Echocardiographic Evaluation of Pericardial Disease
... superior vena cava) than in the left heart (measured in the pulmonary veins)9. CXR and cardiac MRI are the two imaging modalities that appear to be most useful in making the definitive diagnosis of congenital absence of the pericardium9. Pericarditis is an inflammation of the pericardium and can occ ...
... superior vena cava) than in the left heart (measured in the pulmonary veins)9. CXR and cardiac MRI are the two imaging modalities that appear to be most useful in making the definitive diagnosis of congenital absence of the pericardium9. Pericarditis is an inflammation of the pericardium and can occ ...
Grid Lead System
... capacitance effects whichl appear as an initial spike. This is ignored. Polarization effects produce plateau slopes. The quality of electrode-skin contact should be good enough to give a square wave having a slope of 300 or less. True voltage is measured by measuring the up or downstroke before pola ...
... capacitance effects whichl appear as an initial spike. This is ignored. Polarization effects produce plateau slopes. The quality of electrode-skin contact should be good enough to give a square wave having a slope of 300 or less. True voltage is measured by measuring the up or downstroke before pola ...
paced - Weebly
... Biventricular pacing Also known as cardiac resynchronization therapy, keeps the right and left ventricles pumping together by sending small electrical impulses to the heart muscle coordinating their contractions. The heart is able to fill and pump blood more effectively. This along with medical ...
... Biventricular pacing Also known as cardiac resynchronization therapy, keeps the right and left ventricles pumping together by sending small electrical impulses to the heart muscle coordinating their contractions. The heart is able to fill and pump blood more effectively. This along with medical ...
WIDE QRS TACHYCARDIA DR ANKUR
... penetration (e.g. from a premature ventricular contraction ) into bundle branch making it refractory to subsequent beats. ...
... penetration (e.g. from a premature ventricular contraction ) into bundle branch making it refractory to subsequent beats. ...
Document
... # 2006 Elsevier B.V. All rights reserved. Keywords: Ventricular pacing; Helical myocardial ventricular band; Ventricular function; Helical heart; Sonomicrometry ...
... # 2006 Elsevier B.V. All rights reserved. Keywords: Ventricular pacing; Helical myocardial ventricular band; Ventricular function; Helical heart; Sonomicrometry ...
The Artificial Pacemaker . . . . . . A Pure Success Story!?
... In a normal functioning heart, the pumping action is synchronized by the pacemaker region of the heart which is located in the right atrium. This is some kind of natural pacemaker that has the ability to create electrical energy. The created impulse is transferred to the atria, causing them to contr ...
... In a normal functioning heart, the pumping action is synchronized by the pacemaker region of the heart which is located in the right atrium. This is some kind of natural pacemaker that has the ability to create electrical energy. The created impulse is transferred to the atria, causing them to contr ...
The relationship between B-type natriuretic peptide levels and
... This chapter begins by defining congestive heart failure (CHF), discussing the etiology and pathophysiology of heart failure (HF), including the signs and symptoms, stages, and classifications to facilitate understanding of the disease process. This is followed by the presentation of the epidemiolog ...
... This chapter begins by defining congestive heart failure (CHF), discussing the etiology and pathophysiology of heart failure (HF), including the signs and symptoms, stages, and classifications to facilitate understanding of the disease process. This is followed by the presentation of the epidemiolog ...
Echocardiographic Assessment of Cardiac Anatomy
... patients. To assess the prevalence of anatomic and functional abnormalities of the heart in such patients, we studied 234 asymptomatic subjects with mild-to-moderate systemic hypertension by echocardiography. After adjusting the echocardiographic values for age and body surface area, we found abnorm ...
... patients. To assess the prevalence of anatomic and functional abnormalities of the heart in such patients, we studied 234 asymptomatic subjects with mild-to-moderate systemic hypertension by echocardiography. After adjusting the echocardiographic values for age and body surface area, we found abnorm ...
Tamponade and Pericardial Diseases
... superior vena cava) than in the left heart (measured in the pulmonary veins)9. CXR and cardiac MRI are the two imaging modalities that appear to be most useful in making the definitive diagnosis of congenital absence of the pericardium9. Pericarditis is an inflammation of the pericardium and can occ ...
... superior vena cava) than in the left heart (measured in the pulmonary veins)9. CXR and cardiac MRI are the two imaging modalities that appear to be most useful in making the definitive diagnosis of congenital absence of the pericardium9. Pericarditis is an inflammation of the pericardium and can occ ...
J. of Sci. Inno. Res., 2017 - Journal of Scientific and Innovative
... filled with Rasa cum Rakta, they undergo Sankocha /contraction forcing the fluid into the two lower Hrtkukis /ventricles through the Kapatas/valves present in between. When the Hrtkukis get filled up, they also undergo Sankocha, forcing out the fluid present in them; the Dakshina Hrtkuksi /right ven ...
... filled with Rasa cum Rakta, they undergo Sankocha /contraction forcing the fluid into the two lower Hrtkukis /ventricles through the Kapatas/valves present in between. When the Hrtkukis get filled up, they also undergo Sankocha, forcing out the fluid present in them; the Dakshina Hrtkuksi /right ven ...
THE ART OF DIAGNOSTICS
... Additional rotation axis of the couch to the left allows positioning the patient at an angle of up to 45 degrees. This position is especially suited for high-quality ultrasound images during an exercise echo examination. A hip belt and a stable shoulder support provide patient safety and a comfortab ...
... Additional rotation axis of the couch to the left allows positioning the patient at an angle of up to 45 degrees. This position is especially suited for high-quality ultrasound images during an exercise echo examination. A hip belt and a stable shoulder support provide patient safety and a comfortab ...
salt in hypertension and heart failure
... A reduction in salt intake is additive to other dietary and lifestyle changes for lowering BP.46,53 The DASH-Sodium trial demonstrated that the combination of a low salt and the DASH diet had a greater effect on BP than either intervention alone, though the combined effects were not as great as the ...
... A reduction in salt intake is additive to other dietary and lifestyle changes for lowering BP.46,53 The DASH-Sodium trial demonstrated that the combination of a low salt and the DASH diet had a greater effect on BP than either intervention alone, though the combined effects were not as great as the ...
Isotretinoin (13-cis-retinoic acid)-associated premature ventricular
... during isotretinoin (Roaccutane, Roche) treatment for nodular facial acne. Presence of documented PVCs -on electrocardiogram and Holter monitoringand the disappearance of these PVCs after cessation of the treatment strongly suggest isotretinoin-related PVCs in our case. The impact of isotretinoin on ...
... during isotretinoin (Roaccutane, Roche) treatment for nodular facial acne. Presence of documented PVCs -on electrocardiogram and Holter monitoringand the disappearance of these PVCs after cessation of the treatment strongly suggest isotretinoin-related PVCs in our case. The impact of isotretinoin on ...
Atrial Electrophysiological Remodeling and Fibrillation in Heart Failure
... human atrium.14 The most recent investigation was conducted by Workman et al.15, whose findings were again different from those of previous reports. In atrial cells isolated from patients in sinus rhythm (right atrial appendage) with a reduced LVEF (,45%), APD90 was shorter than in patients with hig ...
... human atrium.14 The most recent investigation was conducted by Workman et al.15, whose findings were again different from those of previous reports. In atrial cells isolated from patients in sinus rhythm (right atrial appendage) with a reduced LVEF (,45%), APD90 was shorter than in patients with hig ...
Predicting Heart Growth During Puberty: The Muscatine
... Conclusions. Our tracking results suggest predictability in LVM, most likely attributable to normal growth and regulated by the genetic and hormonal influences that affect FFM as well as LVM. Our multiple regression results indicate that during adolescence FFM is an important determinant of heart si ...
... Conclusions. Our tracking results suggest predictability in LVM, most likely attributable to normal growth and regulated by the genetic and hormonal influences that affect FFM as well as LVM. Our multiple regression results indicate that during adolescence FFM is an important determinant of heart si ...
Basic Cardiac Rhythms - UT Health : The University of Toledo
... Sinus rhythm is the normal regular rhythm of the heart set by the natural pacemaker of the heart called the sinoatrial node. It is located in the wall of the right atrium. Normal cardiac impulses start there and are transmitted to the atria and down to the ventricles. ...
... Sinus rhythm is the normal regular rhythm of the heart set by the natural pacemaker of the heart called the sinoatrial node. It is located in the wall of the right atrium. Normal cardiac impulses start there and are transmitted to the atria and down to the ventricles. ...
Better Lesion Creation And Assessment During Catheter
... lesion size for the same current density, which is maintained by increasing power settings when a larger electrode is used.23 It is important to note that lesion size is proportional to electrode-tissue interface temperature in conventional ablation catheters. With cooled tip catheters it is proport ...
... lesion size for the same current density, which is maintained by increasing power settings when a larger electrode is used.23 It is important to note that lesion size is proportional to electrode-tissue interface temperature in conventional ablation catheters. With cooled tip catheters it is proport ...
Reduced reactive O2 species formation and preserved
... overload, impaired mitochondrial bioenergetics, i.e., a mismatch of mitochondrial dinucleotide reduction and oxidation (NADH/NAD, FADH2/FAD), and formation of reactive oxygen species (ROS) by impaired mitochondrial electron transport are key features of normothermic I/R injury [3– 5]. Consequently, ...
... overload, impaired mitochondrial bioenergetics, i.e., a mismatch of mitochondrial dinucleotide reduction and oxidation (NADH/NAD, FADH2/FAD), and formation of reactive oxygen species (ROS) by impaired mitochondrial electron transport are key features of normothermic I/R injury [3– 5]. Consequently, ...
Andropoulos Chapter
... perfusion, potentially creating ischemia from the imbalance of decreased myocardial oxygen delivery and increased oxygen demand. Due to this volume burden, the left ventricle eventually will dilate and hypertrophy producing increased left ventricular end-diastolic pressure followed by increased left ...
... perfusion, potentially creating ischemia from the imbalance of decreased myocardial oxygen delivery and increased oxygen demand. Due to this volume burden, the left ventricle eventually will dilate and hypertrophy producing increased left ventricular end-diastolic pressure followed by increased left ...
Cardiovascular magnetic resonance phase contrast imaging
... of velocities within a pixel, rather than only the weighted average. This can be accomplished with Fourier velocity encoding [3], where the two flow encoding values mentioned earlier, A and B, are replaced by a longer series (e.g., 8 or 16 values) of flow encoding steps separated by constant increme ...
... of velocities within a pixel, rather than only the weighted average. This can be accomplished with Fourier velocity encoding [3], where the two flow encoding values mentioned earlier, A and B, are replaced by a longer series (e.g., 8 or 16 values) of flow encoding steps separated by constant increme ...
i. basic principles of cardiac conduction
... bradydysrhythmias, and AV blocks. Toxicity in these patients is most closely correlated with the degree of hyperkalemia (not the serum digoxin level). Chronic digitalis toxicity generally occurs in older cardiac patients with reduced renal function who are taking diuretics. These patients are usuall ...
... bradydysrhythmias, and AV blocks. Toxicity in these patients is most closely correlated with the degree of hyperkalemia (not the serum digoxin level). Chronic digitalis toxicity generally occurs in older cardiac patients with reduced renal function who are taking diuretics. These patients are usuall ...
PDF
... can be seen in the neonate, but sometimesolder children are diagnosed, after a high blood pressure is detected. When fetal diagnosis of coarctation is made or suspected, delivery must be foreseen in a centre where specialised cardiac care can take place. intravenous Prostaglandines type 1 are used n ...
... can be seen in the neonate, but sometimesolder children are diagnosed, after a high blood pressure is detected. When fetal diagnosis of coarctation is made or suspected, delivery must be foreseen in a centre where specialised cardiac care can take place. intravenous Prostaglandines type 1 are used n ...
Alcohol Septal Ablation in Hypertrophic Obstructive Cardiomyopathy
... graphy is repeated after alcohol injection in order to identify the alcohol impregnation of the target septal area.38 The amount of injected alcohol depends principally on the echocardiographically estimated size of the contrasted septal area and less on the acute haemodynamic effect. This has gradu ...
... graphy is repeated after alcohol injection in order to identify the alcohol impregnation of the target septal area.38 The amount of injected alcohol depends principally on the echocardiographically estimated size of the contrasted septal area and less on the acute haemodynamic effect. This has gradu ...
Mauri Kallinen Cardiovascular Benefits and Potential Hazards of
... Large and consistent beneficial effects with few adverse effects have been found in relation to physical exercise in selected samples of elderly subjects. However, thus far, it has not been confirmed to what extent the effects of physical exercise among elderly people are beneficial or even harmful ...
... Large and consistent beneficial effects with few adverse effects have been found in relation to physical exercise in selected samples of elderly subjects. However, thus far, it has not been confirmed to what extent the effects of physical exercise among elderly people are beneficial or even harmful ...
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.