The Dissection of the Atrioventricular Node
... The chordae tendineae of the medial part of the anterior tricuspid leaflet are now cut and these portions of leaflet detached at their ring base and from the pars membranacea and central fibrous body (fig. iB). The atrial endocardium is removed from the region bounded by the eustachian valve, the co ...
... The chordae tendineae of the medial part of the anterior tricuspid leaflet are now cut and these portions of leaflet detached at their ring base and from the pars membranacea and central fibrous body (fig. iB). The atrial endocardium is removed from the region bounded by the eustachian valve, the co ...
Torsade de pointes: the clinical considerations
... rate of tachycardia is usually 200 – 250 beats/min (range: 150 – 300 beats/min). In most, but no all, cases torsade de pointes is preceded by a characteristic sequence of a long RR interval of the dominant cycle followed by a short extrasystolic interval with premature depolarization interrupting th ...
... rate of tachycardia is usually 200 – 250 beats/min (range: 150 – 300 beats/min). In most, but no all, cases torsade de pointes is preceded by a characteristic sequence of a long RR interval of the dominant cycle followed by a short extrasystolic interval with premature depolarization interrupting th ...
Paper
... framework also improved the model checking efficiency without losing accuracy. The heart model abstraction enables model checking for more complex systems and the model refinement enables us to check more complex properties. In contrast to the CEGAR framework proposed by Clarke et al., the model abs ...
... framework also improved the model checking efficiency without losing accuracy. The heart model abstraction enables model checking for more complex systems and the model refinement enables us to check more complex properties. In contrast to the CEGAR framework proposed by Clarke et al., the model abs ...
Patient , s Guide - Deutsches Herzzentrum München
... to numerous other areas of medical specialisation over the decades. Cardiovascular disease concerns us all. It is still the most frequent cause of death in industrialised nations. The number of people suffering from heart disease has been on the increase for years, creating a growing need for care p ...
... to numerous other areas of medical specialisation over the decades. Cardiovascular disease concerns us all. It is still the most frequent cause of death in industrialised nations. The number of people suffering from heart disease has been on the increase for years, creating a growing need for care p ...
Atrial fibrillation and physical activity
... of Canadian adults in that survey met or exceeded the World Health Organization’s recommendation3 for leisuretime PA. In contrast, increasing numbers of people are participating in endurance sports4 and extreme sports.5 A recent survey in the United States (US) comparing cohorts from 1988 to 20106 s ...
... of Canadian adults in that survey met or exceeded the World Health Organization’s recommendation3 for leisuretime PA. In contrast, increasing numbers of people are participating in endurance sports4 and extreme sports.5 A recent survey in the United States (US) comparing cohorts from 1988 to 20106 s ...
Heart PPT - McCreary County Schools
... • Pacemaker – A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias. Arrhythmias are problems with the rate or rh ...
... • Pacemaker – A pacemaker is a small device that's placed in the chest or abdomen to help control abnormal heart rhythms. This device uses low-energy electrical pulses to prompt the heart to beat at a normal rate. Pacemakers are used to treat arrhythmias. Arrhythmias are problems with the rate or rh ...
Morphology and Electrophysiology of the Mammalian
... (9,103). Apart from the fact that the AV node normally forms the only link between atria and the ventricular specialized conduction system, three different functional aspects may be distinguished. 1) The AV node conducts the impulse slowly, thereby causing a delay between activation of atria and ven ...
... (9,103). Apart from the fact that the AV node normally forms the only link between atria and the ventricular specialized conduction system, three different functional aspects may be distinguished. 1) The AV node conducts the impulse slowly, thereby causing a delay between activation of atria and ven ...
Electrocardiography - Frank`s Hospital Workshop
... heart muscle "depolarises" during each heart beat. At rest, each heart muscle cell has a charge across its outer wall, or cell membrane. Reducing this charge towards zero is called de-polarisation, which activates the mechanisms in the cell that cause it to contract. During each heartbeat a healthy ...
... heart muscle "depolarises" during each heart beat. At rest, each heart muscle cell has a charge across its outer wall, or cell membrane. Reducing this charge towards zero is called de-polarisation, which activates the mechanisms in the cell that cause it to contract. During each heartbeat a healthy ...
Heart failure epidemiology and novel treatments in Japan: facts and
... Although there have been no population-based studies that precisely examined the prevalence of heart failure in Japan, one report estimated the number of Japanese outpatients with left ventricular dysfunction was 979, 000 (0.8% of total population), which was projected to increase gradually as the p ...
... Although there have been no population-based studies that precisely examined the prevalence of heart failure in Japan, one report estimated the number of Japanese outpatients with left ventricular dysfunction was 979, 000 (0.8% of total population), which was projected to increase gradually as the p ...
Ch. 20
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
Table of Contents - International College of Health Sciences
... 1- Understand wandering atrial pacemaker OBJECTIVES 2- Understand premature atrial contractions 3- Understand non-conductive pac’s 4- Understand paroxysmal atrial tachycardia 5- Understand atrial flutter 6- Understand atrial fibrillation TOPIC (S) Atrial Arrhythmias LEARNING Power Point Presentation ...
... 1- Understand wandering atrial pacemaker OBJECTIVES 2- Understand premature atrial contractions 3- Understand non-conductive pac’s 4- Understand paroxysmal atrial tachycardia 5- Understand atrial flutter 6- Understand atrial fibrillation TOPIC (S) Atrial Arrhythmias LEARNING Power Point Presentation ...
Metabolic Cardiology
... Congestive heart failure (CHF) and dilated cardiomyopathy are life-threatening conditions in which the heart muscle is so weak that effective pulsatile action is compromised. Pulmonary vascular congestion and swelling in the lower extremities as well as in the liver and lining of the gastrointestina ...
... Congestive heart failure (CHF) and dilated cardiomyopathy are life-threatening conditions in which the heart muscle is so weak that effective pulsatile action is compromised. Pulmonary vascular congestion and swelling in the lower extremities as well as in the liver and lining of the gastrointestina ...
electrocardiographic diagnosis of left ventricular hypertrophy
... INTRODUCTION There is an increased risk of cardiac morbidity and mortality associated with left ventricular hypertrophy (LVH),1-4 so its detection is of major importance, especially for individuals with hypertension or other cardiovascular risk factors. LVH is no longer considered an adaptive proces ...
... INTRODUCTION There is an increased risk of cardiac morbidity and mortality associated with left ventricular hypertrophy (LVH),1-4 so its detection is of major importance, especially for individuals with hypertension or other cardiovascular risk factors. LVH is no longer considered an adaptive proces ...
Chapter 3
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
Chapter 3
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
... • 100 msec delay at AV node due to smaller diameter fibersallows atria to fully contract filling ventricles before ventricles contract • In 50 msec excitation spreads through both ventricles simultaneously ...
rate versus rhythm control in atrial fibrillation
... change but to control the rate only)4. AF often presents with an abnormally fast heart rate, even at rest. Such patients are usually symptomatic and the heart rate must be controlled. A typical heart rate goal is below 100 beats per minute, but the optimal heart rate depends on patient subpopulation ...
... change but to control the rate only)4. AF often presents with an abnormally fast heart rate, even at rest. Such patients are usually symptomatic and the heart rate must be controlled. A typical heart rate goal is below 100 beats per minute, but the optimal heart rate depends on patient subpopulation ...
Role of the Posterior Left Atrium and Pulmonary Veins
... optical mapping studies of isolated hearts2 and during intraoperative mapping in patients.3 The shortest AF cycle lengths are found in the posterior LA in dogs4,5 and patients with chronic AF.6 Cryoablation in the posterior LA has been shown to terminate experimentally induced AF.4 Finally, the role ...
... optical mapping studies of isolated hearts2 and during intraoperative mapping in patients.3 The shortest AF cycle lengths are found in the posterior LA in dogs4,5 and patients with chronic AF.6 Cryoablation in the posterior LA has been shown to terminate experimentally induced AF.4 Finally, the role ...
Heart Block and Prolonged Q-Tc Interval Following Muscle Relaxant
... previously, reversal of muscle relaxation may be associated with rhythm disturbances ranging from mild bradycardia to asystole.20 In addition, reversal of the muscle relaxant may be associated with cardiac conduction changes ranging from Q-Tc interval changes to heart block.1 Although the patient de ...
... previously, reversal of muscle relaxation may be associated with rhythm disturbances ranging from mild bradycardia to asystole.20 In addition, reversal of the muscle relaxant may be associated with cardiac conduction changes ranging from Q-Tc interval changes to heart block.1 Although the patient de ...
Modifying Effects of Resting Heart Rate on the Association of Binge
... mortality risk, the combined effect of these two risk factors and their interaction has rarely been studied. This study examined the association between binge drinking and cardiovascular and all-cause mortality and evaluated the potential modifying effect on this association of resting heart rate in ...
... mortality risk, the combined effect of these two risk factors and their interaction has rarely been studied. This study examined the association between binge drinking and cardiovascular and all-cause mortality and evaluated the potential modifying effect on this association of resting heart rate in ...
Gene Electro Transfer of Plasmid Encoding Vascular Endothelial
... facilitate intracellular delivery of molecules [5, 6]. The controlled application of electric pulses facilitates the entry of DNA by permeabilizing the cell membrane. This approach has been successfully used in vivo to deliver plasmid DNA to skeletal muscle [6] and to cardiac tissue [7, 8]. Previous ...
... facilitate intracellular delivery of molecules [5, 6]. The controlled application of electric pulses facilitates the entry of DNA by permeabilizing the cell membrane. This approach has been successfully used in vivo to deliver plasmid DNA to skeletal muscle [6] and to cardiac tissue [7, 8]. Previous ...
Increased cardiac work provides a link between systemic
... However, this was associated with an increase in cardiac work at age 21 month, which has previously demonstrated fibrosis and cell death. The interplay between these factors may be the mechanism for progression to failure in this animal model. ...
... However, this was associated with an increase in cardiac work at age 21 month, which has previously demonstrated fibrosis and cell death. The interplay between these factors may be the mechanism for progression to failure in this animal model. ...
Doping and effects of anabolic androgenic steroids on the heart: histological,
... The end systolic dimensions (ESD) were significantly smaller in group 1 (2.6 ± 0.29), as compared to group 2 (2.9 ± 0.11) and group 3 (3.06 ± 0.08), at P < 0.0001. The end diastolic dimensions (EDD) were significantly smaller in group 1 (4.6 ± 0.3), as compared to group 2 (5 ± 0.1) and group 3 (5.06 ...
... The end systolic dimensions (ESD) were significantly smaller in group 1 (2.6 ± 0.29), as compared to group 2 (2.9 ± 0.11) and group 3 (3.06 ± 0.08), at P < 0.0001. The end diastolic dimensions (EDD) were significantly smaller in group 1 (4.6 ± 0.3), as compared to group 2 (5 ± 0.1) and group 3 (5.06 ...
HRS/EHRA/APHRS Expert Consensus Statement on the Diagnosis
... The arrhythmic events are due to runs of torsades de pointes VT, which, according to its duration, produces syncope, cardiac arrest, and—when it deteriorates into VF —sudden death. Among untreated patients, the natural history is represented by the occurrence of a number of syncopal episodes, eventu ...
... The arrhythmic events are due to runs of torsades de pointes VT, which, according to its duration, produces syncope, cardiac arrest, and—when it deteriorates into VF —sudden death. Among untreated patients, the natural history is represented by the occurrence of a number of syncopal episodes, eventu ...
Myosin Types and Fiber Types in Cardiac Muscle I . Ventricular
... we have also found that cardiac isomyosins may be variably distributed among cardiac muscle fibers : fiber type heterogeneity can thus be demonstrated within both atrial and ventricular myocardium and even within the conduction tissue . Here, we report immunohistochemical evidence for myosin polymor ...
... we have also found that cardiac isomyosins may be variably distributed among cardiac muscle fibers : fiber type heterogeneity can thus be demonstrated within both atrial and ventricular myocardium and even within the conduction tissue . Here, we report immunohistochemical evidence for myosin polymor ...