A Retrospective Study of 881 Lateral Transabdominal Laparoscopic Adrenalectomies Performed Between 1997 and 2017 at a Single Center in Poland to Determine Factors Associated with Surgery Time

01 April 2022: Clinical Research

Milena Duralska ^1ABCDEF* , Jacek Dzwonkowski ^1ABDE , Janusz Sierdziński ^2ACDE , Sławomir Nazarewski ^1ADE

DOI: 10.12659/MSM.936272

Med Sci Monit 2022; 28:e936272

Table 2 Patient demographics and statistical analysis of surgery time.

Factors	No.	Mean OT	SD OT	Median OT	Min OT	Max OT	Confidence interval OT		P value	Test
Factors	No.	Mean OT	SD OT	Median OT	Min OT	Max OT	−95%	+95%	P value	Test
All operations	881	139	43	130	55	320	136	142
Sex										−5.58^*
Female	606	133	40	125	55	320	130	137
Male	275	151	45	150	60	300	146	157
Side										−10.46^*
Right	484	126	39	120	55	320	122	129
Left	397	155	42	150	70	300	151	159
Histopathology										24.17^***
Pheochromocytoma	178	150	47	150	60	320	143	157
Adenoma	391	132	39	125	55	300	128	136
Nodular hyperplasia	177	137	41	135	70	300	131	144
Malignancies	27	148	49	140	75	260	129	167
Others	108	147	45	135	60	270	138	155
Hormonal activity										27.84^***
Non-functioning	410	137	42	125	55	300	133	141
Aldosterone-secreting	92	123	34	120	60	240	115	130
Cortisol-secreting	187	140	41	135	60	280	134	146
Catecholamines-secreting	179	150	47	150	60	320	143	157
Androgens-secreting	13	158	51	150	90	240	127	189
Previous surgeries									0.14	3.88^***
0	488	138	42	130	55	320	134	142
1	304	143	44	135	60	300	138	148
2 or more	89	133	38	130	60	260	125	141
Adhesions										−2.43^**
Absent	677	137	43	130	55	320	134	140
Present	204	145	40	140	60	250	140	151
Obesity										−4.54^*
Absent	679	136	43	125	60	320	133	139
Present	202	149	40	150	55	280	144	155
OT – surgery time; SD – standard deviation; ^* Mann-Whitney U test; ^ test; ^* Kruskal-Wallis H test.