A predictive tool is required to identify the cancer-specific survival in rectal cancer (RC) patients who have opted to receive preoperative radiotherapy. A database containing the data on RC patients' records of Surveillance, Epidemiology, and End Results (SEER) receiving surgery during 2000-2014 was selected. All patients received neoadjuvant radiotherapy (NR). The correlation of clinicopathological parameters was analyzed using the Chi-square test and the survival risk factors were analyzed using the Cox proportional hazards analysis (univariate and multivariate). Finally, the nomogram was developed and validated to visually represent an accurate prediction of the probability of 3- and 5-year cancer-specific survival (CSS) based on the screened variables of the cohort. 11,499 rectal cancer patients were included in our cohort. Patients' records were randomly allocated to either the development or validation cohorts based on an equal ratio (1:1). Performing the multivariate Cox regression analysis incorporating these variables in the development cohort determined 11 independent prognostic factors. Statistically significant differences were recorded among subgroups using log-rank tests, which confirmed the appropriateness and acceptability of factor stratifications. Then, the nomogram was constructed and its concordance index (C-index) values in the development cohort (0.720) and validation cohort (0.717) were evaluated to be higher (<0.05) than those of the AJCC stage (0.631 and 0.633 respectively). Also, the 3-year AUC values of this nomogram were higher than those of the AJCC stage in both the development cohort (0.746 vs. 0.631) and the validation cohort (0.745 vs. 0.640). Using DCA curves, the predictive potential of the currently developed nomogram outperformed the conventional AJCC staging system. The nomogram model might be a more reliable tool to predict prognosis accurately in rectal cancer patients receiving preoperative radiotherapy.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/08941939.2022.2078021 | DOI Listing |
Ther Adv Med Oncol
January 2025
Department of Radiation Oncology, Eye & ENT Hospital of Fudan University, 83 Fenyang Road, Xuhui, Shanghai 200031, China.
Background: The presence of level IV/V metastasis is a significant prognostic factor for patients with oral and oropharyngeal cancer, while level IV lymphadenopathy defines the N3 stage in nasopharyngeal carcinoma. However, the current staging system for hypopharyngeal squamous cell carcinoma (HPSCC) does not consider the location of involved nodes.
Objectives: To evaluate the risk factors and prognostic impact of level IV/V metastasis in patients with HPSCC.
Comput Struct Biotechnol J
December 2024
Cancer Data Science Laboratory, National Cancer Institute, Bethesda, MD, USA.
Exosomal microRNAs (exomiRs) play a critical role in intercellular communication, especially in cancer, where they regulate key cellular processes like proliferation, angiogenesis, and metastasis, highlighting their significance as potential diagnostic and therapeutic targets. Here, we aimed to characterize the role of exomiRs, derived from seven cancer types (four cell lines and three tumors), in influencing the pre-metastatic niche (PMN). In each cancer type we extracted high confidence exomiRs (LogFC >= 2 in exosomes relative to control), their experimentally validated targets, and the enriched pathways among those targets.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Public Health, Chung Shan Medical University, Taichung, 40201, Taiwan.
Objectives: This study used the Disability-Adjusted Life Years (DALYs) to quantify the long-term trends for four cancers (oral cancer, colorectal cancer, breast cancer, and cervical cancer) that have undergone cancer screening in Taiwan.
Methods: DALYs were calculated as the sum of Years of Life Lost (YLL) due to premature mortality and Years Lived with Disability (YLD). YLLs were determined using cancer-specific mortality data from the Health Promotion Administration (HPA), Ministry of Health and Welfare, based on age-specific life expectancy.
J Med Screen
January 2025
Leeds Institute of Health Sciences, School of Medicine, University of Leeds, Leeds, UK.
Background: Low-dose computed tomography screening reduces lung cancer-specific mortality in high-risk individuals. Lung cancer risk factors overlap with comorbid diseases, highlighting the significance of frailty and comorbidities for lung cancer screening (LCS). Here, we describe the prevalence of frailty and comorbidity in those invited for LCS and evaluate their associations with response to telephone risk assessment invitation and subsequent uptake of LCS.
View Article and Find Full Text PDFBMC Public Health
January 2025
Department of Oncology, Zhuji People's Hospital of Zhejiang Province, No. 9 Jianmin Road, Zhuji, Zhejiang, 311800, China.
Background: Evidence is lacking on whether chronic pain is related to the risk of cancer mortality. This study seeks to unveil the association between chronic pain and all-cause, cancer, as well as non-cancer death in cancer patients based on the National Health and Nutrition Examination Survey (NHANES) database.
Methods: Cancer survivors aged at least 20 (n = 1369) from 3 NHANES (1999-2004) cycles were encompassed.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!