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Isolated Pulmonic Valve Endocarditis Caused by Group B Streptococcus ( Streptococcus agalactiae)A Case Report and Literature Review
The pulmonic valve is the least commonly involved valve in infective endocarditis. Pulmonic valve endocarditis is usually associated with tricuspid valve endocarditis, and isolated pulmonic valve endocarditis is exceedingly rare. The predisposing factors for developing pulmonic valve endocarditis include a congenitally anomalous pulmonic valve, intravenous drug abuse, and the presence of indwelling intravenous or flow-directed pulmonary artery catheters. More cases of group B streptococcus endocarditis are being reported. The risk factors for group B strepto coccus endocarditis include diabetes mellitus, cancer, alcoholism, malnutrition, immunocom promised status, intravenous drug abuse, postpartum and postabortion states, and underlying valvular disease. The vegetations of this type of endocarditis are usually large and have a higher tendency to result in embolism. The presentation of group B streptococcus endocarditis is usually acute and may result in rapid valve destruction if not treated promptly. A case of isolated pulmonic valve endocarditis caused by group B streptococcus, Streptococcus agalac tiae, is presented that was diagnosed with multiplane transesophageal echocardiography in a 40-year old, alcoholic, malnourished man, who was successfully treated with intravenous peni cillin G. The literature on the isolated pulmonic valve endocarditis caused by group B strepto coccus is reviewed.
Angiology, Vol. 52, No. 3,
211-215 (2001) |
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