Comparison of the Usefulness of Heart Rate Variability Versus Exercise Stress Testing for the Detection of Myocardial Ischemia in Patients Without Known Coronary Artery Disease

Exploring the relationship between posttraumatic stress disorder symptoms and momentary heart rate variability

“…HRV captures heart rate regulation by both the sympathetic (SNS) and PSNS divisions of the autonomic nervous system (ANS) and is one psychophysiological manifestation of stress on the human body. As a widely used marker of cardiac autonomic function, HRV is reduced in several chronic conditions such as coronary heart disease and myocardial ischemia (Dekker et al, 2000; Goldkorn et al, 2015). Both low-frequency (LF) and high-frequency (HF) components of HRV have been associated with increased cardiovascular disease (CVD) risk and new cardiac events in diabetic and CVD sufferers (Hadase et al, 2004; Liao et al, 2002; Gerritsen et al 2001).…”

Predictors of aging based on the analysis of heart rate variability

“…Considering the opinion of authors that the analysis of heart rate variability can be used as an important additional highly sensitive noninvasive tool in early diagnostics of cardiovascular diseases, improvement of autonomic dysfunction prognosis, survivability of patients, and other clinical applications, the discovered dependencies and the availability of standardized methods of registration and computation of the chosen heart rate variability indices allow to confirm the possibility of using the chosen heart rate variability indices as predictors of aging.…”

“…Researchers have noted the prognostic significance of heart rate variability indices, in particular, the reduction of variability and early diagnostics of cardiovascular diseases, including those in the setting of accompanying diseases . The results of many studies proved the possibility of using heart rate variability as a predictor of lethal outcome risks among patients …”

“…9 Nowadays, the study of heart rate variability covers a wide range of problems-from indices of variability of instant R-R intervals 10 to reasons behind such variability that are related to nonlinear effects of the sympathetic and parasympathetic nervous systems, humoral regulation, effect of exercise stress, 11 drugs, emotional, and various stress factors. 12,13 Researchers have noted the prognostic significance of heart rate variability indices, in particular, the reduction of variability and early diagnostics of cardiovascular diseases, [14][15][16][17] including those in the setting of accompanying diseases. [18][19][20][21][22] The results of many studies proved the possibility of using heart rate variability as a predictor of lethal outcome risks among patients.…”

Relationship between QT and JT peak interval variability in prepubertal children

“…Body surface electrocardiography (ECG) can provide electrophysiological information on the myocardium, and is useful for evaluation of autonomic balance and arrhythmogenic substrates, and for prediction of patient prognosis. Heart rate variability is a measure of autonomic balance (Goldkorn et al., ; Akselrod et al., ) and the ventricular late potential (Simson, ; Malik et al., ), and was recently used to determine the delay and disturbance of myocardial depolarization based on the QRS complex, the heterogeneity of transmural dispersion of repolarization (Antzelevitch, Yan, & Shimizu, ; Smetana et al., ; Antzelevitch, ), and QT dispersion, for evaluation of repolarization based on the potential differences between myocardial regions (Napolitano, Priori, & Schwartz, ).…”