Oxytocics in developing countries

Oral misoprostol alone, compared with oral misoprostol followed by oxytocin, in women induced for hypertension of pregnancy: A multicentre randomised trial

OBJECTIVE

To assess whether, in those requiring continuing uterine stimulation after cervical ripening with oral misoprostol and membrane rupture, augmentation with low-dose oral misoprostol is superior to intravenous oxytocin.

DESIGN

Open-label, superiority randomised trial.

SETTING

Government hospitals in India.

POPULATION

Women who were induced for hypertensive disease in pregnancy and had undergone cervical ripening with oral misoprostol, but required continuing stimulation after artificial membrane rupture.

METHODS

Participants received misoprostol (25 micrograms, orally, 2-hourly) or titrated oxytocin through an infusion pump. All women had one-to-one care; fetal monitoring was conducted using a mixture of intermittent and continuous electronic fetal monitoring.

MAIN OUTCOME MEASURES

Caesarean birth.

RESULTS

A total of 520 women were randomised and the baseline characteristics were comparable between the groups. The caesarean section rate was not reduced with the use of misoprostol (misoprostol, 84/260, 32.3%, vs oxytocin, 71/260, 27.3%; aOR 1.23; 95% CI 0.81-1.85; P = 0.33). The interval from randomisation to birth was somewhat longer with misoprostol (225 min, 207-244 min, vs 194 min, 179-210 min; aOR 1.137; 95% CI 1.023-1.264; P = 0.017). There were no cases of hyperstimulation in either arm. The rates of fetal heart rate abnormalities and maternal side effects were similar. Fewer babies in the misoprostol arm were admitted to the special care unit (10 vs 21 in the oxytocin group; aOR 0.463; 95% CI 0.203-1.058; P = 0.068) and there were no neonatal deaths in the misoprostol group, compared with three neonatal deaths in the oxytocin arm. Women's acceptability ratings were high in both study groups.

CONCLUSIONS

Following cervical preparation with oral misoprostol and membrane rupture, the use of continuing oral misoprostol for augmentation did not significantly reduce caesarean rates, compared with the use of oxytocin. There were no hyperstimulation or significant adverse events in either arm of the trial.

Inconsistent definitions of prolonged labor in international literature: a scoping review

Objective

Prolonged labor is the commonest indication for intrapartum cesarean section, but definitions are inconsistent and some common definitions were recently found to overestimate the speed of physiological labor. The objective of this review is to establish an overview of synonyms and definitions used in the literature for prolonged labor, separated into first and second stages, and establish types of definitions used.

Data sources

A systematic search was conducted in PubMed, Embase, Web of Science, Cochrane Library, Emcare, and Academic Search Premier.

Study eligibility criteria

All articles in English that (1) attempted to define prolonged labor, (2) included a definition of prolonged labor, or (3) included any synonym for prolonged labor, were included.

Methods

Data on study design, year of publication, country or region of origin, synonyms used, definition of prolonged first and/or second stage, and origin of provided definition (if not primarily established by the study) were collected into a database.

Results

In total, 3402 abstracts and 536 full-text papers were screened, and 232 papers were included. Our search established 53 synonyms for prolonged labor. Forty-three studies defined prolonged labor and 189 studies adopted a definition of prolonged labor. Definitions for prolonged first stage of labor were categorized into: time-based (n=14), progress-based (n=12), clinician-based (n=5), or outcome-based (n=4). For the 33 studies defining prolonged second stage, the majority of definitions (n=25) were time-based, either based on total duration or duration of no descent of the presenting part.

Conclusions

Despite efforts to arrive at uniform labor curves, there is still little uniformity in definitions of prolonged labor. Consensus on which definition to use is called for, in order to safely and respectfully allow physiological labor progress, ensure timely management, and assess and compare incidence of prolonged labor between settings.

Antenatal Uterotonics as a Risk Factor for Intrapartum Stillbirth and First-day Death in Haryana, India: A Nested Case-control Study

BACKGROUND

Use of uterotonics like oxytocin to induce or augment labor has been shown to reduce placental perfusion and oxygen supply to the fetus, and studies indicate that it may increase the risk of stillbirth and neonatal asphyxia. Antenatal use of uterotonics, even without the required fetal monitoring and prompt access to cesarean section, is widespread, yet no study has adequately estimated the risk of intrapartum stillbirth and early neonatal deaths ascribed to such use. We conducted a case-control study to estimate this risk.

METHODS

We conducted a population-based case-control study nested in a cluster-randomized trial. From 2008 to 2010, we followed pregnant women in rural Haryana, India, monthly until delivery. We visited all live-born infants on day 29 to ascertain whether they were alive. We conducted verbal autopsies for stillbirths and neonatal deaths. Cases (n = 2,076) were the intrapartum stillbirths and day-1 deaths (early deaths), and controls (n = 532) were live-born babies who died between day 8 and 28 (late deaths).

RESULTS

Antenatal administration of uterotonics preceded 74% of early and 62% of late deaths, translating to an adjusted odds ratio (95% confidence interval [CI]) for early deaths of 1.7 (95% CI = 1.4, 2.1), and a population attributable risk of 31% (95% CI = 22%, 38%).

CONCLUSIONS

Antenatal administration of uterotonics was associated with a substantially increased risk of intrapartum stillbirth and day-1 death. See video abstract: http://links.lww.com/EDE/B707.

Augmentation of labour

Augmentation of labour aims at improving the efficiency of uterine contractions in order to reduce maternal and foetal adverse outcomes associated with prolonged labour. This review covers the current best practice for different methods of augmentation of labour, namely, artificial rupture of membranes and oxytocin infusion as a prevention of, or therapy for, prolonged labour. The review highlights essential practice points and identifies knowledge gaps for future research in this important area of clinical obstetric practice.

New Evidence on Carbetocin: Another Arrow in Our Quiver

Carbetocin is more heat stable than oxytocin with at least equivalent efficacy for preventing postpartum hemorrhage. It will certainly be helpful if the supplier can make it available in low-income country settings at a price comparable to oxytocin. But even so, programs will still need oxytocin and other uterotonic medications.

Risk factors for stillbirths: how much can a responsive health system prevent?

Background

The stillbirth rate is an indicator of quality of care during pregnancy and delivery. Good quality care is supported by a functional heath system. The objective of this study was to explore the risk factors for stillbirths, particularly those related to a health system.

Methods

This case-control study was conducted in two districts of Bihar, India. Information on cases (stillbirths) were obtained from facilities as reported by Health Management Information System; controls were consecutive live births from the same population as cases. Data were collected from 400 cases and 800 controls. The risk factors were compared using a hierarchical approach and expressed as odds ratio, attributable fractions and population attributable fractions.

Results

Of all the factors studied, 22 risk factors were independently associated with stillbirths. Health system-related factors were: administration of two or more doses of oxytocics to augment labour before reaching the facilities (OR 1.6; 95% CI 1.2–2.1), any complications during labour (OR 2.3;1.7–3.1), >30 min to reach a facility from home (OR 1.4;1.05–1.8), >10 min to attend to the pregnant woman after reaching the facility (OR 2.8;1.7–4.5). In the final regression model, modifiable health system-related risk factors included: >10 min taken to attend to women after they reach the facilities (AOR 3.6; 95% CI 2.5–5.1), untreated hypertension during pregnancy (AOR 2.9; 95% CI 1.5–5.6) and presence of any complication during labour, warranting treatment (AOR 1.7; 95% CI 1.2–2.4). Among mothers who reported complications during labour, time taken to reach the facility was significantly different between stillbirths and live births (2nd delay; 33.5 min v/s 25 min; p < 0.001). Attributable fraction for any complication during labour was 0.56 (95% CI 0.42–0.67), >30 min to reach the facility 0.48 (95% CI 0.31–0.60) and institution of management 10 min after reaching the facility 0.68 (95% CI 0.58–0.75). Reaching a facility within 30 min, initiation of management within 10 min of reaching the facility and timely management of complications during labour could have prevented 17%, 37% and 20% of stillbirths respectively.

Conclusion

A pro-active health system with accessible, timely and quality obstetric services can prevent a considerable proportion of stillbirths in low and middle income countries.

Electronic supplementary material

The online version of this article (10.1186/s12884-018-1660-1) contains supplementary material, which is available to authorized users.

Uterine rupture in Mekelle, northern Ethiopia, between 2009 and 2013

OBJECTIVE

To review cases of uterine rupture at a center in northern Ethiopia.

METHODS

In a retrospective chart review, data were assessed for cases of symptomatic uterine rupture treated at Ayder Referral Hospital in Mekelle between January 1, 2009, and December 31, 2013.

RESULTS

In the 5-year study period, there were 5185 deliveries and 47 cases of uterine rupture, giving a rate of one case per 110 deliveries. All patients underwent laparotomy for suspected uterine rupture. Mean parity was 3.6 (range 0-8). The most common predisposing factors were cephalopelvic disproportion (35 [74%] patients), previous cesarean delivery (5 [11%)], and fetal malpresentation (4 [9%]). Hysterectomy was undertaken for 35 (74%) patients; the other 12 (26%) were treated conservatively by simple repair of the rupture. There were 44 (95%) stillbirths and 1 (2%) maternal death.

CONCLUSION

Uterine rupture remains an important clinical problem in northern Ethiopia. Changes in the cultural preference for home delivery, better transport and referral systems, and improved obstetric training and hospital management of laboring women are needed.

Injections during labor and intrapartum-related hypoxic injury and mortality in rural southern Nepal

OBJECTIVE

To estimate the association between unmonitored use of injections during labor and intrapartum-related neonatal mortality and morbidity among home births.

METHODS

Recently delivered women in Sarlahi, Nepal, reported whether they had received injections during labor. Data on breathing and crying status at birth, time to first breath, respiratory rate, sucking ability, and lethargy were gathered. Neonatal respiratory depression (NRD) and encephalopathy (NE) were compared by injection receipt status using multivariate regression models.

RESULTS

Injections during labor were frequently reported (7108 of 22352 [31.8%]) and were predominantly given by unqualified village "doctors." Multivariate analysis (excluding facility births and complicated deliveries) revealed associations with intrapartum-related NRD (relative risk [RR] 2.52; 95% CI, 2.29-2.78) and NE (RR 3.48; 95% CI, 2.46-4.93). The risks of neonatal death associated with intrapartum-related NRD (RR 3.78; 95% CI, 2.53-5.66) or NE (RR 4.47; 95% CI, 2.78-7.19) were also elevated.

CONCLUSION

Injection during labor was widespread at the community level. This practice was associated with poor outcomes and possibly related to the inappropriate use of uterotonics by unqualified providers. Interventions are required to increase the safety of childbirth in the community and in peripheral health facilities. Parent trial registered at clinicaltrials.gov (NCT00 109616).

Overcoming phase 1 delays: the critical component of obstetric fistula prevention programs in resource-poor countries

BACKGROUND

An obstetric fistula is a traumatic childbirth injury that occurs when labor is obstructed and delivery is delayed. Prolonged obstructed labor leads to the destruction of the tissues that normally separate the bladder from the vagina and creates a passageway (fistula) through which urine leaks continuously. Women with a fistula become social outcasts. Universal high-quality maternity care has eliminated the obstetric fistula in wealthy countries, but millions of women in resource-poor nations still experience prolonged labor and tens of thousands of new fistula sufferers are added to the millions of pre-existing cases each year. This article discusses fistula prevention in developing countries, focusing on the factors which delay treatment of prolonged labor.

DISCUSSION

Obstetric fistulas can be prevented through contraception, avoiding obstructed labor, or improving outcomes for women who develop obstructed labor. Contraception is of little use to women who are already pregnant and there is no reliable screening test to predict obstruction in advance of labor. Improving the outcome of obstructed labor depends on prompt diagnosis and timely intervention (usually by cesarean section). Because obstetric fistulas are caused by tissue compression, the time interval from obstruction to delivery is critical. This time interval is often extended by delays in deciding to seek care, delays in arriving at a hospital, and delays in accessing treatment after arrival. Communities can reasonably demand that governments and healthcare institutions improve the second (transportation) and third (treatment) phases of delay. Initial delays in seeking hospital care are caused by failure to recognize that labor is prolonged, confusion concerning what should be done (often the result of competing therapeutic pathways), lack of women's agency, unfamiliarity with and fear of hospitals and the treatments they offer (especially surgery), and economic constraints on access to care.

SUMMARY

Women in resource-poor countries will use institutional obstetric care when the services provided are valued more than the competing choices offered by a pluralistic medical system. The key to obstetric fistula prevention is competent obstetrical care delivered respectfully, promptly, and at affordable cost. The utilization of these services is driven largely by trust.

The effect of late pregnancy consumption of date fruit on labour and delivery

We set out to investigate the effect of date fruit (Phoenix dactylifera) consumption on labour parameters and delivery outcomes. Between 1 February 2007 and 31 January 2008 at Jordan University of Science and Technology, a prospective study was carried out on 69 women who consumed six date fruits per day for 4 weeks prior to their estimated date of delivery, compared with 45 women who consumed none. There was no significant difference in gestational age, age and parity between the two groups. The women who consumed date fruit had significantly higher mean cervical dilatation upon admission compared with the non-date fruit consumers (3.52 cm vs 2.02 cm, p < 0.0005), and a significantly higher proportion of intact membranes (83% vs 60%, p = 0.007). Spontaneous labour occurred in 96% of those who consumed dates, compared with 79% women in the non-date fruit consumers (p = 0.024). Use of prostin/oxytocin was significantly lower in women who consumed dates (28%), compared with the non-date fruit consumers (47%) (p = 0.036). The mean latent phase of the first stage of labour was shorter in women who consumed date fruit compared with the non-date fruit consumers (510 min vs 906 min, p = 0.044). It is concluded that the consumption of date fruit in the last 4 weeks before labour significantly reduced the need for induction and augmentation of labour, and produced a more favourable, but non-significant, delivery outcome. The results warrant a randomised controlled trial.

Obstetric care in low-resource settings: what, who, and how to overcome challenges to scale up?

BACKGROUND

Each year, approximately 2 million babies die because of complications of childbirth, primarily in settings where effective care at birth, particularly prompt cesarean delivery, is unavailable.

OBJECTIVE

We reviewed the content, impact, risk-benefit, and feasibility of interventions for obstetric complications with high population attributable risk of intrapartum-related hypoxic injury, as well as human resource, skill development, and technological innovations to improve obstetric care quality and availability.

RESULTS

Despite ecological associations of obstetric care with improved perinatal outcomes, there is limited evidence that intrapartum interventions reduce intrapartum-related neonatal mortality or morbidity. No interventions had high-quality evidence of impact on intrapartum-related outcomes in low-resource settings. While data from high-resource settings support planned cesarean for breech presentation and post-term induction, these interventions may be unavailable or less safe in low-resource settings and require risk-benefit assessment. Promising interventions include use of the partograph, symphysiotomy, amnioinfusion, therapeutic maneuvers for shoulder dystocia, improved management of intra-amniotic infections, and continuous labor support. Obstetric drills, checklists, and innovative low-cost devices could improve care quality. Task-shifting to alternative cadres may increase coverage of care.

CONCLUSIONS

While intrapartum care aims to avert intrapartum-related hypoxic injury, rigorous evidence is lacking, especially in the settings where most deaths occur. Effective care at birth could save hundreds of thousands of lives a year, with investment in health infrastructure, personnel, and research--both for innovation and to improve implementation.

Evoking the guardian angel: childbirth care in a Palestinian hospital

The purpose of this study was to assess the quality of maternity care in a large, public, Palestinian referral hospital, as a first step in developing interventions to improve safety and quality of maternity care. Provider interviews, observation and interviews with women were used to understand the barriers to improved care and prepare providers to be receptive to change. Some of the inappropriate practices identified were forbidding female labour companions, routine use of oxytocin to accelerate labour, restriction of mobility during labour and frequent vaginal examinations. Magnesium sulfate was not used for pre-eclampsia or eclampsia, and post-partum haemorrhage was a frequent occurrence. Severe understaffing of midwives, insufficient supervision and lack of skills led to inadequate care. Use of evidence-based practices which promote normal labour is critical in settings where resources are scarce and women have large families. The report of this assessment and dissemination meetings with providers, hospital managers, policymakers and donors were a reality check for all involved, and an intervention plan to improve quality of care was approved. In spite of the ongoing climate of crisis and whatever else may be going on, women continue to give birth and to want kindness and good care for themselves and their newborns. This is perhaps where the opportunity for change should begin.

A trial of amniotomy in a Palestinian hospital

This randomised controlled trial of routine amniotomy was carried out in a developing country setting to investigate the effect of this common procedure on the duration of labour, intra-partum interventions and selected newborn and maternal outcomes. In a Jerusalem teaching hospital, 533 multiparous and 157 nulliparous low-risk women were randomised to either amniotomy or intent to conserve membranes. For multiparae, the median duration from randomisation to full dilatation was 95 and 160 min, respectively in the intervention and control arms (p < 0.001); for nulliparae it was 210 and 270 min, respectively (p < 0.001). In both groups, oxytocin was used less in the intervention arms (p < 0.001), and no difference in mode of delivery and immediate outcomes was detected. However, given the risks of this intervention and these study findings indicating an overall short duration of childbirth, amniotomy should be limited to cases of abnormal progress of labour.

Intrapartum oxytocin use for labor acceleration in rural India

OBJECTIVE

To examine factors associated with the use of oxytocin for acceleration of labor in women delivered at home in rural India.

METHOD

Quantitative data were collected from 527 women who were delivered at home and qualitative interviews were carried out with 21 mothers and 9 birth attendants.

RESULTS

Oxytocin use was associated with higher education and socioeconomic status, primigravidity, and delivery by a traditional birth attendant.

CONCLUSION

Labor acceleration with oxytocin occurs indiscriminately In India. Oxytocin use should be regulated, and training for birth attendants should be provided as well as health education for pregnant women.

Childbirth in Palestine

OBJECTIVE

This study describes staffing, caseloads and reported routine practices for normal childbirth in Palestinian West Bank (WB) governmental maternity facilities and compares these practices with evidence-based care.

METHODS

Data on routine childbirth practices in all eight governmental hospitals were obtained through interviews with head obstetricians and midwives. Data on staffing and monthly number of births were collected by phone or personal interview from all 37 WB hospitals.

RESULTS

Forty-eight percent of WB deliveries took place in crowded and understaffed governmental hospitals. Reported practices were not consistently in line with evidence-based care. Lack of knowledge and structural barriers were reasons for this gap.

CONCLUSION

The implications of limiting unnecessary interventions in the normal birth process are particularly important in a context of limited access and scarce resources. More skilled birth attendants and a universal commitment to effective care are needed.

Labor augmentation in an Egyptian teaching hospital

OBJECTIVES

The study documented facility-based obstetric practices for normal labor in Egypt for the first time, to determine their relationship to evidence-based medicine. This paper describes the labor augmentation pattern observed.

METHODS

176 cases of normal labor were observed by medically-trained observers using a checklist. Ward activities were also documented. Observed women were interviewed postpartum and all findings were shared with the providers for their feedback.

RESULTS

Labor was augmented in 91% (165) of the labors observed; this was inappropriate for 93% or 154 women. Reasons for inappropriateness were: oxytocin ordered at the first vaginal exam (41%); in spite of intact membranes (36%), at the time of membrane rupture (42%), in spite of good progress (24%), or a combination of these. The monitoring of oxytocin-receiving women and their babies was inadequate.

CONCLUSIONS

Labor augmentation and monitoring deviated from evidence-based guidelines. Obstacles to implementing protocols need to be explored.