Arrhythmias without axis
... 5. Spontaneous generation of spurious impulses in almost any part of the heart ...
... 5. Spontaneous generation of spurious impulses in almost any part of the heart ...
ECG Challenge: Chest Pain and Palpitations in a Young Woman
... Based on this tracing, 2 possibilities can be excluded: •Atrial fibrillation, which--although a common tachydysrhythmia--is uniformly irregular. •Ventricular tachycardia, which characteristically features a widened QRS complex (greater than 0.12 second). Junctional tachycardias. These regular, narro ...
... Based on this tracing, 2 possibilities can be excluded: •Atrial fibrillation, which--although a common tachydysrhythmia--is uniformly irregular. •Ventricular tachycardia, which characteristically features a widened QRS complex (greater than 0.12 second). Junctional tachycardias. These regular, narro ...
Cardiac Conducting System AND Cardiac cycle
... septum, splits between L & R bundle branches b. Purkinje fibers – where the bundle branches diverge into smaller branches i. Cause ventricular contraction ii. Wave action from apex(bottom) to base(top) toward right ventricle first iii. Blood is pushed out aortic and pulmonary trunk ELECTROCARDIOGRAM ...
... septum, splits between L & R bundle branches b. Purkinje fibers – where the bundle branches diverge into smaller branches i. Cause ventricular contraction ii. Wave action from apex(bottom) to base(top) toward right ventricle first iii. Blood is pushed out aortic and pulmonary trunk ELECTROCARDIOGRAM ...
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... • All cells of the conducting fibers are autorhythmic • The cells of the SA node set the heart rate because their rhythm is fastest. • They set the pace. • If the SA node is damaged, the other pacemakers still function, the pace lowers. ...
... • All cells of the conducting fibers are autorhythmic • The cells of the SA node set the heart rate because their rhythm is fastest. • They set the pace. • If the SA node is damaged, the other pacemakers still function, the pace lowers. ...
519A ECG lvl 2 - WordPress.com
... blood from the lungs and pump it out to the body. The muscles of the left ventricle are about twice as big as those of the right because it has to generate enough force for the blood leaving the heart to reach all parts of the body. The heart also contains four valves. Two on the right and two on th ...
... blood from the lungs and pump it out to the body. The muscles of the left ventricle are about twice as big as those of the right because it has to generate enough force for the blood leaving the heart to reach all parts of the body. The heart also contains four valves. Two on the right and two on th ...
Appendix _: Glossary
... energy, direct current delivered asynchronously to the cardiac tissue. The defibrillation discharge will often restore the heart’s normal rhythm. Diagnostics – Data gathered by an ICD or pacemaker to evaluate patient rhythm status, verify system operation, or assure appropriate delivery of therapy o ...
... energy, direct current delivered asynchronously to the cardiac tissue. The defibrillation discharge will often restore the heart’s normal rhythm. Diagnostics – Data gathered by an ICD or pacemaker to evaluate patient rhythm status, verify system operation, or assure appropriate delivery of therapy o ...
Glossary of Cardiology Terms
... energy, direct current delivered asynchronously to the cardiac tissue. The defibrillation discharge will often restore the heart’s normal rhythm. Diagnostics – Data gathered by an ICD or pacemaker to evaluate patient rhythm status, verify system operation, or assure appropriate delivery of therapy o ...
... energy, direct current delivered asynchronously to the cardiac tissue. The defibrillation discharge will often restore the heart’s normal rhythm. Diagnostics – Data gathered by an ICD or pacemaker to evaluate patient rhythm status, verify system operation, or assure appropriate delivery of therapy o ...
Mechanic work of the heart.
... chambers, they refer to contraction and relaxation of the ventricles. It should be noted, however, that the atria also contract and relax. There is an atrial systole and diastole. Atrial contraction occurs toward the end of diastole, when the ventricles are relaxed; when the ventricles contract duri ...
... chambers, they refer to contraction and relaxation of the ventricles. It should be noted, however, that the atria also contract and relax. There is an atrial systole and diastole. Atrial contraction occurs toward the end of diastole, when the ventricles are relaxed; when the ventricles contract duri ...
Atrial Fibrillation
... • In regards to HF patient’s with Atrial Fibrillation • AF-CHF Trial – Assessed 1376 patients with a left ventricular EF <35%, HF symptoms, and a history of paroxysmal or persistent AF • Assigned to a strategy of either rhythm or rate control. • There was no significant difference in the primary out ...
... • In regards to HF patient’s with Atrial Fibrillation • AF-CHF Trial – Assessed 1376 patients with a left ventricular EF <35%, HF symptoms, and a history of paroxysmal or persistent AF • Assigned to a strategy of either rhythm or rate control. • There was no significant difference in the primary out ...
Arrhythmias - Ipswich-Year2-Med-PBL-Gp-2
... • A conduction delay within the AV node causing increasingly lengthened PR intervals until the node cannot transmit the signal to the ventricles (the Wenkebach phenominum) • Aetiology – Structural heart disease – Drugs: digoxin, Na, beta and Ca channel blockers, tricyclic ...
... • A conduction delay within the AV node causing increasingly lengthened PR intervals until the node cannot transmit the signal to the ventricles (the Wenkebach phenominum) • Aetiology – Structural heart disease – Drugs: digoxin, Na, beta and Ca channel blockers, tricyclic ...
Correspondence: Atrial Flutter with 1:1 response
... electrocardiogram, it indicates that the P wave is either buried within the QRS complex or T wave or the arrhythmia originates in the AV node or below and there is no associated retrograde conduction. In this situation, the rate of the ventricular response does help make a preliminary estimate of wh ...
... electrocardiogram, it indicates that the P wave is either buried within the QRS complex or T wave or the arrhythmia originates in the AV node or below and there is no associated retrograde conduction. In this situation, the rate of the ventricular response does help make a preliminary estimate of wh ...
Sinus Rhythms Normal (Regular) Sinus Rhythm Characteristics
... • SA node discharges fewer than 60 bpm • Follows normal pathway of conduction • Normal in some patients without cardiac compromise, ie athletes. • If the patient is symptomatic, it will be treated. • Symptoms include: • Chest pain, shortness of breath, syncope, CHF, • Hypotension, signs of shock, pu ...
... • SA node discharges fewer than 60 bpm • Follows normal pathway of conduction • Normal in some patients without cardiac compromise, ie athletes. • If the patient is symptomatic, it will be treated. • Symptoms include: • Chest pain, shortness of breath, syncope, CHF, • Hypotension, signs of shock, pu ...
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... INTRODUCTION: QT prolongation and hence susceptibility to VT is not unknown in bradycardia which is thought to be due to early after-depolarizations due to prolongation of action potential duration. The cellular mechanism responsible is depression of electrogenic Na+ pumping and more complete inacti ...
... INTRODUCTION: QT prolongation and hence susceptibility to VT is not unknown in bradycardia which is thought to be due to early after-depolarizations due to prolongation of action potential duration. The cellular mechanism responsible is depression of electrogenic Na+ pumping and more complete inacti ...
Size: 2 MB - diastolic dysfunction mgmc
... • Neuro humoral activation with sodium and water retention; • paroxysmal nocturnal dyspnoea ; and orthopnoea ...
... • Neuro humoral activation with sodium and water retention; • paroxysmal nocturnal dyspnoea ; and orthopnoea ...
Press Release Template
... About Atrial Fibrillation Atrial fibrillation (AF) is a heart condition where the upper chambers of the heart (atrium) beat too fast and with irregular rhythm (fibrillation). AF is the most common cardiac arrhythmia, currently affecting SH-215908-AC MAR2015 ...
... About Atrial Fibrillation Atrial fibrillation (AF) is a heart condition where the upper chambers of the heart (atrium) beat too fast and with irregular rhythm (fibrillation). AF is the most common cardiac arrhythmia, currently affecting SH-215908-AC MAR2015 ...
About Stroke Prevention in Atrial Fibrillation
... Atrial Fibrillation (AF) is the most common sustained cardiac arrhythmia AF occurs when the upper chambers of the heart (known as the atria) beat irregularly. Because the atria do not empty completely, blood does not flow properly, potentially allowing blood clots to form An ischemic stroke ca ...
... Atrial Fibrillation (AF) is the most common sustained cardiac arrhythmia AF occurs when the upper chambers of the heart (known as the atria) beat irregularly. Because the atria do not empty completely, blood does not flow properly, potentially allowing blood clots to form An ischemic stroke ca ...
Defibrillators - Buenaventura IEEE Engineering in Medicine and
... Steadies the heart beat under normal conditions Triggers shock pulses when irregular heart beats are detected ...
... Steadies the heart beat under normal conditions Triggers shock pulses when irregular heart beats are detected ...
Rhythm-control strategies were not better than
... toxicity and other adverse events. Pharmacologic or electrical cardioversion, surgery, catheter ablation, pacing, and internal cardioversion devices are alternatives for patients in whom rate cannot be controlled. For younger patients with a first episode of AF and those who initially choose a “cura ...
... toxicity and other adverse events. Pharmacologic or electrical cardioversion, surgery, catheter ablation, pacing, and internal cardioversion devices are alternatives for patients in whom rate cannot be controlled. For younger patients with a first episode of AF and those who initially choose a “cura ...
with Atrial Fibrillation (AFib)
... • Electrical cardioversion where a controlled shock to the chest restores the normal rhythm • Catheter ablation where radio frequency (heat) or cryo (freezing) energy is used to strategically destroy tissue and prevent the abnormal electrical impulses from spreading Some people may need a pacemake ...
... • Electrical cardioversion where a controlled shock to the chest restores the normal rhythm • Catheter ablation where radio frequency (heat) or cryo (freezing) energy is used to strategically destroy tissue and prevent the abnormal electrical impulses from spreading Some people may need a pacemake ...
Heart failure
... pulmonary oedema causes pleural effusion, which will usually start at the right base but be bilateral as it progresses. Look for anaemia which can exacerbate symptoms. It is important to look for the Jugular venous pulse in all patients with suspected heart failure. When the patient is at 30-45o the ...
... pulmonary oedema causes pleural effusion, which will usually start at the right base but be bilateral as it progresses. Look for anaemia which can exacerbate symptoms. It is important to look for the Jugular venous pulse in all patients with suspected heart failure. When the patient is at 30-45o the ...
Overview-Arrhythmias are caused by disturbances of the electrical
... Amiodarone: Effective in converting both fibrillation and flutter, controls HR, low Torsades risk, not a negative inotrophic agent, safe in critical illness ...
... Amiodarone: Effective in converting both fibrillation and flutter, controls HR, low Torsades risk, not a negative inotrophic agent, safe in critical illness ...
MY HEART SKIPS A BEAT - Cardiology at Concorde
... These stressors can produce unusually rapid or irregular heart beating. Palpitation is the name doctors give to a patient’s symptom of skipping or rapid heart beat. Persistent palpitation associated with dizziness, shortness of breath or chest pain definitely warrants evaluation. After taking your h ...
... These stressors can produce unusually rapid or irregular heart beating. Palpitation is the name doctors give to a patient’s symptom of skipping or rapid heart beat. Persistent palpitation associated with dizziness, shortness of breath or chest pain definitely warrants evaluation. After taking your h ...
Adenosine
... as a bolus dose (PSVT), effects are generally self-limiting (due to the short half-life of adenosine). However, when used as a continuous infusion (pharmacologic stress testing), effects may be more pronounced and persistent, corresponding to continued exposure. Use infusions with caution in patient ...
... as a bolus dose (PSVT), effects are generally self-limiting (due to the short half-life of adenosine). However, when used as a continuous infusion (pharmacologic stress testing), effects may be more pronounced and persistent, corresponding to continued exposure. Use infusions with caution in patient ...
ATRIAL FIBRILLATION DECISION AID
... If atrial fibrillation causes chest pain, shortness of breath, dizziness or congestive heart failure (water in the lungs), the arrhythmia may be dangerous and need to be corrected promptly. Usually however, symptoms are not that severe and the arrhythmia may be dealt with less acutely. The major lon ...
... If atrial fibrillation causes chest pain, shortness of breath, dizziness or congestive heart failure (water in the lungs), the arrhythmia may be dangerous and need to be corrected promptly. Usually however, symptoms are not that severe and the arrhythmia may be dealt with less acutely. The major lon ...
Atrial fibrillation
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease increases the risk of heart failure, dementia, and stroke.Hypertension and valvular heart disease are the most common alterable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In the developing world valvular heart disease often occurs as a result of rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other factors include excess alcohol intake, diabetes mellitus, and thyrotoxicosis. However, half of cases are not associated with one of these risks. A diagnosis is made by feeling the pulse and may be confirmed using an electrocardiogram (ECG). The typical ECG shows no P waves and an irregular ventricular rate.AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable. Ablation may prevent recurrence in some people. Depending on the risk of stroke either aspirin or anti-clotting medications such as warfarin or a novel oral anticoagulant may be recommended. While these medications reduce this risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005. In the developing world about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.14% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. The first known report of an irregular pulse was by John Baptist Senac in 1749. This was first documented by ECG in 1909 by Thomas Lewis.