THE ROLE OF C-REACTIVE PROTEIN (CRP) IN THE EARLY DIAGNOSIS OF ANASTOMOTIC LEAKAGE FOLLOWING PRIMARY REPAIR IN GASTROINTESTINAL SURGERY

Despite advancements in surgical procedures, Anastomotic leakage (AL) remains a common complication following gastrointestinal surgery. It carries a high rate of morbidity and mortality, increases the cost of treatment, and leads to further interventions and delayed recovery. As surgical practice advances, AL becomes a significant obstacle for gastrointestinal surgeons worldwide (Smith et al., 2023). The rate of AL depends on the type of operation, the location of the anastomosis, the disease itself, the method of surgery, and patient-related factors. Patient factors that contribute to AL include malnutrition, diabetes mellitus, smoking, obesity, steroid use, emergency operations, and poor blood flow to tissues (Johnson and Lee, 2024). Even though AL begins with a small lesion in the area of the anastomosis, it can lead to extensive intra-abdominal sepsis, multiple organ failure, and death due to late diagnosis. Furthermore, in cases of oncological surgery, AL can negatively impact long-term outcomes because of delay in adjuvant treatment and increased recurrence (Brown et al., 2025). Early identification of AL is quite challenging because postoperative symptoms are nonspecific and may resemble the common inflammatory reaction after major surgery. Symptoms including fever, tachycardia, abdominal pain, ileus, leukocytosis, or purulent drainage usually become visible only when the condition is already at an advanced stage. Radiologic tests including contrast-enhanced CT are effective methods in identifying complications. However, using these techniques in every patient after major surgery is neither feasible nor economical, and some early cases may be overlooked (Wilson et al., 2023).