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Abstract   Background  The primary treatment for advanced ovarian cancer is aggressive cytoreductive surgery (CRS), which is associated with considerable morbidity. The aim of this meta-analysis is to compare morbidity associated with primary CRS and secondary CRS for recurrent disease.    Methods  A literature search was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for publications reporting morbidity and mortality in patients undergoing CRS in primary and recurrent ovarian malignancy. Embase, Medline, Pubmed, Pubmed Central, clinicaltrials. gov and Cochrane databases were searched. Two independent reviewers applied inclusion and exclusion criteria to select included papers. A total of 215 citations were reviewed; 6 studies comprising 641 patients were selected for the analysis.    Results  Results were reported as mean differences or pooled odds ratios (OR) with 95 % confidence intervals (95 % CI). The overall morbidity rate was 38.4 %, and this did not differ between the two groups (p=0.97). This did not change when only Clavien-Dindo grade 3 and 4 morbidities were accounted for (14 % primary CRS, 15 % recurrent, p=0.83). Compared to primary CRS, secondary CRS was associated with a similar operative time (mean 400 min, I2=79 %, p=0.45), rate of bowel resection (I2=75 %, p=0.37) and transfusion requirements (MD – 0.7 L, I2=76 %, p=0.45). The mortality rate in both groups was too low to allow for meaningful meta-analysis, with four deaths in the group undergoing primary cytoreductive surgery (1.0 %) and two deaths in the group with recurrent disease (0.9 %).    Conclusions  In conclusion, secondary CRS for recurrent ovarian cancer is a safe and feasible option in carefully pre-selected patients with comparable morbidity to primary CRS.

pleura and peritoneum

Morbidity and mortality in women with advanced ovarian cancer who underwent primary cytoreductive surgery compared to cytoreductive surgery for recurrent disease: a meta-analysis