Heart Rate Variability: An Index of the Brain-Heart Interaction

Tonhajzerová, Ingrid; Ondrejka, Igor; Turianiková, Zuzana; Javorka, K; Čalkovská, Andrea; Javorka, Michal

doi:10.5772/25763

Cited by 19 publications

(16 citation statements)

References 81 publications

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“…Consecutive values of heart rate time series/their differences are encoded according  Zhukov M.A., 2014 to some transformation rules into a few symbols of a certain alphabet. Subsequently, the dynamics of that symbol string are quantified, providing informa-tion about various qualitative aspects of heart dynamics [28].…”

Section: Discussionmentioning

confidence: 99%

“…In 1865 Claude Bernard delivered a lecture at the Sorbonne on the physiology of the heart and its connections with the brain. His work denoted the first step to systematically investigate the connections between heart and brain [28]. Since then ceaseless efforts had been made to push further our understanding of connections between two cardinal systems of human body.…”

Section: Collaboration and Interconnection Of Two Systemsmentioning

confidence: 99%

“…Recently, along with structural evidence, empirical studies relating RSA to emotion in humans have accumulated. Therefore, the RSA should be considered as an index of both cardiac vagal and emotional regulation [28].…”

Section: Hrv Components Linear Analysismentioning

confidence: 99%

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Analysis of interconnection between central nervous and cardiovascular systems

Zhukov

2014

Electronics and Communications

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Analysis of interconnection between central nervous and cardiovascular systems In the paper the aspects of collaboration and interconnection between central nervous and cardiovascular systems are described. Existing methods to estimate the connectivity between HRV and EEG signals and corresponding up-to-date studies are reviewed. It can be affirmed that there is an apparent interconnection between central nervous and cardiovascular systems on the basis of examined papers. But the definite method of assessment of this interconnection capable to take into account the underlying manner of this connection is yet to be defined. It was determined that further research should be directed into examination of non-linear connectivity between HRV and EEG signals, methods for non-linear connectivity assessment and comparison of their performance. On this basis the new ways to improve the current approaches are expounded. Reference 29, figures 1.

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Section: Discussionmentioning

confidence: 99%

Section: Collaboration and Interconnection Of Two Systemsmentioning

confidence: 99%

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Analysis of interconnection between central nervous and cardiovascular systems

Zhukov

2014

Electronics and Communications

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“…Importantly, proper sympathovagal balance functioning at rest and in response to stress is important for organism flexibility, adaptability, and physical/mental health. In contrast, a lack of dynamic adaptability characterized by autonomic imbalance (i.e., the sympathetic or parasympathetic nervous system dominates over the other) is associated with a higher risk of cardiovascular and other health complications [ 59 , 60 , 61 ]. In addition, inter-individual differences in the stress response system to long-term stress exposition associated with altered autonomic regulation may contribute to the risk for development of mental and other disorders [ 62 ].…”

Section: Autonomic Nervous System Dysregulation As a Potential Mecmentioning

confidence: 99%

“…Mean HR is determined by dynamic interaction of acceleratory sympathetic nervous activity (especially to stress), and dominant deceleratory parasympathetic nervous system activity results in rhythmical beat-to-beat oscillations—heart rate variability (HRV) [ 60 ]. With respect to neurocardiac integrity, Benarroch [ 76 ] described the central autonomic network (CAN) as an integrated regulatory mechanism through which the brain controls complex visceromotor, neuroendocrine, and behavioural responses.…”

Section: Autonomic Nervous System Dysregulation As a Potential Mecmentioning

confidence: 99%

Role of Neuroendocrine, Immune, and Autonomic Nervous System in Anorexia Nervosa-Linked Cardiovascular Diseases

Sekaninova

Olexova

Višňovcová

et al. 2020

IJMS

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Anorexia nervosa represents a severe mental disorder associated with food avoidance and malnutrition. In patients suffering from anorexia nervosa, cardiovascular complications are the main reason leading to morbidity and mortality. However, the origin and pathological mechanisms leading to higher cardiovascular risk in anorexia nervosa are still unclear. In this aspect, the issue of exact pathological mechanisms as well as sensitive biomarkers for detection of anorexia nervosa-linked cardiovascular risk are discussed. Therefore, this review synthesised recent evidence of dysfunction in multiple neuroendocrine axes and alterations in the immune system that may represent anorexia nervosa-linked pathological mechanisms contributing to complex cardiovascular dysregulation. Further, this review is focused on identification of non-invasive biomarkers for the assessment of increased cardiovascular risk in anorexia nervosa that can be linked to a clinical application. Complex non-invasive assessment of cardiovascular autonomic regulation—cardiac vagal control (heart rate variability), sympathetic vascular activity (blood pressure variability), and cardiovascular reflex control (baroreflex sensitivity)—could represent a promising tool for early diagnosis, personalized therapy, and monitoring of therapeutic interventions in anorexia nervosa particularly at a vulnerable adolescent age.

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