Table 1.

Demographic characteristics of the 20 patients

Parameters	N or mean ± standard deviation (range)
Age (years)	55 ± 13,6 (25–72)
Sex (male,female)	13 vs. 7
Weight (kg)	76 ± 8,2 (68–93)
Height (cm)	172 ± 13,3 (160–185)
BMI (kg.m-2)	26.4 ± 3,1 (20–31)
ASA grade	-
II	6
III	13
IV	1

(BMI: Body-Mass-Index, ASA: American Society of Anaesthesiologists).