In Group SD , the anesthesia onset -LSB- @ ( @-@ ) vs. @ ( @-@ ) min , p < @ -RSB- and anesthesia related times -LSB- @ ( @-@ @ ) vs. @ ( @-@ @ ) min , p < @ -RSB- were significantly shorter than those of Group S. Additionally , the analgesic requirement was lower in Group SD ( @ vs. @ % , p = @ ) , while among the patients who required analgesic , the first analgesic time was longer in Group SD in comparison to Group S -LSB- @ ( @-@ ) vs. @ ( @-@ ) min p < @ -RSB- .