Journal
CANCERS
Volume 13, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/cancers13112647
Keywords
cancer; colon; survival; differences
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This investigation aimed to analyze the differences in survival between right and left colon cancer, finding that patients with right colon cancer have a worse prognosis even in early stages. It is crucial to implement early detection and personalized treatment strategies to improve the survival and quality care of these patients. (1) Evidence of embryological, anatomical, histological, genetic, and immunological differences between right and left colon cancer was found. (2) A longitudinal analytical study with a case-control design was conducted from 2010 to 2017, including 398 patients matched 1:1 based on tumor location. (3) The results showed significant differences in evolution, progression, complications, and survival between right and left colon cancer. Patients with right colon cancer had more advanced disease characteristics leading to a worse prognosis.
Simple Summary The objective of this investigation is to analyze the differences between right and left colon cancer survival and test if these differences have transcendental importance for assistance to improve the survival and quality care of these patients. The results show that both entities are significantly different in terms of evolution, progression, complications and survival. Patients with right colon cancer have a worse prognosis, even in the early stages of the disease, due to more advanced N stages, a larger tumor size, more frequently poorly differentiated tumors and a greater positivity of lymphovascular invasion than left colon cancer. Improvement of the prognosis can be implemented mainly by reducing the specific mortality of colon cancer by achieving early detection and also stratified and personalized by location and age of onset, as well as surgical and oncological treatment of these patients. (1) There is evidence of the embryological, anatomical, histological, genetic and immunological differences between right colon cancer (RCC) and left colon cancer (LCC). This research has the general objective of studying the differences in outcome between RCC and LCC. (2) A longitudinal analytical study with prospective follow-up of the case-control type was conducted from 1 January 2010 to 31 December 2017 including 398 patients with 1:1 matching, depending on the location of the tumor. Inclusion criteria: programmed colectomies, 15 cm above the anal margin, adults and R0 surgery. (3) Precisely 6.8% of the exitus occurred in the first 6 months of the intervention. At 6 months, patients with LCC presented a mean survival of 7 months higher than RCC (p = 0.028). In the first stages, it can be observed that most of the exitus are for patients with RCC (stage I p = 0.021, stage II p = 0.014). In the last stages, the distribution of the deaths does not show differences between locations (stage III p = 0.683, stage IV p = 0.898). (4) The results show that RCC and LCC are significantly different in terms of evolution, progression, complications and survival. Patients with RCC have a worse prognosis, even in the early stages of the disease, due to more advanced N stages, larger tumor size, more frequently poorly differentiated tumors and a greater positivity of lymphovascular invasion than LCC.
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