All patients with suspected Gram-negative endocarditis should undergo transesophageal echocardiography (TEE) to confirm the diagnosis and assess for cardiac complications such as intracardiac ...

Expert Rev Anti Infect Ther. 2010;8(8):879-885. In summary, endocarditis with non-HACEK Gram-negative bacilli should be a consideration in patients with history of injection drug use or bacteremia ...