Maternal mortality and the rising cesarean rate

Area of Science:

• Obstetrics and Gynecology
• Public Health
• Maternal Health

Background:

• Maternal mortality remains a critical public health concern globally.
• Rising cesarean birth rates in developed nations necessitate careful monitoring of maternal outcomes.
• Assessing the safety of increasing cesarean interventions is crucial for maternity care standards.

Purpose of the Study:

• To evaluate maternal mortality trends at a major Irish maternity hospital.
• To determine the association between an increasing cesarean delivery rate and maternal deaths.
• To assess if a high cesarean rate impacts maternal mortality ratios.

Main Methods:

• Retrospective review of maternal deaths reported in the Coombe Women and Infants University Hospital's Annual Clinical Reports (1995-2009).
• Calculation of the maternal mortality ratio (MMR) defined as maternal deaths per 100,000 live births.
• Analysis of cesarean delivery rates over the 15-year study period.

Main Results:

• Over 15 years, 112,326 women delivered 114,170 infants.
• The cesarean rate significantly increased from 14.1% in 1995 to 26.5% in 2009, with an overall rate of 20.0%.
• A low maternal mortality ratio of 2.7 per 100,000 live births was observed. Two maternal deaths occurred post-cesarean, neither attributed to the procedure.

Conclusions:

• A large, specialized maternity hospital in Ireland can achieve low maternal mortality rates, meeting international standards.
• The observed increase in the cesarean delivery rate over two decades did not adversely affect the maternal mortality ratio.
• Findings suggest that increased cesarean rates do not necessarily lead to increased maternal mortality in well-managed maternity settings.