Diagnostic Significance of Delta Neutrophil Index and Hematology Parameters for Acute Appendicitis in Pregnant Women
摘要
This study evaluated the diagnostic value of the delta neutrophil index and related hematological parameters in distinguishing acute appendicitis between pregnant and non-pregnant women. This retrospective single-center analysis conducted between January and October 2024 included 34 pregnant and 81 non-pregnant patients with histopathologically confirmed appendicitis. Preoperative hematological and biochemical parameters, including white blood cell count, neutrophil and lymphocyte counts, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, delta neutrophil index (DNI), C-reactive protein, alanine aminotransferase, aspartate aminotransferase, and gamma-glutamyl transferase were compared using the Mann–Whitney U test. Median age did not differ between groups (27 [22–30] years vs. 27 [22–30] years; p = 1.000). Pregnant patients had higher neutrophil percentages (81.8 [78.7–86.3] vs. 78.9 [73.3–83.9]; p = 0.020), higher neutrophil-to-lymphocyte ratio (7.68 [5.36–12.65] vs. 5.80 [3.96–7.61]; p = 0.008), and higher delta neutrophil index values (0.06 [0.04–0.10] vs. 0.05 [0.04–0.06]; p = 0.023; DNI%: 0.4 [0.3–0.6] vs. 0.3 [0.3–0.4]; p = 0.003). Lymphocyte counts, lymphocyte percentages, platelet counts, and gamma-glutamyl transferase levels were lower in pregnant patients (all p < 0.05). No significant differences were observed in white blood cell count, neutrophil count, C-reactive protein levels, or appendiceal diameter. Delta neutrophil index, neutrophil-to-lymphocyte ratio, and neutrophil percentage may serve as useful auxiliary indices for the diagnosis of acute appendicitis during pregnancy, particularly in settings where imaging is not readily available.