The scores of PRI , VAS and PPI after treatment were all improved significantly in the two groups ( all P < 0.05 ) , in which , the results in the group A were better than those in the group B ( PRI : 4.00 + / - 0.97 vs 5.44 + / - 1.16 , VAS : 3.29 + / - 0.72 vs 3.87 + / - 0.81 , PPI : 1.07 + / - 0.74 vs 1.64 + / - 0.90 , all P < 0.05 ) .