The impact of age on cardiac excitation
... heart, even in the absence of overt cardiovascular disease.1 Left ventricular wall thickness increases with age in the human heart.1 This occurs even though the total number of viable ventricular myocytes actually declines with age because the remaining cells hypertrophy.1,2 Increased accumulation o ...
... heart, even in the absence of overt cardiovascular disease.1 Left ventricular wall thickness increases with age in the human heart.1 This occurs even though the total number of viable ventricular myocytes actually declines with age because the remaining cells hypertrophy.1,2 Increased accumulation o ...
... process initiating with coronary occlusion and frequently progressing towards chronic heart failure in survivors. In recent years much research has been devoted to revascularization of ischemic territory by both pharmacological and mechanical interventions in the very acute phase, in order to minimi ...
Print - Circulation
... bypass and on the seventh postoperative day. At the time of the intraoperative study, two of the patients had been receiving digoxin and two had been receiving propranolol. During induction and/or maintenance of anesthesia, three patients received scopolamine (0.4-0.5 mg) and all patients received d ...
... bypass and on the seventh postoperative day. At the time of the intraoperative study, two of the patients had been receiving digoxin and two had been receiving propranolol. During induction and/or maintenance of anesthesia, three patients received scopolamine (0.4-0.5 mg) and all patients received d ...
Review Article Epicardial Ablation For Ventricular Tachycardia
... reported in the literature [3]. One [4] of these occurred in our center two years ago and was discovered 3 days after the procedure because of the presence of progressive anemia in the absence of pericardial effusion and without any other significant abdominal symptoms. In both cases abdominal surge ...
... reported in the literature [3]. One [4] of these occurred in our center two years ago and was discovered 3 days after the procedure because of the presence of progressive anemia in the absence of pericardial effusion and without any other significant abdominal symptoms. In both cases abdominal surge ...
Avhandling 20130902 Ulla-Britt Diamant
... deflection. In 1912, he also defined the current standard ECG leads I, II and III also known as “Einthoven’s triangle” (4). Einthoven and colleagues described the first electrical heart vector and the angle that was between a horizontal reference line and the heart vector. It was time consuming to c ...
... deflection. In 1912, he also defined the current standard ECG leads I, II and III also known as “Einthoven’s triangle” (4). Einthoven and colleagues described the first electrical heart vector and the angle that was between a horizontal reference line and the heart vector. It was time consuming to c ...
Atrial Arrhythmias After Single-Ring Isolation of the Posterior Left
... By placing the circular mapping catheter sequentially in each of the veins, it was possible, by comparison with a coronary sinus reference electrogram, to determine which vein was activated first. The activation sequence in the earliest vein indicated whether this activation was coming from the adja ...
... By placing the circular mapping catheter sequentially in each of the veins, it was possible, by comparison with a coronary sinus reference electrogram, to determine which vein was activated first. The activation sequence in the earliest vein indicated whether this activation was coming from the adja ...
OVEREXPRESSION OF ANG-(1-7) OR CARDIAC-SELECTIVE OVEREXPRESSION
... et al., 2009) (Rosamond et al., 2007). Prompt recognition and treatment is critical for preventing further damage to the myocardium. Heart Failure Heart failure is a condition when the heart can not pump enough blood to meet the body’s demand. The most common cause for the heart failure is ischemic ...
... et al., 2009) (Rosamond et al., 2007). Prompt recognition and treatment is critical for preventing further damage to the myocardium. Heart Failure Heart failure is a condition when the heart can not pump enough blood to meet the body’s demand. The most common cause for the heart failure is ischemic ...
PU/PET Scaffold Utilized for a Stem Cell
... Table of Figures Figure 1: Heart location in relation to the rib cage and spinal column ......................................... 14 Figure 2: Diagram of the four chambers and valves of the heart.................................................. 15 Figure 3: Electrical conduction pathway of the hea ...
... Table of Figures Figure 1: Heart location in relation to the rib cage and spinal column ......................................... 14 Figure 2: Diagram of the four chambers and valves of the heart.................................................. 15 Figure 3: Electrical conduction pathway of the hea ...
Chow Sample Chap 1
... activation nearly simultaneous throughout the ventricles. This rapid conduction, and simultaneous activation of the right and left ventricles, results in the narrow QRS complex seen on a normal ECG. If an impulse is transmitted throughout the ventricle without using the His-Purkinje system, it takes ...
... activation nearly simultaneous throughout the ventricles. This rapid conduction, and simultaneous activation of the right and left ventricles, results in the narrow QRS complex seen on a normal ECG. If an impulse is transmitted throughout the ventricle without using the His-Purkinje system, it takes ...
Correlation of Atrial Natriuretic Peptide and Cyclic
... in patients suffering from a variety of cardiac diseases. There was a correlation between plasma concentrations of atrial natriuretic peptide and its "second messenger" cyclic guanosine monophosphate (cGMP) in all of the cases examined. We investigated the relationship between atrial natriuretic pep ...
... in patients suffering from a variety of cardiac diseases. There was a correlation between plasma concentrations of atrial natriuretic peptide and its "second messenger" cyclic guanosine monophosphate (cGMP) in all of the cases examined. We investigated the relationship between atrial natriuretic pep ...
Computational evaluation of the roles of Na current, iNa - AJP
... cardiac cells (7, 14, 21, 26). Considering the discrete nature of cell spatial distribution and arrangement, in this study, we idealized the intact SA node and atrium as a network of electrically coupled SA node and atrial cells, which are bounded in an irregular spatial domain that can be modeled b ...
... cardiac cells (7, 14, 21, 26). Considering the discrete nature of cell spatial distribution and arrangement, in this study, we idealized the intact SA node and atrium as a network of electrically coupled SA node and atrial cells, which are bounded in an irregular spatial domain that can be modeled b ...
the left atrium in hypertension: a symbol of mortality and morbidity?
... Indeed, left atrial size and/or function has been implicated in a number of cardiovascular and cerebrovascular disorders as being either causal or as an indirect marker(s) of disease [1]. For example, the Framingham study reported that left atrial enlargement was a significant predictor of stroke in ...
... Indeed, left atrial size and/or function has been implicated in a number of cardiovascular and cerebrovascular disorders as being either causal or as an indirect marker(s) of disease [1]. For example, the Framingham study reported that left atrial enlargement was a significant predictor of stroke in ...
Fundamentals of Electrocardiography Part I
... •As the impulse from the atria enters the AV node, there is a delay in conduction of the impulse to the ventricles – Allows time for atria to empty contents into ventricles – Provides electrical links between atrium and ventricle ...
... •As the impulse from the atria enters the AV node, there is a delay in conduction of the impulse to the ventricles – Allows time for atria to empty contents into ventricles – Provides electrical links between atrium and ventricle ...
ECGprimer
... White to the right. Red to the ribs. Black on top. White to the right. Smoke (black) over fire (red). Just the same, we can always just look for reference from the end of the electrodes and place them accordingly. Electrodes are best connected to the skin in an area with minimal muscle activity. The ...
... White to the right. Red to the ribs. Black on top. White to the right. Smoke (black) over fire (red). Just the same, we can always just look for reference from the end of the electrodes and place them accordingly. Electrodes are best connected to the skin in an area with minimal muscle activity. The ...
An ECG Primer
... White to the right. Red to the ribs. Black on top. White to the right. Smoke (black) over fire (red). Just the same, we can always just look for reference from the end of the electrodes and place them accordingly. Electrodes are best connected to the skin in an area with minimal muscle activity. The ...
... White to the right. Red to the ribs. Black on top. White to the right. Smoke (black) over fire (red). Just the same, we can always just look for reference from the end of the electrodes and place them accordingly. Electrodes are best connected to the skin in an area with minimal muscle activity. The ...
Biventricular Pacemakers
... (NCD) 20.8, Cardiac Pacemakers and 20.8.3 Cardiac Pacemakers: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers for additional pacemaker indications. * Refer to Novitas Solutions Local Coverage Article (LCA) A54982 Single Chamber and Dual ...
... (NCD) 20.8, Cardiac Pacemakers and 20.8.3 Cardiac Pacemakers: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers for additional pacemaker indications. * Refer to Novitas Solutions Local Coverage Article (LCA) A54982 Single Chamber and Dual ...
Interrelation between Restitution Time
... force transducer was recorded on a multichannel thermal recorder together with an atrial or surface electrocardiogram. Under direct vision, after inflow obstruction, complete atrioventricular block was produced by electro-coagulation of the atrio-ventricular nodal region. Such a procedure makes it p ...
... force transducer was recorded on a multichannel thermal recorder together with an atrial or surface electrocardiogram. Under direct vision, after inflow obstruction, complete atrioventricular block was produced by electro-coagulation of the atrio-ventricular nodal region. Such a procedure makes it p ...
DATA SHEET LANOXIN
... LANOXIN is contra-indicated in hypertrophic obstructive cardiomyopathy, unless there is concomitant atrial fibrillation and heart failure but even then caution should be exercised if LANOXIN is to be used. LANOXIN is contra-indicated in patients known to be hypersensitive to digoxin or other digital ...
... LANOXIN is contra-indicated in hypertrophic obstructive cardiomyopathy, unless there is concomitant atrial fibrillation and heart failure but even then caution should be exercised if LANOXIN is to be used. LANOXIN is contra-indicated in patients known to be hypersensitive to digoxin or other digital ...
as PDF
... rectifying Cl- current was only activated by membrane potentials more negative than -60 mV and might contribute to the diastolic depolarization. Eliminating this current component by a replacement of Cl- with less permeable acetate caused a reduction in frequency of SAN rhythm and an increase in the ...
... rectifying Cl- current was only activated by membrane potentials more negative than -60 mV and might contribute to the diastolic depolarization. Eliminating this current component by a replacement of Cl- with less permeable acetate caused a reduction in frequency of SAN rhythm and an increase in the ...
Arrhythmogenic right ventricular cardiomyopathy Is it right?
... Sudden cardiac death is defined as unexpected death due to heart problems within a short time period, generally one hour from the onset of symptoms, in a person without any prior fatal condition[5]. For unwitnessed deaths, the World Health Organization definition extends to up to 24 hours [6]. The m ...
... Sudden cardiac death is defined as unexpected death due to heart problems within a short time period, generally one hour from the onset of symptoms, in a person without any prior fatal condition[5]. For unwitnessed deaths, the World Health Organization definition extends to up to 24 hours [6]. The m ...
Effects of Physiologic Pacing versus Ventricular Pacing on the Risk
... Conclusions Physiologic pacing provides little benefit over ventricular pacing for the prevention of stroke or death due to cardiovascular causes. (N Engl J Med ...
... Conclusions Physiologic pacing provides little benefit over ventricular pacing for the prevention of stroke or death due to cardiovascular causes. (N Engl J Med ...
CardioNet, Inc. v. MedNet Healthcare
... processing system is capable of pictographically presenting, using a common time scale, information regarding the heart rate data during a defined time period and regarding duration of arrhythmia event activity, according to the identified arrhythmia events, during the defined time period such that ...
... processing system is capable of pictographically presenting, using a common time scale, information regarding the heart rate data during a defined time period and regarding duration of arrhythmia event activity, according to the identified arrhythmia events, during the defined time period such that ...
Cardiac Resynchronization Therapy Defibrillator
... An abnormal heartbeat that is too fast, too slow, or irregular. Asynchrony A condition in which the heart fails to maintain a normal timing sequence between atrial and ventricular contractions. Atrial fibrillation (AF) An irregular heart rhythm caused by abnormal electrical signals starting from sev ...
... An abnormal heartbeat that is too fast, too slow, or irregular. Asynchrony A condition in which the heart fails to maintain a normal timing sequence between atrial and ventricular contractions. Atrial fibrillation (AF) An irregular heart rhythm caused by abnormal electrical signals starting from sev ...
Comprehensive First Aid/CPR/AED
... disease causes coronary heart disease (CHD), also known as coronary artery disease. People with cardiovascular disease are likely also to have disease of other blood vessels, which can cause strokes, also called brain attacks. More about stroke is included in Chapter 15. CHD occurs when the coronary ...
... disease causes coronary heart disease (CHD), also known as coronary artery disease. People with cardiovascular disease are likely also to have disease of other blood vessels, which can cause strokes, also called brain attacks. More about stroke is included in Chapter 15. CHD occurs when the coronary ...
Heart Guide - Center for Plain Language
... Coronary artery disease – This refers to conditions that block blood flow in the arteries that supply the heart. The most common cause of this blockage is a condition called atherosclerosis, when the arterial walls thicken and stiffen due to the buildup of fatty deposits inside the arteries. C ...
... Coronary artery disease – This refers to conditions that block blood flow in the arteries that supply the heart. The most common cause of this blockage is a condition called atherosclerosis, when the arterial walls thicken and stiffen due to the buildup of fatty deposits inside the arteries. C ...