Vena Cava Filters

Vena cava (Greenfield) filters are sometimes used to manage patients judged to be at high risk for life-threatening pulmonary embolism. However, their use can be complicated by massive vena cava thrombosis, including the renal veins, and other serious progression of venous thromboembolism, especially if pharmacological anticoagulation is not given (Sobel et al., 1988; Jouanny et al., 1993). In our opinion, these devices are risky in the setting of acute HIT, and we do not advocate their use.

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