
skill/procedure/equipment - St. Elizabeth Medical Center
... plan for correction, a repeat evaluation, and a competency demonstration within 30-90 days. Note any relevant comments in the adjacent column. ...
... plan for correction, a repeat evaluation, and a competency demonstration within 30-90 days. Note any relevant comments in the adjacent column. ...
Mechanisms of Atrial Paralysis due to Atrial Fibrillation
... myocytes from atria in sinus rhythm showed these changes. However, a high percentage of myocytes with myolysis (-42%) was also found in samples from hearts of patients in sinus rhythm with a low left ventricular ejection fraction. Most of these patients had dilated atria and/or increased pulmonary a ...
... myocytes from atria in sinus rhythm showed these changes. However, a high percentage of myocytes with myolysis (-42%) was also found in samples from hearts of patients in sinus rhythm with a low left ventricular ejection fraction. Most of these patients had dilated atria and/or increased pulmonary a ...
2012 HRS/EHRA/ECAS Expert Consensus Statement on Catheter
... members based on an extensive literature review as well as their own experience. It is directed to all health care professionals who are involved in the care of patients with AF, particularly those who are undergoing, or are being considered for, catheter or surgical ablation procedures for AF. This ...
... members based on an extensive literature review as well as their own experience. It is directed to all health care professionals who are involved in the care of patients with AF, particularly those who are undergoing, or are being considered for, catheter or surgical ablation procedures for AF. This ...
Left ventricular ejection fraction estimation using mutual information
... LVEF (r > 0.80) in comparison of low correlation from MUGA LVEF (r = 0.60). In previous studies, LVEF measurements by various techniques are not interchangeable [6, 11]. It is important to know whether the results of each technique are interchangeable, and thereby how the results of large studies in ...
... LVEF (r > 0.80) in comparison of low correlation from MUGA LVEF (r = 0.60). In previous studies, LVEF measurements by various techniques are not interchangeable [6, 11]. It is important to know whether the results of each technique are interchangeable, and thereby how the results of large studies in ...
Spatio-temporal Evolution and Prediction of Action Potential
... [Ca2+]i in the genesis of EM alternans. Despite the important role of [Ca2+]i in the development of EM alternans, no criteria has been proposed to predict the onset of [Ca2+]i and EM alternans. Various theories have been put forward to explain how impaired calcium handling can induce calcium and AP ...
... [Ca2+]i in the genesis of EM alternans. Despite the important role of [Ca2+]i in the development of EM alternans, no criteria has been proposed to predict the onset of [Ca2+]i and EM alternans. Various theories have been put forward to explain how impaired calcium handling can induce calcium and AP ...
Acceleration of Ca2+ Waves in Monocrotaline - J
... sarcoplasmic reticulum Ca2+ release channel accelerate Ca2+ waves in ventricular hypertrophy, thereby causing arrhythmogenesis. (Circ J 2011; 75: 1343 – 1349) Key Words: Ca2+ waves; Monocrotaline; Ventricular hypertrophy ...
... sarcoplasmic reticulum Ca2+ release channel accelerate Ca2+ waves in ventricular hypertrophy, thereby causing arrhythmogenesis. (Circ J 2011; 75: 1343 – 1349) Key Words: Ca2+ waves; Monocrotaline; Ventricular hypertrophy ...
Cardiac BIN1 folds T-tubule membrane, controlling ion flux and
... the driving force for transmembrane ion flux and decreasing actionpotential duration11. Although T-tubule lumen is known to have connected branch points1, this structural feature does not explain highly restricted diffusion. In failing hearts, T tubules are remodeled, resulting in fewer but larger T ...
... the driving force for transmembrane ion flux and decreasing actionpotential duration11. Although T-tubule lumen is known to have connected branch points1, this structural feature does not explain highly restricted diffusion. In failing hearts, T tubules are remodeled, resulting in fewer but larger T ...
Mapping and Investigation of Atrial Electrogram Fractionation in
... Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia found in clinical practice, and it is a leading cause of stroke. It has been shown that triggers in the pulmonary veins (PVs) are important in the initiation and perpetuation of paroxysmal AF. PV isolation (PVI) by radiofrequen ...
... Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia found in clinical practice, and it is a leading cause of stroke. It has been shown that triggers in the pulmonary veins (PVs) are important in the initiation and perpetuation of paroxysmal AF. PV isolation (PVI) by radiofrequen ...
Identification and Documentation of Environmental
... ‘views’ of the same set of assumptions, with each view being distinguished by a unique set of classification criteria. Therefore, in essence, the PACEMAKER project is merely a magnified case study, demonstrating the practicality of the documentation approaches that are proposed in this thesis, and t ...
... ‘views’ of the same set of assumptions, with each view being distinguished by a unique set of classification criteria. Therefore, in essence, the PACEMAKER project is merely a magnified case study, demonstrating the practicality of the documentation approaches that are proposed in this thesis, and t ...
Electronic Control Device Research Index As of July 14, 2008
... output ranges. Also, the safety of the TASER devices has been verified in numerous human and animal studies. It is doubtful that any law enforcement use-of-force technique or tool has been tested so thoroughly for safety or effectiveness. In order to deliver a pulse into the vulnerable period of the ...
... output ranges. Also, the safety of the TASER devices has been verified in numerous human and animal studies. It is doubtful that any law enforcement use-of-force technique or tool has been tested so thoroughly for safety or effectiveness. In order to deliver a pulse into the vulnerable period of the ...
Noninvasive Pacing
... stimulation, drug toxicity and cardiac arrest.2,3,4 Noninvasive pacing, while effective, was not without problems. Skeletal muscle and cutaneous nerve stimulation was common and painful. Small electrodes (3 cm diameter) resulted in high current density which was associated with painful cutaneous ner ...
... stimulation, drug toxicity and cardiac arrest.2,3,4 Noninvasive pacing, while effective, was not without problems. Skeletal muscle and cutaneous nerve stimulation was common and painful. Small electrodes (3 cm diameter) resulted in high current density which was associated with painful cutaneous ner ...
Noninvasive Pacing
... stimulation, drug toxicity and cardiac arrest.2,3,4 Noninvasive pacing, while effective, was not without problems. Skeletal muscle and cutaneous nerve stimulation was common and painful. Small electrodes (3 cm diameter) resulted in high current density which was associated with painful cutaneous ner ...
... stimulation, drug toxicity and cardiac arrest.2,3,4 Noninvasive pacing, while effective, was not without problems. Skeletal muscle and cutaneous nerve stimulation was common and painful. Small electrodes (3 cm diameter) resulted in high current density which was associated with painful cutaneous ner ...
Reviews - Circulation Research
... controversial. Triggering the release of Ca2⫹ from the SR via NCX during membrane depolarization has been shown to be ...
... controversial. Triggering the release of Ca2⫹ from the SR via NCX during membrane depolarization has been shown to be ...
Unique Kir2.x Properties Determine Regional and Species
... the effect of high [K⫹]o on outward currents of Kir2.x isoforms has also not been compared. It is possible that the properties of Kir2.x isoforms, existing either as homomers or heteromers, determine regional IK1 differences in the heart. Although recent studies have shown that Kir2.x subunits heter ...
... the effect of high [K⫹]o on outward currents of Kir2.x isoforms has also not been compared. It is possible that the properties of Kir2.x isoforms, existing either as homomers or heteromers, determine regional IK1 differences in the heart. Although recent studies have shown that Kir2.x subunits heter ...
Ticagrelor Protects the Heart Against Reperfusion Injury and
... addition to platelet inhibition, ticagrelor, but not clopidogrel, has protective effects against ischemia–reperfusion that may help explain the differences in clinical benefit in the PLATO trial.7,8 However, a recent multicenter, randomized, double-blind clinical trial did not show a clear clinical ...
... addition to platelet inhibition, ticagrelor, but not clopidogrel, has protective effects against ischemia–reperfusion that may help explain the differences in clinical benefit in the PLATO trial.7,8 However, a recent multicenter, randomized, double-blind clinical trial did not show a clear clinical ...
Pathophysiological Mechanisms of Atrial Fibrillation: A Translational
... is found in 30 – 40% of patients with heart failure (115). Heart failure and AF appear to promote each other, with AF compromising LV function, and LV dysfunction causing atrial dilation and pressure overload. Valvular heart disease, especially mitral valve disease, was the most common clinical cond ...
... is found in 30 – 40% of patients with heart failure (115). Heart failure and AF appear to promote each other, with AF compromising LV function, and LV dysfunction causing atrial dilation and pressure overload. Valvular heart disease, especially mitral valve disease, was the most common clinical cond ...
Mechanical Alternans in Patients With Chronic Heart Failure
... incomplete activation of the heart or changes of the ventricular activation process (16). Another possible relating condition for QRS alternans is positional oscillation of the heart in massive pericardial effusion. ST-T electrical alternans depends on the oscillation of the action potential duratio ...
... incomplete activation of the heart or changes of the ventricular activation process (16). Another possible relating condition for QRS alternans is positional oscillation of the heart in massive pericardial effusion. ST-T electrical alternans depends on the oscillation of the action potential duratio ...
sinus node paces
... QRS Duration • QRS duration - depolarization of right and left ventricles, from the endocardium to epicardium • Normal QRS duration - 0.06-0.10 sec • QRS duration > 0.10 sec, a conduction delay exists in the bundle branches, Purkinjie network or ventricular myocardium, or ventricular ectopic conduct ...
... QRS Duration • QRS duration - depolarization of right and left ventricles, from the endocardium to epicardium • Normal QRS duration - 0.06-0.10 sec • QRS duration > 0.10 sec, a conduction delay exists in the bundle branches, Purkinjie network or ventricular myocardium, or ventricular ectopic conduct ...
Kinematic Characterization of Left Ventricular Chamber Stiffness
... Mossahebi, Sina, "Kinematic Characterization of Left Ventricular Chamber Stiffness and Relaxation" (2014). All Theses and Dissertations (ETDs). 1327. http://openscholarship.wustl.edu/etd/1327 ...
... Mossahebi, Sina, "Kinematic Characterization of Left Ventricular Chamber Stiffness and Relaxation" (2014). All Theses and Dissertations (ETDs). 1327. http://openscholarship.wustl.edu/etd/1327 ...
article for Myocardial infarction
... develop (as little as 20 min or less in some animal models). It takes several hours before myocardial necrosis can be identified by macroscopic or microscopic post-mortem examination. Complete necrosis of all myocardial cells at risk requires at least 2–4 h or longer depending on the presence of col ...
... develop (as little as 20 min or less in some animal models). It takes several hours before myocardial necrosis can be identified by macroscopic or microscopic post-mortem examination. Complete necrosis of all myocardial cells at risk requires at least 2–4 h or longer depending on the presence of col ...
2016 ESC Guidelines for the management of atrial fibrillation
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
2016 ESC Guidelines for the management of atrial fibrillation
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
2016 ESC Guidelines for the management of atrial fibrillation
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
... the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity between the ESC Guidelines and any other official recommendations or guidelines issued by the relevant public health authorities, in particular in relation to good use of healthc ...
Independent effects of preload, afterload, and contractility on left
... should be predictable. However, volume-independent behavior of torsion has been observed, and the effects of load on this deformation remain controversial. We used magnetic resonance imaging (MRI) with tagging to study the relationships between load and contractility, and torsion. In ten isolated, b ...
... should be predictable. However, volume-independent behavior of torsion has been observed, and the effects of load on this deformation remain controversial. We used magnetic resonance imaging (MRI) with tagging to study the relationships between load and contractility, and torsion. In ten isolated, b ...
ACC - A Fib (Complete)
... SA, Nishimura R, Ornato JP, Page RL, Riegel B, Priori SG, Blanc J-J, Budaj A, Camm AJ, Dean V, Deckers JW, Despres C, Dickstein K, Lekakis J, McGregor K, Metra M, Morais J, Osterspey A, Zamorano JL. ACC/AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation: a report of the ...
... SA, Nishimura R, Ornato JP, Page RL, Riegel B, Priori SG, Blanc J-J, Budaj A, Camm AJ, Dean V, Deckers JW, Despres C, Dickstein K, Lekakis J, McGregor K, Metra M, Morais J, Osterspey A, Zamorano JL. ACC/AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation: a report of the ...
Ventricular fibrillation

Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.