PT - JOURNAL ARTICLE AU - A. S. Breathnach AU - J. M. Hoare AU - S. J. Eykyn TI - Culture-negative endocarditis: contribution of bartonella infections. AID - 10.1136/hrt.77.5.474 DP - 1997 May 01 TA - Heart PG - 474--476 VI - 77 IP - 5 4099 - http://heart.bmj.com/content/77/5/474.short 4100 - http://heart.bmj.com/content/77/5/474.full SO - Heart1997 May 01; 77 AB - Two cases of bartonella endocarditis are described: one in a 55 year old homeless alcoholic man, caused by Bartonella quintana; the other in a 41 year old male with a history of exposure to cat fleas, caused by B henselae. Serological testing and polymerase chain reaction of the excised valves were used to identify the organisms. False positive serology for chlamydia was detected in one case.