The role of red blood cell distribution width to platelet ratio in predicting hemorrhagic transformation after mechanical thrombectomy therapy in acute ischemic stroke patients

Objective: Hemorrhagic transformation (HT) is common complication after mechanical thrombectory (MT) for acute ischemic stroke (AIS). To our knowledge, there has been no study on the correlation between baseline red blood cell distribution width (RDW) to platelet ratio (RPR) and HT after MT. Methods: This study recruited 126 AIS patients with anterior or posterior circulation large-vessel occlusion who underwent MT therapy at the Department of Neurology, Taizhou Hospital, Zhejiang province between September 2019 and April 2021. Patients were divided into two groups: patients with HT and those without HT (wHT), and their laboratory and clinical data were compared. Results: We found no significant differences in sex, age, alcohol consumption, diabetes mellitus, atrial fibrillation, neutrophil count, lymphocyte count, neutrophil-to-lymphocyte ratio (NLR), National Institutes of Health Stroke Scale (NIHSS) score, Alberta Stroke Program Early Computed Tomography Score (ASPECTS), whether intravenous thrombolysis was accepted, and TOAST classification between the two groups. Compared with patients without HT, we found that the admission blood glucose, RDW and RPR levels were higher in patients with HT after MT in AIS patients, multivariate logistic regression analysis revealed that baseline RPR (odds ratio (OR), 1.290; 95% CI, 1.062-1.567; P=0.010) and glucose level (OR, 1.177; 95% CI, 1.013-1.369; P=0.034) are independent predictors for HT after MT. Conclusion: Higher baseline RPR and higher admission blood glucose levels might be related to HT in AIS patients who received MT therapy.