• Ozturk Ates, Bulent Aksel, Mehmet Hadi Akkus, Irem Oner, Cemil Yuksel, and Mutlu Dogan.
• Department of Medical Oncology, Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey.
• J Coll Physicians Surg Pak. 2023 Sep 1; 33 (9): 100110051001-1005.

ObjectiveTo evaluate the optimal candidates for hyperthermic intraperitoneal chemotherapy (HIPEC) and cytoreductive surgery (CRS) in ovarian cancer.Study DesignDescriptive study. Place and Duration of the Study: Health Sciences University, Dr. Abdurrahman Yurtasian Ankara Oncology Training and Research Hospital, Ankara, Turkey, between 2013 and 2021.MethodologyOvarian cancer patients who underwent HIPEC and CRS for peritoneal involvement were included in this study. Thermosolutions were prepared as a closed system by using HT 2000 hyperthermic perfusion device. Then, cisplatin was applied at 100 mg/m2 at 42-42.5 °C for 60 minutes after CRS.ResultsA total of 47 patients were enrolled. The median age was 54 years (27-80) at the time of diagnosis. Forty (85.1%) patients had high grade serous carcinoma and 22 (46.7%) patients had clinical stage 3C disease. The median peritoneal cancer index (PCI) was 13 (3-24) in the whole population. HIPEC was applied as first-line treatment in 25 (51%) patients. Eleven (23.4%) patients had HIPEC in the post-neoadjuvant interval whereas 10 (21.3%) patients had it in platinum sensitive relapse. Median progression free survival (PFS) was 31(95% CI:11-50), 33 (95% CI:1-67), and 18 (95% CI:8-27) months in the primary, post-neoadjuvant interval, and platinum-sensitive relapse HIPEC groups, respectively. The patients with lower PCI (PCI<13) had significantly better OS than others with higher PCI (PCI>13, 145 months versus 42 months, p=0.034).ConclusionHIPEC with CRS should be considered in selected serous carcinoma patients with peritoneal involvement, especially for the patients with primary ovarian cancer with lower PCI (PCI<13).Key WordsOvarian cancer, HIPEC, Peritoneal cancer index.

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