Sonographically measured perirenal fat thickness: An early predictor of atherosclerosis in HIV‐1‐infected patients receiving highly active antiretroviral therapy?
2010
Purpose.
The aim of our study was to evaluate whether perirenal fat thickness (PRFT), a parameter of central obesity, is related to carotid intima-media thickness (IMT), an index of atherosclerosis in human immunodeficiency virus (HIV)-1-infected patients.
Methods.
We enrolled 70 consecutive HIV-1-infected patients receiving highly active antiretroviral therapy for more than 12 months, in a prospective cohort study. Sonographically measured PRFT and carotid IMT, as well as serum metabolic parameters, were evaluated. PRFT and IMT were measured using 3.75-MHz convex and 7.5-MHz linear probes, respectively.
Results.
The mean PRFT and IMT in HIV-1-infected patients with visceral obesity was significantly greater than those in patients without it (p < 0.0001 and p < 0.01, respectively). Using the average IMT as the dependent variable in regression analysis, PRFT was an independent factor associated with carotid IMT (p < 0.05). A PRFT of 6.4 mm was the most discriminatory value for predicting an IMT ≥ 0.9 mm (sensitivity 83.3%, specificity 83.9%). Subjects with visceral obesity had a progressively increasing carotid IMT on the 12-month measurement (p < 0.05).
Conclusion.
Our data demonstrated that PRFT measurement could be used as an early predictor of IMT increase in HIV-1-infected patients receiving highly active antiretroviral therapy. © 2010 Wiley Periodicals, Inc. J Clin Ultrasound 2010
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