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Ventricular arrhythmias and left ventricular myocardial function in chronic chagasic patients.

Abstract：

:To study the relationship of complex ventricular arrhythmias to the presence and extent of myocardial damage, 556 chronic chagasic patients were submitted to an extensive protocol, including left ventricular cineangiography and Holter monitoring, and properly classified according to clinical, electrocardiographic and hemodynamic findings. Stages of the clinical-hemodynamic classification corresponded to increasing degrees of myocardial damage, age, prevalence and complexity of ventricular arrhythmias. Myocardial damage (particularly left ventricular dilatation) was the most important clinical factor linked to the presence of complex ventricular arrhythmias. A clear difference in terms of ventricular function was found only when arrhythmias were grouped into simple (Lown grades I and II) and complex (grades III and IV) forms. It is recommended that any classification for chagasic patients must be based on signs of myocardial involvement, instead of clinical or electrocardiographic findings alone. Evaluation should include accurate determination of left ventricular myocardial function, along with the search for the presence of complex ventricular arrhythmias and abnormalities of conduction.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Carrasco HA,Guerrero L,Parada H,Molina C,Vegas E,Chuecos R

doi

10.1016/0167-5273(90)90006-q

subject

Has Abstract

pub_date

1990-07-01 00:00:00

pages

35-41

issue

1

eissn

0167-5273

issn

1874-1754

pii

0167-5273(90)90006-Q

journal_volume

28

pub_type

杂志文章

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