Fetal Surgery Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
polyhydramnios
Excessive accumulation of amniotic fluid, often associated with fetal anomalies or maternal conditions.
amniocentesis
Diagnostic procedure involving needle insertion through the maternal abdomen to sample amniotic fluid for fetal assessme...
amnioinfusion
Therapeutic instillation of fluid into the amniotic cavity to treat or prevent complications of oligohydramnios.
amniopatch
Surgical technique using maternal blood components to seal amniotic membrane defects and prevent fluid leakage.
amnioreduction
Therapeutic removal of excess amniotic fluid to treat severe polyhydramnios and its associated complications.
amniotic band release
Fetal surgical procedure to lyse constricting amniotic bands threatening fetal limb or digit viability.
amniotic band syndrome
Congenital disorder caused by entanglement of fetal parts in fibrous amniotic bands, resulting in deformities or amputat...
amniotic cavity access
Surgical entry into the fluid-filled space surrounding the fetus, achieved through various minimally invasive or open te...
amniotic fluid index
Ultrasound measurement technique that quantifies amniotic fluid volume by summing the deepest vertical pockets in four q...
amniotic membrane
Inner layer of fetal membranes that must be carefully managed during fetal surgical procedures to prevent rupture.
Arnold-Chiari malformation
Hindbrain herniation commonly associated with spina bifida requiring neurosurgical evaluation.
balloon occlusion
Temporary blockage of a vessel or airway using an inflatable balloon catheter to redirect flow or promote organ developm...
CCAM
Congenital cystic adenomatoid malformation, a developmental lung lesion with cystic and solid components.
cervical cerclage
Surgical suture placed around the cervix to prevent preterm delivery, often required after fetal surgery.
CHAOS
Congenital high airway obstruction syndrome, a rare condition causing severe fetal airway blockage.
CHAOS sequence
The cascade of abnormalities resulting from congenital high airway obstruction syndrome affecting multiple organ systems...
chorioamnionitis
Infection of the chorion and amnion, a serious complication that can occur following fetal surgical procedures.
chorionic villus sampling
First-trimester diagnostic procedure sampling placental tissue for fetal genetic analysis.
congenital diaphragmatic hernia
Birth defect involving incomplete formation of the diaphragm, allowing abdominal organs to enter the chest cavity.
cord occlusion
Surgical interruption of umbilical blood flow to terminate circulation in selected fetus.
cordocentesis
Percutaneous umbilical blood sampling procedure for fetal diagnosis or treatment.
CVR
CCAM volume ratio, a measurement used to predict outcomes and guide management of fetal lung lesions.
ECMO
Extracorporeal membrane oxygenation; life support system providing cardiac and respiratory support outside the body.
ex utero intrapartum treatment
Specialized delivery technique maintaining uteroplacental circulation while treating fetal conditions requiring immediat...
EXIT procedure
Ex utero intrapartum treatment performed during cesarean delivery to secure the fetal airway before umbilical cord clamp...