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Cognitive dysfunction in chronic Chagas disease cardiomyopathy

Disfunção cognitiva na cardiopatia chagásica crônica

Abstract

Chagas disease (CD) remains a major cause of stroke in developing countries, but cognitive repercussion of CD has not been well studied.

Objective:

To compare the frequency and pattern of cognitive dysfunction in patients with CD cardiomyopathy (CDC) and other cardiomyopathies (OC).

Methods:

We studied 37 patients with CDC and 42 patients with OC with similar age, educational level and cardiac systolic function. Cognitive tests were applied to both groups by a single examiner blinded to CD status. Logistic regression multivariable models were constructed to ascertain predictors of cognitive dysfunction for each test.

Results:

Cognitive dysfunction was detected in 9 (24%) CDC patients and 6 (14%) OC patients by Mini Mental State Exam (MMSE) corrected for educational level. Independent predictors of abnormal MMSE (p <0.05) included stroke history (OR=5.51; 95% CI=1.27-24.01) and digoxin use (OR=0.23, 95% CI=0.06-0.89), while CD showed a trend toward statistical significance (OR=4.63; 95% CI=0.87-24.73, p =0.07). Delayed recall of Rey's Complex Figure Test was significantly worse in CD patients, where this remained a significant predictor in the multivariable analysis (OR=4.67; 95% CI=1.23-17.68).

Conclusions:

Cognitive dysfunction is frequent in Chagas disease and should be considered as an outcome measure in Chagas disease studies.

Key words:
Chagas disease; American trypanosomiasis; cognition; cerebrovascular disorders.

Resumo

A doença de Chagas (DC) permanence uma causa importante de acidente vascular cerebral em países em desenvolvimento, mas a repercussão cognitiva dessa doença não tem sido bem estudada.

Objetivo:

Comparar a frequência e padrão de disfunção cognitiva em pacientes com cardiomiopatia associada à DC (CDC) em comparação com outras cardiomiopatias (OC).

Métodos:

Foram estudados 37 pacientes com CDC e 42 portadores de OC com idade, nível de instrução e função sistólica cardíaca semelhantes. Testes cognitivos foram realizados em ambos os grupos por um único investigador cegado quanto ao diagnóstico de DC. Modelos de regressão logística multi-variável foram construídos para detectar preditores de disfunção cognitiva para cada teste.

Resultados:

Disfunção cognitiva foi detectada em 9 (24%) pacientes com CDC e 6 (14%) com OC pelo Mini Exame do Estado Mental (MEEM) corrigido pelo nível de instrução. Preditores independentes de MEEM anormal (p <0,05) foram: história de AVC (OR=5,51; IC 95%=1,27-24,01) e uso de digoxina (OR=0,23, IC 95%=0,06-0,89); DC mostrou tendência a significância estatística (OR=4,63; IC 95%=0,87-24,73, p =0,07). Pacientes com CDC apresentaram pior desempenho na evocação tardia da figura complexa de Rey. Neste teste, a DC se manteve um preditor significante de disfunção cognitiva na análise multivariável (OR=4,67; IC 95%=1,23-17,68).

Conclusões:

Disfunção cognitiva é frequente na doença de Chagas e deve ser considerada como desfecho quantificado nos estudos da doença de Chagas.

Palavras-chave:
doença de Chagas; Tripanossomíase americana; cognição; transtornos cerebrovasculares.

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References

  • 1
    Carod-Artal FJ, Vargas AP, Melo M, Horan TA. American trypanosomiasis (Chagas' disease): an unrecognised cause of stroke. J Neurol Neurosurg Psychiatry 2003;74:516-518.
  • 2
    Control of Chagas disease. Report of a WHO Expert Committee. World Health Organ Tech Rep Ser 1991;811:1-95.
  • 3
    Frank M, Hegenscheid B, Janitschke K, Weinke T. Prevalence and epidemiological significance of Trypanosoma cruzi infection among Latin American immigrants in Berlin, Germany. Infection 1997;25:355-358.
  • 4
    Reesink HW. European strategies against the parasite transfusion risk. Transfus Clin Biol 2005;12:1-4.
  • 5
    Chagas C. Nova entidade mórbida do homem. Rezumo geral de estudos etiologicos e clinicos. Mem Inst Oswaldo Cruz 1911;3:219-275.
  • 6
    Pittella JE. Central nervous system involvement in Chagas' disease. An updating. Rev Inst Med Trop Sao Paulo 1993;35:111-116.
  • 7
    Pitella JE. Ischemic cerebral changes in the chronic chagasic cardiopathy. Arq Neuropsiquiatr 1984;42:105-115.
  • 8
    de Queiroz AC, Ramos EA. Anatomo-pathological study of the brain in idiopathic cardiomegaly. Arq Neuropsiquiatr 1979;37:405-411.
  • 9
    Mangone CA, Sica RE, Pereyra S, et al. Cognitive impairment in human chronic Chagas' disease. Arq Neuropsiquiatr 1994;52:200-203.
  • 10
    Zuccala G, Cattel C, Manes-Gravina E, Di Niro MG, Cocchi A, Bernabei R. Left ventricular dysfunction: a clue to cognitive impairment in older patients with heart failure. J Neurol Neurosurg Psychiatry 1997;63:509-512.
  • 11
    Zuccala G, Onder G, Pedone C, et al. Hypotension and cognitive impairment: Selective association in patients with heart failure. Neurology 2001;57:1986-1992.
  • 12
    Cacciatore F, Abete P, Ferrara N, et al. Congestive heart failure and cognitive impairment in an older population. Osservatorio Geriatrico Campano Study Group. J Am Geriatr Soc 1998;46:1343-1348.
  • 13
    Brucki SM, Nitrini R, Caramelli P, Bertolucci PH, Okamoto IH. Suggestions for utilization of the mini-mental state examination in Brazil. Arq Neuropsiquiatr 2003;61:777-781.
  • 14
    Nitrini R, Lefevre BH, Mathias SC, et al. Neuropsychological tests of simple application for diagnosing dementia. Arq Neuropsiquiatr 1994;52:457-465.
  • 15
    Nitrini R, Caramelli P, Herrera Junior E, et al. Performance of illiterate and literate nondemented elderly subjects in two tests of long-term memory. J Int Neuropsychol Soc 2004;10:634-638.
  • 16
    Wechsler D. Wechsler Adult Intelligence Scale-Revised (WAIS-R). San Antônio: in Corporation TP;1981.
  • 17
    Diniz LFMC, Torres MF, Macedo V, Cosenza RC. The Rey auditory-verbal learning test: norms for a Brazilian sample. Rev Bras Neurol 2000;36:79-83.
  • 18
    Rey A. Manuel du test de copie d'une figure complexe de A. Rey. Paris: Les Editions du Centre de Psychologie Appliquée;1959.
  • 19
    Snaith RP, Zigmond AS: The hospital anxiety and depression scale. Br Med J (Clin Res Ed) 1986;292:344.
  • 20
    Herrera Jr E, Caramelli P, Silveira AS, Nitrini R. Epidemiologic survey of dementia in a community-dwelling Brazilian population. Alzheimer Dis Assoc Disord 2002;16:103-108.
  • 21
    Bertolucci PH, Brucki SM, Campacci SR, Juliano Y. The Mini-Mental State Examination in a general population: impact of educational status. Arq Neuropsiquiatr 1994;52:1-7.
  • 22
    Zuccala G, Marzetti E, Cesari M, et al. Correlates of cognitive impairment among patients with heart failure: results of a multicenter survey. Am J Med 2005;118:496-502.
  • 23
    Zuccala G, Onder G, Pedone C, et al. Cognitive dysfunction as a major determinant of disability in patients with heart failure: results from a multicentre survey. On behalf of the GIFA (SIGG-ONLUS) Investigators. J Neurol Neurosurg Psychiatry 2001;70:109-112.
  • 24
    Zuccala G, Pedone C, Cesari M, et al. The effects of cognitive impairment on mortality among hospitalized patients with heart failure. Am J Med 2003;115:97-103.
  • 25
    Tucker AR, Ng KT. Digoxin-related impairment of learning and memory in cardiac patients. Psychopharmacology (Berl) 1983;81:86-88.
  • 26
    Kurup RK, Kurup PA. Hypothalamic digoxin, hemispheric chemical dominance, and creativity. Int J Neurosci 2003; 113:565-577.
  • 27
    Kurup RK, Kurup PA. A hypothalamic digoxin-mediated model for conscious and subliminal perception. Int J Neurosci 2003;113:815-820.
  • 28
    Nunes MC, Barbosa MM, Rocha MO. Peculiar aspects of cardiogenic embolism in patients with Chagas' cardiomyopathy: a transthoracic and transesophageal echocardiographic study. J Am Soc Echocardiogr 2005;18:761-767.
  • 29
    Oliveira-Filho J, Viana LC, Vieira-de-Melo RM, et al. Chagas disease is an independent risk factor for stroke: baseline characteristics of a Chagas disease cohort. Stroke 2005;36:2015-2017.
  • 30
    Foerch C, Misselwitz B, Sitzer M, et al. Difference in recognition of right and left hemispheric stroke. Lancet 2005;366:292-293.
  • 31
    Ostrosky-Solis F, Ardila A, Rosselli M, Lopez-Arango G, Uriel-Mendoza V. Neuropsychological test performance in illiterate subjects. Arch Clin Neuropsychol 1998;13:645-660.
  • 32
    Castro-Caldas A, Petersson KM, Reis A, Stone-Elander S, Ingvar M. The illiterate brain. Learning to read and write during childhood influences the functional organization of the adult brain. Brain 1998;121(Pt 6):1053-1063.

Publication Dates

  • Publication in this collection
    Jan-Mar 2009

History

  • Received
    31 Dec 2008
  • Accepted
    11 Feb 2009
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento R. Vergueiro, 1353 sl.1404 - Ed. Top Towers Offices, Torre Norte, São Paulo, SP, Brazil, CEP 04101-000, Tel.: +55 11 5084-9463 | +55 11 5083-3876 - São Paulo - SP - Brazil
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