Assessing the prognostic value of HALP score in peripheral artery disease: Correlation with lesion severity and long-term mortality

Introduction Peripheral artery disease (PAD) poses a growing clinical challenge due to an aging population, despite advances in treatment methods. Various scoring systems have emerged to predict high-risk patients, including the HALP (hemoglobin, albumin, lymphocyte, and platelet) score, known for predicting prognosis in cancers and stroke. This study assesses the HALP score’s relation to lesion severity and long-term mortality in PAD patients. Methods We retrospectively analyzed 305 symptomatic PAD patients undergoing endovascular intervention. The following formula was used to calculate the HALP score: hemoglobin (g/L) × albumin (g/L) × lymphocyte count (/L) / platelet count (/L). Lesion severity was classified by TASC-II: TASC AB and TASC CD. Mortality data were obtained from hospital and social security records. Results The study involved 305 patients (mean age 64.4 ± 11.8 years; 72.1% male), divided into survivors (208) and non-survivors (97). ROC analysis identified HALP score as the strongest predictor of long-term mortality (AUC: 0.736; 95% CI: 0.679–0.793; p < .001). HALP score (HR, 0.087; 95% CI, 0.025–1.300; p < .001), age ( p < .001), DM ( p = .007), and CRP ( p = .013) independently predicted mortality. Kaplan–Meier analysis showed higher HALP scores linked to lower long-term mortality (Log-rank: 20.102, p < .001), with an average follow-up of 48 ± 18 months. Conclusion The HALP score emerged as a robust predictor of PAD prognosis, surpassing individual components and other parameters. Lower HALP scores correlated with more severe lesions and reduced life expectancy.