Abstract
Background
The purpose of this study was to identify clinicopathologic factors associated with positive peritoneal cytology (PPC) in patients with gastric cancer and to compare the overall survival (OS) of patients with PPC treated with and without neoadjuvant therapy.
Methods
The medical records of 3,747 patients with gastric or gastroesophageal adenocarcinoma presenting to our institution (January 1995 to December 2005) were reviewed to identify those patients who underwent diagnostic laparoscopy as a staging procedure prior to consideration for neoadjuvant therapy. Associations between various clinicopathologic factors and OS were examined with Cox proportional hazards models. Kaplan–Meier curves were created to compare OS between groups.
Results
Of 381 patients who underwent diagnostic laparoscopy for staging, 39 were found to have PPC without gross metastatic disease. Linitis plastica and tumors located at the gastroesophageal junction were identified as predictors of PPC (P < 0.01). Median follow-up for living patients was 51 months. Median OS for patients with PPC and no gross metastatic disease at laparoscopy (13 months) was no different from that for patients with gross metastatic disease at laparoscopy (10 months, P = 0.06). For the 39 patients with PPC and no gross metastatic disease, use of neoadjuvant therapy resulted in a 3-year OS rate of 12% versus 0% for patients who did not receive neoadjuvant therapy.
Conclusion
Outcomes for patients with PPC without gross metastatic disease are not significantly different from those patients with gross metastatic disease at laparoscopy. However, some patients can achieve long-term survival and should be considered for neoadjuvant treatment prior to attempts at surgical resection.
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References
The Gastric Cancer Clinical Practice Guidelines in Oncology (Version 2.2007). ©2007 National Comprehensive Cancer Network, Inc. Available at: http://www.nccn.org. Accessed [2/29/08]
D’Angelica M, Gonen M, Brennan MF, et al. Patterns of initial recurrence in completely resected gastric adenocarcinoma. Ann Surg 2004;240:808–16
Maehara Y, Kakeji Y, Oda S, et al. Tumor growth patterns and biological characteristics of early gastric carcinoma. Oncology2001;61:102–12
Bentrem D, Wilton A, Mazumdar M, et al. The value of peritoneal cytology as a preoperative predictor in patients with gastric carcinoma undergoing a curative resection. Ann Surg Oncol2005;12:347–53
Ribeiro U Jr, Gama-Rodrigues JJ, Bitelman B, et al. Value of peritoneal lavage cytology during laparoscopic staging of patients with gastric carcinoma. Surg Laparosc Endosc1998;8:132–5
Ribeiro U Jr, Gama-Rodrigues JJ, Safatle-Ribeiro AV, et al. Prognostic significance of intraperitoneal free cancer cells obtained by laparoscopic peritoneal lavage in patients with gastric cancer. J Gastrointest Surg1998;2:244–9
Abe S, Yoshimura H, Tabara H, et al. Curative resection of gastric cancer: limitation of peritoneal lavage cytology in predicting the outcome. J Surg Oncol1995;59:226–9
Yoshikawa T, Tsuburaya A, Kobayashi O, et al. Peritoneal cytology in patients with gastric cancer exposed to the serosa–a proposed new classification based on the local and distant cytology. Hepatogastroenterology2003;50:1183–6
Bonenkamp JJ, Songun I, Hermans J, et al. Prognostic value of positive cytology findings from abdominal washings in patients with gastric cancer. Br J Surg1996;83:672–4
Burke EC, Karpeh MS Jr., Conlon KC, et al. Peritoneal lavage cytology in gastric cancer: an independent predictor of outcome. Ann Surg Oncol1998;5:411–5
Bando E, Yonemura Y, Takeshita Y, et al. Intraoperative lavage for cytological examination in 1,297 patients with gastric carcinoma. Am J Surg 1999;178:256–62
Suzuki T, Ochiai T, Hayashi H, et al. Peritoneal lavage cytology findings as prognostic factor for gastric cancer. Semin Surg Oncol1999;17:103–7
Japanese Gastric Cancer A. Japanese Classification of Gastric Carcinoma-2nd English Edition. Gastric Cancer1998;1:10–24
Greene FL, Page DL, Fleming ID, et al. AJCC Cancer Staging Manual, 6th edition. New York: Spring-Verlag, 2002
Fienberg S. The Analysis of Cross-Classified Categorical Data, 2nd edition. Cambridge: The MIT Press, 1983
Conover W. Practical Nonparametric Statistics, 2nd edition. New York: Wiley, 1980
Link C. Confidence intervals for the survival function using Cox’s proportional hazards model with covariates. Biometrics1984;40:601–10
Hosmer DW, Lemeshow S. Applied Survival Analysis, 1st edition. New York: Wiley, 1999
Fleming TH, Harrington DP. Nonparametric estimation of the survival distribution in censored data. Commun Stat1984; 4:2469–86
Kalbfleisch JD, Prentice RL. The Statistical Analysis of Failure Time Data. New York: Wiley, 1980
Nakagawa S, Nashimoto A, Yabusaki H. Role of staging laparoscopy with peritoneal lavage cytology in the treatment of locally advanced gastric cancer. Gastric Cancer2007;10:29–34
Yan TD, Black D, Sugarbaker PH, et al. A systematic review and meta-analysis of the randomized controlled trials on adjuvant intraperitoneal chemotherapy for resectable gastric cancer. Ann Surg Oncol2007;14:2702–13
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We would like to acknowledge Kristi M. Speights for editorial assistance.
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Badgwell, B., Cormier, J.N., Krishnan, S. et al. Does Neoadjuvant Treatment for Gastric Cancer Patients with Positive Peritoneal Cytology at Staging Laparoscopy Improve Survival?. Ann Surg Oncol 15, 2684–2691 (2008). https://doi.org/10.1245/s10434-008-0055-3
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DOI: https://doi.org/10.1245/s10434-008-0055-3