The heart and potassium: A banana republic

@article{Khan2013TheHA,
  title={The heart and potassium: A banana republic},
  author={Ehsan Khan and Christine M Spiers and Maria Khan},
  journal={Acute Cardiac Care},
  year={2013},
  volume={15},
  pages={17 - 24}
}
The importance of potassium in maintaining stable cardiac function is a clinically understood phenomenon. Physiologically the importance of potassium in cardiac function is described by the large number of different kinds of potassium ions channels found in the heart compared to channels and membrane transport mechanisms for other ions such as sodium and calcium. Potassium is important in physiological homeostatic control of cardiac function, but is also of relevance to the diseased state, as… 
7 Citations
Prevalence of Hypokalaemia in Acute Myocardial Infarction Patients
TLDR
AMI patients have significantly lower potassium levels in comparison to healthy population, hypokalaemia affecting a significant AMI population.
Medications Used for the Cardiovascular System
TLDR
The four (IV) main classes of drugs used for the treatment and management of arrhythmias and the lipid lowering class of drug, statins, are discussed.
Lidocaine-Associated Cardiac Events in Newborns with Seizures: Incidence, Symptoms and Contributing Factors
TLDR
Lidocaine-associated cardiac events were rare in this cohort, especially since the introduction of new reduced-dose regimens, indicating that lidocaine is safe to use as an antiepileptic drug in full-term and preterm infants.
Plasma potassium ranges associated with mortality across stages of chronic kidney disease: the Stockholm CREAtinine Measurements (SCREAM) project
  • Alessandro Gasparini, M. Evans, J. Carrero
  • Medicine
    Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
  • 2018
TLDR
The view that hyperkalaemia is better tolerated with worse CKD, it challenges the current use of a single optimal K+ range for all patients and modifies K+ distribution and the ranges that predict mortality in the community.
Questionnaire to Identify FOOD BELIEVES: Evidence of Validity and Reliability
Objectives: to develop a health measurement instrument, in which food beliefs represent the construct, and to assess evidence of its reliability and validity. Methodology: Participants: Facebook, You

References

SHOWING 1-10 OF 38 REFERENCES
Arrhythmogenic ion-channel remodeling in the heart: heart failure, myocardial infarction, and atrial fibrillation.
TLDR
The changes in ion channel and transporter properties associated with three important clinical and experimental paradigms: congestive heart failure, myocardial infarction, and atrial fibrillation are reviewed and important opportunities for improved therapeutic approaches are highlighted.
The KCNQ1 potassium channel: from gene to physiological function.
TLDR
The current knowledge about the KCNQ1 channel is reviewed with a major focus on interacting proteins and physiological functions, capable of modulating the properties of the channel complexes.
Role of potassium currents in cardiac arrhythmias.
  • U. Ravens, E. Cerbai
  • Biology, Medicine
    Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology
  • 2008
TLDR
The pro-arrhythmic consequences of malfunctioning K(+) channels in ventricular and atrial tissue are discussed in the light of three pathophysiologically relevant aspects: genetic background, drug action, and disease-induced remodelling.
Recognising signs of danger: ECG changes resulting from an abnormal serum potassium concentration
TLDR
Three cases that highlight the ECG changes resulting from an abnormal serum potassium concentration are presented and the treatment options to reduce the risk of life threatening arrhythmias occurring are briefly looked at.
Potassium-channel mutations and cardiac arrhythmias—diagnosis and therapy
The coordinated generation and propagation of action potentials within cardiomyocytes creates the intrinsic electrical stimuli that are responsible for maintaining the electromechanical pump function
Relationship Between Serum Potassium Concentration and Risk of Recurrent Ventricular Tachycardia or Ventricular Fibrillation
TLDR
The purpose of this study was to determine the risk of a recurrent sustained ventricular arrhythmia in patients with a low serum potassium concentration at the time of an initial episode of a sustainedventricular arrHythmia.
Heart Physiology: From Cell to Circulation
TLDR
A Basic Cardiovascular Physiology Introductory cardiovascular concepts Control of the circulation Heart cells and organelles, and Pathophysiology Lack of blood flow: Ischemia and angina Acute coronary syndromes.
Molecular basis of funny current (If) in normal and failing human heart.
...
1
2
3
4
...