Prognostic Value of Residual Disease after Interval Debulking Surgery for FIGO Stage IIIC and IV Epithelial Ovarian Cancer

Table 3

Survival outcome according to timing of surgical treatment. Values given are numbers (%) or months (SE) for DSS and PFS.

Survival	PDS patients ()	IDS patients ()
Mortality < 30 days after surgery (%)	2 (1)	2 (0)
DSS in months
NRD	59.2 (7)	43.6 (3)
MRD	36.7 (3)	26.7 (3)
GRD	35.6 (4)	21.5 (2)
PFS in months
NRD	23.7 (4)	17.4 (1)
MRD	16.7 (2)	11.9 (1)
GRD	12.5 (1)	9.0 (1)
Progression within 6 months after last cycle of chemotherapy	68 (32)	182 (40)

DSS: disease specific survival; PFS: progression-free survival; NRD: no residual disease; MRD: minimal residual disease (deposits of residual tumour <1 cm); GRD: gross residual disease (deposits of residual tumour >1 cm).