Changes of Cardiac Output Caused by Aging: An Impedance Cardiographic Study

Luisada, A. A.; Bhat, P. K.; Knighten, V.
February 1980
Angiology;Feb1980, Vol. 31 Issue 2, p75
Academic Journal
The various parameters of cardiac output were studied in 132 healthy subjects from 20 to 89 years of age by impedance cardiography. This noninvasive method supplied data that were similar to those found by others by dye dilution methods. All parameters of cardiac output decrease with age. However, we found a difference between the two sexes in the rate of decrease of the cardiac index: women had a more marked drop at an earlier age and then a steady course, while men had a progressive decrease from the youngest to the oldest group.


Related Articles

  • Searching for markers of the right heart-pulmonary circulation unit function: a continuing challenge. Bossone, Eduardo; Rudski, Lawrence G.; Grünig, Ekkehard // European Heart Journal - Cardiovascular Imaging;12/1/2014, Vol. 15 Issue 12, p1420 

    The authors reflect on the quest for markers of the right heart-pulmonary circulation unit (RH-PCU) function. Topics discussed include the use of two-dimensional (2D) speckle tracking to measure right ventricular (RV) systolic function, manifestation of pulmonary vascular diseases, the...

  • Hemodynamic support in septic shock. Vincent, Jean-Louis // Intensive Care Medicine;Feb2001 Supplement 1, Vol. 27, pS80 

    Discusses hemodynamic therapy in shock. Restoration of effective tissue perfusion; Normalization of cellular metabolism; Result of a decrease in cardiac output.

  • EFFECTS OF HYPERKALAEMIA UPON THE GENERAL AND CORONARY HAEMODYNAMICS OF THE DOG. Maxwell, G. M. // Australian Journal of Experimental Biology & Medical Science;Oct1965, Vol. 43 Issue 5, p657 

    This article focuses on the effects of hyperkalaemia on the coronary haemodynamics of the dog. This study was done because work in the "isolated" heart (fibrillating or beating), or in animals subjected to extensive surgical procedures, suggested that hyperkalaemia might effect coronary blood...

  • Circulatory “Efficacy” during progressive aerobic exercise in children: insights from the Q: VO2 relationship. Rowland, Thomas // European Journal of Applied Physiology;Sep2007, Vol. 101 Issue 1, p61 

    The relationship between circulatory flow ( Q) and oxygen uptake ( $${V}{\text O}_{2} $$ ) may provide insights into performance of peripheral mechanisms which govern blood flow during exercise (circulatory efficacy). This study evaluated the response of Q relative to $${V}{\text O}_{2} $$...

  • How changes in venous capacitance modulate cardiac output. Tyberg, John V. // Pflugers Archiv European Journal of Physiology;Oct2002, Vol. 445 Issue 1, p10 

    Pressure–volume relations, which most directly represent changes in venous capacitance, are useful tools in understanding how changing venous tone modulates cardiac output under both normal physiologic conditions and in disease states. A conceptual model is presented, followed by a...

  • Central circulatory and peripheral O2 extraction changes as interactive facilitators of pulmonary O2 uptake during a repeated high-intensity exercise protocol in humans. Fukuba, Yoshiyuki; Endo, Masako Yamaoka; Ohe, Yukie; Hirotoshi, Yuiko; Kitano, Asami; Shiragiku, Chiaki; Miura, Akira; Fukuda, Osamu; Ueoka, Hatsumi; Miyachi, Motohiko // European Journal of Applied Physiology;Mar2007, Vol. 99 Issue 4, p361 

    It has frequently been demonstrated that prior high-intensity exercise facilitates pulmonary oxygen uptake $$({\dot{V}\hbox{O}_2})$$ response at the onset of subsequent identical exercise. To clarify the roles of central O2 delivery and/or peripheral O2 extraction in determining this phenomenon,...

  • Reliability of peakand maximal cardiac output assessed using thoracic bioimpedance in children. Welsman, Joanne; Bywater, Katie; Farr, Colin; Welford, Deborah; Armstrong, Neil // European Journal of Applied Physiology;May2005, Vol. 94 Issue 3, p228 

    The purpose of this study was to evaluate the reliability of a thoracic electrical bioimpedance based device (PhysioFlow) for the determination of cardiac output and stroke volume during exercise at peak oxygen uptake (peakin children. The reliability of peakis also reported. Eleven boys and...

  • Understanding hypovolaemia. Perner, Anders; Backer, Daniel // Intensive Care Medicine;Apr2014, Vol. 40 Issue 4, p613 

    The article offers information on hypovoleamia which is defined as blood volume decrease resulting from loss of blood, plasma and/or plasma water. It explains the complexity of the haemodynamic impact of fluid loss. It discusses the determination of the circulatory effects of fluid resuscitation...

  • Journal of Clinical Monitoring and Computing 2015 end of year summary: cardiovascular and hemodynamic monitoring. Bendjelid, Karim; Rex, Steffen; Scheeren, Thomas; Saugel, Bernd // Journal of Clinical Monitoring & Computing;Apr2016, Vol. 30 Issue 2, p129 

    Hemodynamic monitoring is essential in critically ill patients. In this regard, the Journal of Clinical Monitoring and Computing (JCMC) has become an ideal platform for publishing cardiovascular and hemodynamic monitoring-related research, as reflected by an increasing number of articles related...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics