eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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vol. 13
Clinical research

Peritoneal lavage examination as a prognostic tool in cases of gastric cancer

David Hoskovec
Jozef Varga
Petr Dytrych
Ellen Konecna
Jan Matek

Arch Med Sci 2017; 13, 3: 612–616
Online publish date: 2016/11/29
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Introduction: Peritoneal tumor seeding is a common form of recurrence after gastric cancer surgery. The finding of free tumor cells and/or elevation of tumor markers in the peritoneal fluid could predict intraperitoneal tumor recurrence. The results of these examination can be used for indication of aggressive treatment modalities such as hyperthermic intraperitoneal chemotherapy (HIPEC).

Material and methods: We have operated on 105 patients suffering from gastric cancer. The control group consisted of 12 patients without malignant disease. Peritoneal lavage fluid or ascites was collected immediately after laparotomy and examined by cytology and biochemistry (levels of carcinoembryonic antigen (CEA) and Ca 19–9). Sensitivity, specificity, stage correlation and overall survival were observed.

Results: Elevation of tumor markers or the finding of free intraperitoneal tumor cells predicts recurrence. The prognosis of these patients corresponds to TNM classification stage IV, regardless of other TNM parameters. Sensitivity of the cytology was 34% and specificity was 85%. Sensitivity of biochemistry was 53% (combination of both markers) and specificity was 100%.

Conclusions: This study confirms the importance of peritoneal fluid examination for the prognosis. We cannot recommend routine use as an indicator for HIPEC due to low sensitivity, but the result of cytological examination is an independent factor for patient survival.

peritoneal cytology, peritoneal biochemistry, gastric cancer

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