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Sequencing of Bacterial Microflora in Peripheral Blood: our Experience with HIV-infected Patients
Published on: June 11, 2011
[Left-sided endocarditis in patients with HIV infection]
M E Valencia Ortega1, J Guinea Esquerdo, A Enríquez Crego
1Servicio de Enfermedades Infecciosas, Hospital Carlos III, Madrid.
Anales De Medicina Interna (Madrid, Spain : 1984)
|May 26, 1999
Summary
Left-sided endocarditis in HIV-infected patients is a serious issue, often affecting severely immunocompromised individuals. Diagnosis can be challenging due to negative blood cultures and high mortality rates.
Area of Science:
- Infectious Diseases
- Cardiology
- Immunology
Background:
- Left-sided endocarditis presents unique challenges in human immunodeficiency virus (HIV)-infected patients.
- The relationship between left-sided endocarditis and intravenous drug addiction in HIV patients remains unclear.
Purpose of the Study:
- To describe the clinical, epidemiological, and microbiological characteristics of left-sided endocarditis in HIV-infected patients.
- To investigate the outcomes and identify risk factors associated with this condition.
Main Methods:
- A retrospective analysis of 214 infective endocarditis episodes in 190 HIV-infected patients from 1986 to 1996.
- Detailed description of 34 cases (15%) with left-sided endocarditis, including patient demographics, clinical presentation, microbiological data, and outcomes.
Main Results:
- The study identified 34 cases of left-sided endocarditis in HIV patients, with a mean age of 30. Intravenous drug addiction (IVDA) was noted in 30 patients.
- Patients often presented with subacute symptoms, predominantly fever, and severe immunosuppression (mean CD4+ count 176/mm3). Mitral valve involvement was most common (91%).
- Blood cultures were frequently negative (62%), and Staphylococcus aureus was rarely isolated. Mortality was 18%, with a significant proportion experiencing complications.
Conclusions:
- Left-sided endocarditis is a severe complication in HIV-infected individuals, particularly those with advanced immunosuppression.
- Diagnosis is often difficult due to negative blood cultures, and the condition carries a high mortality rate.
- Further research is needed to understand the specific risk factors and optimize management strategies for this patient population.
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