The presence of a catheter also increases the risk of VTE
Deep venous thrombosis (DVT) usually takes place in the legs, but it can also appear in the upper limbs, in the arms.
A recent study from the RIETE registry data, and published in Clinical and Applied Thrombosis/Hemostasis, has analyzed the differences between both locations of the thrombosis during anticoagulant therapy and has detected some different features.
Hence, people with a DVT in the arm of no known reason had more chances of recurrences of the thrombotic episode than those patients with a thrombosis in the leg with no known reason. However, incidence of pulmonary embolism and bleeding risk was similar in both cases.
Investigators also studied the differences between the thrombosis cases in the arm related with the presence or not of catheters. They found out that patients without catheter and without known cause of DVT, had a lower risk of pulmonary embolism and major bleedings when compared to cases with catheter or known cause.
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