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Updated: Jul 18, 2026

Processing of Bronchoalveolar Lavage Fluid and Matched Blood for Alveolar Macrophage and CD4+ T-cell Immunophenotyping and HIV Reservoir Assessment
Published on: June 23, 2019
[Pulmonary hypertension in HIV patients]
1Klinik III für Innere Medizin, Universität zu Köln, Joseph-Stelzmann-Strasse 9, 50924 Köln. Henrik.ten-Freyhaus@uk-koeln.de
HIV-associated pulmonary artery hypertension (PHT) affects 7.5% of HIV patients, often asymptomatic. The drug bosentan showed significant clinical improvement in a trial, but further research on other treatments is needed.
Area of Science:
- Cardiology
- Infectious Diseases
- Pulmonology
Background:
- HIV-associated pulmonary artery hypertension (PHT) is significantly more common and severe than idiopathic PHT.
- Approximately 7.5% of HIV-positive individuals exhibit PHT, with half being asymptomatic.
- Limited therapeutic options and a poor prognosis characterize HIV-PHT.
Purpose of the Study:
- To review the prevalence and current treatment landscape of HIV-associated pulmonary artery hypertension (PHT).
- To highlight the findings of the BREATH-4-Trial on bosentan treatment for HIV-PHT.
- To identify the need for further research into alternative therapeutic strategies.
Main Methods:
- Literature review focusing on prevalence data and clinical trials for HIV-PHT.
- Analysis of echocardiographic criteria for PHT diagnosis in HIV patients.
- Evaluation of treatment outcomes from the BREATH-4-Trial.
Main Results:
- PHT is 1000 times more frequent in HIV patients compared to the general population.
- Bosentan, an endothelin-receptor antagonist, demonstrated significant improvements in NYHA functional class and walking distance in the BREATH-4-Trial.
- A substantial portion of HIV patients with PHT remain asymptomatic.
Conclusions:
- HIV-associated PHT is a prevalent condition with a worse prognosis than idiopathic PHT.
- Bosentan offers a viable treatment option for symptomatic HIV-PHT, improving clinical parameters.
- Further clinical trials are essential to investigate prostanoids and phosphodiesterase-5 inhibitors for HIV-PHT management.
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