Document Type : Original Article
Authors
- . Rauf Audu 1
- . Berko Panyin Anto 2
- . George Asumeng Koffuor 3
- . Akua Afriyie Abruquah 4
- . Kwame Ohene Buabeng 2
1 Department of Clinical and Social Pharmacy, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana Kama Health Service, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
2 Department of Clinical and Social Pharmacy, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
3 Department of Pharmacology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
4 Department of Pharmaceutical Sciences, Kumasi Polytechnic, Kumasi, Ghana
Abstract
Objective: Malaria rapid diagnostic test(MRDT) provides a good alternative to malaria
microscopy diagnosis, particularly in resource‑constrained settings. This study therefore
evaluated MRDT in private retail pharmacies (PRPs) as a critical step in community
case malaria management.
Methods: In a prospective, cross‑over, validation survey at six PRPs in the Ashanti
Region of Ghana, 1200 patients presenting with fever in the preceding 48 h were
sampled. Fingerstick blood samples were collected for preparation of thick and thin
blood films for malaria microscopy. Categorized patients (600 each) went through the
processes of MRDT or presumptive diagnosis (PD) of malaria. The malaria disease
prevalence of the study area was established. Selectivity (Se), specificity (Sp), positive
predictive value (PPV) along with false discovery rate (FDR), and negative predictive
value (NPV) along with the false omission rate (FOR), and diagnostic odds ratio (DOR)
of MRDT were then calculated.
Findings: While 43.0% tested positive using the MRDT, 57.0% tested negative. However,
62.0% MRDT‑negative patients in addition to all the MRDT positives were given
artemether‑lumefantrine. Of those diagnosed by PD, 98.2% were prescribed with an
antimalarial (microscopy however confirmed only 70.3% as positive). Se and Sp of the
MRDT were 90.68 ± 11.18% and 98.68 ± 1.19%, respectively. Malaria prevalence was
estimated to be 43.3%. PPV was 98.0%, FDR was 2.0%, NPV was 98.0%, FOR was 2.0%,
and DOR was 2366.43.
Conclusion: Results highlighted good performance of MRDTs at PRPs which could
inform decision toward its implementation.
Keywords
Cundill B, Gyapong M, et al. The impact of providing rapid
diagnostic malaria tests on fever management in the private
retail sector in Ghana: A cluster randomized trial. BMJ
2015;350:h1019.
2. Moon S, Pérez Casas C, Kindermans JM, de Smet M,
von Schoen‑Angerer T. Focusing on quality patient care in
the new global subsidy for malaria medicines. PLoS Med
2009;6:e1000106.
3. Boyce RM, Muiru A, Reyes R, Ntaro M, Mulogo E, Matte M,
et al. Impact of rapid diagnostic tests for the diagnosis
and treatment of malaria at a peripheral health facility in
Western Uganda: An interrupted time series analysis. Malar
J 2015;14:203.
4. Singh N, Sharma RK. Improving diagnosis and treatment of
uncomplicated malaria. Lancet Glob Health 2014;2:e304‑5.
5. Nicastri E, Bevilacqua N, Sañé Schepisi M, Paglia MG,
Meschi S, Ame SM, et al. Accuracy of malaria diagnosis by
microscopy, rapid diagnostic test, and PCR methods and
evidence of antimalarial overprescription in non‑severe febrile
patients in two Tanzanian hospitals. Am J Trop Med Hyg
2009;80:712‑7.
6. Gatton ML, Rees‑Channer RR, Glenn J, Barnwell JW, Cheng Q,
Chiodini PL, et al. Pan‑Plasmodium band sensitivity for
Plasmodium falciparum detection in combination malaria rapid
diagnostic tests and implications for clinical management.
Malar J 2015;14:115.
7. Hansen KS, Grieve E, Mikhail A, Mayan I, Mohammed N,
Anwar M, et al. Cost‑effectiveness of malaria diagnosis using
rapid diagnostic tests compared to microscopy or clinical
symptoms alone in Afghanistan. Malar J 2015;14:217.
8. Rauf A, Anto BP, Koffuor GA, Buabeng KO, Abdul‑Kabir M.
Assessing the diagnosis of uncomplicated malaria after
introduction of malaria rapid diagnostic tests. Br J Med Med
Res 2014;4:3167‑78.
9. Bastiaens GJ, Schaftenaar E, Ndaro A, Keuter M, Bousema T,
Shekalaghe SA. Malaria diagnostic testing and treatment
practices in three different Plasmodium falciparum transmission
settings in Tanzania: Before and after a government policy
change. Malar J 2011;10:76.
10. Causer L, Abdulla S, Williams H, Shebuge H,
Magonyozi D, Msuya H,, et al. Malaria diagnosis and role of diagnostics – implications for malaria drug policy. In American
Society of Tropical Medicine and Hygiene Conference Miami,
FL; 2004.
11. Chanda P, Hamainza B, Moonga HB, Chalwe V, Pagnoni F.
Community case management of malaria using ACT and RDT
in two districts in Zambia: Achieving high adherence to test
results using community health workers. Malar J 2011;10:158.
12. Ratsimbasoa A, Randriamanantena A, Raherinjafy R,
Rasoarilalao N, Ménard D. Which malaria rapid test for
Madagascar? Field and laboratory evaluation of three tests
and expert microscopy of samples from suspected malaria
patients in Madagascar. Am J Trop Med Hyg 2007;76:481‑5.
13. van den Broek I, Kitz C, Al Attas S, Libama F, Balasegaram M,
Guthmann JP. Efficacy of three artemisinin combination
therapies for the treatment of uncomplicated Plasmodium
falciparum malaria in the Republic of Congo. Malar J 2006;5:113.
14. Mariette N, Barnadas C, Bouchier C, Tichit M, Ménard D.
Country‑wide assessment of the genetic polymorphism in
Plasmodium falciparum and Plasmodium vivax antigens detected
with rapid diagnostic tests for malaria. Malar J 2008;7:219.
15. Ishengoma DS, Francis F, Mmbando BP, Lusingu JP,
Magistrado P, Alifrangis M, et al. Accuracy of malaria rapid
diagnostic tests in community studies and their impact on
treatment of malaria in an area with declining malaria burden
in North‑Eastern Tanzania. Malar J 2011;10:176.
16. Lemma H, San Sebastian M, Löfgren C, Barnabas G.
Cost‑effectiveness of three malaria treatment strategies in
rural Tigray, Ethiopia where both Plasmodium falciparum
and Plasmodium vivax co‑dominate. Cost Eff Resour Alloc
2011;9:2.
17. Batwala V, Magnussen P, Nuwaha F. Are rapid diagnostic tests
more accurate in diagnosis of Plasmodium falciparum malaria
compared to microscopy at rural health centres? Malar J
2010;9:349.
18. Benjamini Y, Hochberg Y. Controlling the false discovery rate:
Apractical and powerful approach to multiple testing. J R Stat
Soc Series B 1995;57:289‑300.
19. Glas AS, Lijmer JG, Prins MH, Bonsel GJ, Bossuyt PM. The
diagnostic odds ratio: A single indicator of test performance.
J Clin Epidemiol 2003;56:1129‑35.
20. Kyabayinze DJ, Asiimwe C, Nakanjako D, Nabakooza J,
Counihan H, Tibenderana JK. Use of RDTs to improve malaria
diagnosis and fever case management at primary health care
facilities in Uganda. Malar J 2010;9:200.