A intervenção coronária percutânea melhora a função diástólica do ventrículo esquerdo em pacientes com angina estável?

• Autor(a) principal: Hueb, João Carlos [UNESP]
• Data de Publicação: 2011
• Outros Autores: Hepner, Adriana [UNESP], Hueb, Régis André Severino, Okoshi, Katashi [UNESP], Zanati, Silméia Garcia [UNESP], Matsubara, Beatriz Bojikian [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://departamentos.cardiol.br/dic/publicacoes/revistadic/revista/2011/portugues/Revista04/04-a-intervencao.pdf; http://hdl.handle.net/11449/140477
• topic: Angioplasty balloon; Coronary; Ventricular dysfunction left; Angina pectoris; Echocardiography; Angioplastia coronária com balão; Disfunção ventricular esquerda; Angina pectoris; Ecocardiografia

Objective: The aim of this study was to evaluate by echocardiogram, the effect of percutaneous coronary intervention (PCI) in left ventricular (LV) diastolic function indices, obtained by tissue Doppler imaging and measurement of left atrial volume (LAV), three months after the procedure. Methods: This was a longitudinal and prospective study including 66 (40 men) consecutive patients with critical stenosis in one coronary vessel. Transthoracic echocardiography was performed 24 hours before and three months after PCI. Medial and lateral mitral annulus peak velocity of the waves E’ and A’, and the averaged ratio E’/A’ were obtained. Early transmitral flow velocity was measured, E wave and the ratio E/E’ was calculated. The LAV was determined by the Simpson’s method. Doppler echocardiography measurements followed the recommendations of the American Society of Echocardiography. Results: Mean age was 61 + years. PCI was performed in a single vessel. By determining the average value of the wave E ‘of E’/A’, E/E’ and LAV of all patients, we found no statistically significant variations in these indices after PCI. Conclusion: This study showed that PCI of a single vessel with a severe lesion, is not sufficient to improve of LV diastolic function in patients with stable angina, evaluated by tissue Doppler and LAV.