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. 2019 Aug;5(4):a004200. doi: 10.1101/mcs.a004200

Table 2.

Clinical features of the new (n = 10) and previously reported cases (n = 24)

New individuals included in this report Average for new individuals in this report Summary of previously reported cases
Individual ID 1 2 3 4 5 6 7 8 9 10 n = 10 n = 25
Age 57/12 yr 14/12 yr 15 yr 710/12 yr 9 yr 1210/12 yr 94/12 yr 12 yr 153/12 yr 35/12 yr 92/12 yr (16 mo-15 yr) 18 yr (5–52 yr)
Sex F M F F F M F M M M F:M = 5:5 F:M = 14:11
Prenatal issues None IUGR
Placental insufficiency
Maternal hypertension
Nuchal and arachnoid cysts (resolved in utero)
LGA
Maternal diabetes
LGA
None None None LGA
macrocephaly
None Unilateral ureterocele 50% 37.5%
Neonatal issues Feeding difficulty Feeding difficulty
GERD
PPHN of the newborn
Feeding difficulty
Jaundice
Hypotonia
Lethargy
Jaundice
None Hypotonia Feeding difficulty
Jaundice
Feeding difficulty
Respiratory distress (required resuscitation)
Feeding difficulty
Hypotonia
Feeding difficulty
Hypotonia
Congenital muscular torticollis
Feeding difficulty (70%)
Hypotonia (40%)
Feeding difficulty (33%)
Developmental delay Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 100% 92%
Age at sitting 9 mo Not achieved yet 13 mo 12 mo 8 mo 18 mo 6 mo 6.5 mo 9 mo 20 mo 11.3 mo (n = 9) Not available for all patients
Age at walking 12 mo Not achieved yet 19 mo 24 mo 18 mo 24 mo 29 mo 28 mo 24 mo 36 mo 23.8 mo (n = 9) Not available for all patients
Age at talking 36 mo 9 mo Normal range 36 mo 9 mo Normal range 48 mo Delayed 42 mo Does not speak in sentences yet 30 mo (n = 6) Not available for all patients
Intellectual disability Yes, mild & hyperlexia Yes Yes, mild Yes, mild Yes, mild Yes, mild Yes, mild Yes, mild Yes, mild Yes 100% 92%
Full scale IQ n/a n/a 73 68 n/a 60 50-60 n/a n/a n/a n/a
Vineland Overall Age (%) 16% 3% 19% 1% 8% 5% 2% 5% 1% n/a 6.7% n/a
Communication (%) 42% 9% 23% 3% 8% 14% 2% 4% 1% 11.8%
Daily living skills (%) 16% 2% 50% 1% 19% 4% 4% 16% 1% 12.6%
Socialization (%) 2% 12% 5% 1% 5% 5% 2% 5% 1% 4.2%
Motor(%) 50% 1% - 2% - - - - - 18%
Behavioral problems ASD
Attention problems
SPD
None ASD features
ADHD
GAD
Tantrums
Impulse problems
SPD
Tics
Trichotillomania
ASD features
Social anxiety
Tantrums
Impulse problems
ADHD
GAD
Tantrums
Impulse problems
SPD features
ASD
ADD
Tantrums
Anxious in new situations
ASD
ADHD
GAD
PTSD
Tantrums
Impulse problems
SPD features
Tics
ADD
GAD/depression
Tantrums
Impulse problems
SPD features
ASD
ADHD
OCD
Phobias
Tantrums
SPD features
Enuresis nocturna
None 88% 84%
Sleep problems Yes No Yes No No No No No Yes No 30% 24%
Dysmorphic features High forehead
Anteverted nares
Long and smooth philtrum
High forehead
Almond shaped eyes
Long and smooth philtrum
Thin lips
High forehead
Synophrys
Hypertelorism
Almond shaped eyes
Thick helices and earlobes
Anteverted nares
Thin lips
Clinodactyly of 5th finger
CAL
High forehead
Hypertelorism
Almond shaped eyes
Thick helices and earlobes
Short nose and broad nasal tip
Thin lips
Clinodactyly Syndactyly of 2-3 toes
CAL Hemangioma
High forehead
Hypertelorism
Thick helices and earlobes
Thin lips
Clinodactyly of 5th finger
Syndactyly of 2-3 toes
High forehead
Synophrys
Almond shaped eyes
Large ears
Anteverted nares
Short nose and broad nasal tip
Long and smooth philtrum
High forehead
Large ears
Thin lips
Clinodactyly of 5th finger
Large ears
Clinodactyly of 5th finger
CAL
Almons shaped eyes
Large ears
Thin lips
CAL
Low-set posteriorly rotated ears with thick helices
Arched eyebrows
Synophrys Full and long eyelashes
Epicanthus
Anteverted nares
Long philtrum
Tongue-tie
Transverse palmar crease
Sacro-coccygeal dimple without medullar abnormality on MRI
Facial features (100%)
Other
(60%)
Facial features (96%)
Other
(79.2%)
Neurologic problems None Hypotonia Hypotonia
Abnormal gait
Hypotonia
Focal impaired awareness
Difficulty walking
Dysautonomia
Hand tremors
Truncal hypotonia
Extremity hypertonia
None Truncal hypotonia
Hypertonia of hands
Hypotonia
A single seizure event at 18 mo old
Hand tremors
Hypotonia
Suspected seizure activity (generalized tonic-clonic)
Chorea of limbs
Migraine
Hypotonia
Febrile seizures
Reduced white matter volume
Cerebellar hypoplasia
Hypotonia (80%)
Seizures (20%)
Hypotonia (32%)
Musculoskeletal problems None None Easily fatigued Hypermobile joints Easily fatigued
Hypermobile joints
Easily fatigued Easily fatigued
Pes planus
Easily fatigued
Pes planus
Easily fatigued
Pes planus
Easily fatigued
Hypermobile joints
Unilateral genu recurvatum Fatigue (70%) Fatigue (40%)
Gastrointestinal problems None GERD (severe) Constipation Constipation (severe)
GERD
Constipation
GERD
Constipation Constipation (resolved) Constipation Diarrhea Constipation
GERD
None Constipation (70%)
GERD (40%)
Constipation(8%)
GERD (4%)
Endocrine problems None Subclinical hypothyroidism Borderline overweight (BMI = 23.9, z-score = 1)
Delayed bone age
Delayed menarche
Obesity (BMI = 30.6, z-score = 2.71) None Unilateral cryptorchidism Recent rapid weight gain None Overweight (BMI = 23.9, z-score = 1.09) None Obesity/ overweight (30%)
Other (30%)
Obesity (76%)
Other (16.7%)
Eye problems None Pale optic nerve Convergence problems Amblyopia
Myopia
Convergence problems Amblyopia
Myopia
Myopia
Astigmatism
Alternating exotropia/amblyopia
None Severe visual impairment
Unilateral legally blind
Amblyopia
Myopia
Strabismus
80% 72%
Infectious problems None None None Otitis media
Upper respiratory
None None UTI Otitis media
Upper respiratory
Otitis media
Upper respiratory TI
UTI 50% 24%

(F) Female, (M) male, (n/a) not available, (IUGR) intrauterine growth restriction, (PPHN) persistent pulmonary hypertension in the neonate, (GERD) gastroesophageal reflux disease, (LD) learning disability, (ASD) autism spectrum disorder, (SPD) sensory processing disorder, (ADHD/ADD) attention deficit (hyperactivity) disorder, (GAD) generalized anxiety disorder, (PTSD) posttraumatic stress disorder, (BMI) body mass index, (OM) otitis media, (UTI) urinary tract infection, (CAL) café au lait macule.