Table 2. Distribution of ISB application, rate of complication/side effect and satisfaction (patient/surgeon).

	n	%
ISB type and volume of local anesthetic used
Traditional ISB alone (30 mL)	140	49.1
ISB (5 mL) + STB (20 mL)	78	27.4
ISB (10 mL) + STB (20 mL)	67	23.5
Complication/side effect
Horner syndrome	96	33.68
Hoarseness	1	0.35
Respiratory distress	1	0.35
Rate of surgeon satisfaction
I would definitely prefer	279	97.9
Maybe I prefer	6	2.1
I do not prefer	0	0
Rate of patient satisfaction
I would definitely prefer	221	77.5
Maybe I prefer	58	20.4
I do not prefer	6	2.1
ISB: Interscalene block; STB: Superior truncus block.