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Clinical, Electrocardiographic, and Procedural Characteristics of Patients With Coronary Chronic Total Occlusions
Korean Circulation Journal ; : 111-115, 2009.
Artigo em Inglês | WPRIM | ID: wpr-113698
ABSTRACT
BACKGROUND AND

OBJECTIVES:

Percutaneous coronary intervention for chronic total occlusion lesions is technically difficult despite equipment advances. Changes in electrocardiographic patterns, such as Q and T waves, during chronic total occlusion can provide information about procedural success and myocardial viability. In this study, we investigated clinical, electrocardiographic, and procedural characteristics of chronic total occlusions. SUBJECTS AND

METHODS:

Patients (2,635) who underwent coronary angiography between January 2006 and July 2007 at six Catholic University Hospitals were identified using a dedicated Internet database.

RESULTS:

A total of 195 patients had total occlusion lesions (7.4%). Percutaneous coronary interventions were attempted in 136 total occlusion lesions (66.0%) in 134 patients. Successful recanalization with stent implantation was accomplished in 89 lesions, with a procedural success rate of 66.4%. One procedure-related death occurred because of no-reflow phenomenon. After excluding 8 patients with bundle branch block, Q and T wave inversions were observed in 60 (32.1%) and 78 patients (41.7%), respectively. The presence of Q waves was associated with severe angina, decreased left ventricular ejection fraction, regional wall motion abnormality, and T wave inversion, but was not related to procedural success.

CONCLUSION:

Percutaneous coronary intervention is a safe and useful procedure for the revascularization of coronary chronic total occlusion lesions. The procedural success rate was not related to the presence of pathologic Q waves, which were associated with severe angina and decreased left ventricular function.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Volume Sistólico / Bloqueio de Ramo / Stents / Função Ventricular Esquerda / Angiografia Coronária / Angioplastia / Internet / Eletrocardiografia / Oclusão Coronária / Fenômeno de não Refluxo Limite: Humanos Idioma: Inglês Revista: Korean Circulation Journal Ano de publicação: 2009 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Volume Sistólico / Bloqueio de Ramo / Stents / Função Ventricular Esquerda / Angiografia Coronária / Angioplastia / Internet / Eletrocardiografia / Oclusão Coronária / Fenômeno de não Refluxo Limite: Humanos Idioma: Inglês Revista: Korean Circulation Journal Ano de publicação: 2009 Tipo de documento: Artigo