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  • Title: Detection of endocarditis-associated perivalvular abscesses by two-dimensional echocardiography.
    Author: Ellis SG, Goldstein J, Popp RL.
    Journal: J Am Coll Cardiol; 1985 Mar; 5(3):647-53. PubMed ID: 3973262.
    Abstract:
    The development of a perivalvular abscess as a complication of infective endocarditis adds appreciably to the expected morbidity and mortality of patients, but such abscesses are seldom recognized by available noninvasive techniques. Therefore, two-dimensional echocardiographic findings in 22 patients with perivalvular abscess found at surgery or necropsy were compared with those in 24 patients without abscess in a retrospective but blinded study. Forty-six valves were examined (31 aortic and 15 mitral, 35 prosthetic and 11 native); 4.0 +/- 2.4 days (range 0 to 7) elapsed between echocardiography and surgery or necropsy. Patients with perivalvular abscess had a somewhat higher incidence of serious complications (emergency repeat valve replacement or death) than did patients with endocarditis alone (63 versus 35%, respectively, p less than 0.05). No single echocardiographic finding was frequently seen with a perivalvular abscess. A "typical" echo-free abscess was noted in only one patient; however, the presence of one or more of the following had a positive predictive value of 86% and a negative predictive value of 87% for the presence of perivalvular abscess: prosthetic valve rocking; sinus of Valsalva aneurysm, anterior aortic root thickness of 10 mm or greater, posterior aortic root thickness of 10 mm or greater or perivalvular density in a septum of 14 mm or greater. These predictive values, of course, apply only to patients with infective endocarditis going to surgery, and may assist the surgeon in knowing whether or not to expect an abscess.(ABSTRACT TRUNCATED AT 250 WORDS)
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