Results 251 to 260 of about 1,599,988 (305)
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Journal of Electrocardiology, 2003
Survivors of acute myocardial infarction are at increased risk of sudden cardiac death. Recent trials have demonstrated that in selected high risk post-myocardial infarction patients mortality can be significantly reduced by implantation of an autonomic cardioverter defibrillator.
Axel, Bauer, Georg, Schmidt
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Survivors of acute myocardial infarction are at increased risk of sudden cardiac death. Recent trials have demonstrated that in selected high risk post-myocardial infarction patients mortality can be significantly reduced by implantation of an autonomic cardioverter defibrillator.
Axel, Bauer, Georg, Schmidt
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Current Opinion in Cardiology, 1998
Heart rate variability is a recognized tool for the estimation of cardiac autonomic modulations. Recently, several studies have advanced the field of heart rate variability in three areas: 1) in technical modes of electrocardiogram processing and heart rate variability assessment, 2) in physiologic understanding and interpretation, and 3) in clinical ...
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Heart rate variability is a recognized tool for the estimation of cardiac autonomic modulations. Recently, several studies have advanced the field of heart rate variability in three areas: 1) in technical modes of electrocardiogram processing and heart rate variability assessment, 2) in physiologic understanding and interpretation, and 3) in clinical ...
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Medical & Biological Engineering & Computing, 1979
We describe the design of an instrument that can acquire and store the average heart rate of a subject over 256 time intervals of predetermined length (1 or 6 min) during normal daily activities. The instrument consists of two units: a portable recorder, worn by the patient, detects and counts heart beats, and stores their average in memory, and a ...
H, Baharestani +3 more
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We describe the design of an instrument that can acquire and store the average heart rate of a subject over 256 time intervals of predetermined length (1 or 6 min) during normal daily activities. The instrument consists of two units: a portable recorder, worn by the patient, detects and counts heart beats, and stores their average in memory, and a ...
H, Baharestani +3 more
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Heart rate and heart rate variability in emergency medicine
The American Journal of Emergency Medicine, 2020Tachycardia may be indicative of mental stress, which in turn can decrease performance, reduce information processing capacity, and hinder memory recall. The objective of this study is to examine heart rate trends present among emergency medicine trainees over a standard emergency room shift to measure the frequency and severity of stress experienced ...
Shane, Jenks +5 more
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Heart Rate Perception and Heart Rate Control
Psychophysiology, 1975ABSTRACTTwenty‐one subjects look the Autonomic Perception Questionnaire (APQ) and later were given another test of ability to perceive heart activity. The second test involved subjects' tracking of their own heart rates (HR). They were then tested for ability to increase and decrease HR from their resting baseline levels.
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2013
Heart rate variability (HRV) provides indirect insight into autonomic nervous system tone, and has a well-established role as a marker of cardiovascular risk. Recent decades brought an increasing interest in HRV assessment as a diagnostic tool in detection of autonomic impairment, and prediction of prognosis in several neurological disorders.
Iwona, Cygankiewicz, Wojciech, Zareba
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Heart rate variability (HRV) provides indirect insight into autonomic nervous system tone, and has a well-established role as a marker of cardiovascular risk. Recent decades brought an increasing interest in HRV assessment as a diagnostic tool in detection of autonomic impairment, and prediction of prognosis in several neurological disorders.
Iwona, Cygankiewicz, Wojciech, Zareba
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Current Opinion in Cardiology, 2016
Resting heart rate has long been thought to be a risk factor in cardiovascular disease and a prognostic factor in heart failure. β-Blockers were originally used in heart failure for their heart rate control abilities. However, they also have negative inotropic effects contributing to their overall benefit.
Amelia M C, Yip +2 more
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Resting heart rate has long been thought to be a risk factor in cardiovascular disease and a prognostic factor in heart failure. β-Blockers were originally used in heart failure for their heart rate control abilities. However, they also have negative inotropic effects contributing to their overall benefit.
Amelia M C, Yip +2 more
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Progress in Cardiovascular Diseases, 2013
Heart rate turbulence (HRT) is a baroreflex-mediated biphasic reaction of heart rate in response to premature ventricular beats. Heart rate turbulence is quantified by: turbulence onset (TO) reflecting the initial acceleration of heart rate following premature beat and turbulence slope (TS) describing subsequent deceleration of heart rate. Abnormal HRT
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Heart rate turbulence (HRT) is a baroreflex-mediated biphasic reaction of heart rate in response to premature ventricular beats. Heart rate turbulence is quantified by: turbulence onset (TO) reflecting the initial acceleration of heart rate following premature beat and turbulence slope (TS) describing subsequent deceleration of heart rate. Abnormal HRT
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Mental load, heart rate and heart rate variability
Psychologische Forschung, 1970"Several investigators have shown that diminished sinus arrhythmia can be seen as an indication of increased mental load. The present experiment deals with the influence of different levels of mental load, operationalized as the number of binary choices per minute, on the regularity of the heart rate. Also . . .
Blitz, P.S., Hoogstraten, J., Mulder, G.
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Progress in Cardiovascular Diseases, 2012
Heart rate variability (HRV) non-invasively assesses the activity of the autonomic nervous system. During the past 30 years, an increasing number of studies have related the imbalance of the autonomic nervous system (as assessed by HRV) to several pathophysiogical conditions, particularly in the setting of cardiovascular disease. Sudden death, coronary
B. Xhyheri +4 more
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Heart rate variability (HRV) non-invasively assesses the activity of the autonomic nervous system. During the past 30 years, an increasing number of studies have related the imbalance of the autonomic nervous system (as assessed by HRV) to several pathophysiogical conditions, particularly in the setting of cardiovascular disease. Sudden death, coronary
B. Xhyheri +4 more
openaire +2 more sources