Journal of cancer research and clinical oncology · 2015
The prognostic relevance of node metastases in optimally cytoreduced advanced ovarian cancer.
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Bachmann Cornelia, Brucker Sara Y, Kraemer Bernhard, Rothmund Ralf, Staebler Anette, Fend Falko, Wallwiener Diethelm, Grischke Eva-Maria
Аннотация
PURPOSE: To delineate the relevance of pelvic and para-aortic node involvement in optimally cytoreduced (residual tumour <1 cm) stage IIIC ovarian cancer patients.
METHODS: Ninety-five consecutive optimally cytoreduced (R ≤ 1 cm) patients with primary stage IIIc ovarian cancer underwent stage-related surgery and got adjuvant platinum-based chemotherapy. Median follow-up: 53.5 months. All patients got systematic lymphadenectomy. On average, 24.7 pelvic and para-aortic lymph nodes were removed per patient (range 1-60 nodes). Patients were stratified into three groups to evaluate node involvement (ratio: affected to resected nodes): (1) (=0); (2) (>0-≤ 0.5) >0 and ≤ 50 % of affected nodes; (3) (>0.5-≤ 1) >50 % of affected nodes. Clinical parameters were retrospectively evaluated. Kaplan-Meier survival curve was used to evaluate the prognostic value.
RESULTS: Most often serous histology, histologic grade 3 and a node ratio >0-≤ 0.5 (61.1 %) were detected. Complete cytoreduction (R = 0 mm) has significant best prognostic impact compared to R > 0 mm-1 cm (OS: p = 0.047, PFS: p = 0.00). Node involvement was associated with serous histology and grade 3. Increasing node ratio leads to significant decreased OS (p = 0.019) and significant best OS was associated with node ratio >0-≤0.5.
CONCLUSIONS: The goal is optimal cytoreduction in advanced ovarian cancer. More extensive lymphadenectomy seems to play an important role in providing an accurate staging, and the node ratio might give prognostic information. Current prospective studies like the LION study (AGO-Ovar) had to investigate if these data have therapeutic implications and may be considered in future staging.
METHODS: Ninety-five consecutive optimally cytoreduced (R ≤ 1 cm) patients with primary stage IIIc ovarian cancer underwent stage-related surgery and got adjuvant platinum-based chemotherapy. Median follow-up: 53.5 months. All patients got systematic lymphadenectomy. On average, 24.7 pelvic and para-aortic lymph nodes were removed per patient (range 1-60 nodes). Patients were stratified into three groups to evaluate node involvement (ratio: affected to resected nodes): (1) (=0); (2) (>0-≤ 0.5) >0 and ≤ 50 % of affected nodes; (3) (>0.5-≤ 1) >50 % of affected nodes. Clinical parameters were retrospectively evaluated. Kaplan-Meier survival curve was used to evaluate the prognostic value.
RESULTS: Most often serous histology, histologic grade 3 and a node ratio >0-≤ 0.5 (61.1 %) were detected. Complete cytoreduction (R = 0 mm) has significant best prognostic impact compared to R > 0 mm-1 cm (OS: p = 0.047, PFS: p = 0.00). Node involvement was associated with serous histology and grade 3. Increasing node ratio leads to significant decreased OS (p = 0.019) and significant best OS was associated with node ratio >0-≤0.5.
CONCLUSIONS: The goal is optimal cytoreduction in advanced ovarian cancer. More extensive lymphadenectomy seems to play an important role in providing an accurate staging, and the node ratio might give prognostic information. Current prospective studies like the LION study (AGO-Ovar) had to investigate if these data have therapeutic implications and may be considered in future staging.