Culture-Negative Endocarditis Probably Due to Chlamydia pneumoniae

Abstract

A 59-year-old man had culture-negative endocarditis (clinical evidence compatible with endocarditis and histopathologic evidence of a recent episode of endocarditis) and serology compatible with a recent episode of Chlamydia pneumoniae infection. The conclusion was that this episode of culture-negative endocarditis was probably due to C. pneumoniae.

Culture-Negative Endocarditis Due to Chlamydia pneumoniae

“…Declining C. pneumoniae IgM titers during the observation period suggested primary infection. Our findings were in accordance with those of Marrie et al (13). Their patient had also shown declining IgM titers, whereas the patients described by other investigators had no IgM response, suggesting reinfection (4,15,16).…”

Culture-Negative Endocarditis Due to Chlamydia pneumoniae

“…Declining C. pneumoniae IgM titers during the observation period suggested primary infection. Our findings were in accordance with those of Marrie et al (13). Their patient had also shown declining IgM titers, whereas the patients described by other investigators had no IgM response, suggesting reinfection (4,15,16).…”

Antigenic Characterization of Chlamydia pneumoniae Isolated in Hiroshima, Japan

“…To date, C. pneumoniae TW-183 strain has been used to determine the antibodies against C. pneumoniae (1,7,13). In the present study, no or little antigenic difference was seen between TW-183 and YK-41, even though otherwise there was distinct difference in the EB morphology between these strains.…”

Serological cross-reactions between Bartonella and Chlamydia species: implications for diagnosis

“…An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”

“…Our present conclusion for these patients is that they probably suffered from Bartonella and not Chlamydia endocarditis. An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”

Culture-Negative Endocarditis Due to Chlamydia pneumoniae

“…Declining C. pneumoniae IgM titers during the observation period suggested primary infection. Our findings were in accordance with those of Marrie et al (13). Their patient had also shown declining IgM titers, whereas the patients described by other investigators had no IgM response, suggesting reinfection (4,15,16).…”

Antigenic Characterization of Chlamydia pneumoniae Isolated in Hiroshima, Japan

“…To date, C. pneumoniae TW-183 strain has been used to determine the antibodies against C. pneumoniae (1,7,13). In the present study, no or little antigenic difference was seen between TW-183 and YK-41, even though otherwise there was distinct difference in the EB morphology between these strains.…”

Serological cross-reactions between Bartonella and Chlamydia species: implications for diagnosis

“…An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”

“…Our present conclusion for these patients is that they probably suffered from Bartonella and not Chlamydia endocarditis. An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”

Culture-Negative Endocarditis Due to Chlamydia pneumoniae

“…Declining C. pneumoniae IgM titers during the observation period suggested primary infection. Our findings were in accordance with those of Marrie et al (13). Their patient had also shown declining IgM titers, whereas the patients described by other investigators had no IgM response, suggesting reinfection (4,15,16).…”

Antigenic Characterization of Chlamydia pneumoniae Isolated in Hiroshima, Japan

“…To date, C. pneumoniae TW-183 strain has been used to determine the antibodies against C. pneumoniae (1,7,13). In the present study, no or little antigenic difference was seen between TW-183 and YK-41, even though otherwise there was distinct difference in the EB morphology between these strains.…”

Serological cross-reactions between Bartonella and Chlamydia species: implications for diagnosis

“…An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”

“…Our present conclusion for these patients is that they probably suffered from Bartonella and not Chlamydia endocarditis. An additional patient supposedly suffering from Chlamydia endocarditis has been described by Marrie et al (26). Very recent serological investigations with the patient's serum also indicated that a Bartonella sp.…”