Scatterplots (displays of each RR interval as a function of the preceding RR interval) provide a visual assessment of nonrandom variations in heart rate. In a recent study, scatterplot length, width, and area correlated with time-domain measures of heart rate variability (HRV) in survivors of recent myocardial infarction (MI) receiving a β blocker. We performed this study to (1) assess the relation between time-domain measures of HRV and scatterplot indexes in survivors of remote MI not receiving metoprolol and (2) to determine if metoprolol influenced scatterplot indexes. In 28 survivors of remote MI, HRV time-domain variables and scatterplot indexes were measured after 2 weeks off and 2 weeks on metoprolol. Off metoprolol, scatterplot len...
Objective. This study compares the statistical characteristics of interaction between 0.1 Hz oscilla...
Heart rate variability (HRV) analysis is proposed as a reliable tool for estimation of the sympatho-...
Objectives This study sought to compare the influence of changes in systolic interval on the negativ...
The autonomic nervous system plays an important role in the occurrence of symptomatic and silent myo...
This article compares different methods of scatterplot analysis to assess the optimal methodology. T...
We investigated whether analysis of heart rate (HR) variability may be used to predict the efficacy ...
This study analyzed, with spectral techniques, the effects of atenolol or metroprolol on RR interval...
BACKGROUND: The scatterplot of R-R intervals has several unique features. Its numerical evaluation m...
BACKGROUND: Heart rate, measured as beat-to-beat intervals, is not constant and varies in time. This...
To evaluate the effects of Verapamil and Metoprolol on improving heart rate variability(HRV) in pati...
ObjectivesThis study sought to compare the influence of changes in systolic interval on the negative...
BACKGROUND:T-wave area dispersion (TW-Ad) is a novel electrocardiographic (ECG) repolarization marke...
Patients with congestive heart failure (CHF) have reduced heart rate variability (HRV). Beta-blocker...
The rate and modulation of the heart beat (i.e. heart rate variability; HRV) are controlled by the a...
Background T-wave area dispersion (TW-Ad) is a novel electrocardiographic (ECG) repolarization marke...
Objective. This study compares the statistical characteristics of interaction between 0.1 Hz oscilla...
Heart rate variability (HRV) analysis is proposed as a reliable tool for estimation of the sympatho-...
Objectives This study sought to compare the influence of changes in systolic interval on the negativ...
The autonomic nervous system plays an important role in the occurrence of symptomatic and silent myo...
This article compares different methods of scatterplot analysis to assess the optimal methodology. T...
We investigated whether analysis of heart rate (HR) variability may be used to predict the efficacy ...
This study analyzed, with spectral techniques, the effects of atenolol or metroprolol on RR interval...
BACKGROUND: The scatterplot of R-R intervals has several unique features. Its numerical evaluation m...
BACKGROUND: Heart rate, measured as beat-to-beat intervals, is not constant and varies in time. This...
To evaluate the effects of Verapamil and Metoprolol on improving heart rate variability(HRV) in pati...
ObjectivesThis study sought to compare the influence of changes in systolic interval on the negative...
BACKGROUND:T-wave area dispersion (TW-Ad) is a novel electrocardiographic (ECG) repolarization marke...
Patients with congestive heart failure (CHF) have reduced heart rate variability (HRV). Beta-blocker...
The rate and modulation of the heart beat (i.e. heart rate variability; HRV) are controlled by the a...
Background T-wave area dispersion (TW-Ad) is a novel electrocardiographic (ECG) repolarization marke...
Objective. This study compares the statistical characteristics of interaction between 0.1 Hz oscilla...
Heart rate variability (HRV) analysis is proposed as a reliable tool for estimation of the sympatho-...
Objectives This study sought to compare the influence of changes in systolic interval on the negativ...