The subject of the present research was the identification of factors that can lead to EMCS or ELCS in Greek women. Despite the worldwide interest in this topic, this is the first research to have used data froma group of postpartum women to identify and explore factors associated with emergency or elective Cesarean deliveries and the complication rate that may occur as a result of the surgery. The data from the major university hospital in Greece revealed an increasing rate of CS deliveries driven by increases in both EMCS and ELCS. In EMCS (the majority of which are primary), more subjectively defined indications were the abnormal heart rate during delivery, failure of labor to progress, abnormal fetal position and preeclampsia, while in ELCS the most common subjective causes were previous CS and the mother’s wish, including fear of vaginal delivery, lack of cooperation during delivery and IVF pregnancies.
More specifically, the results show that for the 6-month period, the CS rate was 58% of total births; 36% ELCS and 22% EMCS (Fig. 1). The current study revealed that the key factor affecting the mode of birth is the woman’s place of residence. Although in several studies which investigated the CS socio-demographic factors have shown the maternal age, the educational and the financial level as key factors[22], in this research living in rural areas seems to be a determining factor for ELCS. A possible explanation for this phenomenon could be the obstacles in accessing organized obstetrical health care services for women living in rural areas that creates a sense of insecurity in women and physicians and, therefore, leads to a planned CS delivery, compared to women living in urban areas.
The findings show that the increased CS rates are mainly due to a change in the risk profile of the mothers and babies. More specifically, although a previous CS does not necessarily mean a scheduled CS in next pregnancy[16,23], the ELCS rates of our findings were 66.1% for women with a previous CS, while in Germany it is just under 24%[14]. This phenomenon may perhaps be explained by the obstetrician’s increasing fear to avoid the risk of uterine rupture. However, in a paper published by Vandenberg in 2016, the estimated prevalence of uterine rupture in women with a previous CS was 3.6 per 10,000 deliveries[24].
The past gynecological history of women seems to have influenced the obstetricians’ decision for a planned caesarean section, probably due to previous abdominal surgeries; therefore, believing that these women should not attempt a vaginal delivery. In addition, the literature shows that women with a heavy medical history[25] are also more likely to have an ELCS and the findings of our study are in agreement. Furthermore, there is no sufficient evidence for ELCS in the relevant literature pertaining to short-sightedness, which was a risk factor for ELCS in this research[26].
In our research, the ELCS rates appear to be affected by the type of conception. Pregnant women after IVF conception show a significant higher rate of ELCS compared to women with the same characteristics who conceive naturally. Precious pregnancies of women with IVF conception, a high risk of placenta accreta[27] and, in some cases, the maternal age[28] constitute factors for ELCS in contrast with women with natural conception.
Several studies have shown that women with a history of anxiety disorder or depression, with or without psychiatric treatment, are more likely to be unable to cooperate during delivery or exhibit tokophobia and prefer in some cases ELCS. It has also been shown that in women with tokophobia the first two stages of labour are prolonged by 30% resulting in increased medical interventions and medication, fetal difficulties and EMCS[29], which has been shown to be responsible for a large percentage of postpartum posttraumatic stress disorder[30]. In our study, women with anxiety disorder or depression were more likely to have an EMCS, confirming the above findings and revealing a deficit in perinatal mental health in Greece, due to a deficit in mental health services, lack of health professionals’ appropriate training in addition to the stigma of mental illness which is a deterrent to access appropriate mental health services in Greece[31].
Women with oligohydramnios/ hydramnios and placenta previa were more likely to have a scheduled CS, in relation to women who did not face such problems. In a study published in 2013, polyhydramnios was associated with increased risk of CS due to suspected fetus macrosomia. Polyhydramnios is also associated with increased rate of maternal diabetes mellitus, fetal genetic syndromes or malformations, premature rupture of membranes, abnormal fetal presentation or cord prolapse and postpartum hemorrhage[32]. For all these reasons, such pregnancies are considered high risk and are usually planned for ELCS in Greece. On the other hand, placenta previa rates have increased and are likely to continue to increase as a result of CS deliveries. The aim of ELCS is to secure the safest route of delivery, to avoid the anticipated risks of bleeding that could occur during vaginal delivery due to the position of the placenta. These complications resulting from the above pregnancy conditions would pose a greater risk compared to a routine ELCS[33].
Another important factor associated with EMCS in this research is low preterm delivery (32–36, 6 weeks). Women who gave birth during these weeks were more likely to undergo an EMCS, especially when there was an underlying pregnancy pathology[34]. In Greece, the meaning of emergency does not really apply because the term EMCS includes cases of relevant medical indications, i.e. a previous CS is a relevant and not an absolute indication such as hemorrhage, preeclampsia, pathological Doppler, leading in most cases again to a Cesarean delivery, while the VBAC is almost not used at all. In general, an individual approach to assessing the urgency for surgery (in 30 min.) must be implemented[35]. In addition to prematurity, EMCS is also associated with a greater likelihood of complications after surgery. CS is a major surgery with high morbidity rates; however, the urgent nature of surgery after obstetric complications (eg, bleeding, preeclampsia, sepsis) seems to be related to postoperative complications. In contrast with our results, a retrospective study published in 2005 suggests that the risk of postoperative complications in cases of repeated ELCS seems to be higher[36].