Table 1. Patients, tumour-related and surgical characteristics of the 49 patients who underwent QC due to EOC relapse.

Variables	Patients, n (%)
N	49
Median age at surgery (years)	57 (28–76)
FIGO stage at primary diagnosis
I	6 (12.2%)
II	6 (12.2%)
III	33 (67.3%)
IV	1 (2.04%)
Histology
Serous-papillary	33 (67.3%)
Mucinous	1 (2%)
Endometriod	12 (24.5%)
Clear cell	3 (6.1%)
Intraoperative ascites
None	33(67.3%)
<500 ml	12 (24.5%)
⩾500 ml	2 (4.1%)
Grading
G1	3 (6.1%)
G2	11 (22.4%)
G3	29 (59.2%)
Median CA125 (U/ml)
Preoperative	736 (28–2843)
After 3 cycles of chemotherapy	220 (19–365)
After chemotherapy completion	84 (21–156)
Postoperative tumor residuals
None	16 (32.6%)
⩽0.5 cm	15 (30.6%)
0.5–1 cm	9 (18.3%)
>1 cm	9 (18.3%)
Years after primary diagnosis
2–3 years	3 (6.1%)
3–5 years	20 (40.8%)
5–10 year	14 (28.5%)
>10years	12 (24.5)
Lymph nodes affected
N0	4 (8.2%)
N1	14 (28.6%)
Nx	31 (63.3%)
Operative procedure
Peritonectomy	21 (42.9%)
Pelvic LND	2 (4.1%)
Paraaortic LND	5 (10.2%)
Peritonectomy	21 (43%)
Partial liver resection	3 (6.1%)
Liver capsule resection	1 (2%)
Small bowel resection	25 (51%)
Large bowel resection	21 (42.9%)
Partial gastrectomy	1 (2%)
Ileostomy	10 (20.4%)
Colostomy	6 (12.2%)
Cholecystectomy	2 (4.1%)
Splenectomy	2 (4.1%)
Diaphragmatic resection	1 (2.0%)
Operative morbidity and mortality
Any major operative complication	14 (28.6%)
Major complications
Anastomotic insufficiency	3 (6.1%)
Postoperative fistula formation	1 (2%)
Thromboembolic event	1 (2%)
Infection/sepsis	9 (18.4%)
Postoperative haemorhage	4 (8.2%)
Symptomatic thrombosis/embolism
Short bowel syndrome	1 (2%)
Bowel obstruction	1 (2%)
Pneumonia/Pleura effusion	6 (12.2%)
Multiorgan failure	2 (4.1%)
30-days mortality	1 (2%)

Abbreviations: EOC=epithelial ovarian cancer; FIGO=International Federation of Gynecology and Obstetrics; LND=lymph node dissection; QC=quaternary cytoreduction.