Binational confidential enquiry of maternal deaths due to postpartum hemorrhage in France and the Netherlands: Lessons learned through the perspective of a different context of care

OBJECTIVE

To learn lessons for maternity care by scrutinizing postpartum hemorrhage management (PPH) in cases of PPH-related maternal deaths in France and the Netherlands.

METHODS

In this binational Confidential Enquiry into Maternal Deaths (CEMD), 14 PPH-related maternal deaths were reviewed by six experts from the French and Dutch national maternal death review committees regarding cause and preventability of death, clinical care and healthcare organization. Improvable care factors and lessons learned were identified. CEMD practices and PPH guidelines in France and the Netherlands were compared in the process.

RESULTS

For France, new insights were primarily related to organization of healthcare, with lessons learned focusing on medical leadership and implementation of (surgical) checklists. For the Netherlands, insights were mainly related to clinical care, emphasizing hemostatic surgery earlier in the course of PPH and reducing the third stage of labor by prompter manual removal of the placenta. Experts recommended extending PPH guidelines with specific guidance for women refusing blood products and systematic evaluation of risk factors. The quality of CEMD was presumed to benefit from enhanced case finding, also through non-obstetric sources, and electronic reporting of maternal deaths to reduce the administrative burden.

CONCLUSION

A binational CEMD revealed opportunities for improvement of care beyond lessons learned at the national level.

Ultra-high dose of intravenous immunoglobulin restores strength and motor function in a patient with refractory multifocal motor neuropathy

INTRODUCTION

Multifocal motor neuropathy (MMN) is a chronic progressive immune-mediated neuropathy, predominantly involving upper limbs asymmetrically with electrophysiologic evidence of motor conduction block. The treatment of choice is immunoglobulin (Ig). Nevertheless, some patients may become resistant to treatment. We describe a patient with history of MMN who became resistant to gammaglobulin treatment but markedly improved using ultra-high doses of intravenous immunoglobulin.

CASE REPORT

A 36-year-old woman with diagnosis of MMN. After 5 years of clinical stability under subcutaneous Ig (2g/kg/month) the patient developed bilateral weakness involving both hands. Treatment was switched to intravenous Ig 2g/kg/month, nevertheless, she progressed and became totally dependent for activities of daily living. We started ultra-high dose intravenous immunoglobulin 5 g/kg/month, with good response. She became independent for activities of daily living and returned to work. The only treatment related adverse event was headache during infusion.

CONCLUSION

Ultra-high dose intravenous Ig seems to be a useful therapy in aggressive MMN with severe disability despite conventional treatment. A low cardiovascular risk score (QRISK2 less than 10%) and a daily intravenous Ig lower than 35 g reduce the risk of severe complications related to intravenous Ig.

Non-convulsive status epilepticus as the initial manifestation in a family with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL)

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an autosomal dominant small-vessel disease caused by mutations of the NOTCH3 gene. It typically presents with migraine, recurrent brain ischaemia, and cognitive disorders. Seizures rarely present as the initial manifestation, with non-convulsive status epilepticus being even less frequent. We present a series of 3 related patients with this arteriopathy, 2 of whom presented status epilepticus as a manifestation of the disease.

[Enhanced system for maternal mortality surveillance in France, context and Methods]

Maternal mortality, despite its rarity in rich countries, remains a fundamental indicator of maternal health. It is considered as a "sentinel event", consequence of dysfunctions of the health care system, often cumulative. In addition to the classical epidemiological surveillance outcomes-number of deaths, maternal mortality ratio and identification of the subgroups of women at higher risk-its study allows an accurate analysis of each deceased woman's trajectory to identify opportunities for improvements in the content or organization of care; the correction of which will make it possible to prevent deaths but also upstream morbid events affected by the same dysfunctions. To achieve this dual epidemiological and clinical audit objective, an ad hoc enhanced system is needed. France has had such a system since 1996, the National Confidential enquiry into maternal deaths (ENCMM), coordinated by the Inserm Epopé team. The methodology has been adapted over time to improve completeness and better document cases. The first step is the multi-source identification (direct declaration, death certificate, birth certificates, hospital discharge data) of women who died during pregnancy or within one year of its end, in metropolitan France and overseas departments. The second step is the collection of detailed information for each death by a pair of clinical assessors. Recent evolutions aim to better document the social context of women as well as the background of women who have died of suicide. Psychiatrists have been included among the assessors. The third stage is the review of these anonymized documents by the National Committee of Experts on Maternal Mortality, which judges whether the death is maternal (causal link) and makes a judgment on the adequacy of care and avoidability of death. A psychiatrist is now associated to the CNEMM for the assessment of maternal suicides. The synthesis of the information thus collected for maternal deaths in the period 2013-2015 is presented in these articles of this special issue.

[Maternal Mortality, Frequency, causes, women's profile and preventability of deaths in France, 2013-2015]

OBJECTIVE

To describe, for the 2013-2015 period, the frequency, causes, risk factors, adequacy of care and preventability of maternal deaths in France.

METHOD

Data from the National Confidential Enquiry into Maternal Deaths for 2013-2015.

RESULTS

For the period 2013-2015, 262 maternal deaths occurred in France, one every four days, i.e a maternal mortality ratio of 10.8 per 100,000 live births (95 % CI 9.5-12.1), stable compared to 2010-2012. Compared to women aged 25-29, the risk is multiplied by 1.9 for women aged 30-34, by 3 for women aged 35-39 and by 4 for women aged 40 and over. Obese women are twice as frequent among maternal deaths (24 %) than in the general population of parturients (11 %). There are territorial disparities - the maternal mortality ratio in the French overseas departments is 4 times higher than in metropolitan France -, and social disparities - the mortality of migrant women remains higher than that of women born in France, particularly for women born in sub-Saharan Africa whose risk is 2.5 times higher than that native women. A striking result of the 2013-2015 period is the preponderance of suicides and cardiovascular diseases, the two leading causes of maternal mortality, each responsible for approximately one death per month. These two etiologies are not only the most frequent, but also among those with the highest proportion of preventable deaths, 91.3 % and 65.7 % respectively. Another important result is the continued decrease in mortality from obstetric haemorrhage, halved in 15 years, particularly the decrease n hemorrhages due to uterine atony. Overall, 57.8 % of maternal deaths are considered probably or possibly preventable and in 66 % of cases, the care provided was not optimal.

CONCLUSION

While the overall maternal mortality ratio remains stable overall, and territorial and social inequalities unchanged, the profile of the causes of maternal mortality is changing. Some developments are a success, such as the continued decrease in maternal mortality due to haemorrhage, the result of the general mobilisation of health actors on this issue. Others point to new priorities for mobilisation, in particular on the mental and cardiovascular health of women during pregnancy or in the year following childbirth. In order to go further in understanding the mechanisms involved, and to identify precise avenues for prevention, it is necessary to analyse in detail the stories of each maternal death in order to identify the opportunities for improvement repeatedly found in the series of deaths. This is what the following articles in this issue propose, with an analysis by cause of death.

Non-convulsive status epilepticus as the initial manifestation in a family with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL)

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an autosomal dominant small-vessel disease caused by mutations of the NOTCH3 gene. It typically presents with migraine, recurrent brain ischaemia, and cognitive disorders. Seizures rarely present as the initial manifestation, with non-convulsive status epilepticus being even less frequent. We present a series of 3 related patients with this arteriopathy, 2 of whom presented status epilepticus as a manifestation of the disease.

Maternal admissions to Intensive Care Units in France: trends in rates, causes and severity

Introduction

Maternal intensive care unit admission (ICU) is an indicator of severe maternal morbidity. This study aimed to estimate rates of maternal ICU admission during or following pregnancy in France, and to describe the characteristics of women admitted, the severity of their condition, associated diagnoses, regional disparities, and temporal trends between 2010 and 2014.

Methods

Women hospitalised in France in ICU during pregnancy or up to 42 days after pregnancy between 2010 and 2014 were identified using the national hospital discharge database (PMSI-MCO). The Simplified Acute Physiology Score (SAPS II) was used to estimate the severity. Trends in incidence rates were quantified using percentages of average annual variation based on a Poisson regression model.

Results

In total, 16,011 women were admitted to ICU, representing an overall rate of 3.97 ‰ deliveries. The average annual decrease in this rate between 2010 and 2014 was 1.7% (IC95%:-2, 00%; -1, 45%; p < 0.0001) on average per year. The SAPS II score increased significantly from 18.4 in 2010 to 21.5 in 2014. Obstetrical hemorrhage (39.8%) and hypertensive complications during pregnancy (24.8%) were the most common reasons for admission. Within mainland France, we found notable disparities in maternal ICU admission rates between regions, from lowest in Pays-de-la-Loire region (2.69‰) to highest in Ile-de-France (5.05‰).

Conclusions

The rate of maternal ICU admission decreased from 2010 to 2014 in France, with a concomitant increase in case severity. Additional studies are needed to understand the territorial disparities identified in our study.

Key messages

The decreasing incidence of maternal ICU admission could be due to organisational changes with increased admission to intermediate care units. These changes have to be understood to accurately use maternal CU admission for maternal health surveillance.

[Maternal mortality among women with Marfan syndrome or vascular Ehlers-Danlos syndrome in France, 2001-2012]

OBJECTIVE

To describe maternal deaths in France associated with Marfan's syndrome or vascular Ehlers-Danlos syndrome.

STUDY DESIGN

A retrospective descriptive study based on data from the national confidential enquiry into maternal deaths, in France, during 2001-2012. Characteristics of the patients, their pregnancies and details of their deaths were analysed. The specific maternal mortality ratio by Marfan's syndrome or vascular Ehlers-Danlos syndrome was estimated.

RESULTS

Among 973 maternal deaths that occurred during the study period, five (0.4%) had a Marfan's syndrome (n=3) or a vascular Ehlers-Danlos syndrome (n=2), confirmed or suspected. The maternal mortality ratio due to Marfan's syndrome or vascular Ehlers-Danlos syndrome between 2001 and 2012 was 0.04/100,000 live births (IC 95% [0.011-0.2]). Three maternal deaths were caused by aortic dissections and two by other arterial ruptures. The deaths have occurred after 37 weeks of pregnancy for 4 patients, and at fifteen days of post-partum for one patient. The median age of death was 30 years. Three patients were nulliparous. Marfan's syndrome and vascular Ehlers-Danlos syndrome were not identified before the death of these five patients.

CONCLUSION

Five patients with, or suspected to have, Marfan's syndrome or vascular Ehlers-Danlos syndrome were identified. Early diagnosis of these syndromes in pregnant women before life threatening events is very important, especially to refer them to appropriate care.

[Enhanced system for maternal mortality surveillance in France, context and methods]

Maternal mortality, despite its rarity in rich countries, remains a fundamental indicator of maternal health. It is considered as a "sentinel event", consequence of dysfunctions of the health care system, often cumulative. In addition to the classical epidemiological surveillance outcomes-number of deaths, maternal mortality ratio and identification of the subgroups of women at risk-its study allows an accurate analysis of each deceased woman's trajectory to identify opportunities for improvements in the content or organization of care; the correction of which will make it possible to prevent deaths but also upstream morbid events affected by the same dysfunctions. To achieve this dual epidemiological and clinical audit objective, an ad hoc enhanced system is needed. France has had such a system since 1996, the National Confidential enquiry into maternal deaths (ENCMM), coordinated by the Inserm Epopé team. The first step is the multi-source identification (direct declaration, death certificate, birth certificates, hospital discharge data) of women who died during pregnancy or within one year of its end. The second step is the collection of detailed information for each death by a pair of clinical assessors. The third stage is the review of these anonymized documents by the National Committee of Experts on Maternal Mortality, which judges whether the death is maternal (causal link) and makes a judgment on the adequacy of care and avoidability of death. The synthesis of the information thus collected for maternal deaths in the period 2010-2012 is the subject of the last report.

[Epidemiology of maternal mortality in France, 2010-2012]

OBJECTIVE

To describe, for the period 2010-2012, the frequency, the causes, the risk factors, the adequacy of care and the avoidability of maternal deaths in France.

METHOD

Data from the National Confidential Enquiry into Maternal Deaths for 2010-2012.

RESULTS

For the period 2010-2012, 256 maternal deaths occurred in France, a maternal mortality ratio of 10.3 per 100,000 live births (95% CI: 9.1-11.7), stable compared to 2007-2009. Compared to women aged 25-29, the risk is multiplied by 2.4 for women aged 35-39, and by 3 for women over 40 years. There are territorial disparities: 1 out of 7 maternal deaths occurs in the French overseas departments, and the maternal mortality ratio in those departments is 4 times that of metropolitan, France; and social disparities: the mortality of migrant women remains 2.5 times higher than that of women born in France, particularly for women born in sub-Saharan Africa whose RMM is 3.5 times that native women. A major finding is the 1/3 decrease in direct maternal mortality over the last 10 years, mainly due to for the first time the statistically significant decrease in mortality from obstetric hemorrhage, the frequency of which was divided by 2 in 10 years. However, almost all of the remaining deaths from hemorrhage are considered preventable and this is still the leading cause of maternal mortality in France (11% of deaths). Overall, 56% of these maternal deaths are considered "avoidable" or "possibly avoidable" and in 59% of cases the care provided was not optimal.

CONCLUSION

Direct maternal mortality and in particular maternal mortality from hemorrhage has decreased significantly over the past 10 years, indicating improved obstetric care. However, territorial and social inequalities persist, and the majority of deaths remain preventable, which shows that the identification of opportunities for improvement must continue. To go even further in understanding the mechanisms involved, and to identify precise avenues of prevention, it is necessary to analyze in detail the stories of each maternal death in order to identify the repetitive elements in the series of deaths. This is what the following articles in this issue propose, with an analysis by cause of death, according to the idea that the same cause produces the same effects.

Understanding regional differences in maternal mortality: a national case-control study in France

OBJECTIVES

To assess the risk of postpartum maternal death associated with region, and to examine whether the quality of care received by the women who died differed by region.

DESIGN

A national case-control study.

SETTING

France.

POPULATION

Selected from recent nationwide surveys, 328 postpartum maternal deaths from 2001 through 2006 as cases; and a representative sample (n = 14 878) of women who gave birth in 2003 as controls.

METHODS

Crude and adjusted odds ratios (aOR) of maternal death associated with region were calculated with logistic regression, and the quality of care for women who died was compared according to region with chi-square tests or Fisher's exact tests.

MAIN OUTCOME MEASURES

Risk of postpartum maternal death associated with region, and quality of care.

RESULTS

After adjustment for maternal age and nationality, the risk of maternal death was higher in the Ile-de-France region (aOR 1.6, 95% CI 1.2-2.0) and the overseas districts (aOR 3.5, 95% CI 2.4-5.0) than in the group for the rest of continental France. In both regions, the excess risk of death from haemorrhage, amniotic fluid embolism and hypertensive disorders was significant. In continental France, after further controlling for women's obstetric characteristics, the risk of maternal death in Ile-de-France remained higher (aOR 1.8. 95% CI 1.3-2.6). The women in the cases groups received suboptimal care more frequently in Ile-de-France than in the other continental regions (64% versus 43%, P = 0.01).

CONCLUSIONS

These results suggest that quality of care and organisation of health services may play a role in the differential risk of maternal mortality between regions in France. Research on severe maternal morbidity and its determinants is needed to clarify the mechanisms involved.

[The confidential enquiries into maternal deaths, 1996-2006 in France: what consequences for the obstetrical care?]

The national confidential enquiry into maternal deaths (ENCMM) and its committee (CNEMM) have the target to study all maternal deaths occurring in France, in order to expertise the care provided. The current report covers the 1996--year of the ENCMM establishment--to 2006 years. After being informed of the potential maternal deaths by the Epidemiological center on medical causes of deaths (CépiDC), and agreement from the medical doctors concerned, two assessors (one anesthetist and one obstetrician) gather the medical or obstetrical information near the team involved in the care of the women, by the mean of a detailed and specific questionnaire. The completely anonymous files are expertised by the CNEMM. Maternal mortality rates have been calculated by periods, the distribution of the obstetrical causes and the characteristics of the dead women were calculated too. The substandard care and the avoidability of deaths were estimated by subgroup. Since 1996 to 2006, 729 maternal deaths were included of which 553 were expertised. The majority of maternal deaths were due to direct obstetrical causes (73%) mainly haemorrhages (22%), amniotic fluid embolism (12%), complications of hypertension (10 %), and venous thrombo-embolism (around 10 % each). Half of maternal deaths were considered preventable by the CNEMM, particularly haemorrhage and sepsis. The factors of avoidability are delay to treat (31%) inadapted therapeutics (28%), even professional default (20%) no diagnosis (15%) or reluctant patient (7%). Seven deaths are discussed in a specific section including a detailed description of, and recommendations on how the quality of care may be improved.