Um aspecto electrocardiográfico da doença de Chagas

Abstract

Os A.A. mostram electrocardiogramas de um portador de fórma cardíaca crônica da doença de Chagas. O ecg variava, de tempos a tempos, evidenciando, ora um bloqueio auriculo-ventricular total, ora um bloqueio auriculo-ventricular do tipo 2 : 1, ora rítmo normal, etc. Além disso foram registradas variaçãoes em um mesmo ecg. Foram levantadas duas hipóteses para interpretação dêstes achados: uma, em que as toxinas seriam responsáveis; outra, em que houvesse aumetno do período refratário ventricular.<br>The A. A. show electrocardiagrams of a patient of the chronic cardiac form of the Chagas disease. The ecg varied from time to time, showing at one time a totla ventricula auricle stoppage, at another a ventricular auricle stoppage of the type 2 : 1, at another normal rhythm etc. Besides this, variatios were registered in one single ecg. Two hypothesis were offered to explain these facts: one, in which the toxins would be responisble; another, that there had been an increase in the ventricular refratory period

Carlos Chagas Discoveries as a Drop Back to Scientific Construction of Chronic Chagas Heart Disease

“…The intermittence of complete AV block was described by Magalhães and Freire 26 in 1945. A case of chronic heart failure with complete AV block complicated by pulmonary infarction was also reported for the first time in this year.…”