Diagnosis and ablation of atypical atrial tachycardia and flutter
... catheter ablation of atrial fibrillation varies depending on the extent of ablation in the left atrium. When the ablation strategy is limited to ostial ablation to isolate the pulmonary veins, atrial tachycardias are unusual, occurring in only 1% to 2% of patients.1– 4 In contrast, when pulmonary ve ...
... catheter ablation of atrial fibrillation varies depending on the extent of ablation in the left atrium. When the ablation strategy is limited to ostial ablation to isolate the pulmonary veins, atrial tachycardias are unusual, occurring in only 1% to 2% of patients.1– 4 In contrast, when pulmonary ve ...
Obesity and atrial electrical and mechanical remodeling
... The study provided scope for the notion of weight management at potentially altering the course of the disease or curbing its epidemic progression. Obesity and left atrial size In the clinical setting, abnormalities in LA size are often observed in overweight and obese patients. Frequent uncertaint ...
... The study provided scope for the notion of weight management at potentially altering the course of the disease or curbing its epidemic progression. Obesity and left atrial size In the clinical setting, abnormalities in LA size are often observed in overweight and obese patients. Frequent uncertaint ...
Left Ventricular Diastolic Mechanical Dyssynchrony and Associated
... Figure 1. Tissue Doppler velocity curves in the 4-chamber view. Right, Tissue velocity curves. Left, Color tissue Doppler (top) and corresponding gray-scale images (bottom). Samples (5 mm) were placed during the same cardiac cycles at the mitral annulus, basal interventricular septum, midlateral LV ...
... Figure 1. Tissue Doppler velocity curves in the 4-chamber view. Right, Tissue velocity curves. Left, Color tissue Doppler (top) and corresponding gray-scale images (bottom). Samples (5 mm) were placed during the same cardiac cycles at the mitral annulus, basal interventricular septum, midlateral LV ...
QS- and QR-Pattern in Leads V3 and V4 in
... the initial R wave was present, ill only 8 per cent of the patients with infarction and in1 56 per cent of the patients without infarction. The greatest difference between the QRS patterns in the infarction and nioniinfarction groups was present ill lead V.,; the initial R wave was present ill 12 pe ...
... the initial R wave was present, ill only 8 per cent of the patients with infarction and in1 56 per cent of the patients without infarction. The greatest difference between the QRS patterns in the infarction and nioniinfarction groups was present ill lead V.,; the initial R wave was present ill 12 pe ...
Hypertrophic Cardiomyopathy: A Systematic Review
... However, not all individuals harboring a genetic defect will express the clinical features of HCM, such as LVH by echocardiography, abnormal ECG results, or cardiac symptoms.3,9,13,25,29,51-53 Molecular genetic studies have, in fact, demonstrated that there is no minimum wall thickness required for ...
... However, not all individuals harboring a genetic defect will express the clinical features of HCM, such as LVH by echocardiography, abnormal ECG results, or cardiac symptoms.3,9,13,25,29,51-53 Molecular genetic studies have, in fact, demonstrated that there is no minimum wall thickness required for ...
and the role of cardiac resynchronization therapy
... is quickly gaining interest due to the rapid progress of cardiac resynchronization therapy (CRT). Abnormal impulse conduction can occur due to disturbed function of the ventricular rapid conduction ("Purkinje") system and/or due to pacing the ventricles. In this chapter, we will review the literatur ...
... is quickly gaining interest due to the rapid progress of cardiac resynchronization therapy (CRT). Abnormal impulse conduction can occur due to disturbed function of the ventricular rapid conduction ("Purkinje") system and/or due to pacing the ventricles. In this chapter, we will review the literatur ...
MPS450 Multiparameter Simulator Operators Manual
... 2006 Fluke Corporation, All rights reserved. Printed in USA All product names are trademarks of their respective companies. ...
... 2006 Fluke Corporation, All rights reserved. Printed in USA All product names are trademarks of their respective companies. ...
Subclinical Atrial Fibrillation and the Risk of Stroke
... On the basis of previously reported data, we estimated that the annual rate of stroke or systemic embolism in patients 65 years of age or older who have hypertension and who have received a pacemaker would be approximately 1%.20,21 We then estimated that with enrollment of 2500 patients, the study w ...
... On the basis of previously reported data, we estimated that the annual rate of stroke or systemic embolism in patients 65 years of age or older who have hypertension and who have received a pacemaker would be approximately 1%.20,21 We then estimated that with enrollment of 2500 patients, the study w ...
Infarct Size and Myocardial Function
... The segmented scar sequence ‐ inversion recovery fast gradient echo, IR_FGRE, is a well documented sequence for scar determination, however, the sequence requires regular heart rhythm and breath holding for good imaging. We showed that a single shot scar sequence ‐ steady state ...
... The segmented scar sequence ‐ inversion recovery fast gradient echo, IR_FGRE, is a well documented sequence for scar determination, however, the sequence requires regular heart rhythm and breath holding for good imaging. We showed that a single shot scar sequence ‐ steady state ...
? FAQs Epipen®
... the risk The information contained on this website is intended for New Zealand healthcare professionals only and is intended to be used for educational purposes only. It does not cover all available information. EpiPen (adrenaline 300mcg/0.3ml) and EpiPen Jr (adrenaline 150mcg/0.3ml) Auto-Injector. ...
... the risk The information contained on this website is intended for New Zealand healthcare professionals only and is intended to be used for educational purposes only. It does not cover all available information. EpiPen (adrenaline 300mcg/0.3ml) and EpiPen Jr (adrenaline 150mcg/0.3ml) Auto-Injector. ...
Analysis of intrinsic cardiac neuron activity in relation to
... Atrial fibrillation is the most frequent sustained rhythm disorder in humans and often leads to severe complications such as heart failure and stroke. A neurogenic mechanism of atrial fibrillation has been hypothesized. Tachyarrhythmia induction by mediastinal nerve stimulation has been proposed as ...
... Atrial fibrillation is the most frequent sustained rhythm disorder in humans and often leads to severe complications such as heart failure and stroke. A neurogenic mechanism of atrial fibrillation has been hypothesized. Tachyarrhythmia induction by mediastinal nerve stimulation has been proposed as ...
2003 The European Society of Cardiology
... Myocardial infarction can be recognized when blood levels of biomarkers are increased in the clinical setting of acute myocardial ischaemia. The preferred biomarker for myocardial damage is cardiac troponin (I or T) which has nearly absolute myocardial tissue specificity, as well as high sensitivity ...
... Myocardial infarction can be recognized when blood levels of biomarkers are increased in the clinical setting of acute myocardial ischaemia. The preferred biomarker for myocardial damage is cardiac troponin (I or T) which has nearly absolute myocardial tissue specificity, as well as high sensitivity ...
Management of acute myocardial infarction in patients presenting
... Myocardial infarction can be recognized when blood levels of biomarkers are increased in the clinical setting of acute myocardial ischaemia. The preferred biomarker for myocardial damage is cardiac troponin (I or T) which has nearly absolute myocardial tissue specificity, as well as high sensitivity ...
... Myocardial infarction can be recognized when blood levels of biomarkers are increased in the clinical setting of acute myocardial ischaemia. The preferred biomarker for myocardial damage is cardiac troponin (I or T) which has nearly absolute myocardial tissue specificity, as well as high sensitivity ...
MEANS ECG Physicians` Manual
... inaccurate but flexible and creative, a computer precise and obedient but rigid in its operation. There are several specific reasons why ECG criteria in the program may differ from the conventional ones. First, there is no uniformity of criteria in the literature. Then, criteria may be based on inac ...
... inaccurate but flexible and creative, a computer precise and obedient but rigid in its operation. There are several specific reasons why ECG criteria in the program may differ from the conventional ones. First, there is no uniformity of criteria in the literature. Then, criteria may be based on inac ...
Wien, 28 - Repository of the LBI-HTA
... that are designed to have the same function as traditional cardiac pacemakers, but are miniaturized and can be implanted entirely inside the right ventricle of the heart. The expected benefit is the avoidance of complications associated with the placement of an external pulse generator in a surgical ...
... that are designed to have the same function as traditional cardiac pacemakers, but are miniaturized and can be implanted entirely inside the right ventricle of the heart. The expected benefit is the avoidance of complications associated with the placement of an external pulse generator in a surgical ...
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 ...
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 ..................................................................................................... ...
Characterization of Atrial Repolarization Alternans and
... The ability of atrial unipolar depolarization and repolarization parameters (i.e. activation time and repolarization alternans) to predict the imminence of atrial fibrillation initiation by rapid pacing was evaluated at baseline (i.e. before any burst-pacing induced remodeling occurred). A chronic f ...
... The ability of atrial unipolar depolarization and repolarization parameters (i.e. activation time and repolarization alternans) to predict the imminence of atrial fibrillation initiation by rapid pacing was evaluated at baseline (i.e. before any burst-pacing induced remodeling occurred). A chronic f ...
Atrial Septal Defect and Atrial Fibrillation: The Known and Unknown
... ASDs, regardless of age, pulmonary arterial pressure (PAP) or pre-operative functional class.22,83-84 On the other hand, the incidence of atrial tachyarrhythmias (most notably AF and AFL) is significantly age-dependent, with a higher incidence of AF and AFL among patients undergoing surgical closure ...
... ASDs, regardless of age, pulmonary arterial pressure (PAP) or pre-operative functional class.22,83-84 On the other hand, the incidence of atrial tachyarrhythmias (most notably AF and AFL) is significantly age-dependent, with a higher incidence of AF and AFL among patients undergoing surgical closure ...
for Cardiopulmonary Resuscitation and Emergency Cardiovascular
... breathing is present, bystanders often misinterpret agonal gasps or abnormal breathing as normal breathing. This erroneous information can result in failure by dispatchers to identify potential cardiac arrest and failure to instruct bystanders to initiate CPR immediately.13–18 An important considera ...
... breathing is present, bystanders often misinterpret agonal gasps or abnormal breathing as normal breathing. This erroneous information can result in failure by dispatchers to identify potential cardiac arrest and failure to instruct bystanders to initiate CPR immediately.13–18 An important considera ...
for Cardiopulmonary Resuscitation and Emergency Cardiovascular
... breathing is present, bystanders often misinterpret agonal gasps or abnormal breathing as normal breathing. This erroneous information can result in failure by dispatchers to identify potential cardiac arrest and failure to instruct bystanders to initiate CPR immediately.13–18 An important considera ...
... breathing is present, bystanders often misinterpret agonal gasps or abnormal breathing as normal breathing. This erroneous information can result in failure by dispatchers to identify potential cardiac arrest and failure to instruct bystanders to initiate CPR immediately.13–18 An important considera ...
Atrial remodeling due to atrial tachycardia and heart failure
... of patients with chronic AF undergoing surgery. At that time, these findings were interpreted as an important cause of AF in these patients. However, in 1995 two independent experimental studies first denominated changes in atrial electrophysiology as a consequence of AF. Wijffels et al. demonstrate ...
... of patients with chronic AF undergoing surgery. At that time, these findings were interpreted as an important cause of AF in these patients. However, in 1995 two independent experimental studies first denominated changes in atrial electrophysiology as a consequence of AF. Wijffels et al. demonstrate ...
When Calcium Turns Arrhythmogenic: Intracellular Calcium
... Linking Intracellular Ca2+ Handling to Ventricular Tachyarrhythmias in Hypertrophy and Heart Failure While resting intracellular Ca2+ remains normal in non-failing hypertrophied myocardium (7,14,18), alterations in Ca2+ handling are unlikely to cause arrhythmias directly, unless Ca2+ handling is fur ...
... Linking Intracellular Ca2+ Handling to Ventricular Tachyarrhythmias in Hypertrophy and Heart Failure While resting intracellular Ca2+ remains normal in non-failing hypertrophied myocardium (7,14,18), alterations in Ca2+ handling are unlikely to cause arrhythmias directly, unless Ca2+ handling is fur ...
ESC Guidelines for cardiac pacing and cardiac resynchronization
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
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.