Bartonella quintana and Coxiella burnetii as Causes of Endocarditis in India
Author Information
Author(s): Balakrishnan Nandhakumar, Menon Thangam, Fournier Pierre-Edouard, Raoult Didier
Primary Institution: University of Madras
Hypothesis
The study aimed to identify fastidious agents of blood culture–negative endocarditis by serology.
Conclusion
The study found that zoonotic agents, especially Bartonella spp., are prevalent causes of blood culture–negative endocarditis in India.
Supporting Evidence
- 72% of the patients had negative blood cultures.
- 8% of all infectious endocarditis cases were caused by C. burnetii and Bartonella spp.
- Rheumatic heart disease was the most common predisposing factor.
Takeaway
Doctors in India found that many people with heart infections didn't show bacteria in their blood tests, and some of these infections were caused by germs from animals.
Methodology
Blood samples were collected from patients diagnosed with infectious endocarditis, and serologic testing was performed to identify causative agents.
Potential Biases
Potential bias due to the study's focus on a single hospital and specific patient demographics.
Limitations
The study was limited to a specific geographic area and may not represent the broader population.
Participant Demographics
Patients included 30 males and 33 females, aged 5 to 65 years, with a mean age of 25.5 years.
Digital Object Identifier (DOI)
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