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  • Title: Echocardiographic observations in opiate addicts with active infective endocarditis. Frequency of involvement of the various values and comparison of echocardiographic features of right- and left-sided cardiac valve endocarditis.
    Author: Andy JJ, Sheikh MU, Ali N, Barnes BO, Fox LM, Curry CL, Roberts WC.
    Journal: Am J Cardiol; 1977 Jul; 40(1):17-23. PubMed ID: 879007.
    Abstract:
    Echocardiographic observations are described in 25 opiate addicts with active infective endocarditis involving apparently previously normal valves. Infective endocarditis was isolated to the tricuspid valve in 11 patients, involved both right- (tricuspid valve) and left-sided valves in 7 and was isolated to the left-sided valves in 7 (mitral valve in 6). Twenty patients (80%) had tricuspid valve regurgitation, 12 had mitral regurgitation, 3 had aortic regurgitation and none had pulmonary valve regurgitation. Considering the 75 cardiac valves (excluding the pulmonary) in the 25 patients, echocardiographic abnormalities consistent with active infective endocarditis were detected in 26 (74%) of the 35 clinically incompetent valves but in none of the 40 competent valves. Comparison of the 20 incompetent tricuspid valves with the 12 incompetent mitral valves indicated that (1) the echocardiogram was less sensitive in detecting tricuspid valve lesions, (2) rupture of tricuspid valve chordae tendineae was absent or not detectable, and (3) tricuspid valve vegetations tended to be larger.
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