Bupivacaine-dexmedetomidine versus bupivacaine-nalbuphine in ultrasound-guided supraclavicular brachial plexus block: a prospective, randomized, double-blind study

Ain-Shams Journal of Anesthesiology

Table 3 Sedation level in the studied three groups

Variable	Group BD	Group BN	Group BS	P value
T₀ (basal)	1 (1–2)	1 (1–2)	1 (1–2)	0.987
T₁ (after 30 min)	2 (1–3)*	2 (1–3)*	1 (1–2)	0.029
T₂ (after 60 min)	2 (1–3)*	2 (1–3)*	1 (1–2)	0.032
T₃ (after 90 min)	2 (1–3)*	1 (1–2)	1 (1–2)	0.028
T₄ (after 2 h)	2 (1–3)*	1 (1–2)	1 (1–2)	0.031
T₅ (after 3 h)	2 (1–3)*	1 (1–2)	1 (1–2)	0.033
T₆ (after 4 h)	2 (1–3)*	1 (1–2)	1 (1–2)	0.035
T₇(after 5 h)	2 (1–3)*	1 (1–2)	1 (1–2)	0.036
T₈ (after 6 h)	2 (1–3)*	1 (1–2)	1 (1–2)	0.038

*slight statistical significance
Data are represented as median (range). T₀: sedation level by the end of injection of local anesthetic. T₁–T₄: sedation level as evaluated every 30 min for 2 h. T₅–T₈: sedation level evaluated every 1 h for the next 4 h. Kruskal-Wallis test was used. P value < 0.05 is statistically significant