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ASHM Report Back
Clinical posts from members and guests of the Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine (ASHM) from various international medical and scientific conferences on HIV, AIDS, viral hepatitis, and sexual health.
Peripheral Artery Disease in HIV
Peripheral Arterial Disease.
HIV infection and the risk of peripheral arterial disease; an observational, longitudinal cohort of HIV positive U.S. Veterans matched 1:2 with HIV- uninfected veterans matched for age, race, ethnicity and site. The sample was greater than 90,000.
The investigator presented data from 7 years of observation of this very large cohort. The participants were followed for peripheral arterial disease (PAD), death or their last follow up date.
Cumulative incidence of PAD was calculated and adjusted for confounders. A regression model was used to examine the association between HIV positivity, CD4 count and PAD after adjusting atherosclerotic risk.
In this study, the HIV positive veterans had significantly higher rates of peripheral arterial disease when compared with HIV uninfected veterans.
The speaker encouraged checking for ankle/feet pulses as PAD is often not diagnosed – this seems like a extraordinarily simple ‘practice-changing’ intervention for primary care.
An absence of a pulse should prompt vascular referral. Smoking cessation obviously remains a vital health intervention. A low CD4 cell count was also a strong predictor of PAD, with almost a 2-fold increase in the risk. Importantly, a CD4 count of greater than 500 showed no increase in risk. Lipid lowering treatment will be part of a future analysis and was not examined in this paper.