First known case of Bartonella quintana endocarditis in Sweden

Ehrenborg, Christian; Hagberg, Svante; Aldén, Jakob; Mäkitalo, Signar; Myrdal, Gunnar; Larsson, Erik; Hjelm, Eva; Friman, Göran

doi:10.1080/00365540802477889

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…or Coxiella burnetii, which have been reported at centres in Southern Europe 8 but not from Northern Europe 22 ; only one case of Bartonella endocarditis has previously been reported from Sweden. 23 The valve culture yield was low in this study, in only 16% the results were concordant with blood cultures or PCR. It should be questioned if this method it should be recommended when 16S rDNA analysis is available.…”

Section: Discussionmentioning

confidence: 44%

16S rDNA sequencing of valve tissue improves microbiological diagnosis in surgically treated patients with infective endocarditis

Vondracek

Sartipy

Aufwerber

et al. 2011

Journal of Infection

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Section: Discussionmentioning

confidence: 44%

16S rDNA sequencing of valve tissue improves microbiological diagnosis in surgically treated patients with infective endocarditis

Vondracek

Sartipy

Aufwerber

et al. 2011

Journal of Infection

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“…Only one episode of IE that was caused by C. burnetii ( 20 ) and one episode of IE that was caused by Bartonella spp. ( 22 ) have been reported in Sweden, and we found no cases of either in our cohort. Two episodes of T. whipplei IE were diagnosed through 16S-analyses and, for these patients, the treatment was much affected by this microbiological finding.…”

Section: Discussioncontrasting

confidence: 54%

Clinical Significance of a 16S-rDNA Analysis of Heart Valves in Patients with Infective Endocarditis: a Retrospective Study

et al. 2023

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This work demonstrates that it can be of importance to perform both cultures and analysis using 16S-rDNA PCR and sequencing of valves excised from patients undergoing surgery for infective endocarditis. 16S-analysis may help both to establish a microbiological etiology in cases of blood culture negative endocarditis and to provide help in situations where there are discrepancies between valve and blood cultures. In addition, our results show a high degree of concordance between blood cultures and 16S-analyses, indicating that the latter has a high sensitivity and specificity for the etiological diagnosis of endocarditis in patients who were subjected to heart valve surgery.

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“…In this report, the positive titre for anti- B. quintana antibodies (1 : 128) was unexpected, since clinical infections with the bacteria are uncommon [17, 18] and it has not been associated with cat bites previously in Sweden [19, 20]. Infections caused by B. quintana are exclusively seen in patients with actual or recent contact with body lice [21].…”

Section: Discussionmentioning

confidence: 96%

Cat-bite-induced Francisella tularensis infection with a false-positive serological reaction for Bartonella quintana

Petersson¹,

Athlin

2017

JMM Case Reports

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Introduction. Tularaemia is caused by infection with Francisella tularensistransmitted via direct contact with an infected hare carcass or indirectly through the bites of vectors, but may be cat-bite-associated as well. Medical history and reliable diagnostic analysis are important in order to differentiate it from other cat-associated infections, e.g. Bartonella spp.Case presentation. A healthy 56-year-old man was examined because of a cat-bite-associated ulceroglandular wound on his right thumb. Nineteen days after the cat bite occurred, a serology test was positive for anti-Bartonella quintana, but negative for anti-F. tularensis. Since Bartonella infections are rare in Sweden, another serology test was analysed 2 weeks later with a positive result for anti-F. tularensis. The patient was treated with doxycycline for 14 days and recovered. The patient was re-sampled after 18 months to obtain a convalescent sample. The acute and the convalescent samples were both analysed at a reference centre, with negative results for anti-Bartonella spp. this time.Conclusion. This case is enlightening about the importance of extending the medical history and re-sampling the patient for antibody detection when the clinical suspicion of cat-bite-associated tularaemia is high. The false-positive result for anti-B. quintana antibodies may have been due to technical issues with the assay, cross-reactivity or both.

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First known case of Bartonella quintana endocarditis in Sweden

Cited by 9 publications

References 10 publications

16S rDNA sequencing of valve tissue improves microbiological diagnosis in surgically treated patients with infective endocarditis

16S rDNA sequencing of valve tissue improves microbiological diagnosis in surgically treated patients with infective endocarditis

Clinical Significance of a 16S-rDNA Analysis of Heart Valves in Patients with Infective Endocarditis: a Retrospective Study

Cat-bite-induced Francisella tularensis infection with a false-positive serological reaction for Bartonella quintana

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