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We assess the autonomic nervous system response during prolonged percutaneous transluminal coronary angioplasty (PTCA) by heart rate variability analysis using multifractal indices. These indices are also used to evaluate the effects of the PTCA at different arteries. The indices augmented significantly during transient ischemia and reperfusion periods indicating an increase of multifractal degree...
The purpose of this study was to assess the dynamics of the heart rate during myocardial ischemia produced by long PTCA procedures using multifractal signal properties. We found significant complex reactions due to the effects of coronary occlusion on the autonomic control of the cardiac rhythm which suggests that the multifractal indices may be a promising non-linear technique to evaluate the autonomous...
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