Aspectos electrocardiográficos de la hipertrofia ventricular derecha en el cor pulmonale crónico / Electrocardiographic features of right ventricular hypertrophy in chronic cor pulmonale
Arch. cardiol. Méx
;
76(1): 69-74, ene.-mar. 2006.
Artigo
em Espanhol
| LILACS
| ID: lil-569524
ABSTRACT
The electrophysiological criteria for diagnosing right ventricular hypertrophy, characteristic of chronic cor pulmonale, are described. Right ventricular hypertrophy due to a sustained systolic overload can be global or regional. In the first situation, as for example, an idiopathic pulmonary hypertension, the magnitude and manifestation of all the main vectors resulting from the depolarization of this ventricle are increased Ils (septal), llr (parietal), and Illr (basal). When the right ventricular hypertrophy is of the segmental (regional) type, as for example, that due to a chronic bronchial obstruction, the magnitude and manifestation of only some right vectors are increased. In this condition, only the magnitude of the right basal vector (Illr) is augmented. In the presence of subepicardial or transmural ischemia of the right ventricle, negative T waves of primary type are recorded in right precordial and transitional leads, where the Q-Tc interval is prolonged in the absence of digitalis effect. Two demonstrative examples of the correlations existing between the electrocardiographic and anatomical findings in global and regional hypertrophies, respectively, of the right ventricle are presented.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Doença Cardiopulmonar
/
Hipertrofia Ventricular Direita
/
Eletrocardiografia
Limite:
Adulto
/
Feminino
/
Humanos
Idioma:
Espanhol
Revista:
Arch. cardiol. Méx
Assunto da revista:
Cardiologia
Ano de publicação:
2006
Tipo de documento:
Artigo
País de afiliação:
México
Instituição/País de afiliação:
Instituto Nacional de Cardiología Ignacio Chávez/MX
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