Document Type : Original Article
Authors
Department of Dermatology, Venereology and Leprosy, Shri B M Patil Medical College, Hospital and Research Centre, BLDE (Deemed to be) University, Vijayapur, Karnataka, India
Abstract
Background: Atopic dermatitis (AD) is a prevalent, chronic, inflammatory skin disorder that primarily affects children, with just a few cases persisting into adulthood. Many theories exist to ascertain the relationship between atopic dermatitis and systemic inflammation. Neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR), and Mean platelet volume (MPV) are biomarkers of systemic inflammation, which in turn are related to atopic dermatitis. The present study aimed to assess the association between atopic dermatitis and NLR, PLR, and MPV values by calculating NLR, PLR, and MPV ratio and correlating their levels with the disease duration and severity of AD in pediatric atopic dermatitis.
Methods: This cross-sectional study included 165 pediatric atopic dermatitis patients who met the clinical confirmation criteria of the U.K. working party. The patients with co-existing conditions such as molluscum contagiosum, impetigo, hand-foot and-mouth disease, and eczema herpeticum were excluded. The mean ± SD values of NLR, PLR, and MPV were compared after the severity groups were classified using SCOR Atopic Dermatitis (SCORAD). The association of SCORAD and disease duration with NLR, PLR, and MPV levels was evaluated.
Results: Significant differences were noted between severity groups based on NLR, PLR, and MPV values. PLR and NLR had a positive correlation with the SCORAD score, whereas MPV was negatively correlated. In addition, NLR had a positive correlation with disease duration. PLR exhibited a higher diagnostic accuracy in predicting high SCORAD with a 100% sensitivity and specificity cut-off value of > 172.
Conclusion: NLR, PLR, and MPV were cost-effective, feasible, andwidely available tests to detect systemic inflammation in AD with high sensitivity and specificity.
Keywords
)