Research Article

Fetal Intervention in Right Outflow Tract Obstructive Disease: Selection of Candidates and Results

Table 2

Echocardiographic data before and after prenatal pulmonary valvuloplasty for PA/CS-IVS.

CaseCHD GA at diagnosis/
at FCI, weeks
Before FCIAfter FCIOutcome
At 2-4 weeksAt 6–8 weeks
-scoreRV/LV ratioFlow -scoreRV/LV ratioFlow -scoreRV/LV ratioFlow
TVPVPAADDVTRTR, m/sTVPVPAADDVTRTR, m/sTVPAPAADDVTRTR, m/s

1CS-IVS23/25−0.6−2.42.30.67RvRvSv2.41.0−1.41.60.64AtAtSv21.51.51.00.71RvRvNot Sv2.8Alive and well
Biventricular circulation
2CS-IVS22/25−1.00.21.70.44RvRvSv3.1−1.6−0.20.70.56AtAtNot Sv1.5−1.70.92.50.56AtAb/RvNot Sv2.8Postnatal death
3CS-IVS21/26−0.3−3.4−0.90.53RvRvSv20.1−1.9−0.70.54MxRvSv2−3.4−3.6−1.20.57MxRvNot Sv2Postnatal death
4PA-IVS21/24−4.4−1.9−0.90.51RvRvSv1.5−1.60.0−1.50.63MxRvSv2.4−2.7−1.4−0.90.52MxRvSv1.4Alive and well One
and a half ventricle repair

CHD: congenital heart defect; GA: gestational age; FCI: fetal cardiac intervention; TV: tricuspid valve; PV: pulmonary valve; PA: pulmonary artery; RV/LV ratio: ratio between the length of both ventricles, measured in early systole in the four-chamber view; AD: arterial duct; DV: ductus venosus; TR: tricuspid regurgitation (it was considered severe—Sv—if it was of holosystolic, reaching the wall of the right atrium. Otherwise, it was considered not severe—Not Sv); Rv: reversed; At: antegrade; Mx: mixed; Ab: absent.