Results 11 to 20 of about 7,963,748 (304)

Circadian rhythm of heart rate and heart rate variability in pregnancy

npj Women's Health
The autonomic nervous system (ANS) regulates physiological changes during pregnancy, supporting fetal development and homeostasis. Heart rate (HR) and heart rate variability (HRV) are well-established, non-invasive biomarkers of ANS function.
Mahkameh Rasouli, Mohammad Feli, Iman Azimi, Shahab Haghayegh, Fatemeh Sarhaddi, Hannakaisa Niela-Vilen, Anna Axelin, Pasi Liljeberg, Amir M. Rahmani   +8 more
doaj   +5 more sources

Heart Rate Variability - A Historical Perspective [PDF]

Frontiers in Physiology, 2011
Heart rate variability (HRV), the beat-to-beat variation in either heart rate or the duration of the R-R interval – the heart period, has become a popular clinical and investigational tool.
George E Billman
doaj   +3 more sources

Heart rate variability analysis in general medicine. [PDF]

, 2003
Autonomic nervous system plays an integral role in homeostasis. Autonomic modulation can frequently be altered in patients with cardiac disorders as well as in patients with other critical illnesses or injuries.
Malik, M, Gang, Y
core   +3 more sources

Impaired cardiac autonomic nervous control after cardiac bypass surgery for congenital heart disease [PDF]

, 2009
We undertook a study to describe changes in heart rate variability (HRV) postoperatively in children undergoing cardiac bypass surgery for congenital heart disease (CHD).
McGlone, Laura, Financial Support Department of Cardiac Surgery and Cardiology, The Royal Hospital for Sick Children, Yorkhill, Glasgow (Funder), Patel, Neil, Danton, Mark D., , Financial Support Department of Cardiac Surgery and Cardiology,, Young, David, N. Patel, D. Young, L. McGlone, M. D. Danton   +9 more
core   +4 more sources

Circadian rhythm of heart rate and heart rate variability [PDF]

Archives of Disease in Childhood, 2000
Measurements of heart rate variability (HRV) are increasingly used as markers of cardiac autonomic activity.To examine circadian variation in heart rate and HRV in children.A total of 57 healthy infants and children, aged 2 months to 15 years, underwent ambulatory 24 hour Holter recording.
Massin, M. M., Maeyns, K., Withofs, Nadia, Ravet, Françoise, Gérard, Paul   +4 more
openaire   +2 more sources

Heart rate variability

Clinical Cardiology, 1990
AbstractReduced heart rate variability carries an adverse prognosis in patients who have survived an acute myocardial infarction. This article reviews the physiology, technical problems of assessment, and clinical relevance of heart rate variability.
M, Malik, A J, Camm
openaire   +2 more sources

Determinants of short-period heart rate variability in the general population [PDF]

, 2001
Decreased heart rate variability (HRV) is associated with a worse prognosis in a variety of diseases and disorders. We evaluated the determinants of short-period HRV in a random sample of 149 middle-aged men and 137 women from the general population ...
Kuch, Bernhard, Sinnreich, R., Sapoznikov, D., Kark, J. D., Hense, H. W., Eckardstein, A. von, Bolte, H.-D.   +6 more
core   +1 more source

Variability in heart rate recovery measurements over 1 year in healthy, middle-aged adults. [PDF]

, 2014
This study assessed the longer-term (12-month) variability in post-exercise heart rate recovery following a submaximal exercise test. Longitudinal data was analysed for 97 healthy middle-aged adults (74 male, 23 female) from 2 occasions, 12 months apart.
Carroll, S., Ingle, L., Ingle, L, Mellis, MG, Carroll, S, Mellis, M. G.   +5 more
core   +1 more source

Heart rate variability and target organ damage in hypertensive patients [PDF]

, 2012
Background: We evaluated the association between linear standard Heart Rate Variability (HRV) measures and vascular, renal and cardiac target organ damage (TOD).
Melillo Paolo, Izzo, Raffaele, Nicola De Luca, Pecchia L., Paolo Melillo, Leandro Pecchia, Pecchia Leandro, De Luca N, De Luca Nicola, Pecchia, Leandro, Raffaele Izzo, Melillo, Paolo, Izzo Raffaele, De Luca, Nicola, Izzo R   +14 more
core   +2 more sources

Analysis of heart rate variability

Bangabandhu Sheikh Mujib Medical University Journal, 2016
No abstract is ...
Noorzahan Begum
doaj   +1 more source