Parameters | Present study | Verkerk et al. [ [16]] | Tüysüz et al. [ [15]] | |
---|---|---|---|---|
Ind IV:3 | Ind IV:4 | |||
Gender | M | M | 3F/2M | 3F/1M |
Age at last examination (y.) | 14 | 12 | 1.5/21/22/23/24 | 2.5/10.5/11/17 |
Head circumference | −2SD | −2SD | −1 to −2.5 SD | −2 to −4 SD |
Height (cm) | 157 | 137 | NA | NA |
Intellectual disability | Severe | Severe | Severe in 5/5 | Severe in 3/4 |
Seizures | + | - | - | + |
Shy character | - | - | + | + |
Aggressive behavior | + | + | - | - |
Stereotype laughter | - | - | + | + |
Severe speech disorder | + | + | + | + |
Infantile hypotonia | + | + | + | + |
Hypertonia | + | + | + | + |
Hyperreflexia | + | + | NA | NA |
Babinski sign | + | + | + | NA |
Spasticity | + | + | + | + |
Club feet | - | - | + | + |
Independent walking (y.) | 2 | 4 | - | +/− |
Ambulation | - | - | - | - |
Craniofacial features | Â | Â | Â | Â |
Facial hypotonia | - | - | NA | + |
Bitemporal narrowing | - | - | NA | + |
Broad nasal bridge | - | - | NA | + |
Bulbous nose | - | + | NA | + |
Short philtrum | + | + | NA | + |
Brain MR imaging | Yes | No | 3/5 | 4/4 |
Widened lateral ventricles | + | Â | + | + |
Thin splenium of the CC | + | Â | + | + |
Cerebellar hypoplasia/atrophy | + | Â | 2/3 | - |