2006, Number 3
<< Back Next >>
Arch Cardiol Mex 2006; 76 (3)
On the ventricular arrhythmias in chronic Chagasic cardiomyopathy
de Micheli A, Aranda A, Iturralde P, Medrano GA
Language: Spanish
References: 10
Page: 320-323
PDF size: 140.20 Kb.
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
RHO RW, PAGE RL: Ventricular arrhythmias in Chagas, cardiomyopathy. En: HURST’S: The Heart. 11th Edition. New York. McGraw-Hill, 2004: 883-885.
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.
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.
CHAGAS C, VILLELA E: Forma cardíaca de trypanosomiase americana. Reimpreso de Memorias do Instituto Oswaldo Cruz. Rio de Janeiro, Manguinhos, Brasil, 1922: 5-6.
PONDE A: La cardiopatía crónica de la enfermedad de Carlos Chagas. Prensa Med Arg 1948; 33: 1075-1077.
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.
ROSENBAUM M, ÁLVAREZ A: The electrocardiogram in chronic Chagas myocarditis. Am Heart J 1955; 50: 492-497.
BOCALANDRO A: Hemibloqueos y zonas inactivables. Estudios electro y vectocardiográficos. Memorias del Congreso Mundial de Cardiología. Buenos Aires (Argentina), 1974.
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.
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.