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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Rate Adaptive Atrioventricular Delay in the Cardiac Pacing
verfasst von : Kazimierz Pęczalski, Dariusz Wojciechowski, Tadeusz Palko
Erschienen in: Information Technologies in Biomedicine, Volume 4
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Physiological shortening of atrioventricular (AV) delay with increasing of heart rate is well documented in healthy human beings. The specialized algorithms were developed that control the AV delay. The goal of our study is the assessment of the impact of varying heart rate on the optimal AV delay in paced patients. The SV values were assessed by the Impedance Cardiography (IC) and Penaz Plethyzmography (PP) at the same time for each patient. The statistical analysis has showed no statistically significant differences between results obtained simultaneously by both evaluation methods. Three types of AV optimal changes following pacing rate increase were found: 1. physiological (shorter), 2. neutral (no change), 3. atypical (longer).