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[Risk of recurrence of retained placenta]
H J van Beekhuizen1, M E Vierhout
1Afd. Verloskunde en Gynaecologie, Ikazia Ziekenhuis, Rotterdam.
Objective:
To calculate the risk of recurrence of retained placenta (RP) and to investigate predisposing factors for recurrence.
Design:
Retrospective.
Setting:
Ikazia Hospital Rotterdam, the Netherlands.
Method:
Childbirths of all patients who delivered between 1986 and 1989 and who had a RP were investigated and analysed.
Results:
A total of 134 patients with RP were included in the study. 17 of 75 patients who had given birth before had a recurrence of RP (23%). 17 of 53 patients (32%) who had a successive pregnancy had a recurrence of RP. Three of five patients with placenta accreta, had RP at the next delivery. Four patients who delivered after two successive RPs all had a third RP.
Conclusion:
The recurrence of RP was high: 32%. Placenta accreta and a history of multiple RPs appear to predispose to recurrence.