The rationale behind suturing the hole is that the amniotic membrane does not close itself, rather you are relying that the uterus closes over the hole in the amniotic membrane, which may or may not happen, as well as in fetoscopic surgery for another condition, myelomeningocele. Published data has shown that maternal laparotomy to suture closure of the port site at the time of fetoscopic surgery leads to improved pregnancy outcomes, later gestational age at delivery, and lower rates of preterm pre-labor rupture of membranes (PPROM) \[PMID: 28910784\].
