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

Calandre et al. Head & Face Medicine 2008 4:32   doi:10.1186/1746-160X-4-32