Preserved contractile function despite atrophic remodeling in
... These findings of preserved function using normalized indexes of contractility suggest that atrophic remodeling does not adversely affect sarcomere function under basal conditions. Nevertheless, the striking reduction in absolute Fmax as a result of atrophic remodeling does demonstrate that a net lo ...
... These findings of preserved function using normalized indexes of contractility suggest that atrophic remodeling does not adversely affect sarcomere function under basal conditions. Nevertheless, the striking reduction in absolute Fmax as a result of atrophic remodeling does demonstrate that a net lo ...
Sudden cardiac death in forensic medicine – Swiss
... such as hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC), non-compaction cardiomyopathy (NCCM), or myocardial infiltrative diseases. For the remaining 5–10% the cause of SCD is related either to a structurally abnormal congenital ...
... such as hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC), non-compaction cardiomyopathy (NCCM), or myocardial infiltrative diseases. For the remaining 5–10% the cause of SCD is related either to a structurally abnormal congenital ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize
... Atrial tachycardia with high degree AV block AV dissociation due to suppression of dominant pacemaker with escape of subsidiary pacemaker or acceleration of a lower pacemaker, or dissociation with AV junctional rhythm Triggered automaticity Accelerated junctional impulses after premature ectopic imp ...
... Atrial tachycardia with high degree AV block AV dissociation due to suppression of dominant pacemaker with escape of subsidiary pacemaker or acceleration of a lower pacemaker, or dissociation with AV junctional rhythm Triggered automaticity Accelerated junctional impulses after premature ectopic imp ...
Tumor Necrosis Factor-Alpha and Inflammation
... inflammation, and cell death. TNF-α is important in initiating and regulating the cytokine cascade during an inflammatory response. Most of the studies focused on the TNF-α as an immune mediator but its function in cardiac cells is not well defined. This review focuses on the role of TNF-α in acute ...
... inflammation, and cell death. TNF-α is important in initiating and regulating the cytokine cascade during an inflammatory response. Most of the studies focused on the TNF-α as an immune mediator but its function in cardiac cells is not well defined. This review focuses on the role of TNF-α in acute ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize REVIEW
... Atrial tachycardia with high degree AV block AV dissociation due to suppression of dominant pacemaker with escape of subsidiary pacemaker or acceleration of a lower pacemaker, or dissociation with AV junctional rhythm Triggered automaticity Accelerated junctional impulses after premature ectopic imp ...
... Atrial tachycardia with high degree AV block AV dissociation due to suppression of dominant pacemaker with escape of subsidiary pacemaker or acceleration of a lower pacemaker, or dissociation with AV junctional rhythm Triggered automaticity Accelerated junctional impulses after premature ectopic imp ...
Images and Case Reports in Arrhythmia and Electrophysiology
... as it was coaxial with the transseptal sheath and thus required minimal equipment adjustment in additional planes. We think that integration of 3D TEE with this transseptal technique can be applied as an alternative method of left atrial access in other situations such as deployment of the Watchman ...
... as it was coaxial with the transseptal sheath and thus required minimal equipment adjustment in additional planes. We think that integration of 3D TEE with this transseptal technique can be applied as an alternative method of left atrial access in other situations such as deployment of the Watchman ...
Rapid Communications - Circulation Research
... Abstract—The Jervell and Lange-Nielsen (JLN) syndrome affects the human cardioauditory system, associating a profound bilateral deafness with an abnormally long QT interval on the ECG. It results from mutations in KVLQT1 and ISK genes that encode the 2 subunits forming the K1 channel responsible for ...
... Abstract—The Jervell and Lange-Nielsen (JLN) syndrome affects the human cardioauditory system, associating a profound bilateral deafness with an abnormally long QT interval on the ECG. It results from mutations in KVLQT1 and ISK genes that encode the 2 subunits forming the K1 channel responsible for ...
PDF
... Cardiac fibrillation is the breakdown of the organized cardiac electrical activity driving the heart’s periodic pumping, into disorganized self-sustained electrical activation patterns. A fibrillation episode results in the loss of cardiac output, and unless timely intervention is administered, deat ...
... Cardiac fibrillation is the breakdown of the organized cardiac electrical activity driving the heart’s periodic pumping, into disorganized self-sustained electrical activation patterns. A fibrillation episode results in the loss of cardiac output, and unless timely intervention is administered, deat ...
Autonomic control of the heart in Boa constrictor
... Ely, 1993). Studies on other ectothermic vertebrates also point to an important role for the sympathetic nervous system in causing tachycardia during exercise, e.g. (Wahlqvist and Campbell, 1988; Axelsson, 1988; Axelsson et al., 1989). However, because metabolic rate remains elevated for several day ...
... Ely, 1993). Studies on other ectothermic vertebrates also point to an important role for the sympathetic nervous system in causing tachycardia during exercise, e.g. (Wahlqvist and Campbell, 1988; Axelsson, 1988; Axelsson et al., 1989). However, because metabolic rate remains elevated for several day ...
Biochemical Studies of Energy Production in the Failing
... compounds in human myocardial tissue. Accordingly, the present study was carried out with myocardial tissue removed at the time of cardiac operations from 25 patients with congestive heart failure. Mitochondria isolated from these tissues were shown to possess a high degree of structural and functio ...
... compounds in human myocardial tissue. Accordingly, the present study was carried out with myocardial tissue removed at the time of cardiac operations from 25 patients with congestive heart failure. Mitochondria isolated from these tissues were shown to possess a high degree of structural and functio ...
motion mode echocardiography on healthy male
... Kealy et al. 2011). It uses frequencies greater than 20.000 cycles/second (Hz). The transmission velocity of ultrasound waves in blood and most soft tissues cells is uniform at 1540 m/sec (Coatney 2001). Common ultrasound frequencies used in cats are between 2 and 15 MHz (Chandler et al. 2004; Schob ...
... Kealy et al. 2011). It uses frequencies greater than 20.000 cycles/second (Hz). The transmission velocity of ultrasound waves in blood and most soft tissues cells is uniform at 1540 m/sec (Coatney 2001). Common ultrasound frequencies used in cats are between 2 and 15 MHz (Chandler et al. 2004; Schob ...
Class 24 heart
... electrical energy that stimulates the heart muscle to contract. What parts of the conduction system do the internodal pathways connect? ...
... electrical energy that stimulates the heart muscle to contract. What parts of the conduction system do the internodal pathways connect? ...
Cardiac Overexpression of the Norepinephrine Transporter Uptake
... failure. Cardiac NE spillover is the net result of NE release from nerve terminals and clearance of synaptic NE mainly caused by reuptake via the uptake carriers. A reduction of cardiac uptake-1 density or function has been documented in tissue samples of both human patients and animal models of the ...
... failure. Cardiac NE spillover is the net result of NE release from nerve terminals and clearance of synaptic NE mainly caused by reuptake via the uptake carriers. A reduction of cardiac uptake-1 density or function has been documented in tissue samples of both human patients and animal models of the ...
Concealed Wenckebach phenomena in the left bundle-branch
... When the supraventricular rhythm is irregu- FIG. 2, Case 2. Electrocardiograms, standard lar, intermittent bundle-branch block may be lead II and two nearly continuous sections of lead a VR showing partly concealed varying an expression of phasic aberrant ventricular conduction. Under this circumsta ...
... When the supraventricular rhythm is irregu- FIG. 2, Case 2. Electrocardiograms, standard lar, intermittent bundle-branch block may be lead II and two nearly continuous sections of lead a VR showing partly concealed varying an expression of phasic aberrant ventricular conduction. Under this circumsta ...
Cats` Silent Killer: Screening for cardiomyopathy in
... However, congestive heart failure is diagnosed on thoracic radiographs by the presence of pulmonary edema or pleural effusion. Electrocardiogram (ECG)—An ECG is the only way to characterize an arrhythmia accurately. Other changes on the ECG may give clues about the underlying etiology of cardiac di ...
... However, congestive heart failure is diagnosed on thoracic radiographs by the presence of pulmonary edema or pleural effusion. Electrocardiogram (ECG)—An ECG is the only way to characterize an arrhythmia accurately. Other changes on the ECG may give clues about the underlying etiology of cardiac di ...
Moderate severity heart failure does not involve a - AJP
... mechanisms responsible for this switch are not known. FAO is regulated by myocardial malonyl-CoA, which inhibits CPT-I and mitochondrial fatty acid uptake (9, 20). We recently observed that neither CPT-I nor MCAD activities were reduced in dogs with moderate compensated HF induced by coronary microe ...
... mechanisms responsible for this switch are not known. FAO is regulated by myocardial malonyl-CoA, which inhibits CPT-I and mitochondrial fatty acid uptake (9, 20). We recently observed that neither CPT-I nor MCAD activities were reduced in dogs with moderate compensated HF induced by coronary microe ...
Changes in the cardiac autonomic regulation in children with
... Revision)18 without comorbid mental disorders; before psychopharmacological and other treatment; nonsmokers; moderate physical activity; and no evidence of hypertension, diabetes mellitus, obesity, underweight or other diseases. Control (non-ADHD) group: The control (non-ADHD) group consisted of hea ...
... Revision)18 without comorbid mental disorders; before psychopharmacological and other treatment; nonsmokers; moderate physical activity; and no evidence of hypertension, diabetes mellitus, obesity, underweight or other diseases. Control (non-ADHD) group: The control (non-ADHD) group consisted of hea ...
Inglés - SciELO México
... heart rate obtained in the stress test, it demonstrated in the study population that to older age less was his MHR obtained (18 to 30 years: 183 bpm ± 12; 31 to 40 years: 176 bpm ± 15; 41 to 50 years: 167 bpm ± 13; older to 50 years: 163 bpm ± 13; p < 0.001) (Table V). And the equations with less ar ...
... heart rate obtained in the stress test, it demonstrated in the study population that to older age less was his MHR obtained (18 to 30 years: 183 bpm ± 12; 31 to 40 years: 176 bpm ± 15; 41 to 50 years: 167 bpm ± 13; older to 50 years: 163 bpm ± 13; p < 0.001) (Table V). And the equations with less ar ...
Atrial Natriuretic Peptide in Chronic Heart Failure in the Rat: A
... To assess the relation between atrial natriuretic peptide and ventricular dysfunction, we simultaneously measured both atrial and plasma immunoreactive atrial natriuretic peptide concentrations in rats 4 weeks after myocardial infarction induced by left coronary artery ligation. When compared to con ...
... To assess the relation between atrial natriuretic peptide and ventricular dysfunction, we simultaneously measured both atrial and plasma immunoreactive atrial natriuretic peptide concentrations in rats 4 weeks after myocardial infarction induced by left coronary artery ligation. When compared to con ...
UConn Biomedical Engineering
... Long Q-T syndrome (a disorder that could lead to fainting (syncope) or sudden cardiac death) ...
... Long Q-T syndrome (a disorder that could lead to fainting (syncope) or sudden cardiac death) ...
Low Heart Rate Variability In A 2-Minute Rhythm Strip Predicts Risk
... he heart rate of healthy persons displays beat-to-beat variations that result from fluctuations in autonomic nervous system activity at the sinus node. Heart rate variability (HRV) decreases under situations of stress, either emotional or physical, whereas it increases with rest. Therefore, HRV is c ...
... he heart rate of healthy persons displays beat-to-beat variations that result from fluctuations in autonomic nervous system activity at the sinus node. Heart rate variability (HRV) decreases under situations of stress, either emotional or physical, whereas it increases with rest. Therefore, HRV is c ...
EKG Manual - Biomedical Engineering
... Long Q-T syndrome (a disorder that could lead to fainting (syncope) or sudden cardiac death) ...
... Long Q-T syndrome (a disorder that could lead to fainting (syncope) or sudden cardiac death) ...
Predicting the Likelihood of Heart Failure with a Multi Level Risk
... complex clinical syndrome that can result from any structural or functional cardiac or non-cardiac disorder that impairs the ability of the heart to respond to physiological demands for increased cardiac output." [4, 5]. In other words, the term ‘heart failure’ refers to a condition in which the hea ...
... complex clinical syndrome that can result from any structural or functional cardiac or non-cardiac disorder that impairs the ability of the heart to respond to physiological demands for increased cardiac output." [4, 5]. In other words, the term ‘heart failure’ refers to a condition in which the hea ...
Management of collapses ?causes in the elderly
... nervous diseases… every kind of debility… especially great loss of blood, and many kinds of poisons produce fainting. Whatever weakens the motion of the blood through the brain tends to produce fainting. The mere posture of the body may either bring on or keep off fainting, or remove it after it has ...
... nervous diseases… every kind of debility… especially great loss of blood, and many kinds of poisons produce fainting. Whatever weakens the motion of the blood through the brain tends to produce fainting. The mere posture of the body may either bring on or keep off fainting, or remove it after it has ...
Running head: ATRIAL FIBRILLATION
... fibrillation are random impulses firing rapidly around the pulmonary veins, the right atrium, superior vena cava and coronary sinus (Neal, 2007). This uncoordinated and chaotic electrical activity is what is referred to as atrial fibrillation. This loss of normal electrical conduction causes the atr ...
... fibrillation are random impulses firing rapidly around the pulmonary veins, the right atrium, superior vena cava and coronary sinus (Neal, 2007). This uncoordinated and chaotic electrical activity is what is referred to as atrial fibrillation. This loss of normal electrical conduction causes the atr ...