Evaluation of AT in acute pulmonary embolism with pleural effusion

<b>Aim:</b> We aimed to investigate whether there is a correlation between AT and pleural effusion in PE patients.<b>Materials & methods:</b> We retrospectively enrolled 325 patients aged 66.26 ± 14.86 years with acute PE in 256-computed tomography pulmonary angiography (CTPA) from 2015 to 2022 and recorded radiographic, clinical and biomarker data, the patients were divided into two groups, PE with pleural effusion group (178 patients) and PE without pleural effusion group (147 patients), odds ratios (OR) were estimated for AT of pleural effusion in PE.<b>Results:</b> A lower AT had a significantly increased risk of pleural effusion (adjusted OR: 2.009, 95% CI: 1.225-3.295).<b>Conclusion:</b> AT are reduced in PE patients with pleural effusion and are associated with the risk of pleural effusion.