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Immunologic Biomarkers, Morbidity, and Mortality in Treated HIV Infection

Rosuvastatin slows progression of subclinical atherosclerosis in patients with treated HIV infection

Antiretroviral therapy for the prevention of HIV-1 transmission

HIV Transmission Risk Persists During the First 6 Months of Antiretroviral Therapy

Review of the Efficacy, Safety, and Pharmacokinetics of Raltegravir in Pregnancy

Use of Abacavir and Risk of Cardiovascular Disease Among HIV-Infected Individuals

Rosuvastatin Is Effective to Decrease CD8 T-Cell Activation Only in HIV-Infected Patients With High Residual T-Cell Activation Under Antiretroviral Therapy

Botswana's progress toward achieving the 2020 UNAIDS 90-90-90 antiretroviral therapy and virological suppression goals: a population-based survey

Empirical tuberculosis therapy versus isoniazid in adult outpatients with advanced HIV initiating antiretroviral therapy (REMEMBER): a multicountry open-label randomised controlled trial

Feasibility and efficacy of early lung cancer diagnosis with chest computed tomography in HIV-infected smokers

Patterns of Cardiovascular Mortality for HIV-Infected Adults in the United States: 1999 to 2013

Adjunctive Dexamethasone in HIV-Associated Cryptococcal Meningitis

Outcomes of HIV-associated Hodgkin lymphoma in the era of antiretroviral therapy

CD4+ and CD8+ T-cell kinetics in aviremic HIV-infected patients developing Hodgkin or non-Hodgkin lymphoma

CD8 T-Cell Expansion and Inflammation Linked to CMV Coinfection in ART-treated HIV Infection

Human Immunodeficiency Virus Infection Does Not Worsen Prognosis of Liver Transplantation for Hepatocellular Carcinoma

Ongoing HIV Replication Replenishes Viral Reservoirs During Therapy

Incidence and progression of coronary artery calcium in HIV-infected and HIV-uninfected men

Transient elastography for the detection of hepatic fibrosis in HIV-monoinfected adults with elevated aminotransferases on antiretroviral therapy

Association of immune-activation and senescence markers with non-AIDS-defining comorbidities in HIV-suppressed patients

Effects of randomized rosuvastatin compared with placebo on bone and body composition among HIV-infected adults

Levels of intracellular HIV-DNA in patients with suppressive antiretroviral therapy

Cancer Risk and Use of Protease Inhibitor or Nonnucleoside Reverse Transcriptase Inhibitor–Based Combination Antiretroviral Therapy The D:A:D Study

Time trends for risk of severe age-related diseases in individuals with and without HIV infection in Denmark: a nationwide population-based cohort study

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The effect of cumulating exposure to abacavir on the risk of cardiovascular disease events in patients from the Swiss HIV Cohort Study

Course and Clinical Significance of CD8+ T-Cell Counts in a Large Cohort of HIV-Infected Individuals

Impact of low-level viremia on clinical and virological outcomes in treated HIV-1-infected patients

HIV-1 subtype B-infected MSM may have driven the spread of transmitted resistant strains in France in 2007-12: impact on susceptibility to first-line strategies

Influence of the Timing of Antiretroviral Therapy on the Potential for Normalization of Immune Status in Human Immunodeficiency Virus 1–Infected Individuals

Cross-sectional Comparison of the Prevalence of Age-Associated Comorbidities and Their Risk Factors Between HIV-Infected and Uninfected Individuals: The AGEhIV Cohort Study

CD4/CD8 ratio normalisation and non-AIDS-related events in individuals with HIV who achieve viral load suppression with antiretroviral therapy: an observational cohort study

Baseline HIV-1 resistance, virological outcomes, and emergent resistance in the SECOND-LINE trial: an exploratory analysis

Effects of statin therapy on coronary artery plaque volume and high-risk plaque morphology in HIV-infected patients with subclinical atherosclerosis: a randomised, double-blind, placebo-controlled trial

Low Bone Mineral Density in Patients With Well-Suppressed HIV Infection: Association With Body Weight, Smoking, and Prior Advanced HIV Disease

Early versus delayed initiation of highly active antiretroviral therapy for HIV-positive adults with newly diagnosed pulmonary tuberculosis (TB-HAART): a prospective, international, randomised, placebo-controlled trial

A chronic kidney disease risk score to determine tenofovir safety in a prospective cohort of HIV-positive male veterans

Single-agent tenofovir versus combination emtricitabine plus tenofovir for pre-exposure prophylaxis for HIV-1 acquisition: an update of data from a randomised, double-blind, phase 3 trial

Predicting the outcomes of treatment to eradicate the latent reservoir for HIV-1

Increased Metabolic Activity on 18F-Fluorodeoxyglucose Positron Emission Tomography–Computed Tomography in Human Immunodeficiency Virus–Associated Immune Reconstitution Inflammatory Syndrome
Published by François RAFFI

Updated: 24 July, 2019

Hammoud DA, Clinical Infectious Diseases 2019 ; 68 :229-38

Background. Immune reconstitution inflammatory syndrome (IRIS) represents an unexpected inflammatory response shortly after initiation of ART in some HIV–infected patients with underlying neoplasia or OIs, including tuberculosis. We hypothesized that IRIS is associated with increased glycolysis and that 18F-fluorodeoxyglucose (FDG) positron emission tomography–computed tomography (PET/CT) could help identify high-risk subjects.

Methods. In this prospective cohort study, 30 HIV-infected patients (CD4+ count <100 cells/μL) underwent FDG-PET/CT scans at baseline and 4–8 weeks after ART initiation.
Ten patients developed IRIS (6 mycobacterial).

Results. At baseline, total glycolytic activity, total lesion volume, and maximum standardized uptake values (SUVs) of pathologic FDG uptake (reflective of opportunistic disease burden) were significantly higher in IRIS vs non-IRIS (P = .010, .017, and .029, respectively) and significantly correlated with soluble inflammatory biomarkers (interferon-γ, myeloperoxidase, tumor necrosis factor, interleukin 6, soluble CD14).
Baseline bone marrow and spleen FDG uptake was higher in mycobacterial IRIS specifically. After ART initiation, BM and spleen mean SUV decreased in non-IRIS (p = .004, .013) but not IRIS subjects. Our results were supported by significantly higher glucose transporter 1 (Glut-1) expression of CD4+ cells and monocytes after ART initiation in IRIS/mycobacterial IRIS compared with non-IRIS patients.

Conclusions. We conclude that increased pathologic metabolic activity on FDG-PET/CT prior to ART initiation is associated with IRIS development and correlates with inflammatory biomarkers. Abnormally elevated BM and spleen metabolism is associated with mycobacterial IRIS, HIV viremia, and Glut-1 expression on CD4+ cells and monocytes.