Perioperative factors influencing the difficulty of retroperitoneal laparoscopic adrenalectomy: a single-center retrospective study

Table 1 Clinical characteristics of the studied group

Variable	Total cohort	Operative time		P value
Variable	(n = 68)	≤ 120 min (n = 34)	> 120 min (n = 34)	P value
Age (year)	51.18 (± 11.621)	48.27 ± 11.371	54.09 ± 11.288	0.04
Sex				0.09
Male	29 (42.6)	11 (37.9)	18 (62.1)
Female	39 (57.4)	23 (59.0)	16 (41.0)
BMI (kg/m²)	24.828 (± 3.219)	24.632 ± 3.3	25.025 ± 3.173	0.6
Side				0.4
Left	45 (66.2)	24 (53.3)	21 (46.7)
Right	23 (33.8)	10 (43.5)	13 (56.5)
Pathology				0.5
NFAT	36 (52.9)	19 (52.8)	17 (47.2)
PA	11 (16.2)	6 (54.5)	5 (45.5)
CS	13 (19.1)	7 (53.8)	6 (46.2)
Others	8 (11.8)	2 (25.0)	6 (75.0)
TD (mm)	27.03 (± 11.946)	22.00 ± 7.808	32.06 ± 13.291	< 0.001
DAK (mm)	− 14.31 (± 12.577)	− 9.77 ± 12.497	− 18.86 ± 11.065	0.002
DARP (mm)	29.25 (± 10.789)	34.00 ± 9.165	24.50 ± 10.288	< 0.001

Data are presented as mean (± standard deviation) for continuous variables and as n (%) for categorical variables. Comparisons between the length of operation groups were made using the independent samples t-test for continuous variables and the χ² test for categorical variables
BMI body mass index, NFAT nonfunctioning adrenal tumor, PA primary aldosteronism, CS Cushing’s syndrome; Others include myelolipoma, cyst, ganglioneuroma, lymphangioma, teratoma, TD tumor diameter, DAK distance from lower pole of adrenal tumor to upper pole of kidney, DARP distance from adrenal tumor to renal pedicle

ISSN: 1471-2490