JANOUŠEK, Oto, Marina RONZHINA, Marie NOVÁKOVÁ, Ivo PROVAZNÍK and Jana KOLÁŘOVÁ. Poincaré Plot in Ischemic Rabbit Hearts. Computing in Cardiology. Belfast, UK: IEEE, 2010, vol. 37, No 1, p. 919-922. ISSN 0276-6574.
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Basic information
Original name Poincaré Plot in Ischemic Rabbit Hearts
Authors JANOUŠEK, Oto (203 Czech Republic), Marina RONZHINA (643 Russian Federation), Marie NOVÁKOVÁ (203 Czech Republic, guarantor, belonging to the institution), Ivo PROVAZNÍK (203 Czech Republic) and Jana KOLÁŘOVÁ (203 Czech Republic).
Edition Computing in Cardiology, Belfast, UK, IEEE, 2010, 0276-6574.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30105 Physiology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14110/10:00049678
Organization unit Faculty of Medicine
Keywords in English Poincaré plot; heart rate variability; rabbit heart; ischemia
Tags International impact, Reviewed
Changed by Changed by: Mgr. Michal Petr, učo 65024. Changed: 10/4/2012 08:39.
Abstract
Heart rate variability can be evaluated by Poincaré plot. Its parameter SD1 describes short-term variability which is mainly caused by respiratory sinus arrhythmia, whereas SD2 describes long-term variability. Ischemia is believed to affect non-autonomic mechanism of the heart and as a result of it also HRV. However not only this mechanism is responsible for HRV changes, because ischemia affects both parameters significantly even in isolated denervated hearts. Both parameters - SD1 and SD2 - show lower values in ischemic phases of experiment than in reperfusion ones. Shape of Poincaré plots attractor has a form of line both in ischemic and reperfusion periods; however in reperfusion phases of experiment the attractor is longer.
Links
GA102/07/1473, research and development projectName: Optické metody registrace elektrických potenciálů a koncentrace vápníku v srdci s laserovou stabilizací
Investor: Czech Science Foundation
MSM0021622402, plan (intention)Name: Časná diagnostika a léčba kardiovaskulárních chorob
Investor: Ministry of Education, Youth and Sports of the CR, Early diagnostics and treatment of cardiovascular diseases
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