acc/aha/esc practice guidelines—full text
... Cardiology (ESC). This is the first such joint effort. The Task Force wishes to acknowledge the important contributions of Jean-Pierre L. Bassand, MD, FESC, the previous chair of the ESC Scientific and Clinical Initiatives Committee, who helped initiate this joint effort. Experts in the subject unde ...
... Cardiology (ESC). This is the first such joint effort. The Task Force wishes to acknowledge the important contributions of Jean-Pierre L. Bassand, MD, FESC, the previous chair of the ESC Scientific and Clinical Initiatives Committee, who helped initiate this joint effort. Experts in the subject unde ...
ACC/AHA/ESC Guidelines for the Management of
... Practice Guidelines, whose charge is to develop and revise practice guidelines for important cardiovascular diseases and procedures, directs this effort. The Task Force is pleased to have this guideline co-sponsored by the European Society of Cardiology (ESC). This is the first such joint effort. Th ...
... Practice Guidelines, whose charge is to develop and revise practice guidelines for important cardiovascular diseases and procedures, directs this effort. The Task Force is pleased to have this guideline co-sponsored by the European Society of Cardiology (ESC). This is the first such joint effort. Th ...
Noninvasive electrocardiographic imaging for cardiac
... studies: (i) normal activation and repolarization (subject N); (ii) right bundle branch (RBB) block (subject R), a conduction abnormality in which conduction through the right bundle branch of the specialized conduction system is blocked, and the impulse originating in the sinoatrial node is conduct ...
... studies: (i) normal activation and repolarization (subject N); (ii) right bundle branch (RBB) block (subject R), a conduction abnormality in which conduction through the right bundle branch of the specialized conduction system is blocked, and the impulse originating in the sinoatrial node is conduct ...
2001 The European Society of Cardiology
... Atrial fibrillation is a supraventricular tachyarrhythmia characterized by uncoordinated atrial activation with consequent deterioration of atrial mechanical function. On the electrocardiogram (ECG), AF is described by the replacement of consistent P waves by rapid oscillations or fibrillatory waves ...
... Atrial fibrillation is a supraventricular tachyarrhythmia characterized by uncoordinated atrial activation with consequent deterioration of atrial mechanical function. On the electrocardiogram (ECG), AF is described by the replacement of consistent P waves by rapid oscillations or fibrillatory waves ...
PART IV LABORATORY EXAMINATION
... You are probably wondering why there is no wave or complex representing the return of the stimulated atria to the resting state. The atrial ST segment (STa) and atrial T wave (Ts) are generally not observed on the normal ECG because of their low amplitudes. Similarly the routine ECG is not sensitive ...
... You are probably wondering why there is no wave or complex representing the return of the stimulated atria to the resting state. The atrial ST segment (STa) and atrial T wave (Ts) are generally not observed on the normal ECG because of their low amplitudes. Similarly the routine ECG is not sensitive ...
PART IV LABORATORY EXAMINATION
... You are probably wondering why there is no wave or complex representing the return of the stimulated atria to the resting state. The atrial ST segment (STa) and atrial T wave (Ts) are generally not observed on the normal ECG because of their low amplitudes. Similarly the routine ECG is not sensitive ...
... You are probably wondering why there is no wave or complex representing the return of the stimulated atria to the resting state. The atrial ST segment (STa) and atrial T wave (Ts) are generally not observed on the normal ECG because of their low amplitudes. Similarly the routine ECG is not sensitive ...
Exercise 31 ECGHeartsounds
... The ability of the cardiac muscle to contract is intrinsic, e.g. it does not depend on the nervous system to initiate its contraction, and it continues even if all connections are severed. Two systems exert their effects on heart activity: one is the autonomic nervous system, and the other is the in ...
... The ability of the cardiac muscle to contract is intrinsic, e.g. it does not depend on the nervous system to initiate its contraction, and it continues even if all connections are severed. Two systems exert their effects on heart activity: one is the autonomic nervous system, and the other is the in ...
Concealed Conduction
... in pig ventricular myocytes have shown that diastolic excitability is modulated by the long time course of deactivation of IK (11). If conditioning pulse intervals were much longer than expected intervals for complete deactivation of IK , electrotonic inhibition occurred. Under such conditions, the ...
... in pig ventricular myocytes have shown that diastolic excitability is modulated by the long time course of deactivation of IK (11). If conditioning pulse intervals were much longer than expected intervals for complete deactivation of IK , electrotonic inhibition occurred. Under such conditions, the ...
2014 AHA/ACC/HRS Guideline for the Management of - Med-IQ
... CM, Yancy CW, 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation, Journal of the American College of Cardiology (2014), doi: 10.1016/j.jacc.2014.03.022. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers ...
... CM, Yancy CW, 2014 AHA/ACC/HRS Guideline for the Management of Patients With Atrial Fibrillation, Journal of the American College of Cardiology (2014), doi: 10.1016/j.jacc.2014.03.022. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers ...
Manifest and Concealed Reentry
... findings in both man and experimental animals are in agreement with those of Moe and Mendez who stated that reciprocal responses can be so readily induced in normal animal hearts that their occurrence must be considered a normal physiologic response.10 This reentry can be either manifest or conceale ...
... findings in both man and experimental animals are in agreement with those of Moe and Mendez who stated that reciprocal responses can be so readily induced in normal animal hearts that their occurrence must be considered a normal physiologic response.10 This reentry can be either manifest or conceale ...
2014 AHA/ACC/HRS Guideline for the Management of - GT
... 1.2. Organization of the Writing Committee ....................................................................................................................... 9 1.3. Document Review and Approval ..................................................................................................... ...
... 1.2. Organization of the Writing Committee ....................................................................................................................... 9 1.3. Document Review and Approval ..................................................................................................... ...
Accepted Manuscript
... 1.2. Organization of the Writing Committee ....................................................................................................................... 9 1.3. Document Review and Approval ..................................................................................................... ...
... 1.2. Organization of the Writing Committee ....................................................................................................................... 9 1.3. Document Review and Approval ..................................................................................................... ...
Flecainide: Current status and perspectives in arrhythmia
... the liver. In normal subjects, plasma peak levels are reached after 2-3 h and steady state levels within 3-5 d. The half-life of flecainide ranges from 7 to 23 h and seems to be unaffected by dose[11,12]. Patients with ventricular ectopic beats have a longer half-life (mean 20 h) compared with norma ...
... the liver. In normal subjects, plasma peak levels are reached after 2-3 h and steady state levels within 3-5 d. The half-life of flecainide ranges from 7 to 23 h and seems to be unaffected by dose[11,12]. Patients with ventricular ectopic beats have a longer half-life (mean 20 h) compared with norma ...
as a PDF - Lettre de l`UFCV N°58
... and will be considered current unless the task force revises or withdraws them from distribution. The ACC/AHA/ESC Committee to Develop Guidelines for the Management of Patients With Atrial Fibrillation conducted a comprehensive review of the relevant literature from 1980 to June 2000. Literature ...
... and will be considered current unless the task force revises or withdraws them from distribution. The ACC/AHA/ESC Committee to Develop Guidelines for the Management of Patients With Atrial Fibrillation conducted a comprehensive review of the relevant literature from 1980 to June 2000. Literature ...
PDF Full-text
... sinuatrial junction, albeit that an anatomical sinus node is absent [20,21,35,37,55,56]. In addition, some studies report pacemaking upstream of the sinuatrial junction at variable positions [53,57], and the dominant pacemaker activity of the heart of man may shift within the sinus node region [29,5 ...
... sinuatrial junction, albeit that an anatomical sinus node is absent [20,21,35,37,55,56]. In addition, some studies report pacemaking upstream of the sinuatrial junction at variable positions [53,57], and the dominant pacemaker activity of the heart of man may shift within the sinus node region [29,5 ...
Chapter 6
... mitral valve. The atrial margin of the AVN is apposed to the myocardialized vestibular spine, containing the tendon of Todaro, while the ventricular margin of the AVN is continuous with the bundle of His. The slow pathway of the AVN (green) is a myocardial inferior extension of the compact part of t ...
... mitral valve. The atrial margin of the AVN is apposed to the myocardialized vestibular spine, containing the tendon of Todaro, while the ventricular margin of the AVN is continuous with the bundle of His. The slow pathway of the AVN (green) is a myocardial inferior extension of the compact part of t ...
Mechanism of diastolic rumble and presystolic - Heart
... The mechanism of the murmurs heard in mitral stenosis was studied in 6i patients by using simultaneous recordings of the mitral valve echocardiogram, phonocardiogram, and apex cardiogram. It was observed that: (a) the diastolic rumble began just after the E point of the echocardiogram, clearly relat ...
... The mechanism of the murmurs heard in mitral stenosis was studied in 6i patients by using simultaneous recordings of the mitral valve echocardiogram, phonocardiogram, and apex cardiogram. It was observed that: (a) the diastolic rumble began just after the E point of the echocardiogram, clearly relat ...
the PDF - Heart Rhythm Society
... (Table 1), “Primary Statements,” displays 117 primary diagnostic statements under 14 categories. The majority of the primary statements are nondescriptive and convey clinical meaning without additional statements. The second listing (Table 2), “Secondary Statements,” provides additional statements t ...
... (Table 1), “Primary Statements,” displays 117 primary diagnostic statements under 14 categories. The majority of the primary statements are nondescriptive and convey clinical meaning without additional statements. The second listing (Table 2), “Secondary Statements,” provides additional statements t ...
Alternate Patterns of Premature Ventricular Excitation
... was performed in the cardiac catheterization suite where a transvenous catheter electrode was positioned in the right atrium. Coupled or paired stimuli were delivered to the atrium by an isolated battery-powered source at an adjusted interval whiclh resulted in alternate patterns of ventricular exci ...
... was performed in the cardiac catheterization suite where a transvenous catheter electrode was positioned in the right atrium. Coupled or paired stimuli were delivered to the atrium by an isolated battery-powered source at an adjusted interval whiclh resulted in alternate patterns of ventricular exci ...
12-Lead EKG Interpretation - Mississippi Nurses Association
... Quick Review of Ventricular (Wide QRS) rhythms Slow idioventricular escape rhythm: rate 30-40bpm; no P wave evident; wide QRS Accelerated Idioventricluar rhythm: rate 40-110bpm Ventricular Tachycardia: ventricular rate >120-130bpm; wide QRS – Regular wide complex Tachycardia is always considered VT ...
... Quick Review of Ventricular (Wide QRS) rhythms Slow idioventricular escape rhythm: rate 30-40bpm; no P wave evident; wide QRS Accelerated Idioventricluar rhythm: rate 40-110bpm Ventricular Tachycardia: ventricular rate >120-130bpm; wide QRS – Regular wide complex Tachycardia is always considered VT ...
Chapter 1: The cardiac pacemaker and conduction system develops
... in the conduction system and in the adjacent working myocardium13,14, indicating that conduction system and working cardiomyocytes are derived from one common myocardial progenitor that is present in the embryonic heart tube. In the last 20 years, considerable progress has been made to delineate the ...
... in the conduction system and in the adjacent working myocardium13,14, indicating that conduction system and working cardiomyocytes are derived from one common myocardial progenitor that is present in the embryonic heart tube. In the last 20 years, considerable progress has been made to delineate the ...
Rectilinear Biphasic Defibrillation
... required to achieve the same efficacy, while risk of post-shock myocardial dysfunction increases.9-11 That’s why the ZOLL RBW has a fixed duration of 10 msec. ZOLL doesn’t use longer durations to create the illusion of more energy because it does not result in greater efficacy. ...
... required to achieve the same efficacy, while risk of post-shock myocardial dysfunction increases.9-11 That’s why the ZOLL RBW has a fixed duration of 10 msec. ZOLL doesn’t use longer durations to create the illusion of more energy because it does not result in greater efficacy. ...
Electrophysiological Characteristics of Canine Atrial Plateau Fibers
... point from which to time the arrival of the impulse at distal sites. In an alternative procedure, this reference electrode remained extracellular and the stimulus artifact was used as the reference point. A second microelectrode was used as an exploring electrode to impalefibersof the same type at i ...
... point from which to time the arrival of the impulse at distal sites. In an alternative procedure, this reference electrode remained extracellular and the stimulus artifact was used as the reference point. A second microelectrode was used as an exploring electrode to impalefibersof the same type at i ...
Management of patients with palpitations: a position paper from the
... are scarce. Although palpitations are generally associated with low rates of mortality,4,47 they should bring to attention a potential serious condition in patients with structural or arrhythmogenic heart disease or a family history of sudden death. This is also important to keep in mind if the palp ...
... are scarce. Although palpitations are generally associated with low rates of mortality,4,47 they should bring to attention a potential serious condition in patients with structural or arrhythmogenic heart disease or a family history of sudden death. This is also important to keep in mind if the palp ...
The Prognostic Value of Left Atrial Peak Reservoir Strain in Acute
... Patients with definite MI referred for invasive coronary angiography, either acute because of STEMI or within 1 week of non-STEMI, were prospectively enrolled at 2 tertiary cardiac centers in the Copenhagen region. All patients provided written informed consent prior to transthoracic echocardiograph ...
... Patients with definite MI referred for invasive coronary angiography, either acute because of STEMI or within 1 week of non-STEMI, were prospectively enrolled at 2 tertiary cardiac centers in the Copenhagen region. All patients provided written informed consent prior to transthoracic echocardiograph ...
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.