On the electrocardiographic diagnosis of biventricular infarctions.
Acta Cardiol
; 55(5): 283-8, 2000 Oct.
Article
en En
| MEDLINE
| ID: mdl-11103827
To diagnose posterior and anterior biventricular infarctions it is necessary to record from right and left thoracic and high abdominal unipolar leads. These supplementary leads are dependable, can be repeated as many times as needed and show the evolution from signs of myocardial injury to those of dead tissue (Q waves of 0.04 sec or more). This electrocardiographic evolution increases the diagnostic value of the electrical exploration, since the injury current can be observed also in other conditions. The diagnosis of right ventricular infarction can be established even in the presence of RBBB. Signs of a dead zone in the free right ventricular wall are more frequently observed in posterior biventricular infarctions than in anterior ones. In these cases, the signs of subepicardial injury are more accentuated in the right thoracic unipolar leads than in V3, indicating anterior right ventricular involvement. These signs are also observed in experimental studies made in animals. This electrocardiographic exploration opens a wide field for the diagnosis of myocardial infarction, particularly in biventricular involvement, including old myocardial scars, and in discarding signs of pericarditis manifested only by the upward displacement of the ST segment. A review of the medical literature concerning diagnosis of biventricular infarctions is presented.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Electrocardiografía
/
Infarto del Miocardio
Tipo de estudio:
Diagnostic_studies
Límite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Acta Cardiol
Año:
2000
Tipo del documento:
Article
País de afiliación:
México
Pais de publicación:
Reino Unido