Evaluation of systemic immune and inflammatory biomarkers in hidradenitis suppurativa

OBJECTIVE: We aimed to investigate the interrelation of HS with CBC parameters and new inflammatory indicator parameters, systemic immune-inflammation index (SII), and systemic inflammation response index (SIRI). PATIENTS AND METHODS: 102 patients diagnosed with HS and 99 healthy controls were included. The medical records and laboratory findings of the participants were reviewed retrospectively. Patients and control group neutrophil, lymphocyte, monocyte, and platelet counts, neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), monocyte-lymphocyte ratio (MLR), mean platelet volume (MPV), plate-let distribution width (PDW) and red cell distribution width coefficient of variation (RDW), SII and SIRI were compared. RESULTS: The patient and control groups differed significantly concerning CRP, neutrophil count, lymphocyte count, monocytes count, platelet count, PLR, and MHR (p<0.05), whereas the mean of MPV and NLR did not show a significant difference in control individuals. SII and SI-RI were significantly higher in patients with HS than in controls (p=0.005, p<0.001). Correlation analyses of SII and SIRI with each other and CRP were performed. It was deter-mined that SIRI had a moderate correlation with CRP (r=0. 346, p<0.001). The correlation be-tween SII and CRP was low (r=0.256, p<0.001). In addition, we analyzed the correlation between SII and SIRI and we determined a high level of correlation (r=0.675, p<0.001). CONCLUSIONS: Our study has objectively demonstrated that SII and SIRI are more reliable biomarkers than other inflammation parameters in HS patients. Thus, SII and SIRI would be used to evaluate treatment response and follow-up in HS as new indicators.