1-s2.0-S1936878X13004440-main - VBN
... the measurements of time to peak strain. If 6 or more segments did not have sufficient tracking, the patient was excluded from the analyses. Follow-up and endpoint definition. The primary outcome was a composite of definite or suspected SCD, admission with documented VA, or appropriate ICD discharge on ...
... the measurements of time to peak strain. If 6 or more segments did not have sufficient tracking, the patient was excluded from the analyses. Follow-up and endpoint definition. The primary outcome was a composite of definite or suspected SCD, admission with documented VA, or appropriate ICD discharge on ...
The epsilon waves clinical characterization and electrophysiological
... The term “epsilon” was nice, because it occurs in the Greek alphabet after delta; thus, delta represents the pre-excitation and epsilon the post-excitation phenomenon. In addition, epsilon is also used in mathematics to express a very small phenomenon. The proximity of the right ventricle (RV) to t ...
... The term “epsilon” was nice, because it occurs in the Greek alphabet after delta; thus, delta represents the pre-excitation and epsilon the post-excitation phenomenon. In addition, epsilon is also used in mathematics to express a very small phenomenon. The proximity of the right ventricle (RV) to t ...
Continuous positive airway pressure decreases myocardial oxygen
... in LV stroke work and that this was accompanied by a fall in myocardial V̇o2 . This observation is in keeping with other studies that have demonstrated a favourable haemodynamic effect of CPAP when applied acutely. These actions include a decrease in LV afterload, LV end-diastolic and end-systolic v ...
... in LV stroke work and that this was accompanied by a fall in myocardial V̇o2 . This observation is in keeping with other studies that have demonstrated a favourable haemodynamic effect of CPAP when applied acutely. These actions include a decrease in LV afterload, LV end-diastolic and end-systolic v ...
Differential diagnosis of broad complex tachycardia
... • QRS alternans–alternate beat variation in QRS amplitude > 0.1 mV –occurs with equal frequency in WCT due to VT & SVT,but greater no. of leads show this (7 vs 4) in SVT with aberrancy(Kremer et al; AJC ) ...
... • QRS alternans–alternate beat variation in QRS amplitude > 0.1 mV –occurs with equal frequency in WCT due to VT & SVT,but greater no. of leads show this (7 vs 4) in SVT with aberrancy(Kremer et al; AJC ) ...
Duration of the Phases of Left Ventricular Systole
... the duration of the phases of systole. He demonstrated in the frog heart that augmentation of filling prolonged ejection, shortened the strain (isovolumie) phase, and delayed aortic valve closure. These results were later confirmed by Peserico10 in the turtle heart, hy Katz2 in the isolated dog hear ...
... the duration of the phases of systole. He demonstrated in the frog heart that augmentation of filling prolonged ejection, shortened the strain (isovolumie) phase, and delayed aortic valve closure. These results were later confirmed by Peserico10 in the turtle heart, hy Katz2 in the isolated dog hear ...
The Effect of Pressure or Flow Stress on Right Ventricular Protein
... results in increased myocardial protein synthesis in vivo and in vitro, but such rapid alterations are not consistently seen in volume loading. The difference in response is difficult to clarify since it is not possible to effect alterations in left ventricular pressure or perfusion without profound ...
... results in increased myocardial protein synthesis in vivo and in vitro, but such rapid alterations are not consistently seen in volume loading. The difference in response is difficult to clarify since it is not possible to effect alterations in left ventricular pressure or perfusion without profound ...
... Despite the effectiveness of anthracycline chemotherapy, cardiotoxicity remains a significant long-term secondary effect. The myofibrillar loss and cellular necrosis from anthracycline cardiotoxicity leads to delayed and irreversible myocardial damage, culminating in cardiac dysfunction, cardiomyopa ...
Slideset - European Society of Cardiology
... Most cases of SCD are due to ventricular fibrillation (VF) or ventricular tachyarrhythmia (VT) degenerating into VF, in individuals with ...
... Most cases of SCD are due to ventricular fibrillation (VF) or ventricular tachyarrhythmia (VT) degenerating into VF, in individuals with ...
Digoxin in heart failure and cardiac arrhythmias
... [E2]). However, the benefit was also observed in those with milder systolic heart failure and in those with preserved systolic function. The DIG study9 did not report the impact of digoxin on symptomatic status and quality of life. However, the benefit of digoxin in reducing hospitalisation for hear ...
... [E2]). However, the benefit was also observed in those with milder systolic heart failure and in those with preserved systolic function. The DIG study9 did not report the impact of digoxin on symptomatic status and quality of life. However, the benefit of digoxin in reducing hospitalisation for hear ...
Tachycardia-induced cardiomyopathy in children and
... reversible condition with effective treatment of tachycardia. These patients may be misdiagnosed, potentially leading to inappropriate treatment. Diagnosis is often late and always should be suspected in patients with congestive heart failure and unexplained persistent tachycardia. Case reports. We ...
... reversible condition with effective treatment of tachycardia. These patients may be misdiagnosed, potentially leading to inappropriate treatment. Diagnosis is often late and always should be suspected in patients with congestive heart failure and unexplained persistent tachycardia. Case reports. We ...
Assessment of Regional Left Ventricular Wall Motion Abnormalities
... views using a seven-segment model（cine-MIP）. We also assessed global LV function by DSCT with a semiautomatic, three-dimensional region growing algorithm. LVG was used as a gold standard to evaluate regional wall motion and global LV function. Our institutional review board approved this retrospecti ...
... views using a seven-segment model（cine-MIP）. We also assessed global LV function by DSCT with a semiautomatic, three-dimensional region growing algorithm. LVG was used as a gold standard to evaluate regional wall motion and global LV function. Our institutional review board approved this retrospecti ...
Temporal Evolution of Left Ventricular Strain Late After Repair of
... Although short-term outcome is excellent, long-term sequelae include increased rates of hypertension, LV hypertrophy (LVH), coronary artery disease, congestive heart failure, and premature death (1,3). Studies have reported increased LV mass by echocardiography (4 – 7), and enhanced ejection fractio ...
... Although short-term outcome is excellent, long-term sequelae include increased rates of hypertension, LV hypertrophy (LVH), coronary artery disease, congestive heart failure, and premature death (1,3). Studies have reported increased LV mass by echocardiography (4 – 7), and enhanced ejection fractio ...
Myocarditis Presenting with Ventricular Arrhythmias
... out the inflammatory process of the myocardium may itself be arrhythmogenic, nonetheless the change in the electrophysiological properties of the myocardiocytes seems also play a role in causing the arrhythmias. Changes in expression of surface ion channels, as assessed by quantitative determination ...
... out the inflammatory process of the myocardium may itself be arrhythmogenic, nonetheless the change in the electrophysiological properties of the myocardiocytes seems also play a role in causing the arrhythmias. Changes in expression of surface ion channels, as assessed by quantitative determination ...
Dynamics of low-frequency R-R interval oscillations preceding
... custom software (Burdick, Inc, Milton, Wis) and verified by a cardiologist. The'R-R intervals between normal QRS complexes were extracted, and a regularly" spaced time series was sampled at 2 Hz with the use of a boxcar low-pass filter. 27 Gaps in the time series resulting from noise or ectopic beat ...
... custom software (Burdick, Inc, Milton, Wis) and verified by a cardiologist. The'R-R intervals between normal QRS complexes were extracted, and a regularly" spaced time series was sampled at 2 Hz with the use of a boxcar low-pass filter. 27 Gaps in the time series resulting from noise or ectopic beat ...
His Bundle Pacing Or Biventricular Pacing For Cardiac
... implantation of a new or replacement pacemaker or implantable cardioverter defibrillator (ICD) with an anticipated requirement for a significant percentage (>40 %) of ventricular pacing[10]. ...
... implantation of a new or replacement pacemaker or implantable cardioverter defibrillator (ICD) with an anticipated requirement for a significant percentage (>40 %) of ventricular pacing[10]. ...
Left Ventricular Filling and Diastolic Pressure
... periods during early and late diastole; little filling occurred during the middle third of diastole (diastasis). The diastolic pressure-volume relationship was approximately exponential and was fitted by the equation P = —a + becY, where a, b, and c are positive constants; the relationship appeared ...
... periods during early and late diastole; little filling occurred during the middle third of diastole (diastasis). The diastolic pressure-volume relationship was approximately exponential and was fitted by the equation P = —a + becY, where a, b, and c are positive constants; the relationship appeared ...
Arrhythmia-Induced Cardiomyopathies
... postural orthostatic tachycardia syndrome (POTS), although the average heart rate can be >100 beats/ min. There is no specific heart rate cutoff at which AIC develops. The rate is not well defined, may be age dependent, and is likely lower than initially suspected. Little is known about patient factor ...
... postural orthostatic tachycardia syndrome (POTS), although the average heart rate can be >100 beats/ min. There is no specific heart rate cutoff at which AIC develops. The rate is not well defined, may be age dependent, and is likely lower than initially suspected. Little is known about patient factor ...
moderated poster session v - European Heart Journal
... Medical Image Computing, ESAT - PSI, KULeuven, Leuven, Belgium; 2Circulation and Medical Imaging, Norwegian Institute of Science and Technology, Trondheim, Norway Introduction: Deformation imaging of the heart has proven its clinical value. Despite promising findings current methodologies remain limi ...
... Medical Image Computing, ESAT - PSI, KULeuven, Leuven, Belgium; 2Circulation and Medical Imaging, Norwegian Institute of Science and Technology, Trondheim, Norway Introduction: Deformation imaging of the heart has proven its clinical value. Despite promising findings current methodologies remain limi ...
Atrial fibrillation: Who should be referred for ablation therapy for
... AF catheter ablation should not be performed in patients who cannot be treated with anticoagulant therapy during and after the procedure. AF catheter ablation to restore sinus rhythm should not be performed with the sole intent of obviating the need for anticoagulation. ...
... AF catheter ablation should not be performed in patients who cannot be treated with anticoagulant therapy during and after the procedure. AF catheter ablation to restore sinus rhythm should not be performed with the sole intent of obviating the need for anticoagulation. ...
Atrial Fibrillation Ablation
... fibrillation electrical impulses or signals come from many different areas within the right atrium and left atrium (upper chambers), especially the pulmonary veins. These signals are disorganized and rapid. This causes your heart to beat fast and unevenly. ...
... fibrillation electrical impulses or signals come from many different areas within the right atrium and left atrium (upper chambers), especially the pulmonary veins. These signals are disorganized and rapid. This causes your heart to beat fast and unevenly. ...
CARDIAC MEMORY T WAVE FREQUENCY AS AN ELECTROCARDIOGRAPHIC SURROGATE FOR
... Once again, these T wave abnormalities are present during normal conduction and are therefore not secondary. They can occur in the absence of organic heart disease and are thus also not primary. Therefore, the post-tachycardia syndrome, consisting of T wave inversion after an episode (or episodes) o ...
... Once again, these T wave abnormalities are present during normal conduction and are therefore not secondary. They can occur in the absence of organic heart disease and are thus also not primary. Therefore, the post-tachycardia syndrome, consisting of T wave inversion after an episode (or episodes) o ...
Detection of Incomplete Left Bundle Branch Block by Noninvasive
... varying levels of electrical dyssynchrony, confirmed by QRS widening, prolongation of activation time and increased LV-RV activation difference. The induced dyssynchrony seen here was similar to a previous porcine and canine models [7,8], and recapitulates abnormalities found in patients with electr ...
... varying levels of electrical dyssynchrony, confirmed by QRS widening, prolongation of activation time and increased LV-RV activation difference. The induced dyssynchrony seen here was similar to a previous porcine and canine models [7,8], and recapitulates abnormalities found in patients with electr ...
MRI assessment of LV relaxation by untwisting rate
... at time t and Tormax is the maximum systolic torsion. [Normalization to maximum torsion was performed as the primary analysis here because , the gold standard for relaxation, is based on the time required for a percentage of pressure fall (1/eth) rather than an absolute pressure drop in mmHg. Howev ...
... at time t and Tormax is the maximum systolic torsion. [Normalization to maximum torsion was performed as the primary analysis here because , the gold standard for relaxation, is based on the time required for a percentage of pressure fall (1/eth) rather than an absolute pressure drop in mmHg. Howev ...
The Treatment of Atrial Fibrillation
... injectable form of heparin (Lovonox) is self-administered for a few days before and after the ablation procedure, as a precaution against blood clots. Patients are instructed on how to inject themselves with the tiny needle that is used to deliver the heparin under the skin. Because the ablation pr ...
... injectable form of heparin (Lovonox) is self-administered for a few days before and after the ablation procedure, as a precaution against blood clots. Patients are instructed on how to inject themselves with the tiny needle that is used to deliver the heparin under the skin. Because the ablation pr ...
Fulltext - Jultika
... Sudden cardiac death (SCD) is a major medical and public health concern responsible for 50% of cardiovascular deaths and as much as 15% to 20% of overall mortality. Coronary heart disease is the underlying cause of most of these deaths, and in 50% of such cases, SCD is the first manifestation of the ...
... Sudden cardiac death (SCD) is a major medical and public health concern responsible for 50% of cardiovascular deaths and as much as 15% to 20% of overall mortality. Coronary heart disease is the underlying cause of most of these deaths, and in 50% of such cases, SCD is the first manifestation 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.