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Updated: Jan 8, 2026

Author Spotlight: A Novel Standardized Technique for Real-Time Biomedical Imaging of Acute Myocardial Injury
Published on: March 22, 2024
Multifractal characterization of the autonomous nervous system during prolonged coronary artery occlusion
Rudys Magrans1, Pedro Gomis, Pere Caminal
1Dept. ESAII, Universitat Politècnica de Catalunya (UPC), and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Pau Gargallo 5, 08028, Barcelona, Spain. rudys.magrans@upc.edu
Abstract:
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 and a decrease of the long-range dependence on heartbeat fluctuations. This indicates that significant multifractal complex reactions of autonomic control of the heart rate occurred during coronary artery occlusions. Key words: multifractal analysis, heartbeat fluctuations, myocardial ischemia, coronary artery occlusion.
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