ESTUDO DA SOBREVIDA DE PACIENTES COM CÂNCER COLORRETAL APÓS SEGUIMENTO DE TRÊS ANOS.

Colorectal cancer (CRC) is a common malignant tumor of the digestive system and the fourth leading cause of cancer in Brazil. Life expectancy for individuals with CRC is influenced by several variables, particularly the tumor stage. Surgery is the primary treatment method with curative potential. The study aimed to analyze survival rates and the incidence of anastomotic complications in patients undergoing surgery for CRC treatment, monitored between January 2007 and January 2013. A descriptive case series study was conducted, involving 171 individuals. CRC survival time was the dependent variable, while independent variables included age, gender, anatomical tumor location, tumor infiltration, and lymph node metastasis. The overall survival rates of CRC patients at 12, 24, and 36 months of follow-up were 83.21%, 76.56%, and 63.47%, respectively. The presence of lymph node involvement and the level of tumor infiltration were associated with unfavorable prognoses. The most frequent tumor sites were the upper rectum and sigmoid colon (43.75%), followed by the mid-rectum (18.75%) and lower rectum (18.75%). The most common postoperative complication was anastomotic dehiscence (6.43%). In conclusion, tumor infiltration of the intestinal mucosa and the number of positive lymph nodes had a negative impact on the life expectancy of CRC patients. Anastomotic fistula was identified as the primary postoperative complication.