Which physical findings suggest acute infective endocarditis (IE)?

Updated: Jan 03, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

In approximately one third of patients with acute IE, murmurs are absent. The most common type is an aortic regurgitation murmur. Because of the suddenness of onset, the left ventricle does not have a chance to dilate. In this situation, the classic finding of increased pulse pressure in significant valvular insufficiency is absent.

Fever is always present, and it usually is high.

Janeway lesions are irregular erythematosus and painless macules (1-4 mm in diameter). They most often are located on the thenar and hypothenar eminences of the hands and feet. They usually represent an infectious vasculitis of acute IE resulting from S aureus infection.

Acute septic monoarticular arthritis in patients with acute IE most often is caused by S aureus infection.

Purulent meningitis may be observed in patients with acute IE, compared with the aseptic type observed in patients with subacute disease. Other neurological findings are similar to those observed in patients with subacute disease. [44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59]


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