Digital Pulse Analyzer (DPA)
... SNS is activated, producing an immediate, widespread response that has been called the “flight or fight” response. Characterized by the release of large quantities of epinephrine from the adrenal gland, an increase in heart rate, an increase in cardiac output, skeletal muscle vasodilation, cutaneous ...
... SNS is activated, producing an immediate, widespread response that has been called the “flight or fight” response. Characterized by the release of large quantities of epinephrine from the adrenal gland, an increase in heart rate, an increase in cardiac output, skeletal muscle vasodilation, cutaneous ...
Circulation: Arrhythmia and Electrophysiology Topic Review
... female sex, and pulmonary disease were significant correlates of pulseless electric activity. As anticipated, ventricular fibrillation was more likely to be associated with a diagnosis of hyperlipidemia or coronary artery disease. However, there were no differences in the overall disease burden or r ...
... female sex, and pulmonary disease were significant correlates of pulseless electric activity. As anticipated, ventricular fibrillation was more likely to be associated with a diagnosis of hyperlipidemia or coronary artery disease. However, there were no differences in the overall disease burden or r ...
Age Related Changes in the Parasympathetic Control of the Heart
... subjects (up to 90 years) in our study. The less consistent effect of age on VR likely relates to the smaller change and greater complexity of the maneuver. C Neumann (20) was of the opinion that results of the test proposed by Ewing and Clarke, however might differ between researchers because of di ...
... subjects (up to 90 years) in our study. The less consistent effect of age on VR likely relates to the smaller change and greater complexity of the maneuver. C Neumann (20) was of the opinion that results of the test proposed by Ewing and Clarke, however might differ between researchers because of di ...
the use of the phonocardiograph in clinical cardiology
... possible to record the heart sounds while actually hearing them reproduced by loud-speaker, a feature of capital importance. The electrocardiogram and the apex impulse can be recorded simultaneously with the heart sounds. I propose to speak to-day about triple rhythm which I regard as the principal ...
... possible to record the heart sounds while actually hearing them reproduced by loud-speaker, a feature of capital importance. The electrocardiogram and the apex impulse can be recorded simultaneously with the heart sounds. I propose to speak to-day about triple rhythm which I regard as the principal ...
Permanent transvenous pacemaker implantation in a patient with
... If the communicating orifice is small, the patient shows symptoms of congestive heart failure during infancy or childhood and usually requires surgical intervention for survival. If the connection is large and non-obstructive, patient may remain asymptomatic for many years, as in our case. The clini ...
... If the communicating orifice is small, the patient shows symptoms of congestive heart failure during infancy or childhood and usually requires surgical intervention for survival. If the connection is large and non-obstructive, patient may remain asymptomatic for many years, as in our case. The clini ...
pdf 1.64 MB - Sarver Heart Center
... 16 seconds to give the two breaths, roughly the same amount of time it takes to do 15 chest compressions. That means that chest compressions are being performed less than half the time, depriving the brain and other organs of blood and oxygen. Colleagues in Europe have made many of the same findings ...
... 16 seconds to give the two breaths, roughly the same amount of time it takes to do 15 chest compressions. That means that chest compressions are being performed less than half the time, depriving the brain and other organs of blood and oxygen. Colleagues in Europe have made many of the same findings ...
Cardiac Fine Structure in Selected Arthropods and Molluscs
... Pennsylvania Muscle Institute and the Department of Anatomy, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and The Bermuda Biological Station, St. George's West, Bermuda SYNOPSIS. The ultrastructure of the single-chambered hearts of selected arthropods is compared ...
... Pennsylvania Muscle Institute and the Department of Anatomy, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and The Bermuda Biological Station, St. George's West, Bermuda SYNOPSIS. The ultrastructure of the single-chambered hearts of selected arthropods is compared ...
http://hyper.ahajournals.org/content/early/2013/07/08/ HYPERTENSIONAHA.113.01605.full.pdf
... Abstract—Resting heart rate is an easily measured, noninvasive vital sign that is associated with cardiovascular disease events. The pathophysiology of this association is not known. We investigated the relationship between resting heart rate and stiffness of the carotid (a peripheral artery) and th ...
... Abstract—Resting heart rate is an easily measured, noninvasive vital sign that is associated with cardiovascular disease events. The pathophysiology of this association is not known. We investigated the relationship between resting heart rate and stiffness of the carotid (a peripheral artery) and th ...
Atrioventricular N odal Response to Retrograde Activation in Atrial
... . Atrioventricular Nodal Reset. Retrograde (ventriculoatrial) conduction that reaches the atrioventricular node simultaneous with, or just before an atrial impulse can facilitate subsequent anterograde conduction. However, a spontaneous or programmed ventricular extrasystole during atrial fibrillati ...
... . Atrioventricular Nodal Reset. Retrograde (ventriculoatrial) conduction that reaches the atrioventricular node simultaneous with, or just before an atrial impulse can facilitate subsequent anterograde conduction. However, a spontaneous or programmed ventricular extrasystole during atrial fibrillati ...
Vegfa Impacts Early Myocardium Development in Zebrafish
... cardiogenesis before the formation of AVC. Whether Vegfa influences the myocardium or endocardium is yet uncertain. Therefore, to address the role of Vegfa signaling in cardiac development, further studies are essential. In this study, we find that Vegfa signaling plays a major role in cardiac devel ...
... cardiogenesis before the formation of AVC. Whether Vegfa influences the myocardium or endocardium is yet uncertain. Therefore, to address the role of Vegfa signaling in cardiac development, further studies are essential. In this study, we find that Vegfa signaling plays a major role in cardiac devel ...
Blood Pressure
... Heart Rates and Rhythms • Normal heart rate is about 60-80 beats per minute (pulse), called sinus rhythm ...
... Heart Rates and Rhythms • Normal heart rate is about 60-80 beats per minute (pulse), called sinus rhythm ...
25 vagal influence on heart rate in hibernating ground squirrels
... parasympathetic tone acting on heart rate in euthermic squirrels. In hibernating squirrels, this influence is reduced or absent. This is consistent with previous studies (Biewald and Raths, 1959; Lyman and O’Brien, 1964; Johansen et al. 1964) as well as with observations that infusion of atropine of ...
... parasympathetic tone acting on heart rate in euthermic squirrels. In hibernating squirrels, this influence is reduced or absent. This is consistent with previous studies (Biewald and Raths, 1959; Lyman and O’Brien, 1964; Johansen et al. 1964) as well as with observations that infusion of atropine of ...
2. carditis
... Extracardiac: decreased appetite, lag or poor weight gain, weakness, sweating, fatigue, irritability, fits of excitement, sometimes loss of consciousness, seizures, hemiparesis, anxiety and cries at night, nausea and vomiting, pallor, with gray color of the skin; compulsive cough, worse with a chang ...
... Extracardiac: decreased appetite, lag or poor weight gain, weakness, sweating, fatigue, irritability, fits of excitement, sometimes loss of consciousness, seizures, hemiparesis, anxiety and cries at night, nausea and vomiting, pallor, with gray color of the skin; compulsive cough, worse with a chang ...
Genotype-phenotype assessment in autosomal recessive
... Eight of the subjects who were heterozygous carriers showed minor cardiac abnormalities; however, none of them fulfilled the criteria for diagnosis of ARVC. Four subjects had T-wave inversion in V1 and V2; three had mild right ventricular dilation, and one had T-wave inversion from V1 to V3 and mild ...
... Eight of the subjects who were heterozygous carriers showed minor cardiac abnormalities; however, none of them fulfilled the criteria for diagnosis of ARVC. Four subjects had T-wave inversion in V1 and V2; three had mild right ventricular dilation, and one had T-wave inversion from V1 to V3 and mild ...
Catheter Ablation for Ventricular Tachycardia
... What happens after the procedure? You will be returned to the ward where you were admitted. It is possible that you may not remember anything from the operating room and might only wake up fully when you are back on the ward. This is normal. The person who accompanied you to the hospital can visit y ...
... What happens after the procedure? You will be returned to the ward where you were admitted. It is possible that you may not remember anything from the operating room and might only wake up fully when you are back on the ward. This is normal. The person who accompanied you to the hospital can visit y ...
The Heart as a Pump
... A second outflow check valve in the tubing between the syringe and the metering reservoir allows the water to flow up the tube but not back into the syringe. If the plunger of the syringe is not held in place the water pressure in the beaker will cause water to flow into the syringe body. Pushing on ...
... A second outflow check valve in the tubing between the syringe and the metering reservoir allows the water to flow up the tube but not back into the syringe. If the plunger of the syringe is not held in place the water pressure in the beaker will cause water to flow into the syringe body. Pushing on ...
Computational modeling of cardiac electrophysiology
... can be analyzed and interpreted in the two-dimensional phase space as illustrated in Figure 2 (left). The dashed lines represent the two nullclines for r = 13 3 − for ˙ = 0 and r = [a −]/b for ṙ = 0, respectively. The nullclines are assumed to have a single intersection point that represents th ...
... can be analyzed and interpreted in the two-dimensional phase space as illustrated in Figure 2 (left). The dashed lines represent the two nullclines for r = 13 3 − for ˙ = 0 and r = [a −]/b for ṙ = 0, respectively. The nullclines are assumed to have a single intersection point that represents th ...
The Wenckebach Phenomenon: A Salute and Comment on the
... “A forty-year-old lady with nervous temperament” consulted Wenckebach about an irregular pulse. “She had noticed for a long time that her pulse was irregular. Her only heart trouble was a mild dilatation. Nevertheless, she suffered from deficient circulation and had the appearance of a weak and anem ...
... “A forty-year-old lady with nervous temperament” consulted Wenckebach about an irregular pulse. “She had noticed for a long time that her pulse was irregular. Her only heart trouble was a mild dilatation. Nevertheless, she suffered from deficient circulation and had the appearance of a weak and anem ...
A national survey of the prevalence, incidence, primary - Heart
... trial fibrillation (AF) is the commonest chronic arrhythmia.1 The prevalence and incidence of AF is believed to be increasing2 because population age is increasing3 and survival from conditions predisposing to AF (eg, coronary heart disease) is improving.4 5 AF causes significant morbidity and morta ...
... trial fibrillation (AF) is the commonest chronic arrhythmia.1 The prevalence and incidence of AF is believed to be increasing2 because population age is increasing3 and survival from conditions predisposing to AF (eg, coronary heart disease) is improving.4 5 AF causes significant morbidity and morta ...
Module 1 : Basic ECG Interpretation Module 1 Office 97
... their position in the triangle. The following picture shows how the ECG machine changes the charges to show different leads. But the physical position of the white red and black leads does ...
... their position in the triangle. The following picture shows how the ECG machine changes the charges to show different leads. But the physical position of the white red and black leads does ...
Johns Hopkins Medicine: Atrial Fibrillation
... of times a day, or only in several short episodes a year. These misfirings can result in what are called premature or ectopic beats—that is, coming from a source other than the SA node. If there is a so-called “run” of premature beats in the atria, the heart rhythm can go into what’s called atrial f ...
... of times a day, or only in several short episodes a year. These misfirings can result in what are called premature or ectopic beats—that is, coming from a source other than the SA node. If there is a so-called “run” of premature beats in the atria, the heart rhythm can go into what’s called atrial f ...
Beating and Arrested Intramyocardial Injections Are Associated with
... well, 5 mL of blood from the inferior vena cava, and the CPB pump circuit. Furthermore, each syringe used for microsphere delivery was flushed with 5 mL phosphate-buffered saline with 0.05% Tween and this fluid was analyzed for residual microspheres. All harvested tissue was digested for flow cytome ...
... well, 5 mL of blood from the inferior vena cava, and the CPB pump circuit. Furthermore, each syringe used for microsphere delivery was flushed with 5 mL phosphate-buffered saline with 0.05% Tween and this fluid was analyzed for residual microspheres. All harvested tissue was digested for flow cytome ...
Arrhythmogenic right ventricular cardiomyopathy associated with
... feline ARVC.2,4 Characteristic findings include right atrial and ventricular dilation, and thin, hypokinetic right ventricular wall segments with aneurysms, particularly those localized in the apical and subtricuspid regions. The tricuspid regurgitant jet detected in this cat was mild. This finding ...
... feline ARVC.2,4 Characteristic findings include right atrial and ventricular dilation, and thin, hypokinetic right ventricular wall segments with aneurysms, particularly those localized in the apical and subtricuspid regions. The tricuspid regurgitant jet detected in this cat was mild. This finding ...
AngioDynamics ECG Education
... The heart is composed of four chambers: right atrium, right ventricle, left atrium, and left ventricle. These chambers are electrically stimulated to contract in specific timed and paced fashion. The heart’s primary pace maker is a bundle of cells, known as the sinoatrial node (SA node), located upp ...
... The heart is composed of four chambers: right atrium, right ventricle, left atrium, and left ventricle. These chambers are electrically stimulated to contract in specific timed and paced fashion. The heart’s primary pace maker is a bundle of cells, known as the sinoatrial node (SA node), located upp ...