A four-week prehabilitation program in candidates for bariatric surgery improves hemodynamic load, metabolism and cardiac autonomic regulation

2021 ◽  
Author(s):  
D. Lucini ◽  
M. Malacarne ◽  
M. Pagani ◽  
C. Morizzo ◽  
M. Kozakova ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation

Nocturnal cardiac autonomic regulation in Parkinson?s disease

2004 ◽  
Vol 14 (2) ◽  
pp. 119-124 ◽  
Author(s):  
Kalervo Suominen ◽  
Tarja Haapaniemi ◽  
Ky�sti Sotaniemi ◽  
Vilho V. Myllyl� ◽  
Serguei Astafiev ◽  
...  
Keyword(s):  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation

scholarly journals Sidestream cigarette smoke and cardiac autonomic regulation

2013 ◽  
Vol 6 (1) ◽  
pp. 11 ◽  
Author(s):  
Vitor E Valenti ◽  
Luiz Carlos M Vanderlei ◽  
Celso Ferreira ◽  
Fernando L A Fonseca ◽  
Fernando R Oliveira ◽  
...  
Keyword(s):  
Cigarette Smoke ◽  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation

Effect of fingolimod on cardiac autonomic regulation in patients with multiple sclerosis

2015 ◽  
Vol 22 (8) ◽  
pp. 1080-1085 ◽  
Author(s):  
Sakari Simula ◽  
Tomi Laitinen ◽  
Tiina M Laitinen ◽  
Tuula Tarkiainen ◽  
Päivi Hartikainen ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
High Frequency ◽  
Frequency Ratio ◽  
Low Frequency ◽  
Autonomic Regulation ◽  
Rr Interval ◽  
Cardiac Autonomic Regulation ◽  
Multiple Sclerosis Patients

Background: Fingolimod modulates sphingosine-1-phosphate receptors that are also found in cardiovascular tissue. Objective: To investigate the effects of fingolimod on cardiac autonomic regulation prospectively. Methods: Twenty-seven relapsing–remitting multiple sclerosis patients underwent 24-hour electrocardiogram recording before, at the first day of fingolimod treatment (1d) and after three months of continuous dosing (3mo). The time interval between two consecutive R-peaks (RR-interval) was measured. Cardiac autonomic regulation was assessed by the various parameters of heart rate variability. Parasympathetic stimulation prolongs the RR-interval and increases heart rate variability while the effects of sympathetic stimulation are mainly the opposite. The low frequency/high frequency ratio reflects sympathovagal balance. Results: From baseline to 1d, a prolongation of the RR-interval ( P<0.001), an increase in the values of various heart rate variability parameters ( P<0.05 to P<0.001) and a decrease in the low frequency/high frequency ratio ( P<0.05) were demonstrated. At 3mo, although the RR-interval remained longer ( P<0.01), the values of various heart rate variability parameters were lower ( P<0.01 to P<0.001) as compared to baseline. At 3mo, the low frequency/high frequency ratio ( P<0.05) was higher in men than in women although no such difference was found at baseline or at 1d. Conclusions: After an initial increase in parasympathetic regulation, continuous fingolimod dosing shifts cardiac autonomic regulation towards sympathetic predominance, especially in men. Careful follow-up of fingolimod-treated relapsing–remitting multiple sclerosis patients is warranted as sympathetic predominance associates generally with impaired outcome. ClinicalTrials.cov: NCT01704183

scholarly journals Binary symbolic dynamics analysis to detect stress-associated changes of nonstationary heart rate variability

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Conrad Spellenberg ◽  
Peter Heusser ◽  
Arndt Büssing ◽  
Andreas Savelsbergh ◽  
Dirk Cysarz
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Psychological Stress ◽  
Symbolic Dynamics ◽  
Acute Stress ◽  
Stress Test ◽  
Autonomic Regulation ◽  
Rr Interval ◽  
Cardiac Autonomic Regulation ◽  
Acute Psychological Stress

Abstract Psychological stress may have harmful physiological effects and result in deteriorating health. Acute psychological stress acts also on cardiac autonomic regulation and may lead to nonstationarities in the interbeat interval series. We address the requirement of stationary RR interval series to calculate frequency domain parameters of heart rate variability (HRV) and use binary symbolic dynamics derived from RR interval differences to overcome this obstacle. 24 healthy subjects (12 female, 20–35 years) completed the following procedure: waiting period, Trier Social Stress Test to induce acute psychological stress, recovery period. An electrocardiogram was recorded throughout the procedure and HRV parameters were calculated for nine 5-min periods. Nonstationarities in RR interval series were present in all periods. During acute stress the average RR interval and SDNN decreased compared to rest before and after the stress test. Neither low frequency oscillations (LF), high frequency oscillations (HF) nor LF/HF could unambiguously reflect changes during acute stress in comparison to rest. Pattern categories derived from binary symbolic dynamics clearly identified acute stress and accompanying alterations of cardiac autonomic regulation. Methods based on RR interval differences like binary symbolic dynamics should be preferred to overcome issues related to nonstationarities.

Cardiac autonomic regulation in patients undergoing pulmonary vein isolation for atrial fibrillation

2019 ◽  
Vol 20 (5) ◽  
pp. 297-305
Author(s):  
Katarzyna Styczkiewicz ◽  
Giammario Spadacini ◽  
Massimo Tritto ◽  
Giovanni B. Perego ◽  
Mario Facchini ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation

The effect of raloxifene on cardiac autonomic regulation in osteoporotic women

2006 ◽  
Vol 194 (5) ◽  
pp. 1249-1254 ◽  
Author(s):  
Mert Gol ◽  
Nezihi Baris ◽  
Sema Guneri ◽  
Cemal Posaci
Keyword(s):  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation

scholarly journals Abnormal Cardiac Autonomic Regulation in Mice Lacking ASIC3

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ching-Feng Cheng ◽  
Terry B. J. Kuo ◽  
Wei-Nan Chen ◽  
Chao-Chieh Lin ◽  
Chih-Cheng Chen
Keyword(s):  
Heart Rate ◽  
Autonomic Function ◽  
Physiological Role ◽  
Autonomic Regulation ◽  
Pcr Analysis ◽  
Baseline Heart Rate ◽  
Cardiac Autonomic Function ◽  
Sympathetic Function ◽  
Cardiac Autonomic Regulation

Integration of sympathetic and parasympathetic outflow is essential in maintaining normal cardiac autonomic function. Recent studies demonstrate that acid-sensing ion channel 3 (ASIC3) is a sensitive acid sensor for cardiac ischemia and prolonged mild acidification can open ASIC3 and evoke a sustained inward current that fires action potentials in cardiac sensory neurons. However, the physiological role of ASIC3 in cardiac autonomic regulation is not known. In this study, we elucidate the role of ASIC3 in cardiac autonomic function usingAsic3−/−mice.Asic3−/−mice showed normal baseline heart rate and lower blood pressure as compared with their wild-type littermates. Heart rate variability analyses revealed imbalanced autonomic regulation, with decreased sympathetic function. Furthermore,Asic3−/−mice demonstrated a blunted response to isoproterenol-induced cardiac tachycardia and prolonged duration to recover to baseline heart rate. Moreover, quantitative RT-PCR analysis of gene expression in sensory ganglia and heart revealed that no gene compensation for muscarinic acetylcholines receptors and beta-adrenalin receptors were found inAsic3−/−mice. In summary, we unraveled an important role of ASIC3 in regulating cardiac autonomic function, whereby loss of ASIC3 alters the normal physiological response to ischemic stimuli, which reveals new implications for therapy in autonomic nervous system-related cardiovascular diseases.

scholarly journals Cardiac autonomic regulation in autism and Fragile X syndrome: A review.

2015 ◽  
Vol 141 (1) ◽  
pp. 141-175 ◽  
Author(s):  
Jessica Klusek ◽  
Jane E. Roberts ◽  
Molly Losh
Keyword(s):  
Fragile X Syndrome ◽  
Fragile X ◽  
Autonomic Regulation ◽  
Cardiac Autonomic Regulation
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