Association Between Onchocerciasis and Epilepsy in the Itwara Hyperendemic Focus, West Uganda: Controlling for Time and Intensity of Exposure

Christoph Kaiser Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Christoph Kaiser in
Current site
Google Scholar
PubMed
Close
,
Tom Rubaale Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Tom Rubaale in
Current site
Google Scholar
PubMed
Close
,
Ephraim Tukesiga Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Ephraim Tukesiga in
Current site
Google Scholar
PubMed
Close
,
Walter Kipp Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Walter Kipp in
Current site
Google Scholar
PubMed
Close
,
Geoffrey Kabagambe Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Geoffrey Kabagambe in
Current site
Google Scholar
PubMed
Close
,
Joa Okech Ojony Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by Joa Okech Ojony in
Current site
Google Scholar
PubMed
Close
, and
George Asaba Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda; Vector Control Unit, Ministry of Health, Fort Portal, Uganda; Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada; Regional Centre for Quality of Health Care, Makarere School of Public Health, Kampala, Uganda

Search for other papers by George Asaba in
Current site
Google Scholar
PubMed
Close
Restricted access

In 38 pairs of epilepsy patients and controls matched for time and intensity of exposure to transmission of onchocerciasis, the presence of microfilariae in the skin of epilepsy patients was found insignificantly elevated compared with controls (odds ratio = 1.68; 95% confidence interval [CI] = 0.60–4.57; P = 0.31). This difference was more pronounced when detection of subcutaneous nodules was used as indication of infection with Onchocerca volvulus (odds ratio = 2.77; 95% CI = 0.92–8.33; P = 0.065). These findings from a patient group of limited size suggest that intensity of infection may play a substantial role in the development of onchocerciasis-associated epilepsy. Our results are in contrast to the results of two other independent studies from the identical endemic area; one case concluded a significant positive correlation between onchocerciasis and epilepsy, and the other case concluded a clearly negative correlation. Studies with a greater sample size are needed to confirm this possible relationship.

Author Notes

*Address correspondence to Christoph Kaiser, Basic Health Services, Kabarole and Bundibugyo Districts, PO Box 27, Fort Portal, Uganda. E-mail: drchkaiser@web.de

Authors' addresses: Christoph Kaiser, Tom Rubaale, Joa Okech Ojony, and George Asaba, Basic Health Services, Kabarole and Bundibugyo Districts, Fort Portal, Uganda, E-mails: drchkaiser@web.de, communitybased@utlonline.co.ug, joaokech@hotmail.com, and asaba_george@yahoo.com. Ephraim Tukesiga, Vector Control Unit, Ministry of Health, Fort Portal, Uganda, E-mail: etukesiga@yahoo.com. Walter Kipp, Department of Public Health Sciences, University of Alberta, Edmonton, Alberta, Canada, E-mail: walter.kipp@ualberta.ca. Geoffrey Kabagambe, Makarere School of Public Health, Kampala, Uganda, E-mail: drkabagambe@yahoo.com.

  • 1.

    Pion SDS, Kaiser C, Boutros-Toni F, Cournil A, Taylor MM, Meredith SEO, Stufe A, Bertocchi I, Kipp W, Preux P-M, Boussinesq M, 2009. Epilepsy in onchocerciasis endemic areas: systematic review and meta-analysis of population-based surveys. PLoS Negl Trop Dis 3: e461.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 2.

    Newell ED, Vyungimana F, Bradley JE, 1997. Epilepsy, retarded growth and onchocerciasis, in two areas of different endemicity of onchocerciasis in Burundi. Trans R Soc Trop Med Hyg 91: 525527.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 3.

    Boussinesq M, Pion SD, Demanga-Ngangue, Kamgno J, 2002. Relationship between onchocerciasis and epilepsy: a matched case-control study in the Mbam Valley, Republic of Cameroon. Trans R Soc Trop Med Hyg 96: 537541.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 4.

    Druet-Cabanac M, Preux PM, Bouteille B, Bernet-Bernady P, Dunand J, Hopkins A, Yaya G, Tabo A, Sartoris C, Macharia W, Dumas M, 1999. Onchocerciasis and epilepsy: a matched case-control study in the Central African Republic. Am J Epidemiol 149: 565570.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 5.

    Druet-Cabanac M, Boussinesq M, Dongmo L, Farnarier G, Bouteille B, Preux PM, 2004. Review of epidemiological studies searching for a relationship between onchocerciasis and epilepsy. Neuroepidemiology 23: 144149.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 6.

    Ovuga E, Kipp W, Mungherera M, Kasoro S, 1992. Epilepsy and retarded growth in a hyperendemic focus of onchocerciasis in rural western Uganda. East Afr Med J 69: 554556.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 7.

    Fischer P, Kipp W, Bamuhiga J, Binta-Kahwa J, Kiefer A, Büttner DW, 1993. Parasitological and clinical characterization of Simulium neavei-transmitted onchocerciasis in western Uganda. Trop Med Parasitol 44: 311321.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 8.

    Kipp W, Kasoro S, Burnham G, 1994. Onchocerciasis and epilepsy in Uganda. Lancet 343: 183184.

  • 9.

    Kaiser C, Kipp W, Asaba G, Mugisa C, Kabagambe G, Rating D, Leichsenring M, 1996. The prevalence of epilepsy follows the distribution of onchocerciasis in a west Ugandan focus. Bull World Health Organ 74: 361367.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 10.

    International League Against Epilepsy (ILAE), 1993. Guidelines for epidemiologic studies on epilepsy. Commission on Epidemiology and Prognosis. Epilepsia 34: 592596.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 11.

    Kaiser C, Asaba G, Kasoro S, Rubaale T, Kabagambe G, Mbabazi M, 2007. Mortality from epilepsy in an onchocerciasis-endemic area in West Uganda. Trans R Soc Trop Med Hyg 101: 4855.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 12.

    Garms R, Lakwo TL, Ndyomugyenyi R, Kipp W, Rubaale T, Tukesiga E, Katamanywa J, Post RJ & Amazingo UV 2009. The elimination of the vector Simulium neavei from the Itwara onchocerciasis focus in Uganda by ground larviciding. Acta Trop 111: 203210.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 13.

    Smith PG, Morrow RH, 1991. Methods for Field Trials of Interventions Against Tropical Diseases: A Toolbox. Oxford, UK: Oxford University Press, 143146.

  • 14.

    Raper AB, Ladkin RG, 1950. Endemic dwarfism in Uganda. East Afr Med J 27: 339359.

  • 15.

    Kipp W, Burnham G, Bamuhiga J, Leichsenring M, 1996. The Nakalanga syndrome in Kabarole district, Western Uganda. Am J Trop Med Hyg 54: 8083.

  • 16.

    Remme J, Ba O, Dadzie KY, Karam M, 1986. A force-of-infection model for onchocerciasis and its applications in the epidemiological evaluation of the Onchocerciasis Control Programme in Volta River basin area. Bull World Health Organ 64: 667681.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 17.

    Taylor HR, Duke BOL, Munoz B, 1992. The selection of communities for treatment of infection with ivermectin. Trop Med Parasitol 43: 267270.

  • 18.

    Kipp W, Bamhuhiiga J, 2002. Validity of nodule palpation in a Simulium neavei-transmitted onchocerciasis area in Uganda. Am J Trop Med Hyg 67: 128131.

  • 19.

    Kaiser C, Asaba G, Leichsenring M, Kabagambe G, 1998. High incidence of epilepsy related to onchocerciasis in West Uganda. Epilepsy Res 30: 247251.

  • 20.

    Rwiza HT, Kilonzo GP, Haule J, Matuja WBP, Mteza I, Mbena P, Kilima PM, Mwaluko G, Mwang'ombola R, Mwaijande F, Rweyemamu G, Matowo A, Jilek-Aall LM, 1992. Prevalence and incidence of epilepsy in Ulanga, a rural Tanzanian district: a community-based study. Epilepsia 33: 10511056.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 21.

    Kaiser C, Pion S, Preux P-M, Kipp W, Dozie I, Boussinesq M, 2008. Onchocerciasis, cysticercosis and epilepsy. Am J Trop Med Hyg 79: 643644.

  • 22.

    Van der Waals FW, Asher DM, Goudsmit J, Pomeroy KL, Karabatsos N, Gajdusek DC, 1986. Post-encephalitic epilepsy and arbovirus infections in an isolated rainforest area of central Liberia. Trop Geogr Med 38: 203208.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 23.

    Jilek-Aall L, Jilek W, Miller JR, 1979. Clinical and genetic aspects of seizure disorders prevalent in an isolated African population. Epilepsia 20: 613622.

  • 24.

    Van der Waals FW, Goudsmit J, Gajdusek DC, 1983. See-ee: clinical characteristics of highly prevalent seizure disorders in the Gbawein and Wroughbarh clan region of Grand Bassa County, Liberia. Neuroepidemiology 2: 3544.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 25.

    Kaiser C, Benninger C, Asaba G, Mugisa C, Kabagambe G, Kipp W, Rating D, 2000. Clinical and electro-clinical classification of epileptic seizures in West Uganda. Bull Soc Pathol Exot 93: 255259.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 26.

    Lacey M, 2003. Nodding disease: mystery of southern Sudan. Lancet Neurol 2: 714.

  • 27.

    Winkler AS, Friedrich K, König R, Meindl M, Helbok R, Unterberger I, Gotwald T, Dharsee J, Velicheti S, Kidunda A, Jilek-Aall L, Matuja W, Schmutzhard E, 2008. The head nodding syndrome—clinical classification and possible causes. Epilepsia 49: 20082015.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 28.

    Nyungura JL, Akim T, Lako A, Gordon A, Lejeng L, William G, 2011. Investigation into the Nodding syndrome in Witto Payam, Western Equatoria State, 2010. Southern Sudan Med J 4: 36.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 29.

    König R, Nassri A, Meindl M, Matuja W, Kidunda AR, Siegmund V, Bretzel G, Löscher T, Jilek-Aall L, Schmutzhard E, Winkler AS, 2010. The role of Onchocerca volvulus in the development of epilepsy in a rural area of Tanzania. Parasitology 137: 15591568.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 30.

    Duke BOL, Vincelette J, Moore PJ, 1976. Microfilariae in the cerebrospinal fluid, and neurological complications, during treatment of onchocerciasis with diethylcarbamazine. Trop Med Parasitol 27: 123132.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 31.

    Kaiser C, Pion S, Boussinesq M, 2009. Head nodding syndrome and river blindness: a parasitological perspective. Epilepsia 50: 23252326.

  • 32.

    Whithworth JA, Morgan D, Maude GH, Luta AJ, Taylor DW, 1992. A community trial of ivermectin for onchocerciasis in Sierra Leone: clinical and parasitological responses to four doses given at six-monthly intervals. Trans R Soc Trop Med Hyg 86: 277280.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 33.

    Quet F, Guerchet M, Pion SDS, Ngoungou EB, Nicoletti A, Preux P-M, 2010. Meta-analysis of the association between cysticercosis and epilepsy in Africa. Epilepsia 51: 830837.

    • PubMed
    • Search Google Scholar
    • Export Citation
Past two years Past Year Past 30 Days
Abstract Views 310 263 92
Full Text Views 471 10 2
PDF Downloads 44 10 1
 
 
 
 
Affiliate Membership Banner
 
 
Research for Health Information Banner
 
 
CLOCKSS
 
 
 
Society Publishers Coalition Banner
Save