Comparison of Continuous and Programmed Intermittent Bolus Infusion of 0.2% Ropivacaine after Ultrasound-Guided Continuous Interscalene Brachial Plexus Block in Arthroscopic Shoulder Surgery

Table 1

Demographic data.

Characteristic	Group A (n = 32)	Group B (n = 32)
Sex (M/F)	14/18	14/18
ASA physical status (I/II)	9/23	10/22
Age (years)	57.6 ± 13.0	59.1 ± 10.0
Height (cm)	162.2 ± 10.8	160.5 ± 8.1
Weight (kg)	66.0 ± 14.0	67.2 ± 8.7
Anesthesia time (hours)	1.6 ± 0.4	1.7 ± 0.3

All measured values are presented as the mean ± standard deviation or number of patients. ASA: American Society of Anesthesiologists.