Abstract
Evaluated parameters of the hemodynamic before and after ablation atrial fibrillation and/or flutter depending on the functional class of chronic heart failure in 74 patients. It was found that patients with the I functional class of chronic heart failure have significantly lower left atrium size compared to III functional class, which is associated with the better efficiency of the radiofrequency ablation in the remote period. Patients with the I and III functional class of chronic heart failure are having increasement of QTc duration in acute period of radiofrequency ablation that could be used as an independent predictor of arrhythmia recurrence. Patients with the I functional class chronic heart failure who failed drug therapy for atrial fibrillation and/or flutter alternative treatment in the form of the radiofrequency ablation should be considered as choice therapy. The levels of heart rate and pulse decreases in I and III functional class of the chronic heart failure in the acute period radiofrequency ablation; systolic and diastolic blood pressure, QRS, left ventricle end-diastolic and left ventricle end-systolic diameter do not change after radiofrequency ablation. Patient I and III functional class of the chronic heart failure are having increasement of QTc duration in acute period of radiofrequency ablation that could be used as an independent predictor of arrhythmia recurrence. Patients with I functional class of the chronic heart failure have significantly lower left atrium size compared to III functional class of the chronic heart failure, which is associated with the best outcome of effectiveness of radiofrequency ablation in the late period.
Highlights
Dilatation of right and left atrium is a common complication in atrial fibrillation/flutter (AF/AFL), especially in the long-term existence of these arrhythmias, due to a violation of the function of the left ventricle, leading to the development of chronic heart failure (CHF) and its progression according to growth of the functional class (FC)
We showed that a smaller LA size was observed in I FC CHF, that was reflected in the study Park J.K. et al [9,10,11], where it was shown that a smaller LA size was associated with a better outcome of Radiofrequency ablation (RFA) in the late period, probably due to fewer structural and hemodynamic changes in the heart
The levels of heart rate and pulse decreases in I and III functional class of the chronic heart failure in the acute period radiofrequency ablation; systolic and diastolic blood pressure, QRS, left ventricle end-diastolic and left ventricle end-systolic diameter do not change after radiofrequency ablation
Summary
Dilatation of right and left atrium is a common complication in atrial fibrillation/flutter (AF/AFL), especially in the long-term existence of these arrhythmias, due to a violation of the function of the left ventricle, leading to the development of chronic heart failure (CHF) and its progression according to growth of the functional class (FC). Radiofrequency ablation (RFA) of arrhythmias in the right or left atrium is effective for the strategy of rhythm control, disappears or significantly reduces the number of arrhythmia paroxysms, which positively affects hemodynamic parameters of the heart, especially the size of the atrium, that is, it affects the risk of progression of CHF [3,4,5,6]. It seems expedient to study hemodynamic parameters in patients with AF/AFL and CHF in the early postoperative period of RFA depending on FC CHF to determine which of them can affect the progression of CHF
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