Arrhythmias 2
... identifiable reversible cause (e.g. acute myocardial infarction, severe metabolic disturbance), at high risk of sudden death. Implantable cardioverter-defibrillators (ICDs) are first-line therapy ...
... identifiable reversible cause (e.g. acute myocardial infarction, severe metabolic disturbance), at high risk of sudden death. Implantable cardioverter-defibrillators (ICDs) are first-line therapy ...
Overview: Any irregular heart beat is called an arrhythmia. Some
... Any irregular heart beat is called an arrhythmia . Some types of arrhythmia are quite common - they show up in about 1% of EKGs in the general population. Temporary arrhythmias can be caused by emotional stress, exercise, surgical pr ocedures, some medications, and significant alcohol consumption. M ...
... Any irregular heart beat is called an arrhythmia . Some types of arrhythmia are quite common - they show up in about 1% of EKGs in the general population. Temporary arrhythmias can be caused by emotional stress, exercise, surgical pr ocedures, some medications, and significant alcohol consumption. M ...
Mitral Stenosis
... presystolic accentuation - (due to atrial contraction if in sinus rhythm) Mid-diastolic rumble - (longer=tighter stenosis) Differential diagnosis - inflow obstruction e.g. hypertrophic cardiomyopathy or left atrial myxoma - aortic regurgitation - tricuspid stenosis Investigations ECG - AF/ p mitrale ...
... presystolic accentuation - (due to atrial contraction if in sinus rhythm) Mid-diastolic rumble - (longer=tighter stenosis) Differential diagnosis - inflow obstruction e.g. hypertrophic cardiomyopathy or left atrial myxoma - aortic regurgitation - tricuspid stenosis Investigations ECG - AF/ p mitrale ...
Ventricular Fibrillation
... • Deviation from NSR – No organized atrial depolarization, so no normal P waves (impulses are not originating from the sinus node). – Atrial activity is chaotic (resulting in an irregularly irregular rate). – Common, affects 2-4%, up to 5-10% if > 80 years old ...
... • Deviation from NSR – No organized atrial depolarization, so no normal P waves (impulses are not originating from the sinus node). – Atrial activity is chaotic (resulting in an irregularly irregular rate). – Common, affects 2-4%, up to 5-10% if > 80 years old ...
Atrial fibrillation - The Castle Practice
... quite common, affecting approximately 1% of the UK population. It is seen more frequently with advancing age; from 0.7% in people aged 55-59 years to 18% in those older than 85 years. It occurs more in males than in females. ...
... quite common, affecting approximately 1% of the UK population. It is seen more frequently with advancing age; from 0.7% in people aged 55-59 years to 18% in those older than 85 years. It occurs more in males than in females. ...
Simulating Initiation and Termination of Reentry in
... – Tachycardia - pace of the heart is faster than the regulatory signal from the sinus node (over 100 beats per min). • Rapid heart beating in the ventricles can be life-threatening. (ex. Ventricular fibrillation heart can’t pump any blood) Currently, over 2.2 million Americans are living with atrial ...
... – Tachycardia - pace of the heart is faster than the regulatory signal from the sinus node (over 100 beats per min). • Rapid heart beating in the ventricles can be life-threatening. (ex. Ventricular fibrillation heart can’t pump any blood) Currently, over 2.2 million Americans are living with atrial ...
AV Nodal Reentrant Tachycardia (AVNRT)
... A heart rhythm condition where the heart rate can become abnormally fast A type of supraventricular tachycardia (SVT). This is related to a “short circuit” in the electrical connections of the heart located in the region of the AV node (part of the normal electrical conduction system of the heart). ...
... A heart rhythm condition where the heart rate can become abnormally fast A type of supraventricular tachycardia (SVT). This is related to a “short circuit” in the electrical connections of the heart located in the region of the AV node (part of the normal electrical conduction system of the heart). ...
Pre-Employment Exam CCU 1. The pulmonary artery occlusive
... c. Normal sinus rhythm d. Myocardial infarction 11. Atrial flutter is: a. Dangerous because the ventricular rate could suddenly increase b. Dangerous because it could progress to a second degree heart block c. Normal after an MI d. Not usually something to worry about for most people 12. When using ...
... c. Normal sinus rhythm d. Myocardial infarction 11. Atrial flutter is: a. Dangerous because the ventricular rate could suddenly increase b. Dangerous because it could progress to a second degree heart block c. Normal after an MI d. Not usually something to worry about for most people 12. When using ...
Electrocardiogram
... • Stimulation of purkinje fibers causes ventricles to contract simutaneously, forcing blood into aorta and pulmonary arteries ...
... • Stimulation of purkinje fibers causes ventricles to contract simutaneously, forcing blood into aorta and pulmonary arteries ...
chapter - Human Kinetics
... Occasionally, and without lengthening of the P-R interval, QRS complexes are skipped. ...
... Occasionally, and without lengthening of the P-R interval, QRS complexes are skipped. ...
Atrial Fibrillation
... • Deviation from NSR – No organized atrial depolarization, so no normal P waves (impulses are not originating from the sinus node). – Atrial activity is chaotic (resulting in an irregularly irregular rate). – Common, affects 2-4%, up to 5-10% if > 80 years old ...
... • Deviation from NSR – No organized atrial depolarization, so no normal P waves (impulses are not originating from the sinus node). – Atrial activity is chaotic (resulting in an irregularly irregular rate). – Common, affects 2-4%, up to 5-10% if > 80 years old ...
Palpitation
... Slow palpitations are likely to be due to drugs such as beta-blockers Intermittent (SVT, VT) Continuous (Anemia, Anxiety, Valve disease) ...
... Slow palpitations are likely to be due to drugs such as beta-blockers Intermittent (SVT, VT) Continuous (Anemia, Anxiety, Valve disease) ...
The Cardiac Cycle
... • Atrial Systole is where both atria contract (0.1s) • Ventricular Systole is where both ventricles contract forcing blood through the pulmonary artery to the lungs and through the aorta to the rest of the body (0.3s) • Atrial diastole is where the atria relax. Blood will enter the atria from the la ...
... • Atrial Systole is where both atria contract (0.1s) • Ventricular Systole is where both ventricles contract forcing blood through the pulmonary artery to the lungs and through the aorta to the rest of the body (0.3s) • Atrial diastole is where the atria relax. Blood will enter the atria from the la ...
Chapter 20 I am - Mrs Smith`s Biology
... I am the stage that follows atrial systole where the ventricles contract and the AV valves close. The SL valves open and blood is pushed from the heart QRS Wave ...
... I am the stage that follows atrial systole where the ventricles contract and the AV valves close. The SL valves open and blood is pushed from the heart QRS Wave ...
EKG Review - Rescue One
... blood with each contraction. If it is not “rung out fully” with each squeeze- it cannot absorb it’s full potential. (preload, afterload) ...
... blood with each contraction. If it is not “rung out fully” with each squeeze- it cannot absorb it’s full potential. (preload, afterload) ...
ECG NOTES
... • Rate is usually normal and may be regular except when PVC occurs. PVC may occur alone at regular intervals (bigeminy, trigeminy) or in clusters (salvos). If 6 or more PVCs occur in 1 minute, the heart is becoming very irritable and ventricular tachycardia can begin at any time. ...
... • Rate is usually normal and may be regular except when PVC occurs. PVC may occur alone at regular intervals (bigeminy, trigeminy) or in clusters (salvos). If 6 or more PVCs occur in 1 minute, the heart is becoming very irritable and ventricular tachycardia can begin at any time. ...
Arrhythmias
... rapid rhythmical discharge of impulses that spread throughout the heart caused by re-entrant circuitry movement Types of paroxysmal tachycardia ...
... rapid rhythmical discharge of impulses that spread throughout the heart caused by re-entrant circuitry movement Types of paroxysmal tachycardia ...
What is Atrial Fibrillation?
... may go faster than usually. This can cause the heart muscle to become weak and start to fail. To prevent this from happening, your health care provider may prescribe various medications to control your heart rate. These medications are usually beta blockers (metoprolol), calcium channel blockers (di ...
... may go faster than usually. This can cause the heart muscle to become weak and start to fail. To prevent this from happening, your health care provider may prescribe various medications to control your heart rate. These medications are usually beta blockers (metoprolol), calcium channel blockers (di ...
dysrhythmia cheat sheet
... with normal conduction. Irregular rhythm, impulse may be delayed or nonconducted, varies in rate From an ecotopic focus above the bundle of His, “re-entry” rate from 100 to 300/minute, regular rhythm. May decrease CO Ectopic atrial focus “reentry” Atrial rate is 250 to 400bpm, usually with slow vent ...
... with normal conduction. Irregular rhythm, impulse may be delayed or nonconducted, varies in rate From an ecotopic focus above the bundle of His, “re-entry” rate from 100 to 300/minute, regular rhythm. May decrease CO Ectopic atrial focus “reentry” Atrial rate is 250 to 400bpm, usually with slow vent ...
Atrial Fibrillation
... point (mortality and event free survival) in rate control. There was no difference in the quality of life or functional status. ۞ Rate control is therefore preferred in all except: ...
... point (mortality and event free survival) in rate control. There was no difference in the quality of life or functional status. ۞ Rate control is therefore preferred in all except: ...
By Sasha Darwazeh FY1
... Generally associated with LA hypertrophy. Ineffective contractions = blood stasis in atria → thrombus formation. If from LA, can cause CVA; in RA can cause PE's. 3 types of AF: Acute AF - associated with systemic disease, precipated by electrolyte disturbance or hypoxia, resolves with treatment of ...
... Generally associated with LA hypertrophy. Ineffective contractions = blood stasis in atria → thrombus formation. If from LA, can cause CVA; in RA can cause PE's. 3 types of AF: Acute AF - associated with systemic disease, precipated by electrolyte disturbance or hypoxia, resolves with treatment of ...
Neural Control of Ventricular Rate in Ambulatory Dogs with Pacing
... First Evidence for Long-Term Ventricular Rate Control in Canine Atrial Fibrillation Model Long-term ventricular rate slowing during AF can be achieved by implantation of a nerve stimulator attached to the epicardial AVN fat pad. This novel concept is an attractive alternative to other methods of r ...
... First Evidence for Long-Term Ventricular Rate Control in Canine Atrial Fibrillation Model Long-term ventricular rate slowing during AF can be achieved by implantation of a nerve stimulator attached to the epicardial AVN fat pad. This novel concept is an attractive alternative to other methods of r ...
Atrial Fibrillation
... factors include hyperthyroidism (too much thyroid hormone), obesity, diabetes, and lung disease. Drinking large amounts of alcohol can raise your risk for AF, especially binge drinking. Even modest amounts of alcohol can trigger AF in some people. Caffeine or stress may also trigger AF in some peopl ...
... factors include hyperthyroidism (too much thyroid hormone), obesity, diabetes, and lung disease. Drinking large amounts of alcohol can raise your risk for AF, especially binge drinking. Even modest amounts of alcohol can trigger AF in some people. Caffeine or stress may also trigger AF in some peopl ...
Prognostic value of atrial fibrillation in heart failure with preserved
... Aim: To assess the influence of atrial fibrillation on mortality in heart failure with preserved ejection fraction (HFPEF) in a prospective study compared to heart failure with reduced ejection fraction (HFREF). We have hypothesized that atrial fibrillation decreases survival in HFPEF. Patients and ...
... Aim: To assess the influence of atrial fibrillation on mortality in heart failure with preserved ejection fraction (HFPEF) in a prospective study compared to heart failure with reduced ejection fraction (HFREF). We have hypothesized that atrial fibrillation decreases survival in HFPEF. Patients and ...
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.