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Objectives: Surgical resection of enlarged cardiophrenic lymph nodes (CPLNs) in primary treatment of advanced ovarian cancer has not been widely studied. We report on a cohort of patients undergoing CPLN resection during primary cytoreductive surgery (CRS), examining its feasibility, safety, and potential impact on clinical outcomes. Methods: We identified all patients undergoing primary CRS/CPLN resection for Stages IIIB-IV high-grade epithelial ovarian cancer at our institution from 1/2001–12/2013. Clinical and pathological data were collected. Statistical tests were performed. Results: 54 patients underwent CPLN resection. All had enlarged CPLNs on preoperative imaging. Median diameter of an enlarged CPLN: 1.3cm (range 0.6–2.9). Median patient age: 59y (range 41–74). 48 (88.9%) underwent transdiaphragmatic resection; 6 (11.1%) underwent video-assisted thoracic surgery. A median of 3 nodes (range 1–23) were resected. A median of 2 nodes (range 0–22) were positive for metastasis. 51/54 (94.4%) had positive nodes. 51 (94.4%) had chest tube placement; median time to removal: 4d (range 2–12). 44 (81.4%) had peritoneal carcinomatosis. 19 (35%) experienced major postoperative complications; 4 of these (7%) were surgery-related. Median time to adjuvant chemotherapy: 40d (range 19–205). All patients were optimally cytoreduced, 30 (55.6%) without visible residual disease. Median progression-free survival: 17.2mos (95% CI 12.6–21.8); median overall survival: 70.1mos (95% CI 51.2–89.0). Conclusions: Enlarged CPLNs can be identified on preoperative imaging and may indicate metastases. Resection can identify extra-abdominal disease, confirm Stage IV disease, obtain optimal cytoreduction. In the proper setting it is feasible, safe, and does not delay chemotherapy. In select patients, it may improve survival.

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