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2006, Number 3

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Arch Cardiol Mex 2006; 76 (3)

On the ventricular arrhythmias in chronic Chagasic cardiomyopathy

de Micheli A, Aranda A, Iturralde P, Medrano GA
Full text How to cite this article

Language: Spanish
References: 10
Page: 320-323
PDF size: 140.20 Kb.


Key words:

Chronic chagasic cardiomyopathy, Ventricular arrhythmias, Histologic findings.

ABSTRACT

Some authors have shown a high prevalence of electric circuits localized in the epicardium in Chagasic cardiomyopathy. Other authors have found in these patients, during electric mapping, mid-diastolic potentials and earlier myocardial activation in epicardial regions than in the endocardium. In a previous study, we found electrocardiographic signs of subepicardial ischemia in 66% of seropositive Chagasic patients against 16% of seronegative Chagasic ones. In the case presented here, a Chagasic dilated cardiomyopathy, we found electrocardiographic signs of subepicardial injury in the left free ventricular wall, related with histological findings of lymphocytic inflammation in these regions. In contrast, the endocardium was completely free from inflammation foci.


REFERENCES

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  2. SOSA E, SCANAVACCA M, D’AVILA A, BELLOTTI G, PILEGGI F: Radiofrequency catheter ablation of ventricular tachycardia guided by non surgical epicardial mapping in chronic Chagasic heart disease. PACE 1999; 22(Pt I): 128-130.

  3. MONTENEGRO VALDOVINOS PC, DE MICHELI A, REYES LÓPEZ PA: Hallazgos electrovectocardiográficos en la miocardiopatía chagásica crónica. Arch Inst Cardiol Mex 1998; 68(1): 51-57.

  4. CHAGAS C, VILLELA E: Forma cardíaca de trypanosomiase americana. Reimpreso de Memorias do Instituto Oswaldo Cruz. Rio de Janeiro, Manguinhos, Brasil, 1922: 5-6.

  5. PONDE A: La cardiopatía crónica de la enfermedad de Carlos Chagas. Prensa Med Arg 1948; 33: 1075-1077.

  6. ROMANA C, COSSIO F: Revisión de trastornos electrocardiográficos en un grupo de chagásicos crónicos. 1ra. Reunión Panamericana sobre la Enfermedad de Chagas. Tucumán (Argentina), 1950; 1: 39.

  7. ROSENBAUM M, ÁLVAREZ A: The electrocardiogram in chronic Chagas myocarditis. Am Heart J 1955; 50: 492-497.

  8. BOCALANDRO A: Hemibloqueos y zonas inactivables. Estudios electro y vectocardiográficos. Memorias del Congreso Mundial de Cardiología. Buenos Aires (Argentina), 1974.

  9. STORINO R, MILEI J: Estudios cardiológicos no invasivos. En: Enfermedad de Chagas. Buenos Aires. Ed. Doyma Argentina S.A., 1994: 359-384 y 403-406.

  10. PONTES S, FERREIRA D, FREIRE S, CORREA S, NOGUEIRA N: Prevalencia de alteraçoes electrocardiográficas en 2000 pacientes chagásicos idosos e nâo idosos. Arq Bras Cardiol 1993; 60(6): 369-372.




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C?MO CITAR (Vancouver)

Arch Cardiol Mex. 2006;76