Análise do bloqueio do ramo esquerdo pelo mapeamento eletrocardiográfico de superfície. Comparação com os achados eletro-vetorcardiográficos / Left bundle branch block analysis by body surface mapping. Comparison with electrocardiographic and vectocardiographic findings
Arq. bras. cardiol
; 66(5): 253-256, Mai .1996.
Article
em Pt
| LILACS
| ID: lil-319283
Biblioteca responsável:
BR1.1
ABSTRACT
PURPOSE:
To compare the correlation between the departure areas (DA), negative or positive, in patients whose electrocardiogram showed left bundle branch block (LBBB) and association with left ventricular hipertrophy (LVH) and myocardial infarction (MI), to the electrocardiographic (ECG) and vectocardiographic (VCG) classic criteria.METHODS:
The study was carried out with 46 patients (27 males) with LBBB. These patients had hypertension (19.5), coronary heart disease (34.7) and 21 patients with no heart disease (45.8).RESULTS:
The statistic analysis using the Cluster method divided the patients in two groups. Group I (22 patients) showed an average rate for the DA (-2 SD) of 1091 for QRS and of 640 for ST-T. For the DA (+2 SD), the average rate was 618 for QRS and 881 for ST-T; group II (24 patients) showed an averaged for the DA (-2 SD) of 1063 for QRS and of 225 for ST-T. For the DA (+2 SD), the averaged rate was 428 for QRS and 600 for ST-T.CONCLUSION:
In general the current ECG/VCG findings, can not differentiate the presence of the association of LBBB to LVH and MI. The DA of ST-T, mainly negative was the most efficient to separate the two groups and help in the differential diagnosis.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Vetorcardiografia
/
Bloqueio de Ramo
/
Função Ventricular Esquerda
/
Mapeamento Potencial de Superfície Corporal
/
Eletrocardiografia
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
/
Aged80
/
Female
/
Humans
/
Male
Idioma:
Pt
Revista:
Arq. bras. cardiol
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
1996
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil