Congestive heart failure--a diagnostic approach.
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Biomedical subjects
Publications and source records attributed to T M Wray.
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During a 14 month period 59 male patients with chronic renal failure who were candidates for chronic hemodialysis (HD) were evaluated clinically and echocardiographically for pericarditis. All were evaluated prospectively prior to or at the initiation of HD. Definite pericarditis was present in 8, all of whom were severely uremic and required initiation of HD on a semiemergent basis rather than electively (i.e., preselected level of renal function). In 6 of these 8, pericardial effusion responded to dialysis alone, one required pericardiectomy because of hypotension complicating dialysis, and one expired during a right atriogram. Patients dialyzed on an elective basis were all free of pericarditis at the initiation of HD. Pericarditis arising some months after the initiation of HD was a less frequent problem. It is concluded that (a) the incidence of pericarditis in the uremic state is decreased by early initiation of HD before advanced uremic symptoms have developed; (b) pericarditis present at the initiation of HD usually but not always is resolved with the initiation of HD; (c) echocardiography is an important clinical and epidemiological toole to investigate pericarditis in uremic patient populations.
This report describes the echocardiographic features seen in a case of bacterial endocarditis in which the aortic valve leaflets had been partially destroyed. The endocardiogram demonstrated unusual, disorganized echo patterns in the outflow tract of the left ventricle near the anterior leaflet of the mitral valve in diastole. These were shown to be continuous with similar disorganized echo patterns demonstrated in the aortic root in diastole. These echocardiographic abnormalities were no longer present after aortic valve replacement.
The echocardiographic abnormalities in five cases of aortic valve endocarditis are described and are correlated with the anatomical appearance of the valve at the time of aortic valve replacement. These electrocardiographic findings are compared with those which have been reported previously in this condition. Thickening of the aortic leaflets in systole or multiple linear or coalescent aortic valve echoes in diastole are highly suggestive of valvular vegetations. Ruptured aortic leaflets may produce chaotic, high-frequency echo patterns which differ from those produced by vegetations. The specificity of these echocardiographic patterns is discussed.
A case of fatal dissection of the aorta fifteen years following successful surgical repair of aortic coarctation is reported. Histologic secretions of the wall of the proximal aortic segment showed significant thickening and degenerative changes in the media which were not present in the distal aortic segment. This suggests that irreversible structural changes may have occurred prior to surgical repair of the coarctation and supports the view that early surgical repair of this condition is desirable.
A large pericardial hematoma caused profound hypoxia, cyanosis, and hypotension in a patient who had sustained trauma in an automobile accident. Angiographic and cardiac catheterization findings suggested intracardiac obstruction at the level of the tricuspid valve. This case emphasizes that localized accumulations of blood or fluid within the pericardial space can simulate intracardiac masses or valve obstruction. Partial pericardiectomy was curative in this patient.
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