AI Article Synopsis
- The study assesses changes in the TNM stage of colorectal cancer over 15 years as an indicator of early detection effectiveness.
- The research compared data from two time periods (1988-1990 and 2002-2004) involving 285 patients who underwent colorectal surgery.
- Findings indicate an increase in early-stage colon cancer cases and older patients undergoing surgery, while rectal cancer patients tended to be older men with a more advanced stage.
Article Abstract
Introduction: The stage of a malignant tumor defines how advanced the malignant process is at the time of diagnosis. In many clinical scenarios it is an indirect measurement of the efficacy of screening interventions used for early detection. We have evaluated changes in the tumor-node-metastasis (TNM) stage of colorectal cancer across a 15-year period.
Methods: This was a retrospective study in which all patients who underwent colorectal cancer surgery at the HIMA San Pablo Medical Center in 1988-1990 (period 1) and 2002-2004 (period 2) had their pathological report examined. The TNM stage for all patients was examined by using standard criteria.
Results: A total of 285 patients were evaluated: 108 in period 1 and 177 in period 2. The number of patients > 71 years of age who underwent colon surgery increased (33% vs 46%). An increase in patients with stage one colon cancer was observed in period 2 (30% vs 10%) with a corresponding decrease in stage 2 and 3 (59% vs 83%).
Conclusion: The pathologic and demographic profile of patients with colorectal cancer has changed over 15 years. Patients with colon cancer are younger and have an earlier stage of disease with a decrease in lymph node involvement. Patients with rectal cancer were older and more likely to be men.
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