Common Cardiac Arrhythmias
... Underlying sinus rhythm with supraventricular premature complexes ...
... Underlying sinus rhythm with supraventricular premature complexes ...
learning activity module - selu moodle
... SA node (sinoatrial) is located in the upper right atrium near the junction of the superior vena cava and the right atrium. o SA node cells have highest automaticity and fastest rate of impulse formation at 60 –100/ minute o Considered the pacemaker of the heart AV node (atrioventricular) is located ...
... SA node (sinoatrial) is located in the upper right atrium near the junction of the superior vena cava and the right atrium. o SA node cells have highest automaticity and fastest rate of impulse formation at 60 –100/ minute o Considered the pacemaker of the heart AV node (atrioventricular) is located ...
CHF from HTN
... B. High sodium intake C. Genetic factors D. Sympathetic nervous system activity 2. Which of the following explains why some individuals with hypertension, such as Mrs. B, develop congestive heat failure? A. Preload becomes so low that efficient ventricular contraction is lost B. Afterload becomes so ...
... B. High sodium intake C. Genetic factors D. Sympathetic nervous system activity 2. Which of the following explains why some individuals with hypertension, such as Mrs. B, develop congestive heat failure? A. Preload becomes so low that efficient ventricular contraction is lost B. Afterload becomes so ...
Lecture 18 Foreign Bodies, Masses, etc.
... • Thrombus may form in areas of Akinesis or dyskinesis • Left atrial thrombi usually associated with MS and left atrial enlargement • Most commonly found at ventricular apex (anterior MI’s) • Papillary fibroelastoma (10% of all primary cardiac tumors – 85% of valve tumors- mostly on AoV and MV). • R ...
... • Thrombus may form in areas of Akinesis or dyskinesis • Left atrial thrombi usually associated with MS and left atrial enlargement • Most commonly found at ventricular apex (anterior MI’s) • Papillary fibroelastoma (10% of all primary cardiac tumors – 85% of valve tumors- mostly on AoV and MV). • R ...
Document
... AV node consists of 3 zones: AN (atria-nodus), N (nodus) and NH (nodusHis). In AN zone, the conduction gets slower, as there is less sodium channels and slower depolarisation N zone is formed by nodal cells with low voltage (-50mV) – „slow cells“. These cells do not contain sodium channels, their de ...
... AV node consists of 3 zones: AN (atria-nodus), N (nodus) and NH (nodusHis). In AN zone, the conduction gets slower, as there is less sodium channels and slower depolarisation N zone is formed by nodal cells with low voltage (-50mV) – „slow cells“. These cells do not contain sodium channels, their de ...
The Child With A Murmur - Faculty of Medicine
... normal S1, an S2 that sounds like it always has 2 components (is never single) and a grade 2/6, lowpitched, systolic murmur. It is loudest at the left upper sternal border. What is the most likely cause of his murmur? What helps us decide? ...
... normal S1, an S2 that sounds like it always has 2 components (is never single) and a grade 2/6, lowpitched, systolic murmur. It is loudest at the left upper sternal border. What is the most likely cause of his murmur? What helps us decide? ...
5250-6-enlargement
... Normal P wave amplitude is less than 2.5 mm and 0.12 seconds in width. Abnormal P waves are typically taller than 2.5 mm but not longer the 0.12 sec. ...
... Normal P wave amplitude is less than 2.5 mm and 0.12 seconds in width. Abnormal P waves are typically taller than 2.5 mm but not longer the 0.12 sec. ...
Sudden Death in Young Athletes (3.20.11)
... athletic activities. The vast majority of these patients live normal lives, but severe cases may place them at increased risk under certain circumstances. That’s a partial list of the major common causes. What is more important is to know how doctors may sort out whether a youthful athlete may be at ...
... athletic activities. The vast majority of these patients live normal lives, but severe cases may place them at increased risk under certain circumstances. That’s a partial list of the major common causes. What is more important is to know how doctors may sort out whether a youthful athlete may be at ...
Atrial Fibrillation and Atrial Flutter
... equipment, trained personnel, and general anesthesia Patients with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in patients with severe underlying heart disease or le ...
... equipment, trained personnel, and general anesthesia Patients with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in patients with severe underlying heart disease or le ...
atrial fibrillation and atrial flutter
... equipment, trained personnel, and general anesthesia Patients with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in patients with severe underlying heart disease or le ...
... equipment, trained personnel, and general anesthesia Patients with fast (secondary) atrial fibrillation are treated medically to slow the ventricular rate; converting the atrial fibrillation to a normal rhythm would be ideal, but such attempts in patients with severe underlying heart disease or le ...
Long-Term Oral Anticoagulant Therapy in Patients With Unstable
... is considered intractable despite multiple-drug therapy and repeated cardioversions.1 Moreover, in epidemiological studies, about 60% of patients with atrial fibrillation have a chronic form. In most cases, the main problem is not converting to sinus rhythm but maintaining it for a long time and avo ...
... is considered intractable despite multiple-drug therapy and repeated cardioversions.1 Moreover, in epidemiological studies, about 60% of patients with atrial fibrillation have a chronic form. In most cases, the main problem is not converting to sinus rhythm but maintaining it for a long time and avo ...
Updated Management of Atrial Fibrillation
... Normal progress of AF starts with short and rare attacks and proceeds with longer and frequent attacks. Many patients develop one AF type continuously in time. Only a small group of patients who do not have predisposing factors continue to present with paroxysmal AF despite years (1, 2). Although as ...
... Normal progress of AF starts with short and rare attacks and proceeds with longer and frequent attacks. Many patients develop one AF type continuously in time. Only a small group of patients who do not have predisposing factors continue to present with paroxysmal AF despite years (1, 2). Although as ...
2008 Term 1 No 5
... Physics can save lives: a new type of defibrillation aims to reduce the voltage needed to shock out-of-control hearts back to a normal beating pattern. Ordinarily the beating heart is an orderly process (called systole) in which the heart muscle cells contract cooperatively to insure that blood is p ...
... Physics can save lives: a new type of defibrillation aims to reduce the voltage needed to shock out-of-control hearts back to a normal beating pattern. Ordinarily the beating heart is an orderly process (called systole) in which the heart muscle cells contract cooperatively to insure that blood is p ...
Cardiovascular 22 – Heart Valve Disease
... septum is punctured and a balloon is inflated in the place of the mitral valve to open it up. Mitral valve replacement (only necessary if mitral regurgitation is present, and if stenosis is severe). Mitral Regurgitation AETIOLOGY Can be acquired (due to rheumatism, prolapse, calcific degenerativ ...
... septum is punctured and a balloon is inflated in the place of the mitral valve to open it up. Mitral valve replacement (only necessary if mitral regurgitation is present, and if stenosis is severe). Mitral Regurgitation AETIOLOGY Can be acquired (due to rheumatism, prolapse, calcific degenerativ ...
Patient Guide to Understanding Atrial Fibrillation
... Atrial fibrillation (also called AF or A Fib) is the most common abnormal heart rhythm, affecting about 5 million people worldwide. It is a very fast, uncontrolled rhythm caused when the upper chambers of the heart (the atria) quiver instead of beating in an organized manner. During AF, the atrial r ...
... Atrial fibrillation (also called AF or A Fib) is the most common abnormal heart rhythm, affecting about 5 million people worldwide. It is a very fast, uncontrolled rhythm caused when the upper chambers of the heart (the atria) quiver instead of beating in an organized manner. During AF, the atrial r ...
Tachycardia
... ventricles). This affects the ability of the heart to pump blood. It may also cause an increase in your heart rate. Ventricular tachycardia (VT): VT is less common, but more dangerous. The heart beats in a regular rhythm but very fast. The problem starts in your lower heart chambers. It usually occu ...
... ventricles). This affects the ability of the heart to pump blood. It may also cause an increase in your heart rate. Ventricular tachycardia (VT): VT is less common, but more dangerous. The heart beats in a regular rhythm but very fast. The problem starts in your lower heart chambers. It usually occu ...
Atrial Fibrillation - St. Joseph`s Healthcare Hamilton
... from many different areas within the atria or upper chambers, especially the pulmonary veins. These signals are disorganized and rapid. This causes your heart to beat fast and unevenly. Atrial fibrillation is also called AF or A fib. There are 3 types of atrial fibrillation: • Paroxysmal: This is an ...
... from many different areas within the atria or upper chambers, especially the pulmonary veins. These signals are disorganized and rapid. This causes your heart to beat fast and unevenly. Atrial fibrillation is also called AF or A fib. There are 3 types of atrial fibrillation: • Paroxysmal: This is an ...
ATRIAL FIBRILLATION IN CHILDHOOD WITH FAMILIAL
... In 1936, Orgain and Wolf et al.1 first recorded a familial incidence of atrial fibrillation (AF) and hyperthyroidism after the onset of atrial fibrillation in a patient with a normal heart. Brugada et al.2 (1997) and Chen et al.3 (2003) identified Spanish families and Chinese families with atrial fi ...
... In 1936, Orgain and Wolf et al.1 first recorded a familial incidence of atrial fibrillation (AF) and hyperthyroidism after the onset of atrial fibrillation in a patient with a normal heart. Brugada et al.2 (1997) and Chen et al.3 (2003) identified Spanish families and Chinese families with atrial fi ...
Tricuspid and Mitral Valve Dysplasia
... Clinical Signs Most puppies and kittens have no signs, but a murmur may be discovered on physical examination. If the dog or cat is older, signs of heart failure may be present. With mitral dysplasia, most animals are normal until they develop signs of left heart failure by 6-9 months of age. Exerci ...
... Clinical Signs Most puppies and kittens have no signs, but a murmur may be discovered on physical examination. If the dog or cat is older, signs of heart failure may be present. With mitral dysplasia, most animals are normal until they develop signs of left heart failure by 6-9 months of age. Exerci ...
Atrial Fibrillation - Weber State University
... Complications can be heart damage resulting in a heart attack as well as clots that can travel as an embolus to the brain and cause a stroke. 2.2 million individuals in U.S. Incidence increases with age and precedence is 8% over 80 yrs. Males more likely. Causes can include hypertension, primary hea ...
... Complications can be heart damage resulting in a heart attack as well as clots that can travel as an embolus to the brain and cause a stroke. 2.2 million individuals in U.S. Incidence increases with age and precedence is 8% over 80 yrs. Males more likely. Causes can include hypertension, primary hea ...
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... complaining of profound fatigue for one day. Her electrolytes, complete blood count, TSH and serial troponins were all within normal limits. Initial ECG (Fig 1) revealed the presence of a narrow-complex supraventricular tachycardia, initially interpreted as sinus tachycardia at 129 beats per minute. ...
... complaining of profound fatigue for one day. Her electrolytes, complete blood count, TSH and serial troponins were all within normal limits. Initial ECG (Fig 1) revealed the presence of a narrow-complex supraventricular tachycardia, initially interpreted as sinus tachycardia at 129 beats per minute. ...
Approach to Management of Atrial Fibrillation in the Indian Scenario
... the precipitating factors. Nearly one-fourth of the patients would have spontaneous termination of AF within the next 24 to 48 hours. Electric cardioversion should be considered if there is hemodynamic compromise or if trans-esophageal echocardiogram does not reveal any clot. Patients with recurrent ...
... the precipitating factors. Nearly one-fourth of the patients would have spontaneous termination of AF within the next 24 to 48 hours. Electric cardioversion should be considered if there is hemodynamic compromise or if trans-esophageal echocardiogram does not reveal any clot. Patients with recurrent ...
OXFORD
... In these first two cases the AF can be eliminated by suitable treatment but in the third case any treatment will not eliminate it: only reduce it. Atrial Flutter. This is usually paroxysmal, where the P wave in the ECG has a saw tooth appearance. The rhythm is fast but regular. Supraventricular tach ...
... In these first two cases the AF can be eliminated by suitable treatment but in the third case any treatment will not eliminate it: only reduce it. Atrial Flutter. This is usually paroxysmal, where the P wave in the ECG has a saw tooth appearance. The rhythm is fast but regular. Supraventricular tach ...
Direct Current Cardioversion
... Heart rhythm is mainly controlled by the conduction system of the heart. Any abnormality in the conduction system may result in abnormal heart rhythm (arrhythmia). Arrhythmias with fast heart rate can cause syncope, heart failure or occasionally cardiac death. It may be necessary to stop arrhythmias ...
... Heart rhythm is mainly controlled by the conduction system of the heart. Any abnormality in the conduction system may result in abnormal heart rhythm (arrhythmia). Arrhythmias with fast heart rate can cause syncope, heart failure or occasionally cardiac death. It may be necessary to stop arrhythmias ...
Rhythm Control in Atrial Fibrillation — One Setback
... is increasing evidence that angiotensin-converting–enzyme inhibitors, statins, and other non2726 ...
... is increasing evidence that angiotensin-converting–enzyme inhibitors, statins, and other non2726 ...
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.