Abstract
Background
It is still unclear whether micrometastasis of para-aortic lymph nodes (PALNs) in pancreatic ductal adenocarcinoma (PDAC) is tantamount to PALN metastasis detected by hematoxylin and eosin (HE) staining.
Methods
A total of 242 patients with PDAC who underwent radical pancreatectomy with PALN dissection were eligible for this study. Micrometastasis in PALNs was evaluated by CAM 5.2 immunohistochemistry. The relationship between PALN status and overall survival (OS) was analyzed.
Results
Of the 242 enrolled patients, 25 (10 %) had PALN metastasis detected by HE (PALN HE-positive), and 21 (9 %) had PALN micrometastasis not detected by HE but identified by CAM 5.2 immunohistochemistry. Univariate analysis revealed that patients with PALN micrometastasis (p = .004) and PALN HE positivity (p = .003) had a significantly shorter OS than those without PALN metastasis, whereas no significant difference was observed between the two former groups (p = .874). In multivariate analysis, lack of adjuvant chemotherapy (hazard ratio [HR] 2.43, p < .001), PALN micrometastasis (HR 1.89; p = .046), and PALN HE-positivity (HR 1.89, p = .023) were identified as independent risk factors for poor prognosis. Within a subset of 46 patients with PALN HE-positivity or micrometastasis, lack of adjuvant chemotherapy was independently associated with poor OS (HR 2.58. p = .029).
Conclusions
The prognosis of patients with PALN micrometastasis was extremely poor as well as HE-positive PALNs. However, postoperative adjuvant chemotherapy may contribute to improving the prognosis of PDAC patients with PALN metastasis.
Similar content being viewed by others
References
Murakami Y, Uemura K, Sudo T, et al. Is pancreatic fistula associated with worse overall survival in patients with pancreatic carcinoma? World J Surg. 2015;39:500–8.
Lim JE, Chien MW, Earle CC. Prognostic factors following curative resection for pancreatic adenocarcinoma: a population-based, linked database analysis of 396 patients. Ann Surg. 2003;237:74–85.
Shimada K, Sakamoto Y, Sano T, Kosuge T. The role of paraaortic lymph node involvement on early recurrence and survival after macroscopic curative resection with extended lymphadenectomy for pancreatic carcinoma. J Am Coll Surg. 2006;203:345–52.
Murakami Y, Uemura K, Sudo T, et al. Number of metastatic lymph nodes, but not lymph node ratio, is an independent prognostic factor after resection of pancreatic carcinoma. J Am Coll Surg. 2010;211:196–204.
Kanda M, Fujii T, Sahin TT, et al. Invasion of the splenic artery is a crucial prognostic factor in carcinoma of the body and tail of the pancreas. Ann Surg. 2010;251:483–7.
Nagakawa T, Kobayashi H, Ueno K, et al. Clinical study of lymphatic flow to the paraaortic lymph nodes in carcinoma of the head of the pancreas. Cancer. 1994;73:1155–62.
Kayahara M, Nagakawa T, Ohta T, et al. Analysis of paraaortic lymph node involvement in pancreatic carcinoma: a significant indication for surgery? Cancer. 1999;85:583–90.
Yoshida T, Matsumoto T, Sasaki A, et al. Outcome of paraaortic node-positive pancreatic head and bile duct adenocarcinoma. Am J Surg. 2004;187:736–40.
Jiao X, Eslami A, Loffe O, et al. Immunohistochemistry analysis of micrometastasis in pretreatment lymph nodes from patients with esophageal cancer. Ann Thorac Surg. 2003;76:996–1000.
Tanabe T, Nishimaki T, Watanabe H, , et al. Immunohistochemically detected micrometastasis in lymph nodes from superficial esophageal squamous cell carcinoma. J Surg Oncol. 2003;82:153–9.
Arigami T, Uenosono Y, Yanagita S, et al. Clinical significance of lymph node micrometastasis in gastric cancer. Ann Surg Oncol. 2013;20:515–21.
Sonoda H, Tani T. Clinical significance of molecular diagnosis for gastric cancer lymph node micrometastasis. World J Gastroenterol. 2014;20:13728–33.
Bilchik AJ, Hoon DS, Saha S, et al. Prognostic impact of micrometastases in colon cancer: interim results of a prospective multicenter trial. Ann Surg. 2007;246:568–77.
Rahbari NN, Bork U, Motschall E, et al. Molecular detection of tumor cells in regional lymph nodes is associated with disease recurrence and poor survival in node-negative colorectal cancer: a systematic review and meta-analysis. J Clin Oncol. 2012;30:60–70.
Yonemori A, Kondo S, Matsuno Y, et al. Prognostic impact of para-aortic lymph node micrometastasis in patients with regional node-positive biliary cancer. Br J Surg. 2009;96:509–16.
Yonemori A, Kondo S, Matsuno Y, et al. Prognostic impact of regional lymph node micrometastasis in patients with node-negative biliary cancer. Ann Surg. 2010;252:99–106.
Schwarz L, Lupinacci RM, Svrcek M, et al. Para-aortic lymph node sampling in pancreatic head adenocarcinoma. Br J Surg. 2014;101:530–8.
Kayahara M, Funaki K, Tajima H, et al. Surgical implication of micrometastasis for pancreatic cancer. Pancreas. 2010;39:884–8.
Kurahara H, Takao S, Maemura K, et al. Impact of lymph node micrometastasis in patients with pancreatic head cancer. World J Surg. 2007;31:483–90.
Sobin LH, Gaspodarowicz MK, Wittekind C. International Union Against Cancer (UICC): TNM classification of malignant tumours. 7th ed. New York: Wiley-Blackwell, 2009.
Murakami Y, Uemura K, Sudo T, et al. Adjuvant gemcitabine plus S-1 chemotherapy after surgical resection for pancreatic adenocarcinoma. Am J Surg. 2008;195:757–62.
Murakami Y, Uemura K, Sudo T, et al. Impact of adjuvant gemcitabine plus S-1 chemotherapy after surgical resection for adenocarcinoma of the body or tail of the pancreas. J Gastrointest Surg. 2009;13:85–92.
Murakami Y, Uemura K, Sudo T, et al. Long-term results of adjuvant gemcitabine plus S-1 chemotherapy after surgical resection for pancreatic carcinoma. J Surg Oncol. 2012;106:174–80.
Bandyopadhyay S, Basturk O, Coban I, et al. Isolated solitary ducts (naked ducts) in adipose tissue: a specific but underappreciated finding of pancreatic adenocarcinoma and one of the potential reasons of understaging and high recurrence rate. Am J Surg Pathol. 2009;33:425–9.
Tol JA, Gouma DJ, Bassi C, et al. Definition of a standard lymphadenectomy in surgery for pancreatic ductal adenocarcinoma: a consensus statement by the International Study Group on Pancreatic Surgery (ISGPS). Surgery. 2014;156:591–600.
Egawa S, Toma H, Ohigashi H, et al. Japan Pancreatic Cancer Registry; 30th year anniversary: Japan Pancreas Society. Pancreas. 2012;41:985–92.
Ueno H, Ioka T, Ikeda M, et al. Randomized phase III study of gemcitabine plus S-1, S-1 alone, or gemcitabine alone in patients with locally advanced and metastatic pancreatic cancer in Japan and Taiwan: GEST study. J Clin Oncol. 2013;31:1640–8.
Marthey L, Sa-Cunha A, Blanc JF, et al. FOLFIRINOX for locally advanced pancreatic adenocarcinoma: results of an AGEO multicenter prospective observational cohort. Ann Surg Oncol. 2015;22:295–301.
Goldstein D, El-Maraghi RH, Hammel P, et al. nab-Paclitaxel plus gemcitabine for metastatic pancreatic cancer: long-term survival from a phase III trial. J Natl Cancer Inst. 2015;107:1–10.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Komo, T., Murakami, Y., Kondo, N. et al. Prognostic Impact of Para-Aortic Lymph Node Micrometastasis in Pancreatic Ductal Adenocarcinoma. Ann Surg Oncol 23, 2019–2027 (2016). https://doi.org/10.1245/s10434-016-5120-8
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1245/s10434-016-5120-8