Phenotype details |
uneventful pregnancy, born at term, weight 2755 g, length 49 cm, OFC 37 cm; 1w-muscular weakness; 2m- microcephaly (<3rd percentile), generalized muscular hypotonia, ECG mild hypertrophic cardiomyopathy; metabolic acidosis, elevated lactate level; MRI brain 3m-normal; progressive developmental delay, persistent microcephaly, deafness; chronic feeding difficulties; epilepsy (West-syndrome); 5y-microcephaly, deafness, severe psychomotor retardation, moderate left ventricular hypertrophy |