Heart Physiology Notes
... • Heart pumps the body’s 6 L of blood over 1,000 times a day = 6,000 L of blood in a day • Atria contract (Luppa), then ventricles contract (Duppa) = Luppa Duppa • Atria contracts 60 beats/min • Ventricles contract 20-40 beats/min • Heart Rate - the number of beats per minute ...
... • Heart pumps the body’s 6 L of blood over 1,000 times a day = 6,000 L of blood in a day • Atria contract (Luppa), then ventricles contract (Duppa) = Luppa Duppa • Atria contracts 60 beats/min • Ventricles contract 20-40 beats/min • Heart Rate - the number of beats per minute ...
Sinus Rhythms - Beaumont Emergency Medicine
... If you see a ventricular rate close to 150, consider atrial flutter Frequently is a transient rhythm which may degenerate into atrial fibrillation or convert to sinus ...
... If you see a ventricular rate close to 150, consider atrial flutter Frequently is a transient rhythm which may degenerate into atrial fibrillation or convert to sinus ...
Atrial Fibrillation and Hypertension
... 2.2.1 Atrial fibrillation (AF) occurs when rapid disorganised electrical signals in the atria depolarise small islets of atrial myocardium, rather than the atrium as a whole. This causes the atria to contract in a rapid, irregular, and uncoordinated fashion (fibrillation). As a result, blood pools ...
... 2.2.1 Atrial fibrillation (AF) occurs when rapid disorganised electrical signals in the atria depolarise small islets of atrial myocardium, rather than the atrium as a whole. This causes the atria to contract in a rapid, irregular, and uncoordinated fashion (fibrillation). As a result, blood pools ...
D. Alkaline
... Helps blood circulate from the right ventricle to the body Helps blood circulate from the left ventricle to the lungs through the pulmonary artery Helps blood flow from the left ventricle to coronary arteries Helps blood flow back from the lungs through the coronary vein 21. What does a balloon pump ...
... Helps blood circulate from the right ventricle to the body Helps blood circulate from the left ventricle to the lungs through the pulmonary artery Helps blood flow from the left ventricle to coronary arteries Helps blood flow back from the lungs through the coronary vein 21. What does a balloon pump ...
AFFIRM Trial
... The following presenters and panelists (and their family members) have no relevant financial disclosures to make: Jad Georges Skaf, MD ...
... The following presenters and panelists (and their family members) have no relevant financial disclosures to make: Jad Georges Skaf, MD ...
Electrical activity in the heart
... the flow of ions across the cell membrane, changing the potential difference between the inside of the cell and the extracellular fluid), but you can think of a neurone (nerve cell) or a myocytes as being able to alternate between a resting stage (when there is no electrical activity in the cell), a ...
... the flow of ions across the cell membrane, changing the potential difference between the inside of the cell and the extracellular fluid), but you can think of a neurone (nerve cell) or a myocytes as being able to alternate between a resting stage (when there is no electrical activity in the cell), a ...
August 2010 Newsletter - Cardiology Associates, LLC
... block: pacing from the CS does not result in conduction into the vein. A spontaneous pulmonary vein potential is recorded (arrow). Presentation of Case B • An 83-year-old gentleman with history of hypertension, sinus bradycardia, mitral valve prolapse and moderate mitral regurgitation had been follo ...
... block: pacing from the CS does not result in conduction into the vein. A spontaneous pulmonary vein potential is recorded (arrow). Presentation of Case B • An 83-year-old gentleman with history of hypertension, sinus bradycardia, mitral valve prolapse and moderate mitral regurgitation had been follo ...
Health Science of South Carolina
... just AF because the heart rate tends to be more rapid during AFL, while AF is usually associated with increased AV nodal penetration and slower ventricular responses. o Notable physical examination findings include a rapid peripheral pulse that is more often regular than irregular. Cannon “a” waves ...
... just AF because the heart rate tends to be more rapid during AFL, while AF is usually associated with increased AV nodal penetration and slower ventricular responses. o Notable physical examination findings include a rapid peripheral pulse that is more often regular than irregular. Cannon “a” waves ...
The Shocking Truth
... heart completely! When the current stops, the heart usually starts beating again But larger currents also cause burns and tissue damage, especially with voltages around 500-1000 volts ...
... heart completely! When the current stops, the heart usually starts beating again But larger currents also cause burns and tissue damage, especially with voltages around 500-1000 volts ...
ECG Recording Basic Interpretation
... Is essential in the diagnosis of chest pain and abnormal heart rhythms ...
... Is essential in the diagnosis of chest pain and abnormal heart rhythms ...
Group4CHFexacerbate
... Mrs. G has come for a follow up appointment after a diagnosis of new atrial fibrillation and congestive heart failure. Comorbidities include hypothyroidism which was found to be inadequately treated while in hospital 2 weeks ago. On examination she has inspiratory basal crackles bilaterally and pitt ...
... Mrs. G has come for a follow up appointment after a diagnosis of new atrial fibrillation and congestive heart failure. Comorbidities include hypothyroidism which was found to be inadequately treated while in hospital 2 weeks ago. On examination she has inspiratory basal crackles bilaterally and pitt ...
files/uploads/Courses/Biology 5610/EKG
... • The center corresponds to the vector sum of all electric activity occurring in ...
... • The center corresponds to the vector sum of all electric activity occurring in ...
Atrial Fibrillation - CardiacAndVascular.com
... Impaired blood flow to heart muscle (ischemia) Weakened heart muscle (cardiomyopathy) Damage to the heart from long-standing, untreated high blood pressure (hypertensive heart disease) ...
... Impaired blood flow to heart muscle (ischemia) Weakened heart muscle (cardiomyopathy) Damage to the heart from long-standing, untreated high blood pressure (hypertensive heart disease) ...
Factsheet - Flecainide-Page 1
... the ventricles from too frequent conduction from an atrial rhythm to the ventricles. Flecainide usually produces very few side effects but has the potential to cause other abnormal heart rhythms, and can occasionally produce other transient symptoms such as visual disturbances, light headedness or ga ...
... the ventricles from too frequent conduction from an atrial rhythm to the ventricles. Flecainide usually produces very few side effects but has the potential to cause other abnormal heart rhythms, and can occasionally produce other transient symptoms such as visual disturbances, light headedness or ga ...
Introduction to the heart`s electrical conduction system
... Meanwhile, the impulse reaches the atrioventricular node, which lies between the atria and the ventricles, before travelling on through the bundle of His and right and left bundle branches. The ventricles, which have now had sufficient time to fill with blood, contract in response to the impulse. ...
... Meanwhile, the impulse reaches the atrioventricular node, which lies between the atria and the ventricles, before travelling on through the bundle of His and right and left bundle branches. The ventricles, which have now had sufficient time to fill with blood, contract in response to the impulse. ...
palpitations
... Origins :Atria: Ventricle:AV junction Mechanisms QRS morphology and duration Role of antiarrhythmic therapy in Rx ...
... Origins :Atria: Ventricle:AV junction Mechanisms QRS morphology and duration Role of antiarrhythmic therapy in Rx ...
Document
... ► Definition: a disorder of impulse formation. An abnormal electrical conduction that changes the heart rate and rhythm. A disturbance in the heart’s rhythm. ► Why? Causes? 1) Classified according to their origin 2) Some are mild, asymptomatic – require no treatment 3) Some are catastrophic – requir ...
... ► Definition: a disorder of impulse formation. An abnormal electrical conduction that changes the heart rate and rhythm. A disturbance in the heart’s rhythm. ► Why? Causes? 1) Classified according to their origin 2) Some are mild, asymptomatic – require no treatment 3) Some are catastrophic – requir ...
Pediatric Cardiac Rhythm Analysis for the Non
... 1- 3 years = 90 - 150 3 - 5 years = 70 - 140 5 – 8 years = 65 – 130 8 years and older = 60 – 110 ...
... 1- 3 years = 90 - 150 3 - 5 years = 70 - 140 5 – 8 years = 65 – 130 8 years and older = 60 – 110 ...
Causes of Cardiac Arrhythmias
... 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 NOTES
... The heart muscle is called MYOCARDIUM. It is involuntary – it pumps without us having to think about it! The inside layer of muscle is ENDOCARDIUM. The outside layer is EPICARDIUM. The membranous sac around the heart is the ...
... The heart muscle is called MYOCARDIUM. It is involuntary – it pumps without us having to think about it! The inside layer of muscle is ENDOCARDIUM. The outside layer is EPICARDIUM. The membranous sac around the heart is the ...
Chapter 20 - FacultyWeb
... 1. The AV node slows the heart to an average between its own rate and that of the SA node. 2. Parasympathetic innervation slows the HR. 3. The AV node takes over causing the HR to be 40–60 bpm. 4. None of these is correct. ...
... 1. The AV node slows the heart to an average between its own rate and that of the SA node. 2. Parasympathetic innervation slows the HR. 3. The AV node takes over causing the HR to be 40–60 bpm. 4. None of these is correct. ...
File
... which emits abnormal impulses at odd time during cardiac rhythm. Possible causes of ectopic foci are: Local area of ischemia Small calcified plaques at different points in the heart, which press against the adjacent cardiac muscle so some fibers are irritated Toxic irritation of the AV node, Purk ...
... which emits abnormal impulses at odd time during cardiac rhythm. Possible causes of ectopic foci are: Local area of ischemia Small calcified plaques at different points in the heart, which press against the adjacent cardiac muscle so some fibers are irritated Toxic irritation of the AV node, Purk ...
A1991FQ72000001
... renin-an~iotensin-aldosterone system and the finding that many biological actions of’ ANF are mediated, at the cellular level by the interaction of ANE with g~ianiIylcyciase. This provided an unexpected but key function for the sedimentáble form of this enzyme that, surprisingly, 3 turned out to be ...
... renin-an~iotensin-aldosterone system and the finding that many biological actions of’ ANF are mediated, at the cellular level by the interaction of ANE with g~ianiIylcyciase. This provided an unexpected but key function for the sedimentáble form of this enzyme that, surprisingly, 3 turned out to be ...
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.