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Identifying risk factors for cesarean scar pregnancy: a retrospective study of 79 cases
Min Shi, Hui Zhang, Sha-Sha Qi
1Shandong Provincial Hospital Affiliated to Shandong University, China. cnyulanmu@126.com.
Objectives:
To explore the possible risk factors for cesarean scar pregnancy (CSP), the incidence of which is increasing rapidly in China.
Material And Methods:
79 patients with CSP and 69 non-CSP expectant mothers with at least 1 previous cesarean section were employed in the study. The obstetric histories of the participants were collected and analyzed using Chi square test.
Results:
We found that 77.2% CSP patients had ≥ 3 pregnancies and only 36.2% women had ≥ 3 pregnacies in non-CSP group. During the previous cesarean delivery, 21.5% of CSP patients had entered the first stage of labor, which was 43.5% in non-CSP group (P < 0.05). Cephalopelvic disproportion occurred in 51.9% of CSP patients, which was significantly higher than that (23.2%) in non-CSP group (P < 0.01). 11.4% of CSP patients had undergone cesarean section due to breech and shoulder presentation in the past, which was only 1.4% in non-CSP group. However, no significance was noted (P > 0.05). We did not find significant differences between the CSP and non-CSP patients in maternal age, multiple cesarean sections, gestational age, emergency or elective caesarean section.
Conclusions:
Multiple pregnancies, absence of the first stage of labor, and cephalopelvic disproportion might be the risk factors for the occurrence of CSP.
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