Complications of Extended Pelvic Lymph Node Dissection in Patients Undergoing Minimally Invasive Radical Prostatectomy: Analysis and Risk Factors

Table 2

Univariate analysis of anatomopathological characteristics and the occurrence of postoperative complications.

Variables	Presence of postoperative complications		-value	Total (n = 124)
	Absent (n = 84)	Present (n = 40)
Anatomopathological variables
Postoperative ISUP		0.949^Q
Differentiated	32 (38.1%)	15 (37,5%)		47 (37,9%)
Undifferentiated	52 (61,9%)	25 (62,5%)		77 (62,1%)
Number of lymph nodes removed (n = 121)	9 (6; 12)	9 (7; 13)	0.934^W	9 (6; 12)
Positive lymph nodes	26 (31%)	9 (22,5%)	0.445^Q	35 (28,2%)
Extra-prostatic disease	49 (58.3%)	26 (65%)	0.608^Q	75 (60,5%)
Positive seminal vesicles	23 (27.4%)	14 (35%)	0.511^Q	37 (29,8%)
Positive margins	34 (40.5%)	12 (30%)	0.352^Q	46 (37,1%)
TNM Staging			0.078^M
I	5 (6.0%)	0 (0,0%)		5 (4,0%)
II	25 (29.8%)	9 (22,5%)		34 (27,4%)
III	28 (33.3%)	22 (55,0%)		50 (40,3%)
IV	26 (31.0%)	9 (22,5%)		35 (28,2%)
Grouped staging			0.138^Q
Initial (I + II)	30 (35.7%)	9 (22,5%)		39 (31,5%)
Advanced (III + IV)	54 (64.3%)	31 (77,5%)		85 (68,5%)

^W Wilcoxon Mann–Whitney test, ^Q Chi-Square test, ^M adjusted (Monte Carlo) Chi-square test. n is less than the total number of patients because the number of lymph nodes removed in three patients was not described.