Table 2

Short term and long term published treatment results of Dysport and long term published treatment results of Botox in hemifacial spasm

Type of botulinum toxin	Authors	Type of study	Follow up (y)	Patients (n)	Stopped treatment (n)	Treatments (n)	NC	NC (n)	Mean dose (units)	Response rate (%)	PI	DI (months)	Long term results	Side effects (%)
Botos	Dutton et al 26	Long term	4	60	—	148	—	—	—	96.8	—	3.60	—	23
	Taylor et al 27	Long term	—	130	—	336	12	7	—	98	—	4.23	Sustained	32
	Flanders et al 28	Long term	8	65	14	—	12	9	34	100	—	4.06	Sustained	8
Dysport	Elston2	Short term	—	6	—	—	—	—	60	100	—	3.57	—	—
	Chong et al 9	Short term	—	25	—	—	—	—	—	100	—	—	—	40
	Yu et al 10	Short term	—	12	—	76	—	—	148.8^2-151	94.7	—	2.52	—	92
	Elston^2-150 11	Long term	7	73	—	—	—	—	120–160	75	—	2.80–3.50	—	19–33
	Bergh et al 8	Long term	5	40	12	144	—	—	53	100	90	4.93	—	22
	Jitpimolmard et al this paper	Long term	7	175	17	883	21	21	92	97	77.2	3.4	Sustained	29

PI=peak improvement, NC=number of patients in subgroup who had completed certain number of treatments; NC (n)=number of treatments which subgroup of patients has completed; DI=duration of improvement; —= not available.
↵2-150 42 of 73 patients have been reported in 1988 and all 73 patients have been reported in 1990.
↵2-151 In the original report the dose was too low, we performed a new calculation based on weight of toxin; 1 month=4.28 weeks.