A review of the patients seen at the Department of Obstetrics at Dokkyo Uni
versity Hospital who had suffered placenta accreta/increta in the past 18 y
ears, was performed. There were 10 such cases out of 9,716 deliveries durin
g this period. This incidence is higher than that which has been reported i
n other Western countries. Forty percent of the patients in our study had p
lacenta accreta/increta accompanied by placenta previa or low lying; 30% ha
d had a prior cesarean section (C/S); 70% had previously experienced dilata
tion and curettage (D & C); 80% had previously undergone a C/S and/or D & C
; and 40% had a history of miscarriage. Three of the ten patients with plac
enta accreta/increta required a hysterectomy; 2 patients were successfully
treated with hemostatic stitches on the endometrium; and the remaining 5 mi
ld cases were treated with removal of the placenta, either manually or with
the use of forceps. There was no case of maternal death. In 2 cases, neona
tal asphyxia was noted, but the neonate immediately recovered.