Patch vs. No Patch Fetoscopic Meningomyelocele Repair Study

The fetoscopic arm is described above. Patients who have an appropriate window (posterior placenta) and choose fetoscopic surgery will be offered the two fetoscopic options, (i) laparotomy assisted and, (ii) totally percutaneous expandable port assisted. Patients with an anterior placenta will only be offered the lapartotomy assisted approach. All patients will undergo a fetoscopic repair of the fetal open neural tube defect including a the use of a Durepair patch.