode of birth. RESULTS: There were 3330 women with induction of labour at 38 or 39 weeks gestation. Rates of vaginal birth varied widely, ranging from 54% when the indication for induction was suspected large fetus, to 82% when the indication was suspected fetal compromise, and was 74% overall. Indications for caesarean delivery also varied by indication for induction. Among women giving birth ≥40 weeks gestational age, 75% had a vaginal birth. CONCLUSIONS: In nulliparous women, rates of vaginal birth following induction of labour at 38 or 39 weeks gestation vary widely according to the indication for induction. These data are useful for antenatal counselling.

Is sonographically measured cervical length at 37 weeks of gestation associated with intrapartum cesarean section? A prospective cohort study.

INTRODUCTION: Cesarean section rates continue to increase globally. Prediction of intrapartum cesarean section could lead to preventive measures. Our aim was to assess the association between sonographically measured cervical length at 37 weeks of gestation and cesarean section among women planning a vaginal birth. The population was women with a low-risk pregnancy or with gestational diabetes. MATERIAL AND METHODS: This was a prospective cohort study conducted in a tertiary referral hospital in Sydney, Australia. In all, 212 women with a low-risk pregnancy or with gestational diabetes were recruited including 158 nulliparous and 54 parous women. Maternal demographic, clinical and ultrasound characteristics were collected at 37 weeks of gestation. Semi-Bayesian logistic regression and Markov chain Monte Carlo simulation were used to assess the relation between cervical length and cesarean section in labor. RESULTS: Rates of cesarean section were 5% (2/55) for cervical length ≤20 mm, 17% (17/101) for cervical length 20-32 mm, and 27% (13/56) for cervical length >32 mm. These rates were 4, 22 and 33%, respectively, in nulliparous women. In the semi-Bayesian analysis, the odds ratio for cesarean section was 6.2 (95% confidence interval 2.2-43) for cervical length 20-32 mm and 10 (95% confidence interval 4.8-74) for cervical length >32 mm compared with the lowest quartile of cervical length, after adjusting for maternal age, parity, height, prepregnancy body mass index, gestational diabetes, induction of labor, neonatal sex and birthweight centile. CONCLUSIONS: Cervical length at 37 weeks of gestation is associated with intrapartum cesarean section.

Is ultrasound measured fetal biometry predictive of intrapartum caesarean section for failure to progress?

BACKGROUND: There are global concerns regarding excessive caesarean rates, which could be reduced by identification of risk factors leading to preventative measures such as induction of labour. AIMS: This study aims to describe the association between antenatal ultrasound and emergency caesarean section for: (i) failure to progress; (ii) other indications; and (iii) any indication. MATERIALS AND METHODS: Women who had an ultrasound in pregnancy between 36(+0/7) to 38(+6/7) weeks at Royal Prince Alfred Hospital from January 2005 to June 2009 were included. Ultrasound parameters were linked to clinical parameters from the maternity database. Missing clinical data were imputed and multiple logistic regression performed. RESULTS: Fetal biometry data were available for 2006 pregnancies. After adjusting for maternal age, height, body mass index, parity, previous caesarean section and diabetes, caesarean section for failure to progress was associated with estimated fetal weight (odds ratio (OR) 2.24 (95% CI: 1.76-2.84) per 500 g increase); or biparietal diameter (OR 1.51 (1.16-1.97) per 5 mm increase) and abdominal circumference (OR for the 4th quartile (>75th centile) compared with the 10-25th centile group was 2.09 (1.13-3.85)).* There were also non-linear associations between components of fetal biometry and caesarean section for fetal distress and for any indication. CONCLUSIONS: Components of fetal biometry in the third trimester are associated with intrapartum caesarean section for failure to progress. These parameters could be incorporated into models to predict emergency caesarean section which could lead to implementation of preventative strategies. *[Corrections added on 29 January 2018, after first online publication, '(OR for the 4th quartile (>7th centile)' has been changed to '(OR for the 4th quartile (>75th centile)'.].

Is neonatal head circumference related to caesarean section for failure to progress?

BACKGROUND: There is global concern about rising caesarean section rates. Identification of risk factors could lead to preventative measures. AIMS: To describe the association between neonatal head circumference and (i) caesarean section for failure to progress, (ii) intrapartum caesarean section overall. MATERIALS AND METHODS: This was a retrospective cohort study of 11 687 singleton live births with cephalic presentation, attempted vaginal birth and at least 37 completed weeks gestation from January 2005 to June 2009. Neonatal head circumference was grouped into quartiles and multiple logistic regressions performed. RESULTS: The rates of caesarean section for failure to progress were 4.1, 6.4, 8.8 and 14.3% in successive head circumference quartiles. Rates of intrapartum caesarean section overall were 8.7, 12.1, 15.8 and 21.5%. The odds ratios for caesarean section for failure to progress were: 1.00, 1.33 (95% CI 1.02- 1.73), 1.54 (1.18-2.02) and 1.93 (1.44-2.57) for successive head circumference quartiles after adjusting for multiple demographic and clinical factors. The adjusted odds ratios for intrapartum caesarean section for any indication were: 1.00, 1.52 (95% CI 1.24-1.87), 1.99 (1.62-2.46) and 2.38 (1.89-3.00), respectively. CONCLUSIONS: There is a strong positive relationship between head circumference quartile and both caesarean section for failure to progress and caesarean for any indication. If this finding is confirmed using ultrasound measurements, there is potential for head circumference to be incorporated into predictive models for intrapartum caesarean section with a view to offering interventions to reduce the risk of caesarean section.

Prophylactic manual rotation for fetal malposition to reduce operative delivery.

BACKGROUND: Manual rotation is commonly performed to increase the chances of normal vaginal delivery and is perceived to be safe. Manual rotation has the potential to prevent operative delivery and caesarean section, and reduce obstetric and neonatal complications. OBJECTIVES: To assess the effect of prophylactic manual rotation for women with malposition in labour on mode of delivery, and maternal and neonatal outcomes. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 October 2014), the Australian and New Zealand Clinical Trials Registry (ANZCTR), ClinicalTrials.gov, Current Controlled Trials and the WHO International Clinical Trials Registry Platform (ICTRP) (all searched 23 February 2014), previous reviews and, references of retrieved studies. SELECTION CRITERIA: Randomised, quasi-randomised or cluster-randomised clinical trials comparing prophylactic manual rotation in labour for fetal malposition versus expectant management, augmentation of labour or operative delivery. We defined prophylactic manual rotation as rotation performed without immediate assisted delivery. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed study eligibility and quality, and extracted data. MAIN RESULTS: We included only one small pilot study (involving 30 women). The study, which we considered to be at low risk of bias, was conducted in a tertiary referral hospital in Australia, and involved women with cephalic, singleton pregnancies. The primary outcome was operative delivery (instrumental delivery or caesarean section).In the manual rotation group, 13/15 women went on to have an instrumental delivery or caesarean section, whereas in the control group, 12/15 women had an operative delivery. The estimated risk ratio was 1.08 (95% confidence interval 0.79 to 1.49). There were no maternal or fetal mortalities in either groupThere were no clear differences for any of the secondary maternal or neonatal outcomes reported (e.g. perineal trauma, analgesia use duration of labour).In terms of adverse events, there were no reported cases of umbilical cord prolapse or cervical laceration and a single case of a non-reassuring or pathological cardiotocograph during the procedure. AUTHORS' CONCLUSIONS: Currently, there is insufficient evidence to determine the efficacy of prophylactic manual rotation early in the second stage of labour for prevention of operative delivery. One additional study is ongoing. Further appropriately designed trials are required to determine the efficacy of manual rotation.

Is there an association between sonographically determined occipito-transverse position in the second stage of labor and operative delivery?

OBJECTIVE: To evaluate if ultrasound-determined occipito-transverse position early in the second stage of labor is associated with operative delivery. DESIGN: Retrospective review of two prospective cohort studies. SETTING: An Australian tertiary referral hospital. POPULATION: Women with term, cephalic singleton pregnancies. METHODS: Retrospective analysis of data from two prospective studies. Logistic regression was undertaken to assess the independent contribution of the occipito-transverse position to operative delivery. MAIN OUTCOME MEASURE: Operative delivery (cesarean section, forceps or vacuum extraction). RESULTS: Among 422 women included, the occipito-transverse position was present in 80, occipito-anterior in 303 and the occipito-posterior in 39. Compared with occipito-anterior, the adjusted odds ratio for operative delivery was 2.1 (95% confidence interval 1.2-3.8, p = 0.02) for the occipito-transverse position, and 7.4 (95% confidence interval 3.2-17) for the occipito-posterior position. Factors that independently predicted operative delivery were nulliparity, abnormal second stage cardiotocography, maternal place of birth and epidural analgesia. The length of second stage of labor was longer for the occipito-transverse group than for the occipito-anterior group (median 2 h 7 min vs. 1 h 36 min, p = 0.003). CONCLUSION: The occipito-transverse position early in the second stage of labor was associated with an increased operative delivery rate.

Management of occiput posterior position in the second stage of labor: a survey of midwifery practice in Australia.

BACKGROUND: The management of the occiput posterior (OP) position has been controversial for many years. Manual rotation can be performed by midwives and could reduce cesarean sections and instrumental births. We aimed to determine current midwifery views, knowledge, and practice of manual rotation. METHOD: A de-identified, self-reported questionnaire was e-mailed to all Australian College of Midwives full members (n = 3,997). RESULTS: Of 3,182 surveyed, 57 percent (1,817) responded, of whom 51 percent (920) were currently practicing midwifery. Seventy-seven percent of midwives thought that manual rotation at full dilatation was a valid intervention. Sixty-four percent stated the procedure was acceptable before instrumental delivery, but 30 percent were unsure. Most practicing midwives (93%) had heard of manual rotation, but only 18 percent had performed one in the last year. Midwives would support the routine performance of manual rotation for OP position if it reduced operative births from 68 to 50 percent and would support manual rotation for occiput transverse (OT) position if it reduced operative births from 39 to 25 percent. CONCLUSION: This study indicates that manual rotation is considered acceptable by most midwives in Australia, yet is only performed by a minority. Midwives would be willing to perform prophylactic manual rotation if it was known to facilitate normal vaginal births suggesting a scope to introduce this procedure into widespread clinical practice.

Persistent occiput posterior: OUTcomes following digital rotation: a pilot randomised controlled trial.

AIM: To determine the feasibility of a multicentre randomised controlled trial (RCT) to investigate whether digital rotation of the fetal head from occiput posterior (OP) position in the second stage of labour reduces the risk of operative delivery (defined as caesarean section (CS) or instrumental delivery). METHODS: We conducted the study between December 2010 and December 2011 in a tertiary referral hospital in Australia. A transabdominal ultrasound was performed early in the second stage of labour on women with cephalic, singleton pregnancies to determine the fetal position. Those women with a fetus in the OP position were randomised to either a digital rotation or a sham procedure. In all other ways, participants received their usual intrapartum care. Data regarding demographics, mode of delivery, labour, post natal period and neonatal outcomes were collected. RESULTS: One thousand and four women were consented, 834 achieved full dilatation, and 30 were randomised. An additional portable ultrasound scan and a blinded 'sham' digital rotation were acceptable to women and staff. Operative delivery rates were 13/15 in the digital rotation (four CS and nine instrumental) and 12/15 in the sham (three CS and nine instrumental) groups, respectively. CONCLUSION: A large double-blinded multicentre RCT would be feasible and acceptable to women and staff. Strategies to improve recruitment such as consenting women with an effective epidural in active labour should be considered. This would be the first RCT to answer a clinically important question which could significantly affect the operative delivery rate in Australia and internationally.

Do Birth Outcomes Predicted by Occipital Position Inform Definitions of Occiput Posterior and Occiput Transverse?

Fetal head position significantly influences birth outcomes, with higher rates of complications observed when the fetal head is in the Occiput Posterior (OP) position compared to Occiput Transverse (OT) or Occiput Anterior (OA) positions. There is no consensus in the current literature on the precise rotational point at which the fetal occiput shifts from posterior to transverse, reducing clarity in both scientific and clinical communication. Different studies employ varying definitions of these positions, which affects management decisions. This study aims to determine if a definable threshold exists between the directly posterior and directly transverse positions that correlates with different birth outcomes, thereby proposing a consistent and clinically useful definition for OP versus OT. We analyzed ultrasound data from 570 patients at full dilatation from five previous studies, correlating the angle of the fetal occiput (noted on a clock-face) with birth outcomes. Adverse outcomes were defined as cesarean delivery, instrumental vaginal delivery, significant postpartum hemorrhage (500 ml or more), obstetric anal sphincter injury, five-minute Apgar scores <7, arterial cord pH <7, base excess less than -12, or neonatal intensive care unit admission. The analysis was conducted using SAS version 9.4. The study found a continuous relationship between the fetal occipital angle and adverse birth outcomes without a distinct threshold separating OP from OT positions. No clear inflection point was demonstrated in pregnancy outcomes between OT and OP. The relationship between the angle of occiput position and pregnancy outcomes was continuous: the closer the fetal head was to directly OP, the higher the likelihood of adverse outcomes. Given the lack of a clear cut-off and to improve consistency in future research, we recommend dividing the occiput position into four quadrants of 90 degrees each. This classification could standardize reporting and potentially improve clinical decision-making regarding fetal position during labor.

When should women be recruited to intrapartum research projects? A retrospective review.

OBJECTIVE: To review and describe the impact of varied recruitment processes in two intrapartum studies. DESIGN: Retrospective review of one prospective cohort study and one pilot randomized controlled trial. SETTING: Australian tertiary referral hospital. POPULATION: Women with term, cephalic singleton pregnancies. METHODS: Recruitment processes in one observational and one interventional study examining the management of occipitoposterior position in labor were reviewed. Data concerning recruitment and serial attrition for these studies were collected. The value of allowing consent in early labor in addition to consent in the antenatal period was assessed. MAIN OUTCOME MEASURE: Relative proportions of women participating compared with the numbers approached and recruited. RESULTS: One in 48 women approached about the observational study agreed to participate and then had a fetus in occipitoposterior position. One in 33 women in the intervention study were eventually randomized. Women approached in early labor were more likely to agree to participate (77% vs. 58%; p < 0.0001), more likely to have an ultrasound scan during labor (40% vs. 15%; p < 0.0001) and more likely to be randomized to intervention (4% vs. 1.5%; p = 0.02). CONCLUSION: Intrapartum research is associated with low rates of recruitment and these rates may be improved by asking women to provide informed consent during labor rather than the antenatal period. It is important to consider ways to facilitate randomized controlled trials involving women in labor to advance evidence-based care in this environment. This should include prospective research that seeks to define the best approach to patient recruitment.

Does occiput posterior position in the second stage of labour increase the operative delivery rate?

OBJECTIVES: To assess the impact of occipito-posterior position in the second stage of labour on operative delivery. METHODS: Double-blinded prospective cohort study of ultrasound determined occiput-posterior position during the second stage of labour compared with occiput-anterior position. The primary outcome was operative (caesarean section, forceps or vacuum) delivery. RESULTS: A total of 68% (13/19) women in the occiput-posterior group, and 27% (39/141) in the occiput-anterior group had an operative delivery (unadjusted: P < 0.001). Caesarean section was performed in 37% and 5%, respectively (P < 0.001). The occiput-posterior group had a longer second stage (mean 2 h 59 minutes vs 1 h 54 minutes; P = 0.001) and larger infants (mean 3723 g vs 3480 g, P = 0.024). In the logistic regression, occiput-posterior position, nulliparity, abnormal second stage cardiotocograph and epidural analgesia were independent predictors for operative delivery. CONCLUSIONS: Occiput-posterior position early in the second stage of labour is strongly associated with operative delivery. There is potential to explore interventions such as manual rotation.