This study aims to examine the possible risk factors for severe postoperative sequelae following oncologic right colectomy. This retrospective analysis included all consecutive patients with right colon cancer who had right colectomy in our department from 1st Jan 2022 to 31st Dec 2023. The Clavien-Dindo grading system was employed to assess postoperative problems. Univariate and multivariate logistic regression analysis were done to look into risk variables for serious postoperative complications. Of the 21 patients, there were 10 males and 11 females, with a median age of 68 (IQR 60–78). Postoperative morbidity and mortality rates were 42.85% (9 patients) and 9.52% (2 patients), respectively. The anastomotic leak rate was 4.76% (1 patient). Severe postoperative complications (Clavien– Dindo grades III–V) were present in 3 patients (14.28%).

Univariate analysis showed the following as risk factors for postoperative severe complications:

Charlson score, lack of mechanical bowel preparation, level of preoperative proteins, blood transfusions, and degree of urgency (elective/emergency right colectomy). In the logistic binary regression, the Charlson score (OR = 1.932, 95% CI = 1.077– 3.463, p = 0.025) and preoperative protein level (OR = 0.048, 95% CI = 0.006–0.433, p = 0.007) were found to be independent risk factors for postoperative severe complications. Severe consequences after oncologic right colectomy are linked to a low preoperative protein level and a higher Charlson comorbidity index