The heart cell--electrophysiological aspects

Acta Medica Scandinavica. Supplementum
K E Andersson

Abstract

A short review is given of the ionic fluxes associated with the action potential in Purkinje fibres, and in sinus and AV-node, and of the influence of variations in the extracellular concentrations of K+, Na+, Ca2+ and Mg2+ on basic electrophysiological parameters. Variations in serum potassium concentration often plays an important role in the genesis of arrhythmias by changing several electrophysiological parameters, whereas only extreme variations in the serum calcium level produce electrophysiological effects of clinical importance. Hypo- and hypernatremia within the ranges observed clinically most probably do not produce significant electrophysiological changes. Variations in extracellular magnesium concentration seem to have effects on electrophysiological parameters particularly when they occur simultaneously with changes in the concentrations of calcium and potassium.

References

May 1, 1979·American Heart Journal·M R SridharanN C Flowers
May 1, 1979·Journal of Molecular and Cellular Cardiology·R E KatholiT N James
Sep 1, 1975·Journal of Molecular and Cellular Cardiology·J M ChesnaisJ M Vassas
Jun 1, 1975·The American Journal of Medicine·L T IseriA R Bures
Mar 1, 1977·Progress in Cardiovascular Diseases·H A Fozzard
May 1, 1976·The Journal of General Physiology·R S Kass, R W Tsien
Jun 1, 1974·The Tohoku Journal of Experimental Medicine·K HashimotoS Chiba
Apr 1, 1974·Journal of Clinical Pharmacology·K Greenspan, M V Elizari
Jan 1, 1972·Cardiovascular Research·Y Watanabe, L S Dreifus
Jun 1, 1967·American Heart Journal·B Surawicz
Jan 1, 1970·The American Journal of Physiology·K HashimotoS Chiba
Mar 1, 1970·The Journal of Physiology·G W Beeler, H Reuter
Jan 1, 1967·Circulation Research·J V Temte, L D Davis
Oct 1, 1965·Circulation Research·M Vassalle, B F Hoffman
Dec 1, 1966·The American Journal of Physiology·M KleinfeldD Aguillardo
May 1, 1980·Journal of Molecular and Cellular Cardiology·A J MackaayL N Bouman
Feb 27, 1953·The Journal of Physiology·A S V BURGEN, K G TERROUX
Aug 1, 1956·The American Journal of Physiology·B F HOFFMAN, E E SUCKLING
Dec 1, 1960·The American Journal of Physiology·W de MELLO, B F HOFFMAN
Aug 1, 1963·The American Journal of Physiology·A PAESDECARVALHO, W B LANGAN
Aug 1, 1964·The American Journal of Physiology·M VASSALLEB F HOFFMAN
Sep 1, 1964·The American Journal of Physiology·E SEIFENM H ALPER
Apr 1, 1965·The American Journal of Physiology·M VASSALLE
May 1, 1965·Circulation Research·T SANO, S YAMAGISHI

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.