Myofascial trigger points in cluster headache patients: a case series

Head & Face Medicine

Table 2 Number of trigger points and results of anaesthetic trigger points injections

Patient	Number and location of TrPs*	Abortive injection	Preemptive injection	Prophylactic injection: mean decrease in attacks' frequency	# of injections/time (months)
1	1: (R) T	N/D	effective	------	3
2	2: (L) P, T	effective	N/D	------	6
3	4: (B) B, EP	effective	effective	------	10
4	2: (R) SO, T	N/D	N/D	------	3
5	4: (B) SO, T	N/D	N/D	50%	24/7
6	6: (B), EP, M, T	N/D	N/D	100%**	12/3
7	9: (L) A, EP, F, P, R, ST, S, T	effective	effective	100%	32/8
8	5: EP, M, P, SD, T	N/D	not effective	no change	24/6
9	3: (L) SD, (B)T	not effective	effective	50%	17/4
10	4: (B) SO, T	N/D	N/D	90%**	24/3
11	1: (L) EP	effective	effective	100%	14/1
12	4: (L) EP, F, N, P, T	effective	effective	90%	14/1

*: A angular, B buccinator, EP external pterygoideus, F frontalis, M masseter, N nasalis, P procerus, R rhomboid, S sternocleidomastoid, SD superior digastric, SO suboccipital group, ST superior trapezius; T temporalis; letters between parenthesis indicate laterality. N/D: not done; **: required a change in the prophylactic drug therapy

ISSN: 1746-160X