Table.

Clinical details of 15 infants with sleep myoclonus

Case	Sleep myoclonus			Rhythmic myoclonus			Electroencephalography			Neuroimaging		Treatment	Outcome
	Onset (day of life)	Age resolved		General	Focal		Between episodes	During episodes		Ultrasound	CCT/MRI
1	7	3 months		Present	Present		Normal	Normal		Normal	MRI normal	Phenobarbitone, phenytoin, diazepam	Normal
2	2	6 weeks		Present	Absent		Normal	Normal		Normal	ND	Phenobarbitone	Normal
3	4	3 months		Present	Absent		Normal	Normal		Normal	ND	Phenobarbitone	Normal
4	8	2 months		Present	Present		Normal	ND		Normal	ND	None	Normal
5	4	7 months		Present	Present		Normal	ND		Normal	ND	Phenobarbitone, phenytoin	Normal
6	7	3 years		Present	Absent		Normal	Normal		Normal	ND	Phenobarbitone, carbamazepine	Normal
7	7	4 weeks		Present	Absent		Normal	Normal		Normal	ND	None	Normal
8	5	3 months		Present	Present		Normal	ND		Normal	ND	None	Normal
9	7	6 months		Present	Present		Normal	ND		Normal	ND	None	Normal
10	7	4 months		Present	Present		Normal	ND		ND	ND	None	Normal
11	28	5 months		Present	Present		Normal	Normal		ND	ND	None	Normal
12	5	9 weeks		Present	Absent		Normal	ND		Normal	CCT normal	Phenobarbitone	Normal
13	8	4 months		Present	Absent		Normal	ND		Normal	CCT normal	Phenobarbitone	Normal
14	7	3 months		Present	Absent		Normal	ND		Normal	ND	None	Normal
15	2	3 months		Present	Present		Normal	ND		Normal	ND	None	Normal

ND = investigation not done; MRI = magnetic resonance imaging; CCT = cranial computed tomography.