Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study
Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC.
Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures.
Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P=0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P=0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P=0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P=0.729 and 0.052).
Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.
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Posted 02 Sep, 2020
On 25 Aug, 2020
On 25 Aug, 2020
On 17 Aug, 2020
On 16 Aug, 2020
On 16 Aug, 2020
On 02 Aug, 2020
Received 23 Jul, 2020
Invitations sent on 22 Jul, 2020
On 22 Jul, 2020
On 09 Jul, 2020
On 08 Jul, 2020
On 08 Jul, 2020
Received 23 Jun, 2020
On 23 Jun, 2020
Received 09 Jun, 2020
On 29 May, 2020
Invitations sent on 18 May, 2020
On 18 May, 2020
On 10 May, 2020
On 07 May, 2020
On 06 May, 2020
Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study
Posted 02 Sep, 2020
On 25 Aug, 2020
On 25 Aug, 2020
On 17 Aug, 2020
On 16 Aug, 2020
On 16 Aug, 2020
On 02 Aug, 2020
Received 23 Jul, 2020
Invitations sent on 22 Jul, 2020
On 22 Jul, 2020
On 09 Jul, 2020
On 08 Jul, 2020
On 08 Jul, 2020
Received 23 Jun, 2020
On 23 Jun, 2020
Received 09 Jun, 2020
On 29 May, 2020
Invitations sent on 18 May, 2020
On 18 May, 2020
On 10 May, 2020
On 07 May, 2020
On 06 May, 2020
Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC.
Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures.
Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P=0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P=0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P=0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P=0.729 and 0.052).
Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.
Figure 1
Figure 2
Figure 3