Techniques for ventricular repolarization instability
... factors appear, they can lead to malignant arrhythmias potentially ending in SCD. Increased dispersion of the repolarization properties among different ventricular myocardial cells or regions has been identified as a characteristic of a vulnerable substrate [10]. Other factors can modulate the arrhy ...
... factors appear, they can lead to malignant arrhythmias potentially ending in SCD. Increased dispersion of the repolarization properties among different ventricular myocardial cells or regions has been identified as a characteristic of a vulnerable substrate [10]. Other factors can modulate the arrhy ...
Mathematical Modeling of Electrocardiograms: A Numerical Study
... (see e.g. Sect. 4.6 in Lines et al.,32 and Sundnes et al.51) have shown realistic 12-lead ECG simulations. The main ingredients of our mathematical ECG model are standard (see e.g. Lines et al.,32 Pullan et al.,44 Sundnes et al.51): bidomain equations and phenomenological cell model for the heart, a ...
... (see e.g. Sect. 4.6 in Lines et al.,32 and Sundnes et al.51) have shown realistic 12-lead ECG simulations. The main ingredients of our mathematical ECG model are standard (see e.g. Lines et al.,32 Pullan et al.,44 Sundnes et al.51): bidomain equations and phenomenological cell model for the heart, a ...
Assessing Symptom Burden and Health-Related Quality of Life
... MOS 36-item Short-Form Health Survey ...
... MOS 36-item Short-Form Health Survey ...
as a PDF
... LV-epi and RVA-BiV) caused by increased external work relative to normal myocardium. ...
... LV-epi and RVA-BiV) caused by increased external work relative to normal myocardium. ...
Permanent Pacemaker
... the battery level, programmed mode and low rate, diagnostics such as percentage pacing, lead impedance trends and any significant observations or alerts. o Threshold testings and parameter adjustments can be performed using the pacemaker programmer. o Dual chamber pacing is useful for many rhythm di ...
... the battery level, programmed mode and low rate, diagnostics such as percentage pacing, lead impedance trends and any significant observations or alerts. o Threshold testings and parameter adjustments can be performed using the pacemaker programmer. o Dual chamber pacing is useful for many rhythm di ...
Single-site ventricular and biventricular pacing
... LV-epi and RVA-BiV) caused by increased external work relative to normal myocardium. ...
... LV-epi and RVA-BiV) caused by increased external work relative to normal myocardium. ...
Relationship Between Sinus Rhythm Activation and the
... is disarray of gap-junctional intercellular connections that extends the full thickness from the infarct to the surface of the heart.8 Because these substrate properties persist regardless of rhythm type, they may affect electrical conduction at the isthmus area during sinus rhythm. The hypothesis t ...
... is disarray of gap-junctional intercellular connections that extends the full thickness from the infarct to the surface of the heart.8 Because these substrate properties persist regardless of rhythm type, they may affect electrical conduction at the isthmus area during sinus rhythm. The hypothesis t ...
Passamani-2014-Temporal profile and mechanisms
... chronic heart failure, using indirect methodological approaches such as measuring plasma catecholamine levels [10], heart rate variability (HRV) and cardiovagal baroreflex sensitivity [11]. Little information about the time course and contributing mechanisms of sympathetic changes immediately follow ...
... chronic heart failure, using indirect methodological approaches such as measuring plasma catecholamine levels [10], heart rate variability (HRV) and cardiovagal baroreflex sensitivity [11]. Little information about the time course and contributing mechanisms of sympathetic changes immediately follow ...
Surgical Treatment of Atrial Fibrillation Through Isolation of the Left
... A prospective randomized study was carried out in patients with chronic rheumatic heart disease, persistent atrial fibrillation, and also mitral valvular impairment indicating surgical treatment. All patients previously recruited were carefully instructed in regard to the characteristics and objecti ...
... A prospective randomized study was carried out in patients with chronic rheumatic heart disease, persistent atrial fibrillation, and also mitral valvular impairment indicating surgical treatment. All patients previously recruited were carefully instructed in regard to the characteristics and objecti ...
A survey of German centres performing invasive electrophysiology
... most common arrhythmia invasively treated. An increasing demand for catheter ablation is likely, but training opportunities are limited. Women are clearly underrepresented. A co-operation of higher and lower volume electrophysiology centres may be necessary for training purposes. ...
... most common arrhythmia invasively treated. An increasing demand for catheter ablation is likely, but training opportunities are limited. Women are clearly underrepresented. A co-operation of higher and lower volume electrophysiology centres may be necessary for training purposes. ...
Eur Heart J-2005--1115-40
... symptoms may be used to classify the severity of heart failure and should be used to monitor the effects of therapy. However, as noted subsequently, symptoms cannot guide the optimal titration of neurohormonal blockers. The New York Heart Association (NYHA) classification is in widespread use (Table ...
... symptoms may be used to classify the severity of heart failure and should be used to monitor the effects of therapy. However, as noted subsequently, symptoms cannot guide the optimal titration of neurohormonal blockers. The New York Heart Association (NYHA) classification is in widespread use (Table ...
The Mechanism of Adaptation of Left Atrial Stretch Congestive Heart
... under warm mineral oil, and desheathed. Slips of the vagus were cut centrally and placed upon bipolar platinumiridium recording electrodes. The neural activity was appropriately amplified and the fiber continuously split until a recording was obtained from a single unit. Each receptor was identified ...
... under warm mineral oil, and desheathed. Slips of the vagus were cut centrally and placed upon bipolar platinumiridium recording electrodes. The neural activity was appropriately amplified and the fiber continuously split until a recording was obtained from a single unit. Each receptor was identified ...
The heart requires glycerol as an energy substrate through
... studied. Several reports showed that a moderate expression of aquaporin 7 (AQP7), a member of the aquaglyceroporin family that is permeated by glycerol and water, is observed in heart tissue. However, the functional role of cardiac AQP7 is not clear. The aim of this study was to investigate the sign ...
... studied. Several reports showed that a moderate expression of aquaporin 7 (AQP7), a member of the aquaglyceroporin family that is permeated by glycerol and water, is observed in heart tissue. However, the functional role of cardiac AQP7 is not clear. The aim of this study was to investigate the sign ...
Mechanically induced sudden death in chest wall impact
... heart is known as commotio cordis. Although once thought rare, an increasing number of these events have been reported. Indeed, a significant percentage of deaths on the athletic field are due to chest wall impact. Commotio cordis is most frequently observed in young individuals (age 4–18 years), but ...
... heart is known as commotio cordis. Although once thought rare, an increasing number of these events have been reported. Indeed, a significant percentage of deaths on the athletic field are due to chest wall impact. Commotio cordis is most frequently observed in young individuals (age 4–18 years), but ...
Role of trans-thoracic impedance and current for a successful
... The thesis examines the effect of transthoracic impedance (TTI) on the success rate of synchronized cardioversion, using retrospective analysis on clinical data and numerical model. Synchronized electrical cardioversion is a treatment that applies an electrical pulse to the cardiac tissue to restore ...
... The thesis examines the effect of transthoracic impedance (TTI) on the success rate of synchronized cardioversion, using retrospective analysis on clinical data and numerical model. Synchronized electrical cardioversion is a treatment that applies an electrical pulse to the cardiac tissue to restore ...
A Novel Time-domain Diagnostic Method for ECG Signal System
... Cardiovascular disease (CVD) is the major threatening disease as well as one of the three leading factors of mortality in the world [10]. Generally speaking, patients with heart problems need to undergo a cardiac test at the hospital by using the electrocardiographic devices or instruments. An elect ...
... Cardiovascular disease (CVD) is the major threatening disease as well as one of the three leading factors of mortality in the world [10]. Generally speaking, patients with heart problems need to undergo a cardiac test at the hospital by using the electrocardiographic devices or instruments. An elect ...
PACES/HRS Expert Consensus Statement on the Management of
... without symptoms. In response to recently published literature regarding patients with WPW, the Pediatric and Congenital Electrophysiology Society (PACES) in conjunction with the Heart Rhythm Society (HRS) created a writing committee to provide helpful clinical guidelines for asymptomatic patients w ...
... without symptoms. In response to recently published literature regarding patients with WPW, the Pediatric and Congenital Electrophysiology Society (PACES) in conjunction with the Heart Rhythm Society (HRS) created a writing committee to provide helpful clinical guidelines for asymptomatic patients w ...
Regional Distribution of the Molecular Forms of Acetylcholinesterase
... right a trial appendage >interatrial septum > left atrial appendage=right ventricle=interventricular septum > left ventricle. Velocity sedimentation in sucrose gradients of extracts from selected cardiac areas showed that four molecular forms were present in all areas but that the proportions of the ...
... right a trial appendage >interatrial septum > left atrial appendage=right ventricle=interventricular septum > left ventricle. Velocity sedimentation in sucrose gradients of extracts from selected cardiac areas showed that four molecular forms were present in all areas but that the proportions of the ...
An adaptive singular spectrum analysis approach to murmur
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
Author`s Accepted Manuscript - HRS
... service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered whi ...
... service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered whi ...
Full-Text PDF
... Doxorubicin (DOX) belongs to the family of anthracyclines, and has been used to against cancer since late 1960s. It is the most effective anticancer drugs. However, studies of cardiotoxic effects of DOX have been reported [1,2]. Therefore, chemotherapy with DOX is limited by its cardiotoxicity. The ...
... Doxorubicin (DOX) belongs to the family of anthracyclines, and has been used to against cancer since late 1960s. It is the most effective anticancer drugs. However, studies of cardiotoxic effects of DOX have been reported [1,2]. Therefore, chemotherapy with DOX is limited by its cardiotoxicity. The ...
Negative Inotropic and Chronotropic Effects of Oxytocin
... Abstract—We have previously shown that oxytocin receptors are present in the heart and that perfusion of isolated rat hearts with oxytocin results in decreased cardiac flow rate and bradycardia. The mechanisms involved in the negative inotropic and chronotropic effects of oxytocin were investigated ...
... Abstract—We have previously shown that oxytocin receptors are present in the heart and that perfusion of isolated rat hearts with oxytocin results in decreased cardiac flow rate and bradycardia. The mechanisms involved in the negative inotropic and chronotropic effects of oxytocin were investigated ...
No Slide Title
... • An impulse begins in the sinoatrial node (also called the pacemaker) and travels through the atria to the atrioventricular node and on through the ventricles. ...
... • An impulse begins in the sinoatrial node (also called the pacemaker) and travels through the atria to the atrioventricular node and on through the ventricles. ...
Prevention of atrial fibrillation following cardiac surgery: Basis for a
... idiopathic lone AF (Thamilarasan & Klein, 1999; Sitges et al., 2007). In addition, left atrial size reduction improves sinus rhythm conversion rate after radiofrequency ablation for ...
... idiopathic lone AF (Thamilarasan & Klein, 1999; Sitges et al., 2007). In addition, left atrial size reduction improves sinus rhythm conversion rate after radiofrequency ablation for ...
Six Lead ECG
... The cardiac cycle involves a sequential contraction of the atria and the ventricles. These contractions are triggered by the coordinated electrical activity of the myocardial cells in the heart. The electrical currents produced by the heart are large and can be recorded through electrodes placed on ...
... The cardiac cycle involves a sequential contraction of the atria and the ventricles. These contractions are triggered by the coordinated electrical activity of the myocardial cells in the heart. The electrical currents produced by the heart are large and can be recorded through electrodes placed on ...