Table 1. CA 19.9 blood levels before and after the RFA procedure in group A, consisting of patients with CA 19.9 values reduced more than 10 Units.

Patients with CA 19.9 values reduced more than 10 Units	CA 19.9 values pre	CA 19.9 values post
1	504	204
2	2,697	1,561
3	2,554	1,810
4	253	207
5	156	51
6	106	30
7	1,212	979
8	277	158
9	238	117
10	649	160
11	2,555	2,000
12	599	446
13	233	144
14	2,229	185
15	266	198
16	769	176
17	234	160
18	948	39
19	39	24
20	72	59
21	253	165
22	4,843	2,650
23	163	103
24	112	102

RFA, radiofrequency ablation.