Clinical Study
Prenatal Detection of Congenital Heart Diseases: One-Year Survey Performing a Screening Protocol in a Single Reference Center in Brazil
Table 3
Reasons for fetal heart screening and frequency of congenital heart disease.
| | Reasons for screening* | Normal heart () | Abnormal heart () | Total () | CHD among referral reason |
| | Maternal indications | 180 | 3 | 183 (67%) | 3/183 (1.6%) | | Advanced maternal age (≥35 yo) | 51 | 1 | 52 (19%) | 1/52 (1.9%) | | History of CHD | 26 | 2 | 28 (10%) | 2/28 (7.1%) | | Preexisting metabolic disease | 81 | 1 | 82 (30%) | 1/82 (1.2%) | | Infections | 11 | — | 11 (4%) | — | | Teratogen exposure | 4 | — | 4 (1.4%) | — | | Others | 7 | — | 7 (2.5%) | — | | Fetal indications | 66 | 24 | 90 (33%) | 24/90 (26.7%) | | Cardiac abnormality/dysrhythmia | 10 | 19 | 29 (10.7%) | 19/29 (65.5%) | | Extracardiac abnormality | 39 | 7 | 46 (17%) | 7/46 (15%) | | Central nervous system | 25 | 3 | 28 (10.3%) | 3/28 (10.7%) | | Abdominal wall defect | 2 | 1 | 3 (1%) | 1/3 (33%) | | Diaphragmatic hernia | — | 1 | 1 (0.4%) | — | | Functional renal agenesis | 6 | 1 | 7 (2.5%) | 1/7 (14%) | | Others | 6 | 1 | 7 (2%) | — | | Intrauterine growth restriction | 3 | — | 3 (1%) | — | | Others | 14 | — | 14 (5.1%) | — |
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Some cases had one more indication. CDH: congenital heart disease; yo: years old.
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