A Noteworthy Contribution: The Sympatho-vagal Balance: a Biased History
نویسندگان
چکیده
It is for me a great pleasure to host on this issue of AMPS QT Prof. Massimo Pagani, a personal friend and an inspiring figure from the very early days of my career when I was working on my thesis at the Politecnico of Milan. Since then, we built a creative research relationship that continued through the years and that is still productive, with direct impact on all AMPS technology that relates to some degree to the assessment of the autonomic nervous system.
منابع مشابه
Low to high frequency ratio of heart rate variability spectra fails to describe sympatho-vagal balance in cardiac patients.
Heart rate variability (HRV) reflects an influence of autonomic nervous system on heart work. In healthy subjects, ratio between low and high frequency components (LF/HF ratio) of HRV spectra represents a measure of sympatho-vagal balance. The ratio was defined by the authorities as an useful clinical tool, but it seems that it fails to summarise sympatho-vagal balance in a clinical setting. Va...
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The extent to which variation in posture and respiration can confound pre-ejection period and respiratory sinus arrhythmia (RSA) as indices of cardiac sympatho-vagal activity was examined. Within-subjects changes in these measures were assessed in 36 subjects during different postures and (paced) respiratory frequencies. Changes from supine to sitting to standing led to reduced RSA values and l...
متن کاملLight and diurnal cycle affect autonomic cardiac balance in human; possible role for the biological clock.
The morning shift in cardiac sympatho-vagal balance seems involved in the increased risk of cardiovascular incidents at that time. To investigate the contribution of the biological clock in autonomic cardiac control, we investigated the presence of a diurnal rhythm independent of external factors, and of a circadian phase-dependent effect of moderate light in healthy volunteers. Recordings of h...
متن کاملLipophilic versus hydrophilic beta(1) blockers and the cardiac sympatho-vagal balance during stress and daily activity in patients after acute myocardial infarction.
OBJECTIVE To compare the effects of a lipophilic and a hydrophilic beta(1) blocker on cardiac sympatho-vagal balance during daytime activity and stress in patients four to six weeks after myocardial infarction. DESIGN Randomised, double blind, crossover study comparing the effect of atenolol (50 mg once daily) with metoprolol CR (100 mg once daily) with treatment periods of four weeks. SETT...
متن کاملSympatho-vagal control of heart rate variability in patients treated with suppressive doses of L-thyroxine for thyroid cancer.
OBJECTIVE This study aimed to analyze the autonomic control of heart rate variability (HRV) in subjects receiving chronic l-thyroxine (l-T4) treatment after total thyroidectomy and (131)I therapy for differentiated thyroid carcinoma. METHODS Blood pressure (BP) and sympatho-vagal activity (evaluated by power spectral analysis (PSA) of time-domain parameters of HRV) were studied in clinostatis...
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تاریخ انتشار 2016