Unusual rapid progression of non-bacterial thrombotic endocarditis in a patient with bladder cancer despite undergoing intensification treatment with rivaroxaban for acute venous thromboembolism

Key Points

• The aim is to highlight an unusually fast progression of non-bacterial thrombotic endocarditis in a bladder cancer patient despite treatment.
• Case report detailing the patient's clinical history, treatment regimen, and disease progression.
• Patient received rivaroxaban as an intensification treatment for acute venous thromboembolism.
• The patient experienced rapid deterioration of symptoms related to non-bacterial thrombotic endocarditis.
• Despite rivaroxaban treatment, there was no improvement in the patient's condition, indicating treatment failure.