Results: The procedure time (9.82 ± 4.55 vs 14.73 ± 4.73 min), the onset of sensory (6.15 ± 1.60 vs 9.92 ± 2.88 min) and motor block (7.95 ± 1.05 vs 12.63 ± 2.15 min) in group I were significant shorter than in Group II (p < 0.05).