Print - Circulation Research
... Cat hearts were perfused through the aorta with substrate-free Krebs solution for 5 min, then with 5% CO2-95% O 3 saturated with water vapor at 37.5°C. Heart rate decreased rapidly but contractility was maintained at pre-gas levels for 3 to 4 hours, decreasing to 25% at 10 hours. Driving the prepara ...
... Cat hearts were perfused through the aorta with substrate-free Krebs solution for 5 min, then with 5% CO2-95% O 3 saturated with water vapor at 37.5°C. Heart rate decreased rapidly but contractility was maintained at pre-gas levels for 3 to 4 hours, decreasing to 25% at 10 hours. Driving the prepara ...
Nandrolone Plus Moderate Exercise Increases the Susceptibility to
... Background: Until now, no experimental study has directly assessed the arrhythmogenesis of chronic consumption of anabolic androgenic steroids along with moderate-intensity endurance exercise. Objectives: We evaluated the influence of integration of anabolic androgenic steroids along with moderate-i ...
... Background: Until now, no experimental study has directly assessed the arrhythmogenesis of chronic consumption of anabolic androgenic steroids along with moderate-intensity endurance exercise. Objectives: We evaluated the influence of integration of anabolic androgenic steroids along with moderate-i ...
Polarographic Oxygen, the Epicardial Electrocardiogram and
... which the epicardial lead was placed. Note variation in rapidity of fall in different iscuemic episodes, but similarity of fall rates for each episode. This similarity may be partly due to placement of electrodes more often in central than in border locations. ...
... which the epicardial lead was placed. Note variation in rapidity of fall in different iscuemic episodes, but similarity of fall rates for each episode. This similarity may be partly due to placement of electrodes more often in central than in border locations. ...
Exercise–based cardiac rehabilitation for heart failure
... A review to determine the efficacy of exercise training and its effects on outcomes in patients with heart failure. A total of 81 studies were identified: 30 randomized controlled trials, five nonrandomized controlled trials, nine randomized crossover trials, and 37 longitudinal cohort studies. Exer ...
... A review to determine the efficacy of exercise training and its effects on outcomes in patients with heart failure. A total of 81 studies were identified: 30 randomized controlled trials, five nonrandomized controlled trials, nine randomized crossover trials, and 37 longitudinal cohort studies. Exer ...
lar - Circulation
... seems inescapable that conduction over muscle tissue is not impaired by digitalis, while conduction through the fibers differentiated for rapid propagation of impulses is greatly depressed. The action of the glycosides on conduction must play an important role in the development of ventricular fibri ...
... seems inescapable that conduction over muscle tissue is not impaired by digitalis, while conduction through the fibers differentiated for rapid propagation of impulses is greatly depressed. The action of the glycosides on conduction must play an important role in the development of ventricular fibri ...
Successful catheter ablation of ventricular
... a double switch operation (DSO) with the combined Mustard and Rastelli procedures when he was 10 years old. He developed sustained VT 16 years after the surgery. An electrophysiological study was performed using a 3D mapping system. During the VT, abnormal fragmented potentials were identified in th ...
... a double switch operation (DSO) with the combined Mustard and Rastelli procedures when he was 10 years old. He developed sustained VT 16 years after the surgery. An electrophysiological study was performed using a 3D mapping system. During the VT, abnormal fragmented potentials were identified in th ...
echocardiographic evaluation of diastolic dysfunction in
... stiffness as well as LV mass and contribute to the diastolic dysfunction13. In the less advanced forms of tissue abnormality, the interstitial changes seem to predominate for some time and are associated with preserved cell morphology that is consistent with normal systolic function. As a potential ...
... stiffness as well as LV mass and contribute to the diastolic dysfunction13. In the less advanced forms of tissue abnormality, the interstitial changes seem to predominate for some time and are associated with preserved cell morphology that is consistent with normal systolic function. As a potential ...
effects on heart rate and blood pressure
... professionals and members of the public via the YellowCard Scheme (www.yellowcard.mhra.gov.uk) ...
... professionals and members of the public via the YellowCard Scheme (www.yellowcard.mhra.gov.uk) ...
Interaction between systolic and diastolic time intervals in atrial
... ventricular filling time and cycle length, with correlation coefficients approaching unity. It is, of course, obvious intuitively that some such correlation must exist, since if RR intervals are indeed random or nearly so the onset of each succeeding systole will be virtually independent of precedin ...
... ventricular filling time and cycle length, with correlation coefficients approaching unity. It is, of course, obvious intuitively that some such correlation must exist, since if RR intervals are indeed random or nearly so the onset of each succeeding systole will be virtually independent of precedin ...
The Morphogenesis of Transposition of the Great Vessels
... its complex adult form. Such a formulation offered a ready explanation for transposition and other syndromes with iniversion or apparent misplacement of cardiac components. Pernkopf and Wirtinger developed their data from the study of wax models of humna-ln fetal hearts at different ages, usinog the ...
... its complex adult form. Such a formulation offered a ready explanation for transposition and other syndromes with iniversion or apparent misplacement of cardiac components. Pernkopf and Wirtinger developed their data from the study of wax models of humna-ln fetal hearts at different ages, usinog the ...
Transcatheter Closure of Post-operative Residual Ventricular Septal
... failure persisted because the residual VSDs did not respond to anti-heart failure drugs. VSD closure with LV-aorta tunneling frequently results in residual VSDs because of the difficulty in part of the VSD being located beneath the aortic valve region. Since the procedure is done while the heart is ...
... failure persisted because the residual VSDs did not respond to anti-heart failure drugs. VSD closure with LV-aorta tunneling frequently results in residual VSDs because of the difficulty in part of the VSD being located beneath the aortic valve region. Since the procedure is done while the heart is ...
Serum Cortisol as a Useful Predictor of Cardiac Events in Patients
... adenine dinucleotide phosphate oxidase is activated and generation of reactive oxygen species is increased in cardiomyocytes,27 and then, cortisol may act as an MR agonist under those conditions. In this study, high serum cortisol was an independent predictor of cardiac events. However, there was no ...
... adenine dinucleotide phosphate oxidase is activated and generation of reactive oxygen species is increased in cardiomyocytes,27 and then, cortisol may act as an MR agonist under those conditions. In this study, high serum cortisol was an independent predictor of cardiac events. However, there was no ...
About Your Pacemaker
... Sinus node: or sinoatrial (SA) node. The area of the heart in the right atrium responsible for the electrical impulses which result in a contraction or a heartbeat. Also known as the natural pacemaker. Sensing: a pacemaker function which allows the pacemaker to recognize the heart’s own activities. ...
... Sinus node: or sinoatrial (SA) node. The area of the heart in the right atrium responsible for the electrical impulses which result in a contraction or a heartbeat. Also known as the natural pacemaker. Sensing: a pacemaker function which allows the pacemaker to recognize the heart’s own activities. ...
PDF ansehen - Deutsches Herzzentrum München
... for adult patients needs to be provided. Excellent nursing support adds value to the team. Whether nursing team members should come from an adult or pediatric background can be debated. A long-term commitment to ACHD care will improve their knowledge and abilities. Access to excellent congenital hea ...
... for adult patients needs to be provided. Excellent nursing support adds value to the team. Whether nursing team members should come from an adult or pediatric background can be debated. A long-term commitment to ACHD care will improve their knowledge and abilities. Access to excellent congenital hea ...
Cardiac Transplantation in a Patient With a Persistent Left Superior
... knowledge of the malformation to retain a sufficiently long segment of superior vena cava from the donor for the purpose of combining various anastomosis possibilities and thus expand the range of surgical options.3 The first method consists of reconstructing the right superior vena cava from the di ...
... knowledge of the malformation to retain a sufficiently long segment of superior vena cava from the donor for the purpose of combining various anastomosis possibilities and thus expand the range of surgical options.3 The first method consists of reconstructing the right superior vena cava from the di ...
Arrhythmogenic Right Ventricular Dysplasia
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
Reproducibility of Blood Pressure and Inter-Beat
... (Cymerys et al. 2002), increased intima-media thickness (Zakopoulos et al. 2005), and for the end-organ damage (Parati et al. 1987). Mancia et al. (1983) also showed that hypertensive subjects have increased BPV in comparison with normotensive ones. Since the oscillations in blood pressure reflect t ...
... (Cymerys et al. 2002), increased intima-media thickness (Zakopoulos et al. 2005), and for the end-organ damage (Parati et al. 1987). Mancia et al. (1983) also showed that hypertensive subjects have increased BPV in comparison with normotensive ones. Since the oscillations in blood pressure reflect t ...
Pdf version
... has not been performed to compare those find‑ ings with ours. In a recent study, Dewey et al.4 concluded that CT provides a reliable evaluation of the global and regional LV function mostly due to moderate‑to‑strong agreement between MRI and CT for LVEF estimation, with the coefficient of variation ...
... has not been performed to compare those find‑ ings with ours. In a recent study, Dewey et al.4 concluded that CT provides a reliable evaluation of the global and regional LV function mostly due to moderate‑to‑strong agreement between MRI and CT for LVEF estimation, with the coefficient of variation ...
Ch. 19 Physiology of the Cardiovascular System
... blood performs its ultimate transport function. Nutrients and other essential materials pass from capillary blood into fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it mus ...
... blood performs its ultimate transport function. Nutrients and other essential materials pass from capillary blood into fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it mus ...
ABERRANT VENTRICULAR CONDUCTION TYPES AND
... system, the phenomenon the authors observed originated within ischemic myocardium. In vitro studies indicate that the underlying mechanism may be related to postrepolarization refractoriness induced by ischemia7. Transitory BBB at the onset of an SVT is noted in 14% of the population, is more freque ...
... system, the phenomenon the authors observed originated within ischemic myocardium. In vitro studies indicate that the underlying mechanism may be related to postrepolarization refractoriness induced by ischemia7. Transitory BBB at the onset of an SVT is noted in 14% of the population, is more freque ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.