Morte súbita em área endêmica da doença de Chagas

Abstract

N ão há, ao q u e nos co n sta, n a lite rá tu ra estudos sistem atizados com relação à prevalência deste tipo de ó b ito do chagásico n o p a n o ra m a geral das m ortes súbitas. Pelo q u e p u d em o s c o n sta ta r, so m ente R o ch a (A R ocha: com u n icação pessoal, 1974) realizou lev an tam en to so b re a oco rrên cia da m o rte sú b ita em 394 necropsias em U b erlân d ia, no T riân g u lo M ineiro, o n d e a do en ça de C hagas é en dêm ica. E n tre ta n to , o referido a u to r não publicou seus resultados. D ian te dos fatos expostos e asso cian d o -o s à obsefvação p o p u la r de q u e a su b itan eid ad e d o ób ito no T riân g u lo M ineiro é b a sta n te freqüente, resol vem os e stu d a r a real freqüência e a etiologia da m o rte sú b ita em U b erab a. MATERIAL E MÉTODOSO m aterial de estu d o foi o b tid o em U b era b a , ci dade situ ad a no T riân g u lo M ineiro, que à época da realização deste tra b a lh o co n tav a com u m a p o p u lação (ru ral e u rb a n a ) de cerca de 200.000 h ab i tantes. P ara análise da freqüência e d a etiologia das m ortes sú b itas d u as fontes de in fo rm ação fo 79

Sudden death in patients with Chagas disease

“…Studies realized by the author during 1980, in an endemic area of American trypanosomiasis (Lopes & Chapadeiro 1983) indicated that CD was responsible for 24.1% of the SUD in the city of Uberaba. A similar study carried out 10 years later (Lopes et al 1995) showed that the frequency of this type of SD had fallen to 6.8%.…”

Sudden death in Chagas' disease

“…For others 7,8 , death occurring suddenly in patients with previous clinical manifestations of cardiovascular disease or any other illness should also be considered sudden death, and one classical example is the sudden death occurring after acute myocardial infarction 9 . Aiming to differentiate and better characterize these two situations, some authors when referring to sudden death in ischemic heart disease 10 , and mainly in Chagas' disease [11][12][13][14] , started to classify it as unexpected and expected, in order to consider just the first one as the true representative of this condition 14 . From our point of view, this differentiation has no clinical importance because, for prevention, its triggering mechanism is much more important than death expectancy.…”

Characteristics and identification of sites of chagasic ventricular tachycardia by endocardial mapping

“…In endemic regions, it is the main cause of sudden death, affecting many young apparently healthy, asymptomatic or oligosymptomatic individuals, with preserved or little compromised ventricular function [2][3][4] . In patients with structural heart disease, despite the great technological advances provided by electrophysiological study, ventricular tachyarrhythmias remain challenging, both in their clinical manifestations, being many times fatal in the first event, and in their therapeutic management, being generally refractory to several drug schemes.…”