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Evaluation of Subtle Left Ventricular Systolic Dysfunction by Longitudinal Systolic Strain in Patients with Human Immunodeficiency Virus.

Background: Although left ventricular systolic dysfunction (LVSD) is a major cause of morbidity in human immunodeficiency virus (HIV)-infected patients, there is limited data on cardiac functions of these patients. Compared to the conventional echocardiography, the global longitudinal strain (GLS) can detect subclinical myocardial dysfunction at an earlier stage.

Objectives: In our study, we aimed to evaluate left ventricular systolic functions using the GLS in HIV-infected patients and to investigate the effect of cluster of differentiation 4 T-cell values on LVSD.

Methods: This prospective, case-control study included a total of 65 HIV-infected patients and 48 healthy volunteers. Conventional and strain echocardiography were performed on all participants. In HIV-infected patients, CD4 T-cell counts and HIV-ribonucleic acid (HIV-RNA) values were measured.

Results: The median CD4 T-cell count was 529.65 cells/mm3 in the HIV-infected patients and median duration of living with HIV was 16.25 (range: 2 to 120) months. Baseline characteristics and left ventricular ejection fraction values were similar in both groups. However, there was a significant difference in the low-density lipoprotein cholesterol, triglycerides, interventricular septum, left ventricular posterior wall, and GLS between the groups (p = 0.013, p = 0.005, 0.041, p = 0.013, and p = 0.003, respectively). There was a positive correlation between GLS and CD4 levels (r = 0.463, p < 0.001).

Conclusions: Our study results suggest that reduced CD4 T-cell counts in HIV-infected patients may cause myocardial dysfunction and GLS can be useful to show subtle LVSD asymptomatic cases.

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