Block success rates were similar ( AC group , @/@ -LSB- @ % -RSB- vs Peri-SBDGA group , @/@ -LSB- @ % -RSB- ; P = @ ) , as were median -LSB- interquartile range -RSB- onset times ( AC group , @ -LSB- @-@ -RSB- min vs Peri-SBDGA group , @ -LSB- @-@ -RSB- min ; P = @ ) .