Premature rupture of membranes, placenta increta, and hysterectomy in a pregnancy following endometrial ablation.

Endometrial ablation has become a popular method of managing menorrhagia. Pregnancy after endometrial ablation has a high rate of complications. We present the case of a parous woman with a history of endometrial ablation with preterm premature rupture of membranes. Despite the absence of established sonographic markers for abnormal placentation, placenta accreta was noted at the time of cesarean delivery. In women with history of endometrial ablation, the endometrium is not normal and may allow for more aggressive placental invasion or adherence. Consequently, the sonographic indices described for evaluating placenta accreta may not be present. We believe that placentation in women with prior endometrial ablations should be considered extremely high risk for placenta accreta or increta and managed accordingly when preparing for delivery.