TY - JOUR T1 - CArdiac malformations in relatives of infants with hypoplastic left-heart syndrome AU - Brenner JI, Berg KA, Schneider DS, Clark EB, Boughman JA Y1 - 1989/12/01 N1 - 10.1001/archpedi.1989.02150240114030 JO - American Journal of Diseases of Children SP - 1492 EP - 1494 VL - 143 IS - 12 N2 - • In a pilot study of relatives of infants with hypoplastic left-heart syndrome (HLHS), we obtained a medical history, cardiovascular examination, and echocardiogram in 48 first-degree relatives of 11 probands with isolated HLHS and 3 with HLHS and noncardiac malformations. Echocardiography confirmed heart defects in 5 of 41 relatives of patients with isolated HLHS. In four instances, the cardiac abnormality was unrecognized. Among 7 relatives of infants with HLHS and extracardiac anomalies, no heart defects were detected. Cardiac defects occurred in first-degree relatives of probands at a frequency higher than previously predicted by an additive multifactorial model of inheritance. These findings suggest that first-degree relatives of HLHS probands may have an increased risk for subclinical cardiac defects and that genetic factors likely contribute to the cause of left-heart blood-flow lesions.(AJDC. 1989;143:1492-1494) SN - 0002-922X M3 - doi: 10.1001/archpedi.1989.02150240114030 UR - http://dx.doi.org/10.1001/archpedi.1989.02150240114030 ER -