Clinical interventions to reduce stillbirths in sub-Saharan Africa: a mathematical model to estimate the potential reduction of stillbirths associated with specific obstetric conditions

Perinatal care and its association with perinatal death among women attending care in three district hospitals of western Uganda

BACKGROUND

Provision of effective care to all women and newborns during the perinatal period is a viable strategy for achieving the Sustainable Development Goal 3 targets on reducing maternal and neonatal mortality. This study examined perinatal care (antenatal, intrapartum, postpartum) and its association with perinatal deaths at three district hospitals in Bunyoro region, Uganda.

METHODS

A cross-sectional study was conducted in which a questionnaire was administered consecutively to 872 postpartum women before discharge who had attended antenatal care and given birth in the study hospitals. Data on care received during antenatal, labour, delivery, and postpartum period, and perinatal outcome were extracted from medical records of the enrolled postnatal women using a pre-tested structured tool. The care received from antenatal to 24 h postpartum period was assessed against the standard protocol of care established by World Health Organization (WHO). Poisson regression was used to assess the association between care received and perinatal death.

RESULTS

The mean age of the women was 25 years (standard deviation [SD] 5.95). Few women had their blood tested for hemoglobin levels, HIV, and Syphilis (n = 53, 6.1%); had their urine tested for glucose and proteins (n = 27, 3.1%); undertook an ultrasound scan (n = 262, 30%); and had their maternal status assessed (n = 122, 14%) during antenatal care as well as had their uterus assessed for contraction and bleeding during postpartum care (n = 63, 7.2%). There were 19 perinatal deaths, giving a perinatal mortality rate of 22/1,000 births (95% Confidence interval [CI] 8.1-35.5). Of these 9 (47.4%) were stillbirths while the remaining 10 (52.6%) were early neonatal deaths. In the antenatal phase, only fetal examination was significantly associated with perinatal death (adjusted prevalence ratio [aPR] = 0.22, 95% CI 0.1-0.6). No significant association was found between perinatal deaths and care during labour, delivery, and the early postpartum period.

CONCLUSION

Women did not receive all the required perinatal care during the perinatal period. Perinatal mortality rate in Bunyoro region remains high, although it's lower than the national average. The study shows a reduction in the proportion of perinatal deaths for pregnancies where the mother received fetal monitoring. Strategies focused on strengthened fetal status monitoring such as fetal movement counting methods and fetal heart rate monitoring devices during pregnancy need to be devised to reduce the incidence of perinatal deaths. Findings from the study provide valuable information that would support the strengthening of perinatal care services for improved perinatal outcomes.

Incidence and sociodemographic, living environment and maternal health associations with stillbirth in a tertiary healthcare setting in Kano, Northern Nigeria

Background

Almost two million stillbirths occur annually, most occurring in low- and middle-income countries. Nigeria is reported to have one of the highest stillbirth rates on the African continent. The aim was to identify sociodemographic, living environment, and health status factors associated with stillbirth and determine the associations between pregnancy and birth factors and stillbirth in the Murtala Mohammed Specialist Hospital, Kano, Nigeria.

Methods

A three-month single-site prospective observational feasibility study. Demographic and clinical data were collected. We fitted bivariable and multivariable models for stillbirth (yes/no) and three-category livebirth/macerated stillbirth/non-macerated stillbirth outcomes to explore their association with demographic and clinical factors.

Findings

1,998 neonates and 1,926 mothers were enrolled. Higher odds of stillbirth were associated with low-levels of maternal education, a further distance to travel to the hospital, living in a shack, maternal hypertension, previous stillbirth, birthing complications, increased duration of labour, antepartum haemorrhage, prolonged or obstructed labour, vaginal breech delivery, emergency caesarean-section, and signs of trauma to the neonate following birth.

Interpretation

This work has obtained data on some factors influencing stillbirth. This in turn will facilitate the development of improved public health interventions to reduce preventable deaths and to progress maternal health within this site.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12884-022-04971-x.

A qualitative focus group study concerning perceptions and experiences of Nigerian mothers on stillbirths

Objective

To explore the experiences and perceptions of stillbirth among mothers from a tertiary medical centre in Kano, Northern Nigeria.

Design

Qualitative, interpretative.

Setting

Tertiary healthcare facility, Murtala Muhammad Specialist Hospital (MMSH), Kano, Northern Nigeria.

Sample

Mothers who had given birth to a liveborn baby at the MMSH in the prior 6 months (n = 31). In order to capture the experiences and perception of stillbirth within this cohort we approached mothers who had in a previous pregnancy experienced a stillbirth. Of the 31 who attended 16 had a previous stillbirth.

Methods

Semi-structured Focus Group Discussions, consisting of open-ended questions about stillbirth, beliefs, experiences and influences were held in MMSH, conducted over 1 day.

Results

Our findings highlight that this is a resource-poor tertiary facility serving an ever-growing population, increasing strain on the hospital and healthcare workers. Many of the participants highlighted needing permission from certain family members before accessing healthcare or medical treatment. We identified that mothers generally have knowledge on self-care during pregnancy, yet certain societal factors prevented that from being their priority. Judgement and blame was a common theme, yet a complex area entwined with traditions, superstitions and the pressure to procreate with many mothers described being made to feel useless and worthless if they did not birth a live baby.

Conclusions

As access to healthcare becomes easier, there are certain traditions, family and social dynamics and beliefs which conflict with scientific knowledge and act as a major barrier to uptake of healthcare services. The findings highlight the need for investment in maternity care, appropriate health education and public enlightenment; they will help inform appropriate interventions aimed at reducing stigma around stillbirth and aide in educating mothers about the importance of appropriate health seeking behaviour. Stillbirths are occurring in this area of the world unnecessarily, globally there has been extensive research conducted on stillbirth prevention. This research has highlighted some of the areas which can be tackled by modifying existing successful interventions to work towards reducing preventable stillbirths.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12884-021-04207-4.

Consistency and timeliness of intrapartum care interventions as predictors of intrapartum stillbirth in public health facilities of Addis Ababa, Ethiopia: a case-control study

Introduction

approximately one-third of the global stillbirth burden occurs during intrapartum period. Intrapartum stillbirths occurring in the health facilities imply that a foetus was alive on admission to labour and had greater chances of survival with optimum obstetric care. Active monitoring and follow-up by skilled birth attendants becomes critical to determine the progress of labour and to decide any emergency obstetrical care actions. Timely monitoring of labour progress indicators including fetal heart rate (FHR), uterine contraction maternal vital signs, vaginal examination (VE) are vital in reducing intrapartum stillbirth.

Methods

a case-control study was conducted using primary data from chart review of medical records of women who experienced intrapartum stillbirth in 20 public health centres and 3 public hospitals of Addis Ababa between July 1^st, 2010 to June 30^th, 2015. Data were collected from charts of all cases of intrapartum stillbirths meeting the inclusion criteria and randomly selected charts of controls from each public health facility in 2: 1 control to case ratio.

Results

over 90% of both cases and controls received FHR monitoring care albeit the timing was substandard. More women in the live birth group than intrapartum stillbirth group received timely care related to uterine contraction (OR 2.42, 95% CI 1.77 - 3.30) and blood pressure monitoring (aOR 1.41, 95% CI 1.09 - 1.81). 1.2% and 0.3% of women in the intrapartum stillbirth and livebirth groups developed eclampsia respectively.

Conclusion

substandard timing and application of labour monitoring interventions including FHR, uterine contraction can predict intrapartum stillbirth in public health facilities.

Preventable stillbirths in India and Pakistan: a prospective, observational study

OBJECTIVE

Stillbirths occur 10-20 times more frequently in low-income settings compared with high-income settings. We created a methodology to define the proportion of stillbirths that are potentially preventable in low-income settings and applied it to stillbirths in sites in India and Pakistan.

DESIGN

Prospective observational study.

SETTING

Three maternity hospitals in Davangere, India and a large public hospital in Karachi, Pakistan.

POPULATION

All cases of stillbirth at ≥20 weeks of gestation occurring from July 2018 to February 2020 were screened for participation; 872 stillbirths were included in this analysis.

METHODS

We prospectively defined the conditions and gestational ages that defined the stillbirth cases considered potentially preventable. Informed consent was sought from the parent(s) once the stillbirth was identified, either before or soon after delivery. All information available, including obstetric and medical history, clinical course, fetal heart sounds on admission, the presence of maceration as well as examination of the stillbirth after delivery, histology, and polymerase chain reaction for infectious pathogens of the placenta and various fetal tissues, was used to assess whether a stillbirth was potentially preventable.

MAIN OUTCOME MEASURES

Whether a stillbirth was determined to be potentially preventable and the criteria for assignment to those categories.

RESULTS

Of 984 enrolled, 872 stillbirths at ≥20 weeks of gestation met the inclusion criteria and were included; of these, 55.5% were deemed to be potentially preventable. Of the 649 stillbirths at ≥28 weeks of gestation and ≥1000 g birthweight, 73.5% were considered potentially preventable. The most common conditions associated with a potentially preventable stillbirth at ≥28 weeks of gestation and ≥1000 g birthweight were small for gestational age (SGA) (52.8%), maternal hypertension (50.2%), antepartum haemorrhage (31.4%) and death that occurred after hospital admission (15.7%).

CONCLUSIONS

Most stillbirths in these sites were deemed preventable and were often associated with maternal hypertension, antepartum haemorrhage, SGA and intrapartum demise.

TWEETABLE ABSTRACT

Most stillbirths are preventable by better care for women with hypertension, growth restriction and antepartum haemorrhage.

Potentially preventable antepartum stillbirths in a high-resource setting: a prospective audit-based study

OBJECTIVES

The primary objective was the identification of sub-standard care in antepartum stillbirths in Emilia-Romagna Region (Italy), hence the number of potentially preventable cases. Secondly, we seek to evaluate any association between inadequate care and either risk factors for stillbirth or causes of death.

STUDY DESIGN

This study was based on prospectively-collected data in an institutional stillbirth audit project, involving all 29 hospital with a maternity unit in Emilia-Romagna Region. For each stillbirth occurred in the area from 2014 to the first semester of 2019 the same diagnostic workup was performed and a clinical record with data about mother and stillborn was completed. Every case was discussed in a multidisciplinary local audit to assess both the cause of death and the quality of care. Two aspects of care quality were evaluated: clinical management and women's access to care. Data were then reviewed by the Regional Audit Group.

RESULTS

Elements of inadequate care were identified in 56 out of 524 (10.7 %) fetal deaths. Non-Italian women and pregnancies with fetal growth restriction had double the risk of having received inadequate care during pregnancy, compared to Italian women (aOR 2.0, 95 % CI 1.1-3.6) and a normally developing fetus (aOR 2.0, 95 % CI 1.1-4.1), respectively. Women whose stillbirth was caused by maternal disorders were at higher risk for inadequate care compared to women who had stillbirth explained by other cause (aOR 5.89, 95 %CI 2.2-15.4). Sub-optimal clinical management and barriers to access to care were observed to equal extents. Inappropriate ultrasound monitoring was the most frequent suboptimal care element.

CONCLUSIONS

About one out of ten stillbirths was potentially preventable. Interventions to reduce stillbirth occurrence in our high-resource setting should focus on appropriate diagnosis and management of maternal disorders and fetal growth restriction, as well as improving access to antenatal care.

Perinatal outcomes of cesarean deliveries in Sierra Leone: A prospective multicenter observational study

OBJECTIVE

To analyze the indications for cesarean deliveries and factors associated with adverse perinatal outcomes in Sierra Leone.

METHODS

Between October 2016 and May 2017, patients undergoing cesarean delivery performed by medical doctors and associate clinicians in nine hospitals were included in a prospective observational study. Data were collected perioperatively, at discharge, and during home visits after 30 days.

RESULTS

In total, 1274 cesarean deliveries were included of which 1099 (86.3%) were performed as emergency surgery. Of the 1376 babies, 261 (19.0%) were perinatal deaths (53 antepartum stillbirths, 155 intrapartum stillbirths, and 53 early neonatal deaths). Indications with the highest perinatal mortality were uterine rupture (45 of 55 [81.8%]), abruptio placentae (61 of 85 [71.8%]), and antepartum hemorrhage (8 of 15 [53.3%]). In the group with cesarean deliveries performed for obstructed and prolonged labor, a partograph was filled out for 212 of 425 (49.9%). However, when completed, babies had 1.81-fold reduced odds for perinatal death (95% confidence interval 1.03-3.18, P-value 0.041).

CONCLUSION

Cesarean deliveries in Sierra Leone are associated with an exceptionally high perinatal mortality rate of 190 per 1000 births. Late presentation in the facilities and lack of adequate fetal monitoring may be contributing factors.

It Takes a System: Magnesium Sulfate for Prevention of Eclampsia in a Resource-Limited Community Setting

Magnesium sulfate is not a silver bullet to reduce maternal mortality associated with preeclampsia/eclampsia. We believe a well-functioning health care system, especially at the hospital level, with competent well-trained providers, adequate equipment, and medications will likely be necessary.

Criteria for assigning cause of death for stillbirths and neonatal deaths in research studies in low-middle income countries

Accurate knowledge regarding cause of death (COD) for stillbirths and neonatal deaths is crucial, especially in low-income countries, in order for public health and medical officials to choose appropriate interventions likely to reduce these deaths. To date, many of the COD studies in these areas have relied only on obstetric or neonatal clinical information and the determination of COD is likely to be inaccurate. Information related to infectious COD is especially lacking. Thus, without more sophisticated testing, data as currently collected only provide a very weak approximation of the COD and may well lead to adoption of interventions of limited usefulness. In this commentary, we propose recommendations regarding the type of data needed to determine with reasonable accuracy the COD for stillbirths and neonatal deaths in low-resource settings. Using these data, and a method to determine the degree of certainty, we then propose definitions for the most common COD. Our goal is to reduce subjectivity and provide more specificity for the tests used in existing classification systems so that the methodology of COD determination is transparent and able to be replicated over time and from location to location.

Birthing experience and quality of life after vacuum delivery and second-stage caesarean section: a prospective cohort study in Uganda

OBJECTIVE

To assess perceptions of women undergoing vacuum extraction or second-stage caesarean section (SSCS) in a tertiary referral hospital in sub-Saharan Africa.

METHODS

Prospective cohort study, with six-month follow-up, of women who gave birth to a term singleton in cephalic presentation by vacuum extraction (n = 289) or SSCS (n = 357) between 25 November 2014, to 8 July 2015, in Mulago Hospital, Uganda. Excluded were women who had failed vacuum extraction, severe birth complications and those whose babies had died. Outcome measures were birthing experience satisfaction, physical component summary (PCS) and mental component summary (MCS) of the SF-12 quality-of-life questionnaire, pain scores and dyspareunia.

RESULTS

One day after vacuum extraction, 63.7% (181/284) of women were feeling well vs. 48.1% (167/347) after SSCS (OR 1.89; 95%CI 1.37-2.61) and mean pain sores were 2.70 vs. 3.87 (P < 0.001). In both groups, >90% of women were satisfied with their birthing experience. At six weeks, in vacuum extraction vs. SSCS, mean pain sores were 0.40 vs. 0.89 (P < 0.001); mean PCS was 48.67 vs. 44.03 (P < 0.001); mean MCS was 52.80 vs. 51.23 (P = 0.203); 40% (70/175) vs. 28.3% (70/247) of women had resumed sexual intercourse (OR 1.69; 95%CI 1.12-2.54) and 21.4% (15/70) vs. 28.6% (20/70) had dyspareunia (OR 0.68; 95%CI 0.32-1.47). No differences were found at six months after birth.

CONCLUSION

One day and six weeks after birth, outcomes were better in women who had vacuum extraction. At six months, outcomes were similar. To promote quick recovery, vacuum extraction should be the first intervention considered in the second stage of labour.

Potentially Preventable Stillbirth in a Diverse U.S. Cohort

OBJECTIVE

To estimate the proportion of potentially preventable stillbirths in the United States.

METHODS

We conducted a secondary analysis of 512 stillbirths with complete evaluation enrolled in the Stillbirth Collaborative Research Network from 2006 to 2008. The Stillbirth Collaborative Research Network was a multisite, geographically, racially, and ethnically diverse, population-based case-control study of stillbirth in the United States. Cases of stillbirth underwent standard evaluation that included maternal interview, medical record abstraction, biospecimen collection, postmortem examination, placental pathology, and clinically recommended evaluation. Each stillbirth was assigned probable and possible causes of death using the Initial Causes of Fetal Death algorithm system. For this analysis, we defined potentially preventable stillbirths as those occurring in nonanomalous fetuses, 24 weeks of gestation or greater, and weighing 500 g or greater that were 1) intrapartum, 2) the result of medical complications, 3) the result of placental insufficiency, 4) multiple gestation (excluding twin-twin transfusion), 5) the result of spontaneous preterm birth, or 6) the result of hypertensive disorders of pregnancy.

RESULTS

Of the 512 stillbirths included in our cohort, causes of potentially preventable stillbirth included placental insufficiency (65 [12.7%]), medical complications of pregnancy (31 [6.1%]), hypertensive disorders of pregnancy (20 [3.9%]), preterm labor (16 [3.1%]), intrapartum (nine [1.8%]), and multiple gestations (four [0.8%]). Twenty-seven stillbirths fit two or more categories, leaving 114 (22.3%) potentially preventable stillbirths.

CONCLUSION

Based on our definition, almost one fourth of stillbirths are potentially preventable. Given the predominance of placental insufficiency among stillbirths, identification and management of placental insufficiency may have the most immediate effect on stillbirth reduction.

Maternal and Neonatal Directed Assessment of Technologies (MANDATE): Methods and Assumptions for a Predictive Model for Maternal, Fetal, and Neonatal Mortality Interventions

MANDATE is a mathematical model designed to estimate the relative impact of different interventions on maternal, fetal, and neonatal lives saved in sub-Saharan Africa and India. A key advantage is that it allows users to explore the contribution of preventive interventions, diagnostics, treatments, and transfers to higher levels of care to mortality reductions, and at different levels of penetration, utilization, and efficacy.

Maternal, fetal, and neonatal mortality disproportionately impact low- and middle-income countries, and many current interventions that can save lives are often not available nor appropriate for these settings. Maternal and Neonatal Directed Assessment of Technologies (MANDATE) is a mathematical model designed to evaluate which interventions have the greatest potential to save maternal, fetal, and neonatal lives saved in sub-Saharan Africa and India. The MANDATE decision-support model includes interventions such as preventive interventions, diagnostics, treatments, and transfers to different care settings to compare the relative impact of different interventions on mortality outcomes. The model is calibrated and validated based on historical and current rates of disease in sub-Saharan Africa and India. In addition, each maternal, fetal, or newborn condition included in MANDATE considers disease rates specific to sub-Saharan Africa and India projected to intervention rates similar to those seen in high-income countries. Limitations include variance in quality of data to inform the estimates and generalizability of findings of the effectiveness of the interventions. The model serves as a valuable resource to compare the potential impact of multiple interventions, which could help reduce maternal, fetal, and neonatal mortality in low-resource settings. The user should be aware of assumptions in evaluating the model and interpret results accordingly.