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Giant tumor of the left ventricle presenting with sustained ventricular
Giant tumor of the left ventricle presenting with sustained ventricular

... segments; gated single-photon emission computed tomography with myocardial perfusion assessed with technetium sestamibi Abbreviations: LA – left atrium, LV – left ventricle, RA – right atrium, RV – right ventricle ...
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... The cardinal symptoms of ARVC are palpitations, dizziness, and syncope. In the contemporary registry of consecutive 130 ARVC patients two-third reported palpitations, one-third syncope, one-quarter atypical chest pain and 11% breathlessness. First manifestation of the disease could be symptomatic ve ...
Normal Hearts with Abnormal Beats Introduction
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... Department (ED) with palpitations and chest pain that awoke her from sleep. • She rated the chest pain as 10/10 in severity with radiation to her jaw. It was accompanied by dyspnea, diaphoresis, nausea, and weakness. • Her palpitations were constant lasting for 6 hours without any alleviating or agg ...
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Outline20 Cardio2 - Napa Valley College
Outline20 Cardio2 - Napa Valley College

... - Volume in ventricles is highest at end of diastole, lowest at end of systole. Wiggers cardiac output diagram (refer to textbook) correlates: - electrical events (ECG) - pressure changes in atria, ventricles, and aorta, volume and heart - volume changes in ventricles - heart sounds B. Cardiac Outpu ...
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...  ICDs administer electrical shocks or painless pacing therapy to stop ventricular fibrillation (VF) – a lethal condition in which the heart quivers chaotically and pumps little or no blood.  ICDs also stop ventricular tachycardia (VT), and other less problematic arrhythmias.  ICDs collect informa ...
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NSGC Cardiovascular Genetics Pocket Guide

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... Relate the surface ECG to the events of the cardiac cycle. Describe how the PR, QRS, and QT intervals may be prolonged by the action of drugs. Diagram modified from CV Physiology website: http://www.cvphysiology.com/Heart% 20Disease/HD002.htm ...
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...  They discovered that electric shocks could convert ventricular fibrillation to sinus rhythm in dogs.  The first case of a human life saved by defibrillation was reported by Beck in 1947 .  Defibrillation was invented in ...
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Facts About Sudden Cardiac Arrest

... Dealing With Sudden Cardiac Arrest – Treatment Options Cardiac arrest is reversible in most victims if it’s treated within minutes, but the only effective treatment is the delivery of an electrical shock. With the development of hospital coronary care units in the 1960s, it was found that electrica ...
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Automated quantitative assessment of left ventricular mass

... the images along the long axis of the left ventricle. A comparison with reoriented SPECT images along the long axis of the left ventricle was performed. Material and Methods: Tomographic axial slices were obtained using a standard direct Fourier transform technique with no additional pre or post pro ...
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... Hypertension Heart disease Heart failure* TEENney disease** ICD-10 code Yes No No No I10. Ventricular hypertrophy (VH) is thickening of the walls of a ventricle (lower chamber) of the heart. Although left ventricular hypertrophy (LVH) is more common, right. Free, official coding info for 2016/17 ICD ...
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... 1. Complete the pathway through the interventricluar septum and turn up the ventricular walls 2. Stimulate the bulk of ventricular depolarization 3. Purkinjie network is more extensive on the left side of the heart d. The time from initial SA impulse to the depolarization of the last of the ventricu ...
Physiology of cardiac rate and rhythm
Physiology of cardiac rate and rhythm

... repolarisation potentials of all myocardial cells  P-QRS-T pattern  P - atrial depolarisation  QRS - ventricular depolarisation  T - ventricular repolarisation R P T qs ...
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Ventricular fibrillation



Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.
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