APPROACH TO PEDIATRIC ECG
... Is there a P wave before each QRS complex? Is there a QRS complex after every P wave? Are the P waves upright in leads I, II, III? Do all P waves should look the same? Are all P wave axis normal (0 to +90)? Are the PR intervals constant? Is the rhythm fast or slow? (refer to Table 1 va ...
... Is there a P wave before each QRS complex? Is there a QRS complex after every P wave? Are the P waves upright in leads I, II, III? Do all P waves should look the same? Are all P wave axis normal (0 to +90)? Are the PR intervals constant? Is the rhythm fast or slow? (refer to Table 1 va ...
And the beat goes on... the beat goes on: organization and quasi
... IK,ATP induced reduction of refractoriness, enabled more ‘elbow room’ for multiple rotors to coexist and mutually synchronize at a high frequency and with a high degree of organization. Another interesting observation reported by Quintanilla et al.8 in the setting of IKATP channel opening is that ro ...
... IK,ATP induced reduction of refractoriness, enabled more ‘elbow room’ for multiple rotors to coexist and mutually synchronize at a high frequency and with a high degree of organization. Another interesting observation reported by Quintanilla et al.8 in the setting of IKATP channel opening is that ro ...
The Pacmaker document
... A cardiac Pacemaker is an implanted device that assists cardiac functions when the underlying pathologies make the intrinsic heartbeats low. The Pacemaker runs in either a programming mode or in one of operational modes. During programming, the programmer specifies the type of the operation mode in ...
... A cardiac Pacemaker is an implanted device that assists cardiac functions when the underlying pathologies make the intrinsic heartbeats low. The Pacemaker runs in either a programming mode or in one of operational modes. During programming, the programmer specifies the type of the operation mode in ...
Catheter Ablation - Heart Rhythm Society
... Parkinson White (WPW) Syndrome • Atrial Tachycardia ...
... Parkinson White (WPW) Syndrome • Atrial Tachycardia ...
Cardiac Physiology and Chronobiology
... Atrioventricular (AV) Node located between the chambers The AV Node slows the impulse down and passes it through to the AV Bundle (or Bundle of His) Bundle of His divides itself into two tracts through the ventricles and the ...
... Atrioventricular (AV) Node located between the chambers The AV Node slows the impulse down and passes it through to the AV Bundle (or Bundle of His) Bundle of His divides itself into two tracts through the ventricles and the ...
L4-ECG
... the ECG, and the third limb is connected to the positive When the positive terminal is on: The right arm (aVR) The left arm (aVL) The left leg (aVF) All are similar to the standard limb leads aVR lead is inverted ...
... the ECG, and the third limb is connected to the positive When the positive terminal is on: The right arm (aVR) The left arm (aVL) The left leg (aVF) All are similar to the standard limb leads aVR lead is inverted ...
CHD - ASD
... valvular heart disease, hypertension) Those with device closure need follow-up in specialized centers with serial ECGs and echocardiograms to determine the late outcomes of these new techniques Endocarditis prophylaxis and aspirin are recommended for ...
... valvular heart disease, hypertension) Those with device closure need follow-up in specialized centers with serial ECGs and echocardiograms to determine the late outcomes of these new techniques Endocarditis prophylaxis and aspirin are recommended for ...
BASIC CARDIAC ARRHYTHMIAS
... Atrial rate is faster than the ventricular rate (you have more Ps than QRSs) The P-R intervals are constant. This example is regular due to it dropping every other beat (2:1 conduction ratio). 2nd degree Type II is more often an irregular rhythm. ...
... Atrial rate is faster than the ventricular rate (you have more Ps than QRSs) The P-R intervals are constant. This example is regular due to it dropping every other beat (2:1 conduction ratio). 2nd degree Type II is more often an irregular rhythm. ...
Surgical treatment of cor triatriatum in a geriatric patient: A rare
... Cor triatriatum most commonly showes itself in infancy or early childhood with respiratory symptoms caused by functional pulmonary vein obstruction, but in some cases it doesn’t appear until the later.2 The most common symptoms present in adults are similar to those of mitral stenosis; dyspnea, orth ...
... Cor triatriatum most commonly showes itself in infancy or early childhood with respiratory symptoms caused by functional pulmonary vein obstruction, but in some cases it doesn’t appear until the later.2 The most common symptoms present in adults are similar to those of mitral stenosis; dyspnea, orth ...
TTR Amyloid: Cardiac Symptoms and Issues Introduction Heart`s
... • Val30Met – cardiac problems tend to be less severe than neuropathy, but electrical heart problems (“heart block”) often occur despite transplant. ...
... • Val30Met – cardiac problems tend to be less severe than neuropathy, but electrical heart problems (“heart block”) often occur despite transplant. ...
Endothelin system and atrial fibrillation post
... has been implicated in atrial structural remodeling, in cardiomyocyte hypertrophy [15], and in the genesis and perpetuation of AF [15, 16]. In right atrial trabeculae isolated from patients with cardiac disease, ET-1 has been shown to induce arrhythmic contractions [17], but the pathophysiologic lin ...
... has been implicated in atrial structural remodeling, in cardiomyocyte hypertrophy [15], and in the genesis and perpetuation of AF [15, 16]. In right atrial trabeculae isolated from patients with cardiac disease, ET-1 has been shown to induce arrhythmic contractions [17], but the pathophysiologic lin ...
Spiral Waves and the Heart: Spatiotemporal
... either an increased or decreased heart rate. In this talk tachyarrhythmias, those with an increased and often irregular heart rate, will be the focus. Atrial fibrillation is the uncoordinated contraction the upper chambers of the heart and can be dangerous because blood is no longer expelled properl ...
... either an increased or decreased heart rate. In this talk tachyarrhythmias, those with an increased and often irregular heart rate, will be the focus. Atrial fibrillation is the uncoordinated contraction the upper chambers of the heart and can be dangerous because blood is no longer expelled properl ...
Worksheet 1 Cardiac Cycle
... Increased contractility can result from an increase the activity of which division of the autonomic nervous system? i. This increased nervous activity increases the availability of which ion? ...
... Increased contractility can result from an increase the activity of which division of the autonomic nervous system? i. This increased nervous activity increases the availability of which ion? ...
Modulation of the Ectopic Focus Introduces Various Forms
... atrial fibrillation patients. For example, the famous “rule of bigeminy” concerning the role of the preceding R-R intervals immediately before the bigeminy was found out by the analysis mainly in atrial fibrillation in 1955. A 55y.o. man with dilated cardiomyopathy, who had atrial fibrillation and V ...
... atrial fibrillation patients. For example, the famous “rule of bigeminy” concerning the role of the preceding R-R intervals immediately before the bigeminy was found out by the analysis mainly in atrial fibrillation in 1955. A 55y.o. man with dilated cardiomyopathy, who had atrial fibrillation and V ...
ARRHYTHMIA Background Of all the cardiac complications that can
... and atrial tachycardias are much more common in women of childbearing age compared to ventricular tachycardias. Bradyarrhythmias will not be discussed in this section. Arrhythmias may present for the first time during pregnancy or pregnancy can trigger arrhythmias in women with a preexisting history ...
... and atrial tachycardias are much more common in women of childbearing age compared to ventricular tachycardias. Bradyarrhythmias will not be discussed in this section. Arrhythmias may present for the first time during pregnancy or pregnancy can trigger arrhythmias in women with a preexisting history ...
this PDF file - Pacific Group of e
... Effort intolerance is the most common initial presenting symptom in children. Atrial fibrillation or flutter is an age-related reflection of atrial dilation and stretch that seldom occurs at <40 years of age3.In ECG the rhythm may be sinus, atrial fibrillation, or atrial flutter.First-degree heart b ...
... Effort intolerance is the most common initial presenting symptom in children. Atrial fibrillation or flutter is an age-related reflection of atrial dilation and stretch that seldom occurs at <40 years of age3.In ECG the rhythm may be sinus, atrial fibrillation, or atrial flutter.First-degree heart b ...
Occasional dropped ventricular pacing in apatient with no
... An 86-year-old white male with complete heart block and no underlying ventricular escape rhythm was implanted with an Advisa MRIw dual-chamber pacemaker. Telemetry recordings revealed occasional, isolated P waves without pacing spikes or paced QRS complexes. Decreasing the right ventricle (RV) chann ...
... An 86-year-old white male with complete heart block and no underlying ventricular escape rhythm was implanted with an Advisa MRIw dual-chamber pacemaker. Telemetry recordings revealed occasional, isolated P waves without pacing spikes or paced QRS complexes. Decreasing the right ventricle (RV) chann ...
AV node - ISpatula
... The self-excitable myocytes that "act like nerves" have the 2 important roles of forming the conduction system of the heart and acting as pacemakers within that system. Because it has the fastest rate of depolarization, the normal pacemaker of the heart is the sinoatrial (SA) node, located in the ...
... The self-excitable myocytes that "act like nerves" have the 2 important roles of forming the conduction system of the heart and acting as pacemakers within that system. Because it has the fastest rate of depolarization, the normal pacemaker of the heart is the sinoatrial (SA) node, located in the ...
Pacemakers and AICDs: Interrogation Reports and Interpretation of
... EP consultation is needed to reprogram the device or revise the lead. Occasionally, pacing spikes fall immediately after a PVC and fail to capture the myocardium. However, this form of failure to capture is physiologic, as the pacing stimulus falls on the refractory period of the ventricle when it i ...
... EP consultation is needed to reprogram the device or revise the lead. Occasionally, pacing spikes fall immediately after a PVC and fail to capture the myocardium. However, this form of failure to capture is physiologic, as the pacing stimulus falls on the refractory period of the ventricle when it i ...
Stroke Prevention in Atrial Fibrillation
... Palpitations +/- Chest pain Dyspnoea +/- Dizziness Reduced exercise tolerance (often significant) Panic attacks/Agoraphobia/depression If Paroxysmal: As above, but may be more severe (less well tolerated) Often preceded by exertion, ‘thump’ in the chest, fatigue, alcohol, coffee and othe ...
... Palpitations +/- Chest pain Dyspnoea +/- Dizziness Reduced exercise tolerance (often significant) Panic attacks/Agoraphobia/depression If Paroxysmal: As above, but may be more severe (less well tolerated) Often preceded by exertion, ‘thump’ in the chest, fatigue, alcohol, coffee and othe ...
Intrinsic Conduction System
... atria contract. d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Pa ...
... atria contract. d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Pa ...
Intrinsic_Conduction_Sys
... atria contract. d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Pa ...
... atria contract. d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. e. Electrically connects the atria and the ventricles, connecting the AV node to the Bundle Branches. f. Conveys the action potential down the interventricular septum. 6. (Pa ...
Back to the Basics: EKG Interpretation
... Occurs when occasional impulses from the SA node fail to conduct to the ventricles. • Rhythm: Irregular (because of dropped beats) • PR: constant until a block of the AV conduction system, resulting in a P wave not followed by a QRS. • QRS: 0.10 sec Ex: Imagine a line of people passing a doorway at ...
... Occurs when occasional impulses from the SA node fail to conduct to the ventricles. • Rhythm: Irregular (because of dropped beats) • PR: constant until a block of the AV conduction system, resulting in a P wave not followed by a QRS. • QRS: 0.10 sec Ex: Imagine a line of people passing a doorway at ...
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.