Abstract
Objective. To assess the rate of maternal complications related to cesarean section (CS) and to compare morbidity between elective, emergency and crash-emergency CS. To establish risk factors associated with maternal CS morbidity. Design. A prospective multicenter cohort study. Setting. Twelve delivery units in Finland. Population. Women delivering by CS (n = 2,496) during a 6 months period in the study hospitals. Methods. Data on pregnant women, CS, and maternal recovery during the hospital stay was collected prospectively on report forms. The complication rates by different CSs were calculated, and factors associated with morbidity were analyzed by odds ratios (OR). Main outcome measures. Maternal complication rates in different types of CS. The association of risk factors with morbidity. Results. About 27% of women delivering by CS had complications; 10% had severe complications. The complication rate was higher in emergency CS than in elective CS, and highest in crash-emergency CS. Significant independent risk factors for maternal morbidity were emergency CS and crash-emergency CS compared to elective CS (OR 1.8; 95% confidence interval (CI) 1.5–2.2), pre-eclampsia (OR 1.5; CI 1.1–2.0), maternal obesity (OR 1.4; CI 1.1–1.8) and maternal increasing age (OR 1.1; CI 1.03–1.2 per each 5 years). Conclusions. Maternal complications are frequent in CS, and although performing CS electively reduces the occurrence of complications, the frequency is still high. The complication rate depends on the degree of emergency, and increases with maternal obesity, older age and pre-eclampsia.
Acknowledgements
The authors thank Anu Hänninen, MD, Kuopio University Hospital; Terhi Saisto, MD, PhD, Jorvi Hospital; Henna Kärkkäinen, MD, Central Finland Central Hospital; Katja Kero, MD, Central Hospital of Seinäjoki; Anu Nieminen, MD, Päijät-Häme Central Hospital; Aila Junnikkala, MD, Central Hospital of Satakunta; Ulla Korhonen, MD, North Karelia Central Hospital; Päivi Galambosi, MD, Helsinki University Central Hospital; Pamela Hellevuo, MD, Jorvi Hospital; for helping in data collection in the participating hospitals.
Declaration of interest: None of the authors have any conflict of interest.