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Ischaemic stroke in HIV-infected patients: a case-control study.

Ischaemic stroke in HIV-infected patients: a case-control study.
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Silva-Pinto A, Costa A, Serrão R, Sarmento A, Abreu P,


Silva-Pinto A, Costa A, Serrão R, Sarmento A, Abreu P, (click to view)

Silva-Pinto A, Costa A, Serrão R, Sarmento A, Abreu P,

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HIV medicine 2016 8 18() doi 10.1111/hiv.12415

Abstract
OBJECTIVES
The aim of the study was to provide insights into the contributions of HIV infection stage, antiretroviral therapy (ART) and vascular risk factors to the occurrence of ischaemic stroke in HIV-infected patients.

METHODS
We performed a case-control study of HIV-infected patients followed in our clinic. We compared patients hospitalized between January 2006 and June 2014 with an ischaemic stroke or transient ischaemic attack to age- and gender-matched controls without stroke.

RESULTS
Of 2146 patients followed in our clinic, we included 23 cases (20 men and three women; mean age 51.3 years) and 23 controls. Eighty-three per cent of cases had had a stroke and 17% a transient ischaemic attack. According to the Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification, small-vessel occlusion was the most frequent aetiology, followed by large-artery atherosclerosis and cardioembolism. Compared with controls, stroke was statistically significantly associated with diabetes, smoking and low concentrations of high-density lipoprotein (HDL) cholesterol. Illegal drug use, a low CD4 count and a high viral load were also associated with ischaemic cerebral events. There were no statistically significant differences between cases and controls in Centers for Disease Control and Prevention (CDC) HIV stage, CD4 count nadir and HIV infection time-to-event. No statistically significant differences were found concerning ART or treatment compliance.

CONCLUSIONS
In our single centre study, we found associations of illegal drug use, HIV replication and some traditional vascular risk factors with the occurrence of ischaemic cerebral events. The paradigm of the care of HIV-infected patients is changing. Concomitant diseases in the ageing patient with HIV infection, including cerebrovascular disease, must also be addressed in view of their impacts on morbidity and mortality. Apart from controlling the HIV infection and immunosuppression with ART, vascular risk factors must also be addressed.

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