Retrograde Flow in the  Aortic Isthmus: Trigger to Deliver Growth Restricted Fetuses Between 30 and 34 Weeks of Gestation?

ConclusionRetrograde blood flow in the  AoI is associated with adverse perinatal outcome, particularly intrauterine fetal demise, neonatal death, Respiratory Distress Syndrome (RDS) and increased duration of Neonatal Intensive Care Unit (NICU) stay. Even if DV flow is normal, adverse outcome might be suspected in fetuses with AEDF/RED F in the UA and retrograde flow in the AoI. Consequently, retrograde flow in the AoI might be considered as an additional trigger for delivering FGR fetuses at 30–34 weeks with AREDF in the UA. Larger longitudinal studies are, however, required to vaidate this.
Source: Journal of Fetal Medicine - Category: Perinatology & Neonatology Source Type: research