Early assessment of percutaneous coronary interventions for chronic total occlusions analyzed by novel echocardiographic techniques
Clinics
; Clinics;68(10): 1333-1337, out. 2013. tab, graf
Article
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| LILACS
| ID: lil-689978
Biblioteca responsable:
BR1.1
ABSTRACT
OBJECTIVE:
Successful revascularization of chronic total occlusions has been associated with improved left ventricular systolic function, reduced anginal symptoms, increased exercise capacity, and increased survival. This study was conducted to determine the impact of revascularization in chronic total occlusion on left ventricular function using novel echocardiographic techniques.METHODS:
A total of 129 patients with chronic total occlusion who underwent revascularization between April 2011 and November 2012 were included in this study. Echocardiographic assessments with two-dimensional speckle tracking echocardiography and real-time three-dimensional echocardiography were performed before the procedure and one month after the procedure. The left ventricular ejection fraction, left ventricular volumes, and three-dimensional systolic dyssynchrony index were quantified.RESULTS:
An immediate procedural success was obtained in 118 patients (91.5%). There were no acute or subacute stent thromboses during follow-up. The mean left ventricular ejection fraction significantly increased (p<0.001), while the left ventricular end-diastolic and end-systolic volumes significantly decreased (p = 0.001 and p<0.001, respectively). The three-dimensional systolic dyssynchrony index also decreased significantly (p<0.001). The global longitudinal strain showed a significant increase after successful revascularization (p<0.001). An increase in the global longitudinal strain was correlated with an increase in the left ventricular ejection fraction (r = 0.27, p = 0.02). The patients with a left ventricular ejection fraction ≥50% displayed a greater improvement in the global longitudinal strain, and the patients with diabetes showed less improvement.CONCLUSIONS:
Using novel echocardiographic techniques, our results showed that restoring the coronary blood flow in chronic total occlusion patients reduces the left ventricular volumes ...Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Función Ventricular Izquierda
/
Ecocardiografía Tridimensional
/
Oclusión Coronaria
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Intervención Coronaria Percutánea
Límite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Clinics
Asunto de la revista:
MEDICINA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Turquía
Pais de publicación:
Brasil