Case series of Bartonella quintana blood culture-negative endocarditis in Washington, DC.
Citation: JMM Case Reports. 3(4):e005049, 2016 AugPMID: 28348772Institution: MedStar Washington Hospital CenterDepartment: Medicine/Infectious DiseasesForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: PubMed-not-MEDLINE -- Not indexedYear: 2016ISSN:- 2053-3721
Item type | Current library | Collection | Call number | Status | Date due | Barcode |
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Journal Article | MedStar Authors Catalog | Article | 28348772 | Available | 28348772 |
CASE PRESENTATION: We constructed a descriptive case series from a retrospective review of medical records from April to December 2013 at an 800-bed urban hospital. All three patients (ages: 52, 55 and 57 years) were undomiciled/homeless men with a history of alcoholism. Although they had negative blood cultures, echocardiography demonstrated aortic/mitral valve perforation and regurgitation in one patient, aortic/mitral valve vegetation with mitral regurgitation in the second patient, and aortic valve vegetation with regurgitation in the third patient. The patients had positive Bartonella quintana serum immunoglobulin G (IgG) with negative immunoglobulin M (IgM). PCR on DNA extracted from cardiac valves was positive for Bartonella, and DNA sequencing of PCR amplicons identified Bartonella quintana. Patients received treatment with doxycycline/rifampin or doxycycline/gentamicin.
CONCLUSION: Clinicians should consider Bartonella endocarditis as a differential diagnosis in patients who fit elements of the Duke Criteria, as well as having a history of homelessness and alcoholism.
INTRODUCTION: Prior studies (predominantly from Europe) have demonstrated blood culture-negative endocarditis due to Bartonella. Our objective was to describe three cases of Bartonella quintana endocarditis identified within one year at a large hospital in Washington, DC, USA.
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