Table 1.

Patient characteristics

Characteristics	Right (n = 9)	Left (n = 14)	Overall (n = 23)
Sex, male/female	6/3	7/7	13/10
Age (years), mean ± SD	53.8 ± 16.0	62.5 ± 13.8	59.1 ± 15.3
ASA score, n (%)
2	9 (100%)	11 (79%)	20 (87%)
3	0 (0%)	3 (21%)	3 (13%)
Charlson comorbidity index, median (range)	1 (0–5)	4 (0–9)	4 (0–9)
Body mass index (kg/m2), mean ± SD	25.2 ± 4.0	31.3 ± 4.5	28.9 ± 5.2
Indication for surgery, malignant/benign	4/5	12/2	16/7
Preoperative radiotherapy, n (%)	0 (0%)	3 (21%)	3 (13%)

ASA American Society of Anesthesiologists