TABLE 1.

Demographic data of patients with dystonia

No.	Age	Sex	Onset *	Clinical features	Drugs ever used
WC-1	54	M	47	Flexion of the fingers and wrist, ulnar deviation of the wrist, pain, tremulous writinga	Oxa, Tri, Clo, Bac, Cbz, BTX
WC-2	29	F	21	Flexion of the fingers and wrist, shoulder elevation, tremulous writinga, pain	Tri., Clo, Cbz, BTX; Pro
WC-3	39	F	35	Flexion of the thumb, index and middle fingers, shoulder elevation, tremulous writinga	Tri, Clo, BTX, Bez
WC-4	57	F	44	Tightly holding the pen; flexion of the fingers and wrist; pronation of the wrist, pain	Cbz, Clo
WC-5	50	M	43	Difficulty in initiation of writing, flexion of the thumb, index fingers, nibs darting, pain	Tri, Cbz, Clo, BTX
WC-6	51	M	46	Difficulty in holding the pen w, flexion of the wrist; adduction of the elbow	Tri, Clo, Cbz, Bez
WC-7	45	M	27	Involuntary clenching and open the fist, extension and abduction of the elbow	Tri, Clo, Bez
WC-8	47	M	41	Extension with radial deviation of the wrist, supination of the elbow, tremulous writinga	Tri, Clo, Pri, BTX
WC-9	32	F	16	Flexion of thumb and index fingers, radial extension of the wrist and elbow	Tri, Clo, BTX
MDYT 1	27	M	9	Left foot focal dystonia Tri
MDYT 1	46	M	11	Generalised dystonia	Tri, Clo, Bez, Bac
MDYT 1	36	M	28	Segmental dystonia involving neck and trunk	Tri, Clo, Cbz, BTX

Oxa, oxcarbazepine; Tri, trihexyphenidyl; Clo, clonazepam; Top, topiramate; Cbz, carbamazepine; Pro, propranolol; Bez, benzodiazepam; Bac, baclofen; Pri, primidone; BTX, botulinum toxin A injection. There is no use of botulinum toxin in the past 4 months.

^*The age at onset of years.

^aDenote the abnormal posture when writing showed jerky and tremulous dystonic movement.