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Bacterial endocarditis due to Haemophilus parainfluenzae.

We have evaluated three patients with Haemophilus parainfluenzae endocarditis. Two of the three had underlying heart disease. All presented with fever, chills and malaise of less than two weeks' duration. Mitral valve involvement led to congestive heart failure in two of three cases. Treatment proved difficult, despite normally adequate dosages of antibiotics to which the pathogens were sensitive in vitro (ampicillin, 12-20 gm/dag; gentamicin, 3-5 mg/kg/day). Two patients were cured; one died. There was a suggestion of an inverse correlation between vegetation mass and favorable clinical response. Review of the English literature disclosed 22 documented cases of H parainfluenzae endocarditis, including 12 in the antibiotic era.

Adolescent↗

Aneurysm of sinus of Valsalva: cause of dynamic coronary constriction after aortic valvular replacement and bacterial endocarditis.

A patient who had endocarditis on a prosthetic aortic valve and who had undergone two aortic valvular replacements developed classic angina pectoris. Cardiac catheterization revealed an aneurysm of the left sinus of Valsalva, which constricted a proximal segment of the left circumflex coronary artery during systole. This type of dynamic coronary arterial narrowing has not been previously described secondary to an aneurysm of a sinus of Valsalva and may be responsible for this patient's manifestations of ischemia.

Adult↗

Echocardiographic features of mitral obstruction due to bacterial endocarditis.

We describe a patient with mitral valvular obstruction due to vegetative endocarditis. The diagnosis was made before surgery by M-mode and two-dimensional echo-cardiograms, which revealed a mass of echoes obstructing the mitral orifice. This was confirmed subsequently at surgery. Both modes of echocardiography are of value in the noninvasive diagnosis of mitral valvular obstruction due to vegetative endocarditis, a condition which may be amenable to surgery for valvular replacement.

Aged↗

Native valve bacterial endocarditis due to Staphylococcus epidermidis. A community acquired infection following an acute course.

Staphylococcus epidermidis (SE) is the leading pathogen of prosthetic valve endocarditis. At the same time it is a very rare cause of native valve endocarditis and it follows a clinical course and outcome similar to Streptococcal viridans endocarditis. We report here the case of a 41-year-old man with a community acquired SE endocarditis of a native aortic valve. Despite early surgical intervention, the case followed an acute and fatal course.

Adult↗