Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]

Background: Antimalarial drugs affect the central nervous system, but it is difficult to differentiate the effect of these drugs from that of the malaria illness. We conducted a systematic review to determine the association between anti-malarial drugs and mental and neurological impairment in human...

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Main Authors: Mary A. Bitta, Symon M. Kariuki, Clifford Mwita, Samson Gwer, Leah Mwai, Charles R.J.C. Newton
Format: Article
Language:English
Published: Wellcome 2017-06-01
Series:Wellcome Open Research
Subjects:
Online Access:https://wellcomeopenresearch.org/articles/2-13/v2
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author Mary A. Bitta
Symon M. Kariuki
Clifford Mwita
Samson Gwer
Leah Mwai
Charles R.J.C. Newton
author_facet Mary A. Bitta
Symon M. Kariuki
Clifford Mwita
Samson Gwer
Leah Mwai
Charles R.J.C. Newton
author_sort Mary A. Bitta
collection DOAJ
description Background: Antimalarial drugs affect the central nervous system, but it is difficult to differentiate the effect of these drugs from that of the malaria illness. We conducted a systematic review to determine the association between anti-malarial drugs and mental and neurological impairment in humans. Methods: We systematically searched online databases, including Medline/PubMed, PsychoInfo, and Embase, for articles published up to 14th July 2016. Pooled prevalence, heterogeneity and factors associated with prevalence of mental and neurological manifestations were determined using meta-analytic techniques. Results: Of the 2,349 records identified in the initial search, 51 human studies met the eligibility criteria. The median pooled prevalence range of mental and neurological manifestations associated with antimalarial drugs ranged from 0.7% (dapsone) to 48.3% (minocycline) across all studies, while it ranged from 0.6% (pyrimethamine) to 42.7% (amodiaquine) during treatment of acute malaria, and 0.7% (primaquine/dapsone) to 55.0% (sulfadoxine) during prophylaxis. Pooled prevalence of mental and neurological manifestations across all studies was associated with an increased number of antimalarial drugs (prevalence ratio= 5.51 (95%CI, 1.05-29.04); P=0.045) in a meta-regression analysis. Headaches (15%) and dizziness (14%) were the most common mental and neurological manifestations across all studies. Of individual antimalarial drugs still on the market, mental and neurological manifestations were most common with the use of sulphadoxine (55%) for prophylaxis studies and amodiaquine (42.7%) for acute malaria studies. Mefloquine affected more domains of mental and neurological manifestations than any other antimalarial drug. Conclusions: Antimalarial drugs, particularly those used for prophylaxis, may be associated with mental and neurological manifestations, and the number of antimalarial drugs taken determines the association. Mental and neurological manifestations should be assessed following the use of antimalarial drugs.
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spelling doaj.art-980901b5c01f45759b1456edaf70fac02022-12-22T03:46:18ZengWellcomeWellcome Open Research2398-502X2017-06-01210.12688/wellcomeopenres.10658.212747Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]Mary A. Bitta0Symon M. Kariuki1Clifford Mwita2Samson Gwer3Leah Mwai4Charles R.J.C. Newton5KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, KenyaKEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, KenyaDepartment of Surgery, Thika Level 5 Hospital, Thika, KenyaJoanna Briggs Institute (JBI) Affiliate Centre for Evidence-Based Healthcare in Kenya, Clinical Research Evidence Synthesis and Translation Unit, Afya Research Africa, Nairobi, KenyaJoanna Briggs Institute (JBI) Affiliate Centre for Evidence-Based Healthcare in Kenya, Clinical Research Evidence Synthesis and Translation Unit, Afya Research Africa, Nairobi, KenyaKEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research (Coast), Kilifi, KenyaBackground: Antimalarial drugs affect the central nervous system, but it is difficult to differentiate the effect of these drugs from that of the malaria illness. We conducted a systematic review to determine the association between anti-malarial drugs and mental and neurological impairment in humans. Methods: We systematically searched online databases, including Medline/PubMed, PsychoInfo, and Embase, for articles published up to 14th July 2016. Pooled prevalence, heterogeneity and factors associated with prevalence of mental and neurological manifestations were determined using meta-analytic techniques. Results: Of the 2,349 records identified in the initial search, 51 human studies met the eligibility criteria. The median pooled prevalence range of mental and neurological manifestations associated with antimalarial drugs ranged from 0.7% (dapsone) to 48.3% (minocycline) across all studies, while it ranged from 0.6% (pyrimethamine) to 42.7% (amodiaquine) during treatment of acute malaria, and 0.7% (primaquine/dapsone) to 55.0% (sulfadoxine) during prophylaxis. Pooled prevalence of mental and neurological manifestations across all studies was associated with an increased number of antimalarial drugs (prevalence ratio= 5.51 (95%CI, 1.05-29.04); P=0.045) in a meta-regression analysis. Headaches (15%) and dizziness (14%) were the most common mental and neurological manifestations across all studies. Of individual antimalarial drugs still on the market, mental and neurological manifestations were most common with the use of sulphadoxine (55%) for prophylaxis studies and amodiaquine (42.7%) for acute malaria studies. Mefloquine affected more domains of mental and neurological manifestations than any other antimalarial drug. Conclusions: Antimalarial drugs, particularly those used for prophylaxis, may be associated with mental and neurological manifestations, and the number of antimalarial drugs taken determines the association. Mental and neurological manifestations should be assessed following the use of antimalarial drugs.https://wellcomeopenresearch.org/articles/2-13/v2Neuropharmacology & PsychopharmacologyParasitology
spellingShingle Mary A. Bitta
Symon M. Kariuki
Clifford Mwita
Samson Gwer
Leah Mwai
Charles R.J.C. Newton
Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
Wellcome Open Research
Neuropharmacology & Psychopharmacology
Parasitology
title Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
title_full Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
title_fullStr Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
title_full_unstemmed Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
title_short Antimalarial drugs and the prevalence of mental and neurological manifestations: A systematic review and meta-analysis [version 2; referees: 2 approved]
title_sort antimalarial drugs and the prevalence of mental and neurological manifestations a systematic review and meta analysis version 2 referees 2 approved
topic Neuropharmacology & Psychopharmacology
Parasitology
url https://wellcomeopenresearch.org/articles/2-13/v2
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