alexa Impact of Symptomatic HIV- Related Neurocognitive Disorders in Survival of HIV- Infected Individuals: A Systematic Review and Meta-Analyses | OMICS International | Abstract
E-ISSN: 2314-7326
P-ISSN: 2314-7334

Journal of Neuroinfectious Diseases
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Review Article

Impact of Symptomatic HIV- Related Neurocognitive Disorders in Survival of HIV- Infected Individuals: A Systematic Review and Meta-Analyses

Ahmad M Yakasai1*, Hamza Muhammad2, Aliyu Ibrahim3, Lukman F Owolabi3, Mahmood M Dalhat2, Zaiyad G. Habib4, Naseer A. Ishaq5, Aisha M. Nalado5, BabaMaiyaki M5, Muhammad S Mijinyawa5and Abdulrazaq G Habib2

1Public Health and Diagnostic Institute, College of Medical Sciences, Northwest University, Kano, Nigeria

2Infectious and Tropical Diseases Unit, Department of Medicine, Aminu Kano Teaching Hospita/Bayero University Kano, Kano, Nigeria

3Neurology Unit, Department of Medicine, Aminu Kano Teaching Hospital/ Bayero University Kano, Kano, Nigeria

4Department of Medicine University of Abuja Teaching Hospital, PMB 228 Gwagwalada Abuja, Nigeria

5Department of Medicine, Aminu Kano Teaching Hospital/ Bayero University Kano, Kano, Nigeria

*Corresponding Author:
Yakasai AM
Public Health and Diagnostic Institute
College of Medical Sciences
Northwest University, Kano, Nigeria
Tel: +234 806 541 9097
E-mail: mailto:[email protected]

Received October 20, 2014; Accepted December 18, 2014; Published December 20, 2014

Citation: Yakasai AM, Muhammad H, Ibrahim A, Owolabi LF, Dalhat MM (2014) Impact of Symptomatic HIV- Related Neurocognitive Disorders in Survival of HIVInfected Individuals: A Systematic Review and Meta-Analyses. J Neuroinfect Dis 6:166. doi:10.4172/2314-7326.1000166

Copyright: ©2014 Yakasai AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: HIV- related symptomatic neurocognitive disorders (SNCD) negatively influence the survival of affected patients. We conducted this meta-analysis to provide pooled estimates of mortality risk attributable to SNCD. Methods: MEDLINE, Google scholar, Cochrane library PsycINFO and EMBASE were the data bases thoroughly searched up to April 2014. Two parallel meta-analyses were performed to derive hazard ratio (HR) and relative risk (RR) of mortality from 7 and 6 studies respectively. The level statistical heterogeneity in the included studies was assessed using I-squared (I2) statistic while metaregression and subgroup analyses mainly explored clinical and methodological heterogeneity. Other assessments were analyses for publication bias, small study effect, single study effect and study quality. Results: Thirteen studies with satisfactory quality met the inclusion criteria. A total of 84 421 HIV+ individuals across 21 countries from Europe and America were involved. Subjects with SNCD have more than twice risk of death compared to subjects without SNCD: HR=2.1, 95% confidence interval (CI)=1.52-2.58; RR=2.46, 95% CI=1.63-3.69. The estimated HR translates in to 72% probability of subjects with SNCD dying earlier than subjects without SNCD. Risk of mortality is associated with declining CD4 cell count (p=0.038) and neurocognitive impairment in psychomotor and memory domains. In subgroup analyses, there was no significant difference in mortality risk with respect to HAART utilization, type of SNCD and availability of demographically adjusted normative scores. Despite limiting generalizability of findings to sub-Saharan Africa, inclusion of studies conducted in developed countries reduces confounding and increases the accuracy of defining pooled estimates. Conclusion: HIV- related SNCD negatively influence survival in affected patients. Routine care of these patients should include neurocognitive screening preferably with a battery assessing domains that are predictive of mortality such as psychomotor and memory domains.

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