Important role of lymphovascular and perineural invasion in prognosis of colorectal cancer patients with N1c disease.

IF 4.3 3区 医学 Q1 GASTROENTEROLOGY & HEPATOLOGY
Zhi-Gang Sun, Shao-Xuan Chen, Bai-Long Sun, Da-Kui Zhang, Hong-Liang Sun, Huang Chen, Yu-Wan Hu, Tong-Yin Zhang, Zi-Han Han, Wen-Xiao Wu, Zhi-Yong Hou, Li Yao, Jian-Zheng Jie
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引用次数: 0

Abstract

Background: Lymphovascular invasion (LVI) and perineural invasion (PNI) are associated with decreased survival in colorectal cancer (CRC), but its significance in N1c stage remains to be clearly defined.

Aim: To evaluate LVI and PNI as potential prognostic indicators in N1c CRC.

Methods: We retrospectively identified 107 consecutive patients who had CRC with N1c disease radically resected at our hospital. Tumors were reviewed for LVI and PNI by one pathologist blinded to the patients' outcomes. Disease-free survival (DFS), overall survival (OS) and cancer-specific survival (CSS) were determined using the Kaplan-Meier method, with LVI and PNI prognosis differences determined by multivariate analysis using the Cox multiple hazards model. Results were compared using log-rank test. The receiver operating characteristic (ROC) curve was used to evaluate the prognostic predictive ability.

Results: The median follow-up time was 63.17 (45.33-81.37) months for DFS, with 33.64% (36/107) of patients experiencing recurrence; 21.5% of tumors were found to be LVI positive and 44.9% PNI positive. The 5-year DFS rate was greater for patients with LVI-negative tumors compared with LVI-positive tumors (74.0% vs 35.6%), and PNI was similar (82.5% vs 45.1%). On multivariate analysis, LVI [hazard ratio (HR) = 3.368, 95% confidence interval (CI): 1.628-6.966, P = 0.001] and PNI (HR = 3.055, 95%CI: 1.478-6.313, P = 0.002) were independent prognostic factors for DFS. All patients could be divided into three groups of patients with different prognosis according to LVI and PNI. The 5-year ROC curve for LVI, PNI and their combination prediction of DFS was 0.646, 0.709 and 0.759, respectively. Similar results were seen for OS and CSS.

Conclusion: LVI and PNI could serve as independent prognostic factors of outcomes in N1c CRC patients. Patients with LVI or PNI should be given more attention during treatment.

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来源期刊
World Journal of Gastroenterology
World Journal of Gastroenterology 医学-胃肠肝病学
CiteScore
7.80
自引率
4.70%
发文量
464
审稿时长
2.4 months
期刊介绍: The primary aims of the WJG are to improve diagnostic, therapeutic and preventive modalities and the skills of clinicians and to guide clinical practice in gastroenterology and hepatology.
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