Reference Right Atrial Function Determined by Steady
... Abhayaratna et al (3) suggested that left atrial volumes should be incorporated into routine clinical evaluation. The utility of right atrial volume and function for monitoring cardiovascular risk and for guiding therapy may also prove to have an important clinical impact, especially in patients wit ...
... Abhayaratna et al (3) suggested that left atrial volumes should be incorporated into routine clinical evaluation. The utility of right atrial volume and function for monitoring cardiovascular risk and for guiding therapy may also prove to have an important clinical impact, especially in patients wit ...
complete auriculo-ventricular dissociation with high ventricular rate
... rapidly than the auricles; most reported examples which he quotes had auricular rates exceeding the ventricular. His observations led him to conclude that the occurrence of dissociation is favoured, on the one hand by the presence of partial A-V block or by the administration of digitalis, and on th ...
... rapidly than the auricles; most reported examples which he quotes had auricular rates exceeding the ventricular. His observations led him to conclude that the occurrence of dissociation is favoured, on the one hand by the presence of partial A-V block or by the administration of digitalis, and on th ...
BASIC ECG INTERPRETATION
... However signifigant Q-waves in lead III alone are NOT diagnostic of an infarction, even they are otherwise “significant” in size and width. Therefore signifigant Q-waves in lead III are ignored unless other abnormalities are seen. ...
... However signifigant Q-waves in lead III alone are NOT diagnostic of an infarction, even they are otherwise “significant” in size and width. Therefore signifigant Q-waves in lead III are ignored unless other abnormalities are seen. ...
Implant and LongTerm Evaluation of Atrial Signal Amplification in a
... Methods: P-wave amplitudes were collected and compared at implant both with a conventional external device (“unfiltered” P wave) and telemetrically with the implanted ICD (“filtered” P wave). Filtered/unfiltered P-wave ratio (amplification factor, AmF) was evaluated at implant and during follow-up. ...
... Methods: P-wave amplitudes were collected and compared at implant both with a conventional external device (“unfiltered” P wave) and telemetrically with the implanted ICD (“filtered” P wave). Filtered/unfiltered P-wave ratio (amplification factor, AmF) was evaluated at implant and during follow-up. ...
Atrial fibrillation management
... echocardiography were older [69 (14) vs. 66 (13) years], presented more frequently as first detected AF (28 vs. 17%), were more often enrolled in a non-university centre (49 vs. 37%), or enrolled in Western European countries (35 vs. 24%). The other diagnostic procedures were most often used in parox ...
... echocardiography were older [69 (14) vs. 66 (13) years], presented more frequently as first detected AF (28 vs. 17%), were more often enrolled in a non-university centre (49 vs. 37%), or enrolled in Western European countries (35 vs. 24%). The other diagnostic procedures were most often used in parox ...
Evolutionary Optimization of Atrial Fibrillation Diagnostic Algorithms
... increasing the prevalence of risk factors, the complications of AF will be increased. More than 7 million people in the United States suffer from AF, and this statistic is around 4.5 million people in Europe [27], [38] . It is estimated that this number will exponentially increase during the next 50 ...
... increasing the prevalence of risk factors, the complications of AF will be increased. More than 7 million people in the United States suffer from AF, and this statistic is around 4.5 million people in Europe [27], [38] . It is estimated that this number will exponentially increase during the next 50 ...
Comparison of ThreeDimensional Speckle Tracking
... Objective: Noninvasive accurate assessment of left atrial (LA) size and function is an essential requirement in daily clinical practice. Real time three-dimensional (3D) echocardiography (RT3DE) with direct volumetric method has been found to be a highly accurate and reproducible noninvasive tool fo ...
... Objective: Noninvasive accurate assessment of left atrial (LA) size and function is an essential requirement in daily clinical practice. Real time three-dimensional (3D) echocardiography (RT3DE) with direct volumetric method has been found to be a highly accurate and reproducible noninvasive tool fo ...
Future Perspectives in the Pharmacological Treatment of Atrial
... disease” [18]. Why do AF and HF so often co-exist? Many cardiovascular diseases are common risk factors for both HF and AF development [19]. These conditions (e.g. hypertension, valvular heart disease, coronary artery disease etc.) may eventually lead to structural and electrophysiological remodelin ...
... disease” [18]. Why do AF and HF so often co-exist? Many cardiovascular diseases are common risk factors for both HF and AF development [19]. These conditions (e.g. hypertension, valvular heart disease, coronary artery disease etc.) may eventually lead to structural and electrophysiological remodelin ...
ACLS Pretest - Heartland CPR
... tachycardia (WCT) aspect of VT. In most patients a WCT will be ventricular tachycardia, especially with older age and history of cardiac disease or acute chest discomfort. In these settings, presume and treat as VTG. With advanced rhythm training, you will learn that WCTs may be abnormally conducted ...
... tachycardia (WCT) aspect of VT. In most patients a WCT will be ventricular tachycardia, especially with older age and history of cardiac disease or acute chest discomfort. In these settings, presume and treat as VTG. With advanced rhythm training, you will learn that WCTs may be abnormally conducted ...
Effects of Lying Position on P-Wave Dispersion in Patients with
... These findings showed that PWD in patients with HF decreased in the right lateral decubitus position and that the values of PWD in the right lateral decubitus position were statistically lower than those in the other two positions and at baseline. The relationship between P-wave duration and inhomog ...
... These findings showed that PWD in patients with HF decreased in the right lateral decubitus position and that the values of PWD in the right lateral decubitus position were statistically lower than those in the other two positions and at baseline. The relationship between P-wave duration and inhomog ...
Rate Control vs Rhythm Control in Patients With
... age, 60.8 ⴞ 11.2 years) with a mean AF duration of 273.7 ⴞ 112.4 days. The mean observation period was 1.7 ⴞ 0.4 years. One hundred one patients were randomly assigned to the rate control group and received rate-slowing therapy guided by repeated 24-h Holter monitoring. Direct current cardioversion ...
... age, 60.8 ⴞ 11.2 years) with a mean AF duration of 273.7 ⴞ 112.4 days. The mean observation period was 1.7 ⴞ 0.4 years. One hundred one patients were randomly assigned to the rate control group and received rate-slowing therapy guided by repeated 24-h Holter monitoring. Direct current cardioversion ...
Pacemaker Therapy in Atrial Fibrillation
... There are a number of different roles for pacemaker therapy in the management of Atrial Fibrillation (AF). The most common indication for pacing in AF is to prevent bradycardia in patients with rapid ventricular rates and sinus node dysfunction. Atrioventricular (AV) junction ablation can be an effe ...
... There are a number of different roles for pacemaker therapy in the management of Atrial Fibrillation (AF). The most common indication for pacing in AF is to prevent bradycardia in patients with rapid ventricular rates and sinus node dysfunction. Atrioventricular (AV) junction ablation can be an effe ...
historical summary of the relevant facts in
... The French physiologist and physicist developed the capillary electrometer. The device consisted of a thin glass tube with a column of mercury located beneath sulfuric acid. The mercury surface moved with the electrical potential variations and was observed through a microscope. The best recording d ...
... The French physiologist and physicist developed the capillary electrometer. The device consisted of a thin glass tube with a column of mercury located beneath sulfuric acid. The mercury surface moved with the electrical potential variations and was observed through a microscope. The best recording d ...
Atrial Fibrillation in Acute Myocardial Infarction
... The presence of AF is associated with a high risk of heart failure and mortality in MI patients, regardless of its timing. Some investigators found no increase in mortality related to the presence of AF,10-13 while other studies showed a greater overall early mortality rate in patients with anterior ...
... The presence of AF is associated with a high risk of heart failure and mortality in MI patients, regardless of its timing. Some investigators found no increase in mortality related to the presence of AF,10-13 while other studies showed a greater overall early mortality rate in patients with anterior ...
Recommendations for Management of Equine Athletes with
... mitral valve dysplasia, degenerative or inflammatory valve thickening (including bacterial endocarditis), prolapse (MVP), thickened or ruptured chordae tendineae (RCT), and flail leaflet. MR also can develop secondary to valve annulus or ventricular dilatation (as with severe AR, nonrestrictive VSD or ...
... mitral valve dysplasia, degenerative or inflammatory valve thickening (including bacterial endocarditis), prolapse (MVP), thickened or ruptured chordae tendineae (RCT), and flail leaflet. MR also can develop secondary to valve annulus or ventricular dilatation (as with severe AR, nonrestrictive VSD or ...
Pdf version - Polish Archives of Internal Medicine
... Abbreviations: ACS, acute coronary syndrome; ACTION, National Cardiovascular Data Registry’s Acute Coronary Treatment and Intervention Outcomes Network Registry – Get With the Guidelines; AF, atrial fibrillation; APEX-AMI, Assessment of Pexelizumab in Acute Myocardial Infarction; CV, cardiovascular; ...
... Abbreviations: ACS, acute coronary syndrome; ACTION, National Cardiovascular Data Registry’s Acute Coronary Treatment and Intervention Outcomes Network Registry – Get With the Guidelines; AF, atrial fibrillation; APEX-AMI, Assessment of Pexelizumab in Acute Myocardial Infarction; CV, cardiovascular; ...
Basic ECG Rhythm Identification Part II Learning Objectives
... 2° Heart Block Type II - Symptoms • More likely to experience light-headedness, dizziness, or syncope, although they may be asymptomatic • Patients may have chest pain if the heart block is related to ischemia • Bradycardia ...
... 2° Heart Block Type II - Symptoms • More likely to experience light-headedness, dizziness, or syncope, although they may be asymptomatic • Patients may have chest pain if the heart block is related to ischemia • Bradycardia ...
Reliability of Central Venous Pressure as an Indicator of Left Atrial
... result. Recently, volume expansion therapy has been advocated even in the patient in cardiogenic shock following myocardial infarction.9 Cohn and Luria3 have stated that right and left atrial pressures rise symmetrically during volume expansion in normal subjects and that consistent rises in CVP are ...
... result. Recently, volume expansion therapy has been advocated even in the patient in cardiogenic shock following myocardial infarction.9 Cohn and Luria3 have stated that right and left atrial pressures rise symmetrically during volume expansion in normal subjects and that consistent rises in CVP are ...
Reliability of Central Venous Pressure as an
... result. Recently, volume expansion therapy has been advocated even in the patient in cardiogenic shock following myocardial infarction.9 Cohn and Luria3 have stated that right and left atrial pressures rise symmetrically during volume expansion in normal subjects and that consistent rises in CVP are ...
... result. Recently, volume expansion therapy has been advocated even in the patient in cardiogenic shock following myocardial infarction.9 Cohn and Luria3 have stated that right and left atrial pressures rise symmetrically during volume expansion in normal subjects and that consistent rises in CVP are ...
Palpitations
... machine. A reading is then taken. Sometimes, an ‘exercise ECG’ is used to analyse any abnormalities with your heart rhythm. An exercise ECG means taking an ECG recording while you are exercising on a treadmill or stationary bike. If your palpitations happen very often but not often enough to be reco ...
... machine. A reading is then taken. Sometimes, an ‘exercise ECG’ is used to analyse any abnormalities with your heart rhythm. An exercise ECG means taking an ECG recording while you are exercising on a treadmill or stationary bike. If your palpitations happen very often but not often enough to be reco ...
Atrial Autonomic Innervation
... neurons release acetylcholine, a neurotransmitter that activates nicotinic acetylcholine receptors on postganglionic neurons. In response to sympathetic stimuli, postganglionic neurons release norepinephrine, activating beta-receptors. Beta-1-receptors compose 70% to 80% of all betareceptors in the ...
... neurons release acetylcholine, a neurotransmitter that activates nicotinic acetylcholine receptors on postganglionic neurons. In response to sympathetic stimuli, postganglionic neurons release norepinephrine, activating beta-receptors. Beta-1-receptors compose 70% to 80% of all betareceptors in the ...
CARDiAC RHYTHMS AND ARRHYTHMiAS
... Atrial tachycardia generally has a gradual onset with rates greater than 180 bpm.6,20 It can be seen in infants with normal hearts, in those with congenital heart disease, and after cardiac surgery because of high levels of circulating catecholamines.6,15 Parameters ♥♥Variation in size and pattern o ...
... Atrial tachycardia generally has a gradual onset with rates greater than 180 bpm.6,20 It can be seen in infants with normal hearts, in those with congenital heart disease, and after cardiac surgery because of high levels of circulating catecholamines.6,15 Parameters ♥♥Variation in size and pattern o ...
12/07 Atrial Septal Defects
... With contrast or Doppler, TEE can detect any brief right-to-left shunting that may occur with transient increases in right-sided pressure. TEE is much more sensitive than TTE for detection of left-to-right shunt as negative right atrial contrast (93% vs. 58% in one study). TEE can detect flow throug ...
... With contrast or Doppler, TEE can detect any brief right-to-left shunting that may occur with transient increases in right-sided pressure. TEE is much more sensitive than TTE for detection of left-to-right shunt as negative right atrial contrast (93% vs. 58% in one study). TEE can detect flow throug ...
Curriculum Vitae - Amazon Web Services
... investigate mechanisms of ventricular tachycardia and heterogeneities in conduction in left bundle branch block. Non-contact mapping records global activation from an entire cardiac chamber on a beat-by-beat basis thereby enabling insights previously only possible using animal models. In addition to ...
... investigate mechanisms of ventricular tachycardia and heterogeneities in conduction in left bundle branch block. Non-contact mapping records global activation from an entire cardiac chamber on a beat-by-beat basis thereby enabling insights previously only possible using animal models. In addition to ...
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.