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Abstract
An analysis was performed of malignant and host cells found in peritoneal fluids obtained during intraperitoneal chemotherapy and immunotherapy in patients with ovarian cancer. The concentration of malignant cells and the surgically documented response to the intraperitoneal treatment were correlated. Twenty-three patients were treated with intraperitoneal cisplatin or alpha-2 interferon (rIFN-alpha 2) after persistent carcinoma was documented at second-look laparotomy. Six patients (26%) had a complete response to therapy, and all of these patients had a malignant cell concentration of less than 10(2)cells/cm2/dL. No responses were seen in patients whose initial malignant cell concentration was greater than 10(3)cells/cm2/dL. Among patients treated with intraperitoneal alpha-interferon, five of 11 whose initial concentration of malignant cells was less than 10(2) cells/cm2/dL responded to therapy, whereas none of the patients whose malignant cell concentration was 10(2) cells/cm2/dL or greater responded. In patients treated with intraperitoneal cisplatin, the initial concentration of malignant cells associated with any surgically documented response was less than 10(3)cells/cm2/dL. A host mesothelial reaction was prominent after intraperitoneal alpha-interferon, but not observed in women treated with intraperitoneal cis-platin. The fluctuating pattern of peritoneal white blood cells documented during therapy did not correlate with response. THe evaluation of peritoneal cytology specimens during intraperitoneal chemotherapy should include a quantitative assessment of malignant cells and reactive mesothelial cells in order to reflect more accurately the histologically documented findings. Initial quantitative cytology appears to correlate with the likelihood of a surgically documented response to intraperitoneal therapy.
View details for Web of Science ID A1988Q648700020
View details for PubMedID 3173930