CT in the Management of Cardiac Arrhythmias

2017 ◽  
pp. 271-301
Author(s):  
Joel Wilson ◽  
Farhood Saremi ◽  
Jagat Narula ◽  
Sanjiv M. Narayan
Keyword(s):  
Cardiac Arrhythmias

Sleep and cardiac arrhythmias

1972 ◽  
Vol 130 (5) ◽  
pp. 751-753 ◽  
Author(s):  
R. Smith
Keyword(s):  
Cardiac Arrhythmias

Cardiac arrhythmias related to psychiatric medication

2017 ◽  
Vol 36 (09) ◽  
pp. 747-750
Author(s):  
R. W. Freudenmann ◽  
C. Schönfeldt-Lecuona ◽  
B. J. Connemann ◽  
M. Gahr ◽  
M. Elsayed
Keyword(s):  
Cardiac Arrhythmias ◽  
Torsade De Pointes ◽  
General Medicine ◽  
Fold Increase ◽  
Cardiac Risk ◽  
Psychiatric Medication ◽  
Cardiac Side Effects ◽  
Torsade De Pointes Tachycardia ◽  
Multiple Drugs ◽  
Available Information

SummaryThis narrative review summarizes current available information about cardiac arrhythmias (QT prolongation, Torsade de pointes Tachycardia [TdP], sudden cardiac death) associated with psychiatric medication. Among the most commonly used antipsychotics, amisulpride and ziprasidone are most frequently associated with TdP. Treatment with some antidepressants (SSRIs, tricyclic antidepressants) is associated with a 5- to 6-fold increase in the incidence of out-of-hospital cardiac arrest. Lithium is associated with bradycardia, T-wave changes and AV-block; anxiolytics of the benzodiazepine group do usually not have cardiac side effects. The combination of multiple drugs (including medications from general medicine) that prolong the QT interval has a particularly high cardiac risk.

Entrainment and Annihilation of Reentrant Excitation in a Periodically Stimulated Ring of Excitable Media

1997 ◽  
Vol 36 (04/05) ◽  
pp. 290-293
Author(s):  
L. Glass ◽  
T. Nomura
Keyword(s):  
Cardiac Arrhythmias ◽  
Initial Phase ◽  
Human Heart ◽  
Periodic Wave ◽  
Excitable Media ◽  
One Dimensional ◽  
Clinical Observations ◽  
Periodic Stimulation ◽  
Reentrant Excitation ◽  
Stimulation Of

Abstract:Excitable media, such as nerve, heart and the Belousov-Zhabo- tinsky reaction, exhibit a large excursion from equilibrium in response to a small but finite perturbation. Assuming a one-dimensional ring geometry of sufficient length, excitable media support a periodic wave of circulation. As in the periodic stimulation of oscillations in ordinary differential equations, the effects of periodic stimuli of the periodically circulating wave can be described by a one-dimensional Poincaré map. Depending on the period and intensity of the stimulus as well as its initial phase, either entrainment or termination of the original circulating wave is observed. These phenomena are directly related to clinical observations concerning periodic stimulation of a class of cardiac arrhythmias caused by reentrant wave propagation in the human heart.

Does valproic acid cause cardiac arrhythmias, in particular QT-prolongations, as possible SUDEP risk factor?

2006 ◽  
Vol 37 (06) ◽  
Author(s):  
A Fues ◽  
S Vlaho ◽  
M Baz Bartels ◽  
V Boda ◽  
S Dittrich ◽  
...  
Keyword(s):  
Valproic Acid ◽  
Risk Factor ◽  
Cardiac Arrhythmias

EXPERIMENTAL AND CLINICAL STUDIES OF AUTOIMMUNE MECHANISMS IN CARDIAC ARRHYTHMIAS

2019 ◽  
Vol 98 (6) ◽  
pp. 181-187
Author(s):  
K.B. Alekseeva ◽  
◽  
T.K. Kruchina ◽  
G.A. Novik ◽  
◽  
...  
Keyword(s):  
Cardiac Arrhythmias ◽  
Clinical Studies

Blockade of Renin Angiotensin System Ameliorates the Cardiac Arrhythmias and Sympathetic Neural Remodeling in Hearts of Type 2 DM Rat Model

2020 ◽  
Vol 20 (3) ◽  
pp. 464-478 ◽  
Author(s):  
Yomna M. Yehya ◽  
Abdelaziz M. Hussein ◽  
Khaled Ezam ◽  
Elsayed A. Eid ◽  
Eman M. Ibrahim ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cardiac Arrhythmias ◽  
Sympathetic Nerve ◽  
Renin Angiotensin System ◽  
Diabetic Rats ◽  
Angiotensin System ◽  
Type 2 Dm ◽  
Type 2 Diabetic ◽  
Diabetes Induction

Objectives:: The present study was designed to investigate the effects of renin angiotensin system (RAS) blockade on cardiac arrhythmias and sympathetic nerve remodelling in heart tissues of type 2 diabetic rats. Methods:: Thirty-two male Sprague Dawley rats were randomly allocated into 4 equal groups; a) normal control group: normal rats, b) DM group; after type 2 diabetes induction, rats received 2ml oral saline daily for 4 weeks, c) DM+ ACEi: after type 2 diabetes induction, rats were treated with enalapril (10 mg/kg, orally for 4 weeks) and d) DM+ ARBs: after type 2 diabetes induction, rats were treated with losartan (30 mg/kg, orally for 4 weeks). Results:: In type 2 diabetic rats, the results demonstrated significant prolongation in Q-T interval and elevation of blood sugar, HOMA-IR index, TC, TGs, LDL, serum CK-MB, myocardial damage, myocardial MDA, myocardial norepinephrine and tyrosine hydroxylase (TH) density with significant reduction in serum HDL, serum insulin and myocardial GSH and CAT. On the other hand, blockade of RAS at the level of either ACE by enalapril or angiotensin (Ag) receptors by losartan resulted in significant improvement in ECG parameters (Q-T), cardiac enzymes (CK-MB), cardiac morphology, myocardial oxidative stress (low MDA, high CAT and GSH) and myocardial TH density. Conclusions:: RAS plays a role in the cardiac sympathetic nerve sprouting and cardiac arrhythmias induced by type 2 DM and its blockade might have a cardioprotective effect via attenuation of sympathetic nerve fibres remodelling, myocardial norepinephrine contents and oxidative stress.

Cardiac Arrhythmias During Spirometric Examinations

CHEST Journal ◽  
1994 ◽  
Vol 106 (5) ◽  
pp. 1637 ◽  
Author(s):  
Dimitrios Kamaroulias
Keyword(s):  
Cardiac Arrhythmias
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