This study investigated perinatal outcomes of pregnancies involving an emergency cervical cerclage using absorbable monofilament polydioxanone sutures, a thin thread that protects against bacterial infection.

We performed a chart review of patients who underwent emergency McDonald cerclage with polydioxanone sutures at our institution. Gestational age at delivery, duration between cerclage and delivery, and neonatal prognosis were evaluated as primary outcomes. 

Among the 23 patients evaluated, ultrasound-indicated (progressive cervical length shortening) were eight (35%), and physical examination-indicated (fetal membranes that prolapsed into the vagina or dilated cervix) were 15 patients. Extremely preterm delivery before 28 weeks of gestation occurred in four cases. Researchers achieved Full-term delivery in 10 (42%) cases. The duration between cerclage and delivery ranged from 5 to 136 days. Except for one case of spontaneous abortion, all newborns survived till hospital discharge. 

The study concluded that although our series included some patients at high risk for spontaneous abortion and preterm delivery, satisfactory prolongation and favorable neonatal outcomes were achieved for most patients using absorbable monofilament sutures, thus suggesting the efficacy of this type of suture for emergency cervical cerclage.