Table 1

Clinical summary of 17 young children with achondroplasia

Patient/sex		Age at referral		Cardiorespiratory			Neurology		Follow up (months)
Patient/sex		Age at referral		Oxygen dependency	RVH		T/A	GOR	Follow up (months)	Hydrocephalus VPS	Foramen magnum
Group 1
4/M	10	No	No	No	–	No	–	5
5/M	10	No	No	11	No	No	–	36
9/M	5	No	No	11	No	No	–	17
11/F	13	No	No	No	–	No	–	6
12/M	14	No	No	17	No	No	–	7
16/M	31	No	No	31	No	No	–	4
Group 2
3/M	3	No	No	33	No	35	FMD (8 months)	19
7/M	10	No	No	29	No	19	–	12
8/M	9	No	181-150	11	No	13	Small	17
10/M	7	No	No	9	No	Under review	Small	13
13/M	26	No	No	No	–	Under review	–	5
15/M	24	No	No	Under review	–	27	–	5
Group 3
1/M	12	12	12	No	Yes	No	Small	4 (died)
2/F	7	27	11	No	Yes	No	-	24 (died)
6/F	4	4	12	No	Yes	6	Small, FMD (5 months)	8 (died)
14/M	33	4	361-150	33	Severe	No	Small	6
17/M	42	6	421-150	No	Yes	No	Small	5

Patients have been numbered chronologically with respect to referral. Ages relate to the age of the child (in months) at the time of intervention, finding, or operation.
↵1-150 Patients with right axis deviation only.
RVH, right ventricular hypertrophy on electrocardiography; T/A, adenotonsillectomy; GOR, gastro-oesophageal reflux; FMD, foramen magnum decompression; VPS, ventriculoperitoneal shunt.