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Long-term results of the maze procedure on left ventricular function for persistent atrial fibrillation associated with mitral valve disease

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Abstract

Although the maze procedure is often performed as a surgical treatment for atrial fibrillation (AF) combined with mitral valve surgery, the long-term efficacy of the maze procedure concerning cardiac function has not been determined. The aim of this study was to assess long-term results of the maze procedure for left ventricular function in patients with persistent AF associated with mitral valve disease. We analyzed 38 patients who underwent the maze procedure for persistent AF and mitral valve surgery. The cardiothoracic ratio on chest X-ray and the left atrial dimension, left ventricular end-diastolic dimension, left ventricular end-systolic dimension and left ventricular ejection fraction on transthoracic echocardiography were evaluated before and 6 years after the maze procedure. Twenty-two patients maintained sinus rhythm (SR group) and 16 patients had recurrence of permanent AF (AF group) after the maze procedure. Preoperative cardiac function and the methods of mitral surgery were similar between the two groups. At the latest follow-up, left ventricular function tended to be better in the SR group than in the AF group. Cardiovascular events occurred more often in the AF group during follow-up (50 vs. 18%, p < 0.05). This retrospective study revealed that maintaining the sinus rhythm after the maze procedure for patients who underwent mitral valve surgery might be important for preserving better long-term left ventricular function and result in fewer cardiovascular events.

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Correspondence to Teruhisa Yoshida.

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Fukuda, Y., Yoshida, T., Inage, T. et al. Long-term results of the maze procedure on left ventricular function for persistent atrial fibrillation associated with mitral valve disease. Heart Vessels 27, 53–57 (2012). https://doi.org/10.1007/s00380-011-0117-5

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  • DOI: https://doi.org/10.1007/s00380-011-0117-5

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