Modificações eletrovetorcardiográficas após ablaçäo septal percutânea na cardiomiopatia hipertrófica obstrutiva e possíveis causas anatômicas / Vector electrocardiographic alterations after percutaneous septal ablation in obstructive hypertrophic cardiomyopathy. Possible anatomic causes
Arq. bras. cardiol
;
79(5): 466-475, nov. 2002. ilus, tab
Artigo
em Português, Inglês
| LILACS, SES-SP
| ID: lil-325517
ABSTRACT
OBJECTIVE - Analyze the dromotropic disturbances (vector-electrocardiographic), and the possible anatomic causes, provoked by selective alcohol injection in the septal branch, for percutaneous treatment, of obstructive hypertrophic cardiomyopathy. METHODS - Ten patients with a mean age of 52.7 years underwent percutaneous septal ablation (PTSA) from october 1998; all in functional class III/IV). Twelve-lead electrocardiogram was performed prior to and during PTSA, and later electrocardiogram and vectorcardiogram according to Frank's method. The patients were followed up for 32 months. RESULTS - On electrocardiogram (ECG) prior to PTSA all patients had sinus rhythm and left atrial enlargement, 8 left ventricular hypertrophy of systolic pattern. On ECG immediately after PTSA, 8 had complete right bundle-branch block; 1 transient total atrioventricular block; 1 alternating transient bundle-branch block either right or hemiblock. On late ECG 8 had complete right bundle-branch block confirmed by vectorcardiogram, type 1 or Grishman. CONCLUSION - Septal fibrosis following alcohol injection caused a predominance of complete right bundle-branch block, different from surgery of myotomy/myectomy
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Vetorcardiografia
/
Cardiomiopatia Hipertrófica
/
Bloqueio de Ramo
/
Ablação por Cateter
/
Etanol
/
Septos Cardíacos
Tipo de estudo:
Estudo de etiologia
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
/
Português
Revista:
Arq. bras. cardiol
Ano de publicação:
2002
Tipo de documento:
Artigo
Instituição/País de afiliação:
Instituto Dante Pazzanese de Cardiologia/BR
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