Successive RR Interval Analysis of PVC With Sinus Rhythm Using Fractal Dimension, Poincaré Plot and Sample Entropy Method

Abstract

Premature ventricular contractions (PVC) are premature heartbeats originating from the ventricles of the heart. These heartbeats occur before the regular heartbeat. The Fractal analysis is most mathematical models produce intractable solutions. Some studies tried to apply the fractal dimension (FD) to calculate of cardiac abnormality. Based on FD change, we can identify different abnormalities present in Electrocardiogram (ECG). Present of the uses of Poincaré plot indexes and the sample entropy (SE) analyses of heart rate variability (HRV) from short term ECG recordings as a screening tool for PVC. Poincaré plot indexes and the SE measure used for analyzing variability and complexity of HRV. A clear reduction of standard deviation (SD) projections in Poincaré plot pattern observed a significant difference of SD between healthy Person and PVC subjects. Finally, a comparison shows for FD, SE and Poincaré plot parameters.

Co-Existence of hypertension worsens post-exercise cardiac autonomic recovery in type 2 diabetes

“…The parameter SD1 has been correlated with HF power (vagal activity), whereas SD2 has been correlated with sympathetic activity. 28 …”

“…Non-linear analysis included the Poincare parameters: SD1 and SD2. 28 Combination of all these variables of HRV comprehensively provides information regarding the relative contributions from sympathetic and parasympathetic branches of ANS to the heart. 29 …”

Factors Affecting Heart Rate Variability

“…Етническият произход също оказва влияние върху ВСЧ, като е установено, че ВСЧ, измерена в покой при афро-американски индивиди е по-висока от тази на американски индивиди с европейски произход [6]. Настоящото изследване оценява свързаните със стареенето промени във ВСЧ, използвайки линейни и нелинейни методи [2], [5], [14], [20], [24], [25], [28]. Стойностите на изследваните параметри са показани в Таблица 1.…”