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Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease
Published on: March 24, 2023
Fatty liver disease is associated with underlying cardiovascular disease in HIV-infected persons(*)
Nf Crum-Cianflone1, D Krause, D Wessman
1Infectious Disease Clinical Research Program, Uniformed Services University of the Health Sciences, Bethesda, MD, USA. nancy.crum@med.navy.mil
Insights
Fatty liver disease may indicate coronary atherosclerosis in HIV-infected adults. Early detection of fatty liver disease warrants cardiovascular disease assessment and risk factor management in this population.
Area of Science:
- Cardiology
- Hepatology
- Infectious Diseases
Background:
- Cardiovascular disease is a growing concern for individuals with HIV.
- Identifying markers for coronary atherosclerosis in this population is crucial.
Purpose of the Study:
- To determine if fatty liver disease is a marker for coronary atherosclerosis in HIV-infected adults.
- To evaluate the prevalence of and factors associated with subclinical coronary atherosclerosis.
Main Methods:
- Cross-sectional study of 223 HIV-infected adults.
- Computed tomography used for coronary artery calcium (CAC) and fatty liver disease assessment.
- Multivariate logistic regression analyzed factors associated with CAC.
Main Results:
- 34% of participants had positive CAC scores, indicating coronary atherosclerosis.
- 13% had fatty liver disease, which was significantly associated with higher CAC scores (P=0.001).
- Fatty liver disease was an independent predictor of CAC (OR 3.8; P<0.01).
Conclusions:
- Coronary atherosclerosis is common in young HIV-infected individuals.
- Fatty liver disease detection in HIV-infected adults necessitates evaluation for cardiovascular disease.
- Risk factor reduction is recommended for HIV-infected individuals with fatty liver disease.
Background:
Cardiovascular disease is an increasing concern among HIV-infected persons and their providers. We determined if fatty liver disease is a marker for underlying coronary atherosclerosis among HIV-infected persons.
Methods:
We performed a cross-sectional study in HIV-infected adults to evaluate the prevalence of and factors, including fatty liver disease, associated with subclinical coronary atherosclerosis. All participants underwent computed tomography for determination of coronary artery calcium (CAC; positive defined as a score >0) and fatty liver disease (defined as a liver-to-spleen ratio <1.0). Factors associated with CAC were determined using multivariate logistic regression models.
Results:
We included in the study 223 HIV-infected adults with a median age of 43 years [interquartile range (IQR) 36-50 years]; 96% were male and 49% were Caucasian. The median CD4 count was 586 cells/μL and 83% were receiving antiretroviral medications. Seventy-five (34%) had a positive CAC score and 29 (13%) subjects had fatty liver disease. Among those with CAC scores of 0, 1-100 and >100, the percentage with concurrent fatty liver disease was 8, 18 and 41%, respectively (P=0.001). In the multivariate model, CAC was associated with increasing age [odds ratio (OR) 4.3 per 10 years; P<0.01], hypertension (OR 2.6; P<0.01) and fatty liver disease (OR 3.8; P<0.01).
Conclusions:
Coronary atherosclerosis as detected using CAC is prevalent among young HIV-infected persons. The detection of fatty liver disease among HIV-infected adults should prompt consideration of assessment for underlying cardiovascular disease and risk factor reduction.
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