Alteraciones lipídicas y riesgo cardiovascular asociado a la terapia antirretroviral

Metabolic syndrome in human immunodeficiency virus-infected patients

The objective of this study was to investigate the factors underlying the development of metabolic syndrome (MetS) in HIV-infected patients. Two hundred and sixty-six clinical cases were selected for a retrospective study. The sample was classified using the Adult Treatment Panel III guidelines and the identification of risk or protective factors associated with MetS evaluated via multivariate logistic or multinomial regressions. HIV-infected individuals diagnosed with MetS tend to be older, overweight, or obese (85% have a BMI ≥ 25), with a waist circumference > 90 cm (96.5 [88.8-105.5] cm, median [interquartile range]). Blood testing these individuals revealed high fasting levels of insulin (8.1 [5.8-21.6] pg/ml), glucose (98.0 [84.0-116.0] mg/dl), triglycerides (201.0 [142.0-267.3] mg/dl), and high-density lipoprotein cholesterol (36.5 [29.8-43.3] mg/dl) in addition with higher levels of inflammatory mediators such as high-sensitivity C-reactive protein (2.5 [1.0-4.9] mg/dl) and interleukin-6 (3.4 [2.8-3.8] pg/ml). The likelihood of HIV-infected individuals who are virally suppressed developing MetS is about 60% higher than those with acute infection. Treatment with nucleoside reverse transcriptase inhibitors (NRTIs) and protease inhibitors (PIs) increases the chance of developing MetS by around 2.4 times. Individuals with a lower antioxidant capacity (total antioxidant status [TAS] <1.33) have a 2.6 times higher risk of developing MetS. HIV-related chronic inflammation, a low TAS, and treatment with NRTIs in association with PIs are additional MetS risk factors.

Symptomatic profile of infected individuals with HIV/AIDS in a physiotherapy department

Abstract Introduction Changes in the profile of infected individuals with HIV and the chronicity of this condition become necessary a better understanding about the clinical changes caused by the disease. Objective This study characterizes the physical symptoms of infected individuals with HIV in a physiotherapy department of a specialized HIV treatment center. Methods A descriptive study with quantitative analysis was performed. All registered users in the physiotherapy department (138 individuals) from 2009 to 2013 were included. Data analysis considered absolute and relative frequencies of the variables of interest. Results Most patients were female (55%) and the mean age was 35.0 years (± 16.8). Most users were usingantiretroviral therapy and had 4 to 10 years (51.8%) of the HIV diagnosis. Many patients have comorbidities and the most prevalent was cerebral toxoplasmosis. The most common physical complaints were hemiparesis, pain, alteration in muscle tone and lipodystrophy. Conclusion According the symptomatic profile found, expanding the role of physiotherapists for infected individuals with HIV is necessary, since the physiotherapy has a wide range of preventive and therapeutic interventions that can increase functionality, independence level and social participation.

Availability of data on adverse reactions to antiretroviral drugs in medical charts according to the Naranjo algorithm: an example of a Brazilian historical cohort

BACKGROUND AND OBJECTIVE

Although not designed for research purposes, medical charts can be a unique source for obtaining information on long-term adverse drug reactions. This study aimed to assess the availability of key information on paper-based patient medical records needed to detect long-term adverse reactions to antiretroviral therapy (ART).

METHODS

This is an ongoing historical cohort study carried out in three public HIV/AIDS referral centers in Belo Horizonte, Brazil. Medical charts of treatment-naïve HIV-infected adult patients initiating ART between 2001 and 2005 were reviewed for a follow-up period of up to 5 years after the first ART prescription. Descriptive analysis was performed by estimating the absolute and relative frequencies of selected variables. The Naranjo algorithm was employed to assess the availability of data on long-term adverse outcomes in medical charts.

RESULTS

A total of 233 medical charts were eligible for study and 26.1% contained at least one long-term adverse reaction, corresponding to 45 cases of dyslipidemia (19.3%), 16 (6.9%) of lipodystrophy and 5 of type 2 diabetes mellitus (2.1%). Temporal relationship and ART switch could be better documented from medical charts. Information on reasons for ART switching and alternative causes for adverse reactions was very lacking.

CONCLUSIONS

Specific tools should be developed and included in medical routines to improve adverse reaction reporting by physicians and other health professionals. This could be implemented simultaneously with the transition from paper to electronic medical charts in Brazil, facilitating the identification of long-term adverse reactions to antiretroviral drugs in epidemiological studies and in clinical practice.

High-density lipoprotein cholesterol in HIV-infected patients: evidence for an association with HIV-1 viral load, antiretroviral therapy status, and regimen composition

Low high-density lipoprotein-cholesterol (HDL-C) levels have been associated with cardiovascular risk in non-HIV populations. Limited information exists on the prevalence of low HDL-C in HIV- infected patients and related factors remain largely unknown. The aims of this study were to estimate the prevalence and characteristics of low HDL-C levels in HIV-infected patients. A cross-sectional study was performed in consecutive HIV-infected patients cared for in an outpatient HIV clinic on the Mediterranean coast of Spain during a 2-month period (September 15, 2003 to November 15, 2003). HDL-C levels below 40 mg/dL were considered low. We analyzed data from 219 patients, 167 of whom were on antiretroviral therapy. The majority (45.20 %) were on non-nucleoside reverse transcriptase inhibitors (NNRTI); 22.83 % were on treatment with protease inhibitors. The prevalence of low HDL-C levels was 44.74 % (98 of 219 patients). In multivariate analysis, hypertriglyceridemia (triglycerides >150 mg/dL; odds ratio [OR], 5.65; 95% confidence interval [CI], 2.85-11.23; p = 0.0001), HIV-1 RNA viral load greater than 50 copies per milliliter (OR, 3.15; 95% CI, 1.63-6.109; p = 0.001) and antiretroviral therapy with regimens other than NNRTIs-based regimens (OR, 2.17; 95% CI, 1.12-4.16; p = 0.021) were associated with low HDL-C levels. These data indicate that prevalence of low HDL-C among HIV-infected patients from this cohort was very high. Low HDL-C was related to triglyceride levels, HIV-1 RNA viral load and antiretroviral therapy composition. Undetectable viral load and treatment with NNRTIs are protective factors, whereas hypertriglyceridemia is directly associated with low HDL-C levels.

Disorder in clotting pattern after antiretroviral treatment with emtricitabine in an HIV-positive haemophiliac patient

Hepatitis C virus and human immunodeficiency virus (HIV) co-infection is a major problem for haemophiliacs treated before 1985 with non-virally inactivated clotting factor concentrates. Over the past 10 years, the management of HIV infection has been better standardised by optimisation of highly active antiretroviral therapy, which leads to suppression of viral load and increases the number of CD4+ T cells. However, despite HIV infection being effectively controlled, patients experience short- and long-term adverse effects. This report describes a disorder in the clotting pattern with a decrease (approximately 60%) in the efficiency of antihaemophilic factor infusion after antiretroviral treatment with emtricitabine (a reverse transcriptase inhibitor) in an HIV-positive haemophiliac patient.

Resistencia insulínica en pacientes con infección por el VIH en tratamiento prolongado con efavirenz, lopinavir/ritonavir y atazanavir

BACKGROUND AND OBJECTIVE

To assess the presence of insulin resistance in human immunodeficiency virus (HIV)-infected patients receiving long-term antiretroviral therapy.

PATIENTS AND METHOD

Cross-sectional study in consecutive HIV-infected patients treated with regimens containing efavirenz, lopinavir/ritonavir or atazanavir. Insulin resistance was assessed by HOMA (Homeostasis Model Assessment).

RESULTS

We analyzed 47 patients, 18 on treatment with efavirenz, 17 with lopinavir/ritonavir and 12 with atazanavir. Patients treated with lopinavir/ritonavir had higher insulinemia than those treated with efavirenz (p = 0.007) or atazanavir (p = 0.020). The HOMA index was also higher in subjects treated with lopinavir/ritonavir than in those receiving efavirenz (p = 0.07) or atazanavir (p = 0.028). Insulin resistance was found in 5 (10.6%) patients, 4 among those receiving lopinavir/ritonavir, one among those treated with efavirenz and none among subjects receiving atazanavir (p = 0.065). In the logistic regression analysis, the antiretroviral regimen was associated with risk of insulin resistance.

CONCLUSIONS

A substantial number of patients on antiretroviral therapy may have insulin resistance according to the HOMA index. Alterations of the hydrocarbonated metabolism appear to be more likely to occur in patients receiving regimens with lopinavir/ritonavir.

Síndrome metabólico en pacientes infectados por el virus de la inmunodeficiencia humana en una cohorte del área mediterránea

BACKGROUND AND OBJECTIVE

The objective of this study was to estimate the prevalence and characteristics of the metabolic syndrome in patients with HIV infection from a Mediterranean cohort.

PATIENTS AND METHOD

Cross-sectional study performed in consecutive HIV-infected patients attended in an outpatient's HIV clinic at the Mediterranean coast of Spain. Metabolic syndrome was defined according to the International Diabetes Federation (IDF) new diagnostic criteria.

RESULTS

We analyzed data from 210 patients, 160 (76.19%) of whom were undergoing antiretroviral therapy. Most of them (47.14%) were receiving combinations of non-nucleoside reverse transcriptase inhibitors, whereas 22.8% of them were being treated with protease inhibitors. The prevalence of metabolic syndrome was 11.42% (95% CI, 6.89%-15.97%). Hypertriglyceridemia was present in 68 (32.38%) patients and low HDL-cholesterol levels were observed in 98 (46.6%). Body mass index [OR = 1.40; 95% CI, 1.21-1.62; p = 0.001] and age [OR = 1.062; 95% CI, 1.018-1.108; p = 0.001] were independently associated with metabolic syndrome.

CONCLUSIONS

Patients with HIV infection from this Mediterranean cohort had a low prevalence of metabolic syndrome. Body mass index and age are the main factors associated with this syndrome.