The Systemic Inflammatory Response Index as a Novel Diagnostic Tool for Acute Appendicitis

Area of Science:

• Medical Diagnostics
• Inflammatory Markers

Background:

• Appendicitis diagnosis relies on clinical evaluation, imaging, and lab tests.
• Distinguishing uncomplicated from complicated appendicitis is crucial for treatment decisions.

Purpose of the Study:

• To evaluate the diagnostic accuracy of the Systemic Inflammatory Response Index (SIRI) for appendicitis.
• To compare SIRI's utility against existing methods like the Alvarado score.
• To assess SIRI's effectiveness in differentiating uncomplicated from complicated appendicitis.

Main Methods:

• A cross-sectional study enrolled 240 patients diagnosed with appendicitis.
• Data collected included demographics, clinical findings, complete blood count (CBC), Alvarado score, SIRI, sonography, and pathology.
• Statistical analysis was performed using SPSS version 26.

Main Results:

• SIRI showed significant differences across pathology groups (P<0.0001).
• SIRI effectively discriminated between normal and complicated appendicitis (P=0.005) and normal and combined appendicitis (P=0.008).
• Alvarado scores also demonstrated significant differences, particularly between normal and complicated appendicitis groups.

Conclusions:

• SIRI and Alvarado scoring systems show promise for diagnosing appendicitis with good sensitivity and specificity.
• Both systems may aid in differentiating uncomplicated from complicated appendicitis, guiding clinical management.