Benefits of prenatal-versus-postnatal repair by imaging
| Prenatal Repair Group (n = 32) | Postnatal Repair Group (n = 70) | |
|---|---|---|
| % of fetal grade 3 Chiari II malformation that remained grade 3 postnatally | 11.5% (3/26) | 65.5% (36/55) |
| % of fetal grade 3 Chiari II malformation that improved or resolved postnatally | 88.5% (23/26) | 34.5% (19/55) |
| % of fetal grade 2 Chiari II malformation that resolved postnatally (grade 1) | 100% (6/6) | 28.6% (2/7) |
| % that had a ventricular shunt catheter on postnatal MRI | 3.1% (1/32) | 47.1% (33/70) |