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Table 5 Clinical recommendations for terminal 6q deletions

From: The phenotypic spectrum of terminal 6q deletions based on a large cohort derived from social media and literature: a prominent role for DLL1

Deletion size

 < 7.1 Mb

 > 7.1 Mb

Upon diagnosis

Follow-up

Upon diagnosis

Follow-up

Full neurological examination, including balance

 + 

i

 + 

i

  MRI

i

i

i

i

Be aware of seizures

 + 

 + 

 + 

 + 

  EEG

i

i

i

i

Be aware of abnormal pain sensation

 + 

 + 

 + 

 + 

Vision assessment, including strabismus

 + 

a/i*

 + 

a/i*

  Be aware of coloboma/optic nerve hypoplasia

  

 + 

 

Hearing assessment

i

i

i

i

Cardiac ultrasound

 + 

i

 + 

i

Be aware of sleep apnoea

  

 + 

 + 

Be aware of cleft (soft) palate

  

 + 

 

Dental abnormalities

 + 

i

 + 

i

Assess feeding problems, including reflux and constipation

 + 

i

 + 

i

  Be aware of anal atresia

  

 + 

 

Renal ultrasound

i

i

i

i

Be aware of recurrent respiratory tract infections

 + 

 + 

 + 

 + 

Be aware of scoliosis

 + 

 + 

 + 

 + 

  X-ray to exclude vertebral abnormalities

i

i

 + #

i

Be aware of joint hypermobility

 + 

 + 

 + 

 + 

  Including hip dysplasia

 + 

i

 + 

i

Assess development

 + 

i

 + 

i

Be aware of sleeping problems

 + 

 + 

 + 

 + 

Assess behavioural problems

 + 

i

 + 

i

  1.  +  = to be performed, a = annual, i = upon indication
  2. *Annually at young age and upon indication at later ages
  3. #Also be aware of spina bifida occulta