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Erschienen in: Annals of Surgical Oncology 8/2012

01.08.2012 | Colorectal Cancer

Risk Factors for Lymph Node Metastasis in pT1 and pT2 Rectal Cancer: A Single-Institute Experience in 943 Patients and Literature Review

verfasst von: Hao-Cheng Chang, MD, Shih-Chiang Huang, MD, Jinn-Shiun Chen, MD, Reiping Tang, MD, Chung Rong Changchien, MD, Jy-Ming Chiang, MD, Chien-Yuh Yeh, MD, Pao-Shiu Hsieh, MD, Wen-Sy Tsai, MD, Hsin-Yuan Hung, MD, Jeng-Fu You, MD

Erschienen in: Annals of Surgical Oncology | Ausgabe 8/2012

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Abstract

Background

Local excision has become an alternative for radical resection in rectal cancer for selected patients. The purpose of this study was to assess the clinicopathologic factors determining lymph node metastasis (LNM) in patients with T1–2 rectal cancer.

Methods

Between January 1995 and December 2009, a total of 943 patients with pT1 or pT2 rectal adenocarcinoma received radical resection at a single institution. Clinicopathologic factors were evaluated by univariate and multivariate analyses to identify risk factors for LNM.

Results

A total of 943 patients (544 men and 399 women) treated for T1–2 rectal cancer were included in this study. LNM was found in 188 patients (19.9%). In multivariate analysis, lymphovascular invasion (LVI; P < 0.001, hazard ratio 11.472), poor differentiation (PD; P = 0.007, hazard ratio 3.218), and depth of invasion (presence of pT2; P = 0.032, hazard ratio 1.694) were significantly related to nodal involvement. The incidence for LNM lesions in the presence of LVI, PD, and pT2 was 68.8, 50.0, and 23.1%, respectively, while that for pT1 carcinomas with no LVI or PD was 7.5%.

Conclusions

LVI, PD, and pT2 are independent risk factors predicting LNM in pT1–2 rectal carcinoma.
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Metadaten
Titel
Risk Factors for Lymph Node Metastasis in pT1 and pT2 Rectal Cancer: A Single-Institute Experience in 943 Patients and Literature Review
verfasst von
Hao-Cheng Chang, MD
Shih-Chiang Huang, MD
Jinn-Shiun Chen, MD
Reiping Tang, MD
Chung Rong Changchien, MD
Jy-Ming Chiang, MD
Chien-Yuh Yeh, MD
Pao-Shiu Hsieh, MD
Wen-Sy Tsai, MD
Hsin-Yuan Hung, MD
Jeng-Fu You, MD
Publikationsdatum
01.08.2012
Verlag
Springer-Verlag
Erschienen in
Annals of Surgical Oncology / Ausgabe 8/2012
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-012-2303-9

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