[Prenatal diagnosis of fetal cardiac defect].
BACKGROUND
The prevalence of congenital cardiac defects is 8 per 1000 neonates, and it's different if high or low risk populations are studied. The fetal ultrasonographic increase prenatal detection but varies from 7 to 90%.


OBJECTIVE
To know the prevalence of fetal cardiopathy and detection in high risk pregnancies.


METHODS
A observational study was made in pregnancies women with 16 old week of gestation.


RESULTS
We received a total of 3500 high-risk pregnancies and were detected 112 cases with fetal cardiopathy (3.2%). The 30% of them had a risk factor of cardiopathy. The most frequent fetal cardiac defect detected were arrhythmia in 34 fetus, septal defects in 30, valvular defects in 17, hypoplasic or absence of cardiac cavities 16, tronco-conus defects 8, and other 7 included ectopia cordis 3, cardiac tumor 2, abnormal drainage of pulmonary veins 2. The diagnosis increased every year since started study. The prenatal diagnoses suspected in fetal echocardiography were confirmed in 80% of the cases in neonatal period.


CONCLUSIONS
The detection rate of fetal cardiac defect was 3.2% in high-risk pregnancies, four times higher than general population prevalence of congenital heart disease. We found a 30% overall perinatal mortality in fetal cardiac defect. The most frequent fetal cardiac defects found in this screening were arrhythmias and septal ventricular defects in almost 50% of patients.
Ochoa Torres
Mauro Alberto
MA
Departamento de medicina fetal, Hospital Regional de Especialidades número 23, IMSS, México.
Hernández Herrera
Ricardo Jorge
RJ
Hernández Gerardo
Jaime
J
Luna García
Sergio Arturo
SA
Padilla Martínez
Yadira Mayela
YM
D003430:Cross-Sectional Studies; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D015995:Prevalence; D016216:Ultrasonography, Prenatal