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  • Title: Gastrointestinal bleeding with continuous-flow left ventricular assist devices.
    Author: Amer S, Shah P, Hassan S.
    Journal: Clin J Gastroenterol; 2015 Apr; 8(2):63-7. PubMed ID: 25614135.
    Abstract:
    Continuous-flow left ventricular assist device (CF-LVAD) insertion is a life-saving procedure that is being increasingly used in patients with advanced heart failure. However, patients with CF-LVADs are at an increased risk of gastrointestinal bleeding (GIB). Bleeding can occur anywhere in the GI tract with lesions being more prevalent in the upper GI tract than in the lower GI tract. The pathophysiology of GIB in patients with CF-LVADs is unique and likely involves three synergistic mechanisms-coagulopathy, acquired von Willebrand disease and continuous non-pulsatile blood flow. Management strategies vary depending on the presentation and site of bleeding. Prevention strategies to prevent GIB in these patients include low pump speed, close hemodynamic monitoring and a low threshold for endoscopy. We aim to review in detail the pathophysiology, management, complications and preventive strategies in patients with CF-LVAD who present with GIB.
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