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Associations between antiretroviral use and subclinical coronary atherosclerosis.

Associations between antiretroviral use and subclinical coronary atherosclerosis.
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Thomas GP, Li X, Post WS, Jacobson LP, Witt MD, Brown TT, Kingsley L, Phair JP, Palella FJ,


Thomas GP, Li X, Post WS, Jacobson LP, Witt MD, Brown TT, Kingsley L, Phair JP, Palella FJ, (click to view)

Thomas GP, Li X, Post WS, Jacobson LP, Witt MD, Brown TT, Kingsley L, Phair JP, Palella FJ,

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AIDS (London, England) 2016 8 3()

Abstract
OBJECTIVES
HIV infection is associated with increased prevalence of subclinical coronary plaque. The extent to which such plaque reflects effects of HIV infection or effects of long-term antiretroviral (ART) use remains unclear and was the goal of this analysis.

DESIGN AND METHODS
We compared the prevalence and extent of coronary plaque and stenosis between users of specific ART drugs or drug classes using coronary computed tomography (CT) among HIV-infected men in the Multicenter AIDS Cohort Study. To account for time-dependent confounders, including cardiovascular disease (CVD) risk factors and time-varying reasons for using specific treatments, we conducted fully adjusted logistic and linear models with inverse probability of treatment weighting.

RESULTS
There were 618 men who underwent non-contrast coronary CT; 450 also underwent coronary CT angiography. At the time of scanning 81% had undetectable plasma HIV RNA. In fully adjusted models, cumulative use of zidovudine, abacavir, darunavir and protease inhibitors as a drug class were inconsistently associated with specific forms of plaque presence or extent.

CONCLUSIONS
Among virally suppressed HIV-infected men with extensive ART exposure, no consistent associations between use of specific ART drugs and both subclinical coronary plaque presence and extent were apparent. Our findings support the hypothesis that, among virally suppressed persons, type of ART used is not in general a major determinant of subclinical coronary plaque risk.

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