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Saturday, October 10, 2020 | History

2 edition of Effect of refractoriness on defibrillation energy requirements. found in the catalog.

Effect of refractoriness on defibrillation energy requirements.

Michele Jacqueline Wang

Effect of refractoriness on defibrillation energy requirements.

by Michele Jacqueline Wang

  • 185 Want to read
  • 19 Currently reading

Published .
Written in English


The Physical Object
Pagination159 leaves
Number of Pages159
ID Numbers
Open LibraryOL18104601M

  Treatment • For acute paroxysm – Cardio version – It requires a lower energy shock. J is commonly enough to revert to sinus rhythm • Recurrent paroxysms may be . refractoriness sinus rhythm initiation endocardial bypass tracts atrial activation cardiac ecg antegrade sinus node pathways Post a .

refractoriness and conduction. Circulation 74(1); , Feld GK, Venkatesh N, Singh BN: Effects of N-acetylprocainamide and recainami in experimental canine atrial flutter: Significance of the changes in refractoriness . Preface I developed the format of this book while teaching a rc\'iew course in pharmacology to medical students who were having difficulty with the standard course.

An implantable device and method for treating cardiac arrhythmias in a patient's heart are disclosed. A source of antitachycardia pacing therapy and an electrode system including at Cited by: 9 Magnesium Deficiency and Cardiac Dysrhythmia. Electrocardiographic Changes of Experimental Magnesium Deficiency. In the early subacute magnesium-deficiency study of .


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Effect of refractoriness on defibrillation energy requirements by Michele Jacqueline Wang Download PDF EPUB FB2

Introduction: The effect of oral amiodarone therapy on defibrillation energy requirements in patients with an implantable defibrillator has not been established. Values for defibrillation energy requirements were measured at baseline (normothermia, degrees C) and during treatment with total body hypothermia (30 degrees C) or no.

A potential mechanism for the d-sotalol effect on energy requirements for atrial defibrillation may be related to the drug-induced prolongation of atrial re- fractoriness. Wavelets of reentry Cited by: External electrical cardioversion (EEC) was first performed in the s.

1 This early experience demonstrated that electrical energy externally delivered to the thorax could stimulate the heart.

Bretylium has been reported in humans to treat ventricular fibrillation. Bretylium is a quaternary ammonium compound that prolongs cardiac action potentials, most likely through inhibition of potassium channels.

In addition, it increases the refractoriness. Experimental data and early clinical studies indicate that antiarrhythmic drugs may alter defibrillation energy requirements, usually measured as the DFT.

45 Routine ICD testing Author: Jaber Abboud, Joachim R Ehrlich. The waveform shape also has a direct bearing on the lifetime of the battery used in an ICD since battery and capacitor size are the main determinants in the development of small, efficient Cited by: Dorian P, Fain ES, Davy JM, Winkle RA () Effect of quinidine and bretylium on defibrillation energy requirements.

Am Heart J (1): 19–25 PubMed CrossRef Google Scholar Cited by: 1. The rate of capacitor discharge is described by the equation Q = Q 0 e −t/CR.Q represents the charge on the capacitor at a given time, Q 0 is the charge at time zero, t is time and e is the Cited by:   Introduction.

External electrical cardioversion (EEC) was first performed in the s. 1 This early experience demonstrated that electrical energy externally delivered to the. Modern ICDs use transvenous lead systems for sensing, pacing, and biphasic shock delivery. Epicardial leads are still used in infants and small children.

Use of biphasic compared to. Core tip: Cardiac arrest remains a leading cause of death worldwide, despite tremendous improvements in emergency medical care and increased public delivery of bystander Cited by: In one of the three animals, induced fibrillation was reverted to tachycardia (Figure 2).Interestingly, in one rat, piperazine reversed the BaCl2-induced fibrillation to sinus rhythm Author: Ghasi S, Mbah Au, Nze Pu, Nwobodo E, Ogbonna Ao, Onuaguluchi G.

Europe PMC is an archive of life sciences journal literature. External electrical cardioversion (EEC) was first performed in the s. 1 This early experience demonstrated that electrical.

The most important is a low energy requirement thanks to proximity of the oesophagus to the left atrium which warrants a lower energy dispersion and a lower defibrillation impedance.

For this Author: Federico Guerra, Michela Brambatti, Maria Vittoria Matassini, Alessandro Capucci. Electrical cardioversion and defibrillation procedures both use a device (eg, cardioverter-defibrillator) to deliver an electrical shock to the heart to treat abnormal heart rhythms, but they.

An Electrophysiologic Approach to the Surgical Treatment of the Wolff-Parkinson-White Syndrome Report of Two Cases Utilizing Catheter Recording and Epicardial Mapping Techniques. MECHANISMS OF ATRIAL DEFIBRILLATION. There are only limited data that examine the interaction between an electrical shock and atrial tissue.

4 w2 w3 Research into. The optimal energy for defibrillation is that which achieves defibrillation whilst causing the minimum of myocardial damage. Selection of an appropriate energy level also reduces.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for Practice Cited by: Murray KT, Borganelli M, Crawford DM, Stewart JR, Hammon JW: Effects of procainamide and lidocaine on defibrillation energy Requirements in patients receiving implantable cardioverter .Permanent cardiac pacing remains the only effective treatment for chronic, symptomatic bradycardia.

In recent years, the role of implantable pacing devices has expanded Cited by: