Magrans Rudys, Gomis Pedro, Caminal Pere, Wagner Galen
Dept. ESAII, Universitat Politècnica de Catalunya (UPC), and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Pau Gargallo 5, 08028, Barcelona, Spain.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:1808-11. doi: 10.1109/IEMBS.2009.5333930.
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.
我们通过使用多重分形指数的心率变异性分析来评估长时间经皮冠状动脉腔内血管成形术（PTCA）期间自主神经系统的反应。这些指数还用于评估PTCA对不同动脉的影响。在短暂缺血和再灌注期间，这些指数显著增加，表明多重分形程度增加，对心跳波动的长程依赖性降低。这表明在冠状动脉闭塞期间发生了心率自主控制的显著多重分形复杂反应。关键词：多重分形分析、心跳波动、心肌缺血、冠状动脉闭塞。
