https://www.selleckchem.com/products/ml324.html Platelet aggregation measured by impedance aggregometry is highly dependent on platelet count. We previously developed a tool to interpret impedance aggregometry based on the strong linear correlation between platelet counts and platelet aggregation at reduced platelet counts. The present study aimed to optimize the tool by expanding the model to include normal platelet counts. We combined data from three previous studies on 266 healthy individuals measuring impedance aggregometry with four agonists (collagen, adenosine diphosphate, thrombin receptor activating peptide-6, and ristocetin). Reduced platelet counts were established in vitro. The investigated platelet counts ranged from 26-425x109/L. A positive linear correlation was found between platelet counts and platelet aggregation across normal and reduced platelet counts (all p-values less then 0.001). We established 95% prediction intervals for healthy platelet aggregation in relation to platelet count. The new expanded model serves as an optimized tool for evaluation of platelet aggregation at normal and reduced platelet counts. The electrical coagulation of sphenopalatine artery(SPA) under nasal endoscopy has gradually become an important surgical intervention for epistaxis. To investigate the effectiveness and complications of SPA electrocoagulation for epistaxis. The clinical data of 47 patients undergoing SPA electrocoagulation were analyzed, retrospectively. Forty-seven patients were enrolled, with a male to female ratio of approximately 31. 11of 36 were under 45 years old, 25 of 36were 45 years old and above. Among female patients, one was under 45 years old, and the others were 45 years old and above, but there was no significant difference in gender composition between different age groups (  = 1.069,  = .301). All patients were unilateral epistaxis. The effective control rates of epistaxis within 24 h after surgery, early postoperative, and late postoper