Objective To explore the effect of modified Blynch suture in the treatment of perilous placenta previa and its effect on ovarian function. Methods A total of 240 patients with dangerous placenta previa who were admitted to third affiliated hospital of the army medical university from December 2010 to December 2017 were selected and divided into the control group and the observation group according to different surgical methods

with 120 cases in each group.The patients in the control group were treated with conventional therapy

while those in the observation group were treated with modified Blynch suture.The surgical results

placenta implantation

hysterectomy and neonatal asphyxia

treatment efficiency and ovarian function of the two groups were observed and compared. Results The effective rate of the observation group was significantly higher than that of the control group(P<0.05).Length of hospital stay

operation time

intraoperative bleeding volume

postoperative bleeding volume in the observation group was lower than those of the control group (P<0.05).There was no significant difference in placenta accreta

neonatal asphyxia and the incidence of hysterectomy between the two groups(P>0.05).There was no significant difference in AMH

E2

LH and FSH levels between the two groups before treatment(P>0.05)

but after treatment

these levels in the observation group were significantly lower compared with those of the control group (P<0.05). Conclusion The modified Blynch suture is more effective in the treatment of perilous placenta previa.It can significantly reduce the amount of vaginal bleeding

improve the ovarian function and shorten the recovery time of patients.