D-dimer can be a diagnostic marker for cisplatin-related aor
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Cisplatin is one of the key drugs that is frequently used for treating various types of malignancies. Although renal and digestive toxicities are well-known cisplatin-related toxicities, attention should also be paid to acute aortic thrombosis, a relatively rare but potentially fatal disorder caused by cisplatin. Additionally, D-dimer is mainly measured to detect venous thromboembolism or disseminated intravascular coagulation, whereas its usefulness for detecting aortic thrombosis remains unclear. Here, authors report a case of squamous cell lung cancer treated with cisplatin-based chemotherapy, wherein acute aortic thrombosis was diagnosed based on elevated D-dimer levels.

A 65-year-old man with stage IV squamous cell lung cancer presented with elevated D-dimer levels during treatment with second-line chemotherapy with cisplatin and S-1. Contrast-enhanced computed tomography (CT) revealed an intramural thrombus, which had not been previously identified, extending from the abdominal aorta to the common iliac artery. Patient was diagnosed as having acute aortic thrombosis caused by cisplatin.

The patient received intravenous administration of unfractionated heparin for 9 days followed by oral warfarin. One month after initiating treatment, the patient's D-dimer levels decreased to the normal range, and contrast-enhanced CT revealed that the thrombi had nearly completely disappeared without any sequelae or organ damage.

These findings revealed that cisplatin can cause acute aortic thrombosis and that regular measurements of D-dimer levels before and during chemotherapy may contribute to the early detection of acute aortic thrombosis.

Source: https://journals.lww.com/md-journal/Fulltext/2021/02190/D_dimer_can_be_a_diagnostic_marker_for.49.aspx
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