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Revista chilena de cardiología

versão On-line ISSN 0718-8560


FLORES, Pablo et al. Clinical and echocardiographi follow up after cardiac resynchronization. Rev Chil Cardiol [online]. 2016, vol.35, n.2, pp.152-157. ISSN 0718-8560.

Background: Cardiac resynchronization therapy (CRT) is gaining relevance as an important therapy in patients with advanced heart failure. In Chile, the clinical and echocardiographic follow-up of these patients has not been sufficiently documented.  Aim: To describe the clinical and echocardiographic changes after CRT in patients treated at the cardiology department of the Carlos Van Buren Hospital in Valparaiso, undergoing the procedure between 2013 and 2015. Methods: A descriptive analysis of 10 patients with a diagnosis of dilated cardiomyopathy submitted to CRT was performed. Clinical and echocardiographic data was collected before and sixth months after the procedure. Frequency and median were used to describe the results. Responders were defined as patients who improved their functional capacity after the intervention. Results: Of all patients undergoing CRT, there were 3 (30%) non-responder patients. In responders improvement in functional capacity and increased ejection fraction or decreased left ventricular diastolic diameter or reduction of mitral regurgitation was observed. No reduction was observed in the number of hospitalizations annually. Conclusion: The results support the usefulness of CRT in treating advanced heart failure in a selected group of patients. Further studies are needed to better define our national reality and predictors of a favorable response after the procedure.

Palavras-chave : Cardiac resynchronization; heart failure; dilated cardiomyopathy.

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