Antineutrophil Cytoplasm Antibody-Associated Vasculitides Valvular Impairment: Multicenter Retrospective Study and Systematic Review of the Literature.

Endocarditis is a rare and potentially life-threatening manifestation of AAV. Acute valvular insufficiency may lead to urgent surgery. Implementing transthoracic echocardiography in standard assessment at baseline and follow-up of AAV might reduce the delay to diagnosis and allow earlier immunosuppressive treatment before surgery is needed.