Background/Objectives: Emergency surgery for complicated colon cancer carries high morbidity and mortality, largely driven by systemic inflammation and organ dysfunction. This study aims to investigate the predictive value of preoperative inflammatory biomarkers for postoperative outcomes. Methods: We retrospectively analyzed 219 patients undergoing emergency surgery for complicated colon cancer. Patients were classified as uncomplicated (n = 164) or complicated (Clavien–Dindo ≥ IIIA; n = 55). Preoperative clinical data, comorbidity indices, laboratory values, and inflammatory markers: C-reactive protein (CRP), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII) were assessed. Logistic regression and ROC (Receiver Operating Characteristic) curves analyses identified predictors of Clavien Dindo complications graded as IIIA or higher, anastomotic leak (AL), and in-hospital mortality. Results: Most patients included in the study were males (75.02%), with a mean age of 69.63 (±11.54) years. Patients included in the complicated group had higher comorbidity burden, ASA (American Society of Anesthesiologists) grade, rates of diabetes, organ failure, and systemic inflammatory response. All inflammatory biomarkers were significantly elevated in the complicated group (p < 0.001). CRP (>62.8 mg/dL), NLR (>6.89), and PLR (>334.2) showed good discrimination for Clavien Dindo complications graded as IIIA or higher, with AUC (area under curve) ranging from 0.726 to 0.799. A multivariable model including Charlson Comorbidity Index (CCI), CRP, PLR, and diabetes predicted Clavien–Dindo ≥ IIIA complications with excellent accuracy (AUC 0.870). PLR, creatinine, and diabetes independently predicted AL (AUC 0.834). Mortality (20.5%) was strongly associated with peritonitis, CRP, and NLR (AUC 0.891). Conclusions: Preoperative inflammatory biomarkers, combined with comorbidity and renal function, reliably predict adverse outcomes after emergency colon cancer surgery. Multivariate models may be useful for early risk stratification and support individualized perioperative management.

Background: Acute malignant colorectal obstruction requires urgent management, traditionally by emergency resection or stoma formation. Colonic stenting as a bridge to surgery (BTS) has emerged as an alternative, but concerns persist regarding oncologic safety. This systematic review evaluates short-term and long-term outcomes of BTS with self-expanding metal stents (BTS-stent) compared with acute resection (AR). Methods: A systematic review was conducted on multiple databases. PubMed, Cochrane Library, and Google Scholar were searched for studies published between 2015 and 2025 reporting surgical management of obstructive colon cancer. Outcomes included perioperative morbidity and mortality, laparoscopic conversion, stoma formation, stent-related complications, and long-term overall survival (OS) and disease-free survival (DFS). Data were synthesized descriptively with reference to reported comparative effects and prior meta-analyses. Results: Fifteen studies published between 2015 and 2025 were included, encompassing 6999 patients (AR: 4944; BTS-stent: 1739; other BTS: 311). BTS was associated with higher rates of laparoscopic surgery (57% vs. 14%) and primary anastomosis, and significantly reduced stoma formation (27% vs. 60%). Postoperative morbidity and 30-day mortality were lower or comparable in BTS cohorts (4.9% vs. 7.8%). SEMS technical success ranged from 78 to 97%, with perforation rates of 0–15%, representing the main adverse event. Long-term outcomes were comparable between groups. Five-year OS ranged from 46 to 75% (BTS) and 46 to 74% (AR), with similar DFS. Subgroup data suggested possible worse outcomes in T4 tumors and improved results in selected stage III patients. Delayed surgery (>4 weeks) may improve survival, but increases complication risk. Conclusions: BTS with SEMS improves short-term outcomes without compromising long-term survival. Careful selection and avoidance of perforation are essential.