Elevated Microsatellite Alterations at Selected Tetranucleotides (EMAST) in Colorectal Cancer is Associated with an Elderly, Frail Phenotype and Improved Recurrence-Free Survival

2019 ◽  
Vol 27 (4) ◽  
pp. 1058-1067 ◽  
Author(s):  
Martin M. Watson ◽  
Arezo Kanani ◽  
Dordi Lea ◽  
Ramesh B. Khajavi ◽  
Jon Arne Søreide ◽  
...  
2018 ◽  
Vol 55 (3) ◽  
pp. 258-263 ◽  
Author(s):  
Claudemiro QUIREZE JUNIOR ◽  
Andressa Machado Santana BRASIL ◽  
Lúcio Kenny MORAIS ◽  
Edmond Raymond Le CAMPION ◽  
Eliseu José Fleury TAVEIRA ◽  
...  

ABSTRACT BACKGROUND: Liver metastases from colorectal cancer are an important public health problem due to the increasing incidence of colorectal cancer worldwide. Synchronous colorectal liver metastasis has been associated with worse survival, but this prognosis is controversial. OBJECTIVE: The objective of this study was to evaluate the recurrence-free survival and overall survival between groups of patients with metachronous and synchronous colorectal hepatic metastasis. METHODS: This was a retrospective analysis of medical records of patients with colorectal liver metastases seen from 2013 to 2016, divided into a metachronous and a synchronous group. The Cox regression model and the Kaplan-Meier method with log-rank test were used to compare survival between groups. RESULTS: The mean recurrence-free survival was 9.75 months and 50% at 1 year in the metachronous group and 19.73 months and 63.3% at 1 year in the synchronous group. The mean overall survival was 20.00 months and 6.2% at 3 years in the metachronous group and 30.39 months and 31.6% at 3 years in the synchronous group. Patients with metachronous hepatic metastasis presented worse overall survival in multivariate analysis. The use of biological drugs combined with chemotherapy was related to the best overall survival prognosis. CONCLUSION: Metachronous colorectal hepatic metastasis was associated with a worse prognosis for overall survival. There was no difference in recurrence-free survival between metachronous and synchronous metastases.


2017 ◽  
Vol 11 (11) ◽  
pp. 1544-1560 ◽  
Author(s):  
Xianglong Tian ◽  
Xiaoqiang Zhu ◽  
Tingting Yan ◽  
Chenyang Yu ◽  
Chaoqin Shen ◽  
...  

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 20114-20114
Author(s):  
T. Kanazawa ◽  
T. Watanabe ◽  
H. Nagawa

20114 Background: Identification of patients at high risk for recurrence remains a central issue in the treatment of colorectal cancer. Our goal was to identify predictive factors for recurrence in colorectal cancer patients. Methods: DNA from 84 colorectal cancers were analyzed for wide-ranging allelotyping. Using 27 microsatellite markers spanning every 10cM on chromosome 17 and 18, we defined the LOH-ratio as the proportion of markers which show LOH out of 27 markers. Tumors were grouped into two groups by the median value of LOH-ratio (0.19). Recurrence free survival was compared with Kaplan-Meier analysis and log rank statistic. The Cox proportional hazards regression model was used for both univariate and multivariate analysis of recurrence free survival. Results: Log rank statistic revealed that LOH-ratio, stage, lymph node metastasis significantly related to recurrence free survival. On univariate analysis, significant predictors of Recurrence free survival were LOH-ratio, lymph node metastasis, Dukes’ classification, and pathological type. On multivariate analysis, LOH-ratio (HR 3.1, p = 0.02) and lymph node metastasis (HR 5.2, p = 0.002) independently predicted for recurrence free survival. Conclusions: LOH-ratio and lymph node metastasis were the only independent predictors of recurrence free survival. Altogether with lymph node metastasis, LOH-ratio could help to improve postoperative surveillance and adjuvant therapy. No significant financial relationships to disclose.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14114-e14114
Author(s):  
Justin Y Jeon ◽  
Deok Hyun Jeong ◽  
Min Keun Park ◽  
Jennifer A. Ligibel ◽  
Jeffrey A. Meyerhardt ◽  
...  

e14114 Background: Background: Conflicting results have been reported whether pre diagnosis diabetes mellitus (DM) influence survival of colorectal cancer patients or not. Therefore, we determine the influence of DM on long-term outcomes of stage 1-3 patients with resected colon and rectal cancer. Methods: This prospective study include a total of 4,131 participants who were treated for cancer between 1995 and 2005 in South Korea in a single hospital (Non DM: 3,614 patients, DM: 517 patients) with average follow up period of 12 years. We analyzed differences in all cause mortality, disease free survival (DFS), recurrence free survival (RFS) and colorectal cancer-specific mortality between colorectal patients with DM and those without DM. Results: After adjustment for potential confounders, pre-diagnosis DM significantly associated with increased all cause mortality (HR: 1.46, 95% CI: 1.11-1.92), and recurrence free survival reduced DFS (HR: 1.45, 95%CI: 1.15-1.84) and RFS (HR: 1.32, 95% CI: 0.98-1.76) in colon cancer patients but not in rectal cancer patients. In colon cancer patients, DM negatively affects the survival outcome of proximal colon cancer (HR: 2.08, 95%CI: 1.38-3.13), but not of distal cancer (HR:1.34, 95% CI: 0.92-1.96). Conclusions: To our knowledge, the current study first reported the effects of pre-diagnosis DM on survival outcome of colorectal cancer are site specific (proximal colon, distal colon and rectum). The current study was supported by the National Research Foundation of Korea (KRF) (No. 2011-0004892) and the National R&D Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (1120230). [Table: see text]


2021 ◽  
Vol 10 (16) ◽  
pp. 3712
Author(s):  
Hou-Ying Cheng ◽  
Kai-Wen Huang ◽  
Jin-Tung Liang ◽  
Been-Ren Lin ◽  
John Huang ◽  
...  

The outcome of radiofrequency ablation (RFA) for liver metastases from colorectal cancer (CRLM) has been thought to be inferior to metastasectomy. However, the recent development of multielectrode RFA (multi-RFA) systems has made the ablation zone larger and more complete. Thus, we assessed the survival benefits of this modality in cases of metachronous CRLM. This retrospective study assessed patients diagnosed with resectable metachronous CRLM between 2013 and 2016; 132 patients were categorized by treatment for liver metastases: multi-RFA (n = 68), hepatectomy (n = 34), or systemic treatment only (n = 30). Therapeutic effectiveness, outcomes, and intervention-related complications were compared between groups. Median overall survival (OS), recurrence-free survival (RFS), and intrahepatic recurrence-free survival (IHRFS) were 69.8, 85.2, and 59.7 months for the hepatectomy group; 53.4, 41.3, and 32.3 months for the multi-RFA group; and 19.1, 7.1, and 7.1 months for the systemic treatment group. No significant differences were observed between the multi-RFA and hepatectomy groups after a median follow-up of 59.8 months. This study demonstrated that multi-RFA and hepatectomy provide similar survival benefits for patients with resectable CRLM. Multi-RFA may represent a reliable treatment option for the management of resectable liver metastases.


Medicina ◽  
2021 ◽  
Vol 57 (9) ◽  
pp. 938
Author(s):  
Guhyun Kang ◽  
Ilhwan Oh ◽  
Jungsoo Pyo ◽  
Dongwook Kang ◽  
Byoungkwan Son

Background and objectives: The present study aimed to evaluate the clinicopathological significance and prognostic implications of REG4 immunohistochemical expression in colorectal cancer (CRC). Materials and Methods: We performed immunohistochemical analysis for REG4 cytoplasmic expression in 266 human CRC tissues. Correlations between REG4 expression, clinicopathological characteristics, and survival were investigated in CRC. Results: REG4 was expressed in 84 of 266 CRC tissues (31.6%). REG4 expression was significantly more frequent in the right colon than that in the left colon and rectum (p = 0.002). However, we observed no significant correlation between REG4 expression and other clinicopathological parameters. REG4 expression was significantly higher in CRCs with low stroma than in those with high stroma (p = 0.006). In addition, REG4 was more frequently expressed in CRCs with the mucinous component than in those without it (p < 0.001). There was no significant correlation between REG4 expression and overall recurrence-free survival (p = 0.132 and p = 0.480, respectively). Patients with REG4 expression showed worse overall and recurrence-free survival in the high-stroma subgroup (p = 0.001 and p = 0.017, respectively), but no such correlation was seen in the low stroma subgroup (p = 0.232 and p = 0.575, respectively). Conclusions: REG4 expression was significantly correlated with tumor location, amount of stroma, and mucinous component in CRCs. In patients with high stroma, REG4 expression was significantly correlated with poor overall and recurrence-free survival.


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