article for Myocardial infarction
... myocardial infarction should not be used without further qualifications, whether in clinical practice, in the description of patient cohorts, or in population studies. Such qualifications should refer to the amount of myocardial cell loss (infarct size), to the circumstances leading to the infarct ( ...
... myocardial infarction should not be used without further qualifications, whether in clinical practice, in the description of patient cohorts, or in population studies. Such qualifications should refer to the amount of myocardial cell loss (infarct size), to the circumstances leading to the infarct ( ...
Myocardial ischaemia and the cardiac nervous system
... The intrinsic cardiac nervous system has been classically considered to contain only parasympathetic efferent postganglionic neurones which receive inputs from medullary parasympathetic efferent preganglionic neurones. In such a view, intrinsic cardiac ganglia act as simple relay stations of parasym ...
... The intrinsic cardiac nervous system has been classically considered to contain only parasympathetic efferent postganglionic neurones which receive inputs from medullary parasympathetic efferent preganglionic neurones. In such a view, intrinsic cardiac ganglia act as simple relay stations of parasym ...
Analysis and Applications of Monophasic Action Potentials in
... on the promotorship of this master thesis and granting me the freedom to choose my own direction in the research process. I also want to acknowledge the help of prof. dr. Roland Stroobandt. I have learnt a lot about cardiac electrophysiology during the many interesting discussions we have had in the ...
... on the promotorship of this master thesis and granting me the freedom to choose my own direction in the research process. I also want to acknowledge the help of prof. dr. Roland Stroobandt. I have learnt a lot about cardiac electrophysiology during the many interesting discussions we have had in the ...
Missing a Sub-pulmonary Ventricle: The Fontan Circulation
... some degree by nature-unrestricted flow from the heart to the aorta (if required: coarctectomy, Damus-Kaye-Stansel, Norwood repair), a well-balanced limited flow to the lungs (if required: pulmonary artery banding, shunt (modified BlalockTaussig, central), stent in duct), and unrestricted return of ...
... some degree by nature-unrestricted flow from the heart to the aorta (if required: coarctectomy, Damus-Kaye-Stansel, Norwood repair), a well-balanced limited flow to the lungs (if required: pulmonary artery banding, shunt (modified BlalockTaussig, central), stent in duct), and unrestricted return of ...
Acute Right Atrial and Ventricular Infarction
... studies on infarction of the anterior free wall of the right ventricle and found a reduction in the voltage of the R wave, or QS complexes, in the right epicardial and thoracic leads from V5R to V2 and V3, with signs of lesion (STsegment elevation), and epicardial ischemia (negative T wave). The dev ...
... studies on infarction of the anterior free wall of the right ventricle and found a reduction in the voltage of the R wave, or QS complexes, in the right epicardial and thoracic leads from V5R to V2 and V3, with signs of lesion (STsegment elevation), and epicardial ischemia (negative T wave). The dev ...
Differentiation of Muscarinic Receptors Mediating Negative
... ACh on cardiac function. Recent evidence also suggests that cardiomyocytes contain a smaller population of m1 receptors that could mediate stimulatory responses reported to occur with high concentrations of some muscarinic agonists (Gallo et al., 1993; Sharma et al., 1996). The receptor subtype pres ...
... ACh on cardiac function. Recent evidence also suggests that cardiomyocytes contain a smaller population of m1 receptors that could mediate stimulatory responses reported to occur with high concentrations of some muscarinic agonists (Gallo et al., 1993; Sharma et al., 1996). The receptor subtype pres ...
Effects of spontaneous myocardial oscillation on cardiac function
... was estimated as the appearance rate, defined as the ratio of the number of microscopic fields showing the capillary oscillation, to the total number of examined fields. Results: Up to 4 mmol/l of [Ca2’],, developed pressure and maximum rate of pressure rise significantly increased in a manner depen ...
... was estimated as the appearance rate, defined as the ratio of the number of microscopic fields showing the capillary oscillation, to the total number of examined fields. Results: Up to 4 mmol/l of [Ca2’],, developed pressure and maximum rate of pressure rise significantly increased in a manner depen ...
MITRAL REGURGITATION IN LEFT VENTRICULAR
... The heart pumps blood around the body. Its most important component is the left ventricle (LV) because it pumps freshly oxygenated blood out to the entire body. Heart failure is when a diseased heart cannot provide the body with enough blood flow. One treatment option for heart failure is the Left V ...
... The heart pumps blood around the body. Its most important component is the left ventricle (LV) because it pumps freshly oxygenated blood out to the entire body. Heart failure is when a diseased heart cannot provide the body with enough blood flow. One treatment option for heart failure is the Left V ...
PDF - Oxford Academic
... results are interpreted in terms of the known effects of neurohumors on resting potential and action potentials of molluscan hearts. We recorded compound membrane potentials of aplysiid ventricles extracellularly, using a single sucrose gap apparatus together with a force-displacement transducer to ...
... results are interpreted in terms of the known effects of neurohumors on resting potential and action potentials of molluscan hearts. We recorded compound membrane potentials of aplysiid ventricles extracellularly, using a single sucrose gap apparatus together with a force-displacement transducer to ...
Surgical Treatment of Atrial Fibrillation Through Isolation of the Left
... be an extremely important clinical problem. In patients with mitral valve disease and atrial fibrillation, surgical correction of valvular dysfunction does not usually result in a solution for arrhythmia, because the indices of recurrence are elevated, reaching up to 80% in 6 months 17-20. The Maze ...
... be an extremely important clinical problem. In patients with mitral valve disease and atrial fibrillation, surgical correction of valvular dysfunction does not usually result in a solution for arrhythmia, because the indices of recurrence are elevated, reaching up to 80% in 6 months 17-20. The Maze ...
Capítulo 1: Descrição geral da tese - RUN
... Patients who fulfilled the inclusion criteria were randomized for long duration high intensity interval exercise training or for control group (EXTG and CG, respectively). Randomization, performed by an independent investigator, was stratified, based on age (
... Patients who fulfilled the inclusion criteria were randomized for long duration high intensity interval exercise training or for control group (EXTG and CG, respectively). Randomization, performed by an independent investigator, was stratified, based on age (
Cardiac Contraction and Relaxation
... excitatory and conductive muscle fibers The atrial and ventricular types of muscle contract in much the same way as skeletal muscle except that the duration of contraction is much longer ...
... excitatory and conductive muscle fibers The atrial and ventricular types of muscle contract in much the same way as skeletal muscle except that the duration of contraction is much longer ...
Left Ventricular Volume and Function Assessment: A Comparison
... a pivotal role in assessing the LV systolic function, mainly by calculating the LVEF, and is as such deemed the most widely employed method. Cardiac catheterism and radionucleotide ventriculography have been accepted as diagnostic methods, but they have such limitations as invasiveness, high cost, a ...
... a pivotal role in assessing the LV systolic function, mainly by calculating the LVEF, and is as such deemed the most widely employed method. Cardiac catheterism and radionucleotide ventriculography have been accepted as diagnostic methods, but they have such limitations as invasiveness, high cost, a ...
Left Ventricular Volume and Function Assessment: A Comparison
... a pivotal role in assessing the LV systolic function, mainly by calculating the LVEF, and is as such deemed the most widely employed method. Cardiac catheterism and radionucleotide ventriculography have been accepted as diagnostic methods, but they have such limitations as invasiveness, high cost, a ...
... a pivotal role in assessing the LV systolic function, mainly by calculating the LVEF, and is as such deemed the most widely employed method. Cardiac catheterism and radionucleotide ventriculography have been accepted as diagnostic methods, but they have such limitations as invasiveness, high cost, a ...
systolic murmurs in children - Archives of Disease in Childhood
... outlet from the ventricles into the great vessels, nature or its clinical significance. The same holds would be that the individuals of a family have a true for the other sites of maximal intensity as can be seen from Table 8. similar anatomical cardiac structure. Similarly, the intensity itself was ...
... outlet from the ventricles into the great vessels, nature or its clinical significance. The same holds would be that the individuals of a family have a true for the other sites of maximal intensity as can be seen from Table 8. similar anatomical cardiac structure. Similarly, the intensity itself was ...
Atrial Fibrillation - George Washington University School of Medicine
... cause mechanical dysfunction of the atrium.27 Restoration of sinus rhythm is generally associated with the normalization of function over a period of two to four weeks.28 Possibly because of the delayed recovery of atrial mechanical function, the risk of thromboembolism posed by atrial fibrillation ...
... cause mechanical dysfunction of the atrium.27 Restoration of sinus rhythm is generally associated with the normalization of function over a period of two to four weeks.28 Possibly because of the delayed recovery of atrial mechanical function, the risk of thromboembolism posed by atrial fibrillation ...
Primary Prevention ICD / CRT Task Force Report
... References .......................................................................................................................48 ...
... References .......................................................................................................................48 ...
Prevention of atrial fibrillation following cardiac surgery: Basis for a
... link between AF and myocardial oxidative processes, since the latter may contribute to atrial remodelling (Korantzopoulos et al., 2003; Van Wagoner, 2003). Oxidative stress triggers proinflammatory signalling pathways that activate NF-κB and AP-1 transcription factors (Bowie & O'Neill, 2000). Marked ...
... link between AF and myocardial oxidative processes, since the latter may contribute to atrial remodelling (Korantzopoulos et al., 2003; Van Wagoner, 2003). Oxidative stress triggers proinflammatory signalling pathways that activate NF-κB and AP-1 transcription factors (Bowie & O'Neill, 2000). Marked ...
Antiarrhythmic Drugs - LSU School of Medicine
... for nonexperts—the practitioners, trainees, and students—who are most often called upon to make decisions regarding actual patients with cardiac arrhythmias. The book attempts to set out a framework for understanding antiarrhythmic drugs: how they work, what they actually do to improve (or worsen) t ...
... for nonexperts—the practitioners, trainees, and students—who are most often called upon to make decisions regarding actual patients with cardiac arrhythmias. The book attempts to set out a framework for understanding antiarrhythmic drugs: how they work, what they actually do to improve (or worsen) t ...
University of Central Florida
... early defibrillation to the victim of SCA. Recognition of early warning signs, such as chest pains and discomfort before collapse, and shortness of breath, as well as the availability of an AED and the speed with which defibrillation is performed are major components for a successful resuscitation a ...
... early defibrillation to the victim of SCA. Recognition of early warning signs, such as chest pains and discomfort before collapse, and shortness of breath, as well as the availability of an AED and the speed with which defibrillation is performed are major components for a successful resuscitation a ...
Total Anomalous Pulmonary Venous Return
... Better outcomes with early intervention Long term survival o Excellent results related to: Early diagnosis Increasing surgical expertise in small neonates Improvement in postoperative care Treatment of pulmonary hypertensive crisis ...
... Better outcomes with early intervention Long term survival o Excellent results related to: Early diagnosis Increasing surgical expertise in small neonates Improvement in postoperative care Treatment of pulmonary hypertensive crisis ...
Supravalvular aortic stenosis Echocardiographicfeatures
... transducer placed in the third or fourth intercostal space in order to record the free edge of the mitral valve with the transducer oriented perpendicular to the chest wall. The transducer was directed cephalo-medially from the mitral valve to the aortic valve and aortic root, while sequential Polar ...
... transducer placed in the third or fourth intercostal space in order to record the free edge of the mitral valve with the transducer oriented perpendicular to the chest wall. The transducer was directed cephalo-medially from the mitral valve to the aortic valve and aortic root, while sequential Polar ...
PHYSIOLOGY OF ADVENTURE RACING
... participants have to navigate through a number of check-points over a pre-set course, using a combination of three or more endurance/outdoor sports, e.g., cycling, running, and kayaking. This thesis is based on the results from four different protocols; 12- and 24-h (n = 8 and 9, respectively) in a ...
... participants have to navigate through a number of check-points over a pre-set course, using a combination of three or more endurance/outdoor sports, e.g., cycling, running, and kayaking. This thesis is based on the results from four different protocols; 12- and 24-h (n = 8 and 9, respectively) in a ...
ACC/AAP/AHA/ASE/HRS/SCAI/SCCT/SCMR/SOPE 2014
... In an effort to respond to the need for the rational use of services in the delivery of high quality care, the ACC has undertaken a process to determine the appropriate use of cardiovascular imaging and procedures for selected patient indications. AUC publications reflect an ongoing effort by the ACC ...
... In an effort to respond to the need for the rational use of services in the delivery of high quality care, the ACC has undertaken a process to determine the appropriate use of cardiovascular imaging and procedures for selected patient indications. AUC publications reflect an ongoing effort by the ACC ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.