Ultrasound-Guided Stellate Ganglion Block Combined with Extracorporeal Shock Wave Therapy on Postherpetic Neuralgia

Table 1

Comparison of pain degree VAS after treatment in 3 groups (X ± S).

Group	Cases	Before treatment	After treatment
			2 times	4 times	6 times
Group A	12	7.8 ± 1.3	6.8 ± 1.1^1)	5.4 ± 1.3^1)	3.1 ± 1.2^1)
Group B	12	7.9 ± 0.9	6.9 ± 0.9^1)	5.7 ± 1.3^1)	3.3 ± 1.3^1)
Group C	12	7.8 ± 1.0	6.0 ± 1.0^1)2)	4.3 ± 0.8^1)2)	1.9 ± 0.7^1)2)

Note. Compared with before treatment, 1) ; compared with different groups, 2) .