Aetiological Classification of Stillbirths: A Case Control Study

Burden, Differentials and Causes of Stillbirths in India: A Systematic Review and Meta Analysis

India contributes the highest absolute number of stillbirths in the world. This systematic review and meta-analysis was conducted to synthesize the burden, timing and causes of stillbirths in India. Forty-nine reports from 46 studies conducted in 21 Indian states and Union Territories were included. It was found that there was no uniformity/standardization in the definition of stillbirths and in the classification system used to assign the cause. The share of antepartum stillbirths was estimated to be two-third while remaining were intrapartum stillbirths. Maternal conditions and fetal causes were found to be the leading cause of stillbirth in India. The maternal condition was assigned as the commonest cause (25%) followed by fetal (14%), placental cause (13%), congenital malformation (6%) and intrapartum complications (4%). Approximately 20% of the stillbirths were assigned as unknown or unexplained. This review demonstrates that there is a paucity of quality stillbirth data in India. Other than the state level differences in stillbirth rates, no other data is available on inequities in stillbirths in India. There is an urgent need for strengthening availability and quality of stillbirth data in India on both stillbirth rates as well as the causes. There is a need to conduct additional research to know the timing of the stillbirths, causes of death and actual burden. India needs to strengthen stillbirth audits along with registry to find out the modifiable factors and delays for making country specific preventive strategies. The policy makers, academic community and researchers need to work together to ensure accelerated and equitable reduction in stillbirths in India.

An Analysis of Cause of Stillbirth in a Tertiary Care Hospital of Delhi: A Contribution to the WHO SEARO Project

Background

Over 98% of the world's total stillbirths are believed to occur in developing countries and still have received very little research, programmatic or policy attention.

Aims and Objective

To collect data on epidemiological profile of cases experiencing stillbirths, to assess the associated antenatal high risk factors present and to find out the probable cause of stillbirth.

Materials and Methods

This was a cross-sectional, observational study, which was done as part of WHO SEARO project after ethical clearance. The study included all stillbirths which occurred in the hospital during the study period August 2015-February 2017. Antenatal records were reviewed; maternal investigations were done. Baby was examined after delivery. Pre-structured pro forma was filled for every case. Finally, the relevant condition found was classified under CODAC system of stillbirth classification.

Result

Out of 20,580 deliveries, 600 (2.9%) were stillborn. Maternal cause was noted in 145/600 (24.2%) cases, fetal cause was noted in 181/600 (30.2%), and placental and cord origins were suspected in 128/600 (21.3%) and 12/600 (2%) cases, respectively. In 72/600 (12.0%) cases the reason for stillbirth was unknown and unclassifiable. Among the maternal causes the most common was hypertension (89/600, 14.8%) followed by infection including fever (5.7%); the most common infection was hepatitis. Among the fetal causes birth defect was the most common (106/600, 17.7%) followed by extreme prematurity in 42/600 (7.0%).

Conclusion

Birth defects were the most important fetal cause of stillbirth; hypertension in pregnancy and fetal growth restriction were important associated factors.

Classification of causes and associated conditions for stillbirths and neonatal deaths

Accurate and consistent classification of causes and associated conditions for perinatal deaths is essential to inform strategies to reduce the five million which occur globally each year. With the majority of deaths occurring in low- and middle-income countries (LMICs), their needs must be prioritised. The aim of this paper is to review the classification of perinatal death, the contemporary classification systems including the World Health Organization's International Classification of Diseases - Perinatal Mortality (ICD-PM), and next steps. During the period from 2009 to 2014, a total of 81 new or modified classification systems were identified with the majority developed in high-income countries (HICs). Structure, definitions and rules and therefore data on causes vary widely and implementation is suboptimal. Whereas system testing is limited, none appears ideal. Several systems result in a high proportion of unexplained stillbirths, prompting HICs to use more detailed systems that require data unavailable in low-income countries. Some systems appear to perform well across these different settings. ICD-PM addresses some shortcomings of ICD-10 for perinatal deaths, but important limitations remain, especially for stillbirths. A global approach to classification is needed and seems feasible. The new ICD-PM system is an important step forward and improvements will be enhanced by wide-scale use and evaluation. Implementation requires national-level support and dedicated resources. Future research should focus on implementation strategies and evaluation methods, defining placental pathologies, and ways to engage parents in the process.