![Using the Surface Electrocardiogram to Localize the Origin of](http://s1.studyres.com/store/data/006384675_1-ff8d2007b3b1bbd22f7aff0247ba625e-300x300.png)
Using the Surface Electrocardiogram to Localize the Origin of
... AIV = anterior interventricular vein; GCV = great cardiac vein; AMC = aortomitral continuity; ASOV = aortic sinus of Valsalva; RBBB/LBBB = right/ left bundle branch block; LCC = left coronary cusp; RCC = right coronary cusp; OT = outflow tract; MA = mitral ...
... AIV = anterior interventricular vein; GCV = great cardiac vein; AMC = aortomitral continuity; ASOV = aortic sinus of Valsalva; RBBB/LBBB = right/ left bundle branch block; LCC = left coronary cusp; RCC = right coronary cusp; OT = outflow tract; MA = mitral ...
Treatment-Specific Approaches for Analysis and Control of
... A Left Ventricular Assist Device (LVAD) is a mechanical pump that helps patients with heart failure conditions. This rotary pump works in parallel to the ailing heart and provides an alternative path for blood flow from the weak left ventricle to the aorta. The LVAD is controlled by the power suppli ...
... A Left Ventricular Assist Device (LVAD) is a mechanical pump that helps patients with heart failure conditions. This rotary pump works in parallel to the ailing heart and provides an alternative path for blood flow from the weak left ventricle to the aorta. The LVAD is controlled by the power suppli ...
Optimal pacing strategies for coming off CPB
... Typically, single ventricle or AV sequential pacing is employed to treat the underlying electrophysiologic or mechanical cardiac dysfunction after cardiac surgery. However, hemodynamic benefits observed with single ventricle or AV sequential pacing can be limited, especially in patients with substan ...
... Typically, single ventricle or AV sequential pacing is employed to treat the underlying electrophysiologic or mechanical cardiac dysfunction after cardiac surgery. However, hemodynamic benefits observed with single ventricle or AV sequential pacing can be limited, especially in patients with substan ...
Advances in Arrhythmia and Electrophysiology
... such as myocardial rupture and acute mitral valve insufficiency, and thus, at these left ventricular pressures, our model becomes one of cardiac contusion. ...
... such as myocardial rupture and acute mitral valve insufficiency, and thus, at these left ventricular pressures, our model becomes one of cardiac contusion. ...
Analysis of the Heart Sounds and Murmurs of Fetuses - REAL-PhD
... decisions have to be made about any further, more extensive examinations or special care. However, it seems that the real potential of heart sound analysis is still not exploited, especially in the field of fetal-neonatal examinations. The aim of this thesis work has been twofold. First, recent stud ...
... decisions have to be made about any further, more extensive examinations or special care. However, it seems that the real potential of heart sound analysis is still not exploited, especially in the field of fetal-neonatal examinations. The aim of this thesis work has been twofold. First, recent stud ...
Human coronary sinus — from Galen to modern times
... Ludwik Karol Teichmann (1823–1895), head of Anatomy Dept. of Jagiellonian University in Krakow. Thank to technical education he managed to construct a syringe for injections of masses. In 20th century plastic masses were applied for injection and preparation of corrosion specimens. Their basal compo ...
... Ludwik Karol Teichmann (1823–1895), head of Anatomy Dept. of Jagiellonian University in Krakow. Thank to technical education he managed to construct a syringe for injections of masses. In 20th century plastic masses were applied for injection and preparation of corrosion specimens. Their basal compo ...
Mitochondria in heart failure
... and a cost in the USA of $28 billion annually for treatment.3 HF is a complex multifactorial syndrome characterized by mechanical dysfunction of the myocardium and the inability of the heart to supply adequate amounts of blood to meet the perfusion and metabolic needs of the body. Defects in bioener ...
... and a cost in the USA of $28 billion annually for treatment.3 HF is a complex multifactorial syndrome characterized by mechanical dysfunction of the myocardium and the inability of the heart to supply adequate amounts of blood to meet the perfusion and metabolic needs of the body. Defects in bioener ...
Pulmonary regurgitation in congenital heart disease
... a stiff right ventricle is the antegrade transmission of the atrial ‘a’ wave into the main pulmonary artery, in all phases of respiration, with the stiff right ventricle in diastole acting as a passive conduit. This can either be demonstrated using pressure measurements (figure 1) or more commonly b ...
... a stiff right ventricle is the antegrade transmission of the atrial ‘a’ wave into the main pulmonary artery, in all phases of respiration, with the stiff right ventricle in diastole acting as a passive conduit. This can either be demonstrated using pressure measurements (figure 1) or more commonly b ...
Interventional Cardiology
... The indications for catheter ablation of arrhythmias in the CHD population are similar to the non-CHD population including significant symptoms, syncope or hemodynamic instability particularly when there has been failure or intolerance of medical therapy. Antiarrhythmic medications, such as beta blo ...
... The indications for catheter ablation of arrhythmias in the CHD population are similar to the non-CHD population including significant symptoms, syncope or hemodynamic instability particularly when there has been failure or intolerance of medical therapy. Antiarrhythmic medications, such as beta blo ...
Paper - Journal of American Science
... the most important health risks as they are responsible for more than 50% of total mortality. Among them, ischemic heart disease is the leading cause of morbidity and mortality (Ostadal 2009). In coronary patients aging, diabetes and other factors interfere with most of cardioprotectants as well as ...
... the most important health risks as they are responsible for more than 50% of total mortality. Among them, ischemic heart disease is the leading cause of morbidity and mortality (Ostadal 2009). In coronary patients aging, diabetes and other factors interfere with most of cardioprotectants as well as ...
Doppler Examination of the Fetal Pulmonary Venous Circulation
... pulmonary venous velocity waveform was normal with a positive A-wave. In the sealed foramen ovale, however, the waveform showed a nearly to-and-fro pattern (Fig. 31.12), since all blood flow coming from the lung returns back into the lung. This is associated with congested pulmonary veins. This chro ...
... pulmonary venous velocity waveform was normal with a positive A-wave. In the sealed foramen ovale, however, the waveform showed a nearly to-and-fro pattern (Fig. 31.12), since all blood flow coming from the lung returns back into the lung. This is associated with congested pulmonary veins. This chro ...
Geriatric Cardiology – You CAN treat Angina! Part 1
... * Symptom: Chest pain. * HR Response: HR failed to increase appropriately, likely due to medications. * BP Response: Appropriate. * ECG Abnormalities: ECG changes could not be interpreted due to abnormal baseline ECG. * Arrhythmia: Frequent VPDs. * *Review of raw data shows: diaphragmatic artifact * ...
... * Symptom: Chest pain. * HR Response: HR failed to increase appropriately, likely due to medications. * BP Response: Appropriate. * ECG Abnormalities: ECG changes could not be interpreted due to abnormal baseline ECG. * Arrhythmia: Frequent VPDs. * *Review of raw data shows: diaphragmatic artifact * ...
Echocardiographic parameters in healthy young adult Sphynx cats
... short axis view, presence of abnormal global geometry in the long axis view, normal insertion of mitral chordae tendinea, presence of systolic anterior motion of the mitral valve associated with aortic flow turbulence and/ or mitral regurgitation using color Doppler were used to classify the populati ...
... short axis view, presence of abnormal global geometry in the long axis view, normal insertion of mitral chordae tendinea, presence of systolic anterior motion of the mitral valve associated with aortic flow turbulence and/ or mitral regurgitation using color Doppler were used to classify the populati ...
Full Text
... of electrophysiologic studies: AVNRT induced at baseline and VT, the same as the clinically documented arrhythmia. One unique feature of our case is the demonstration of the interrelationships of 2 different types of tachycardia. VT was initiated by termination of AVNRT, which was induced by double ...
... of electrophysiologic studies: AVNRT induced at baseline and VT, the same as the clinically documented arrhythmia. One unique feature of our case is the demonstration of the interrelationships of 2 different types of tachycardia. VT was initiated by termination of AVNRT, which was induced by double ...
Dilated Right Pulmonary Veins in Mitral Insufficiency
... in mitral stenosis and left heart failure. These have Regurgitation of contrast substance during angi emphasized the dilatation of the superior pulmonary ography into the pulmonary veins has been reveins and the decrease in caliber of the inferior ported. Ross and Criley’3 and Arvidsson’4 both pulmo ...
... in mitral stenosis and left heart failure. These have Regurgitation of contrast substance during angi emphasized the dilatation of the superior pulmonary ography into the pulmonary veins has been reveins and the decrease in caliber of the inferior ported. Ross and Criley’3 and Arvidsson’4 both pulmo ...
Dilated Right Pulmonary Veins in Mitral Insufficiency
... in mitral stenosis and left heart failure. These have Regurgitation of contrast substance during angi emphasized the dilatation of the superior pulmonary ography into the pulmonary veins has been reveins and the decrease in caliber of the inferior ported. Ross and Criley’3 and Arvidsson’4 both pulmo ...
... in mitral stenosis and left heart failure. These have Regurgitation of contrast substance during angi emphasized the dilatation of the superior pulmonary ography into the pulmonary veins has been reveins and the decrease in caliber of the inferior ported. Ross and Criley’3 and Arvidsson’4 both pulmo ...
Appraisal consultation document
... (n=4212). Both treatments were given in combination with standard care (including beta blockers and aldosterone antagonists). The trial included people with symptomatic heart failure – that is, New York Heart Association (NYHA) class II to IV – with reduced left ventricular ejection fraction (LVEF) ...
... (n=4212). Both treatments were given in combination with standard care (including beta blockers and aldosterone antagonists). The trial included people with symptomatic heart failure – that is, New York Heart Association (NYHA) class II to IV – with reduced left ventricular ejection fraction (LVEF) ...
Severe paediatric pulmonary hypertension: new management strategies REVIEW A Rashid, D Ivy
... output, and potentially reverse some of the pulmonary vascular changes noted in the lung. Figure 1 shows our long term strategy for the treatment of pulmonary hypertension. Children who respond acutely to vasodilator testing with nitric oxide or epoprostenol should initially be treated with calcium ...
... output, and potentially reverse some of the pulmonary vascular changes noted in the lung. Figure 1 shows our long term strategy for the treatment of pulmonary hypertension. Children who respond acutely to vasodilator testing with nitric oxide or epoprostenol should initially be treated with calcium ...
SERIES ‘‘PULMONARY HYPERTENSION: BASIC CONCEPTS FOR PRACTICAL MANAGEMENT’’
... assessment of left and right ventricular function. The SSFP technique is the preferred CMR pulse sequence for acquisition of volumetric datasets of the left and right ventricles. Cine mode MRI allows regional and global systolic function to be evaluated because wall motion abnormalities can be ident ...
... assessment of left and right ventricular function. The SSFP technique is the preferred CMR pulse sequence for acquisition of volumetric datasets of the left and right ventricles. Cine mode MRI allows regional and global systolic function to be evaluated because wall motion abnormalities can be ident ...
WQRS-internist
... Patient has serious signs or symptoms? Look for Chest pain (ischemic? possible ACS?) Shortness of breath (lungs ‘wet’? possible CHF?) Hypotension Decreased level of consciousness ...
... Patient has serious signs or symptoms? Look for Chest pain (ischemic? possible ACS?) Shortness of breath (lungs ‘wet’? possible CHF?) Hypotension Decreased level of consciousness ...
Original Article
... and vascular fibrosis, and blood samples were evaluated for cardiac brain natriuretic peptide, choline, and TMAO levels. Pulmonary edema, cardiac enlargement, and left ventricular ejection fraction were significantly (P<0.05, each) worse in mice fed either TMAO- or choline-supplemented diets when co ...
... and vascular fibrosis, and blood samples were evaluated for cardiac brain natriuretic peptide, choline, and TMAO levels. Pulmonary edema, cardiac enlargement, and left ventricular ejection fraction were significantly (P<0.05, each) worse in mice fed either TMAO- or choline-supplemented diets when co ...
Echocardiographic Evaluation of Pericardial Disease
... Inferior vena cava (IVC) plethora (dilated IVC with < 50% inspiratory reduction in diameter near the IVC-RA junction; this a sensitive (97%) but nonspecific indicator of tamponade) Note that Doppler evaluation of tamponade physiology in spontaneously breathing patients can also provide useful info ...
... Inferior vena cava (IVC) plethora (dilated IVC with < 50% inspiratory reduction in diameter near the IVC-RA junction; this a sensitive (97%) but nonspecific indicator of tamponade) Note that Doppler evaluation of tamponade physiology in spontaneously breathing patients can also provide useful info ...
Pericardial Diseases: Tamponade and constriction
... Inferior vena cava (IVC) plethora (dilated IVC with < 50% inspiratory reduction in diameter near the IVC-RA junction; this a sensitive (97%) but nonspecific indicator of tamponade) Note that Doppler evaluation of tamponade physiology in spontaneously breathing patients can also provide useful info ...
... Inferior vena cava (IVC) plethora (dilated IVC with < 50% inspiratory reduction in diameter near the IVC-RA junction; this a sensitive (97%) but nonspecific indicator of tamponade) Note that Doppler evaluation of tamponade physiology in spontaneously breathing patients can also provide useful info ...
Detection of Intracardiac and Intrapulmonary Shunts
... PFO and an ASD because an ASD is less likely to restrict left-to-right shunting and therefore may present a greater risk of right heart volume overload and associated sequelae. An ostium primum ASD results from the incomplete fusion of the inferior and superior endocardial cushions and therefore is ...
... PFO and an ASD because an ASD is less likely to restrict left-to-right shunting and therefore may present a greater risk of right heart volume overload and associated sequelae. An ostium primum ASD results from the incomplete fusion of the inferior and superior endocardial cushions and therefore is ...
Contractile properties of thermally acclimated trout heart
... In mammals, atrial systole occurs immediately before ventricular systole and thus allows atrial contraction to augment the volume of blood in the ventricles at end-diastole when ventricular volume determines the strength of the ventricular contraction. The important timing of atrial systole is made ...
... In mammals, atrial systole occurs immediately before ventricular systole and thus allows atrial contraction to augment the volume of blood in the ventricles at end-diastole when ventricular volume determines the strength of the ventricular contraction. The important timing of atrial systole is made ...
Heart failure
![](https://commons.wikimedia.org/wiki/Special:FilePath/Heartfailure.jpg?width=300)
Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The terms chronic heart failure (CHF) or congestive cardiac failure (CCF) are often used interchangeably with congestive heart failure. Signs and symptoms commonly include shortness of breath, excessive tiredness, and leg swelling. The shortness of breath is usually worse with exercise, while lying down, and may wake the person at night. A limited ability to exercise is also a common feature.Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. These cause heart failure by changing either the structure or the functioning of the heart. There are two main types of heart failure: heart failure due to left ventricular dysfunction and heart failure with normal ejection fraction depending on if the ability of the left ventricle to contract is affected, or the heart's ability to relax. The severity of disease is usually graded by the degree of problems with exercise. Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia and thyroid disease.The condition is diagnosed based on the history of the symptoms and a physical examination with confirmation by echocardiography. Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause. Treatment depends on the severity and cause of the disease. In people with chronic stable mild heart failure, treatment commonly consists of lifestyle modifications such as stopping smoking, physical exercise, and dietary changes, as well as medications. In those with heart failure due to left ventricular dysfunction, angiotensin converting enzyme inhibitors or angiotensin receptor blockers along with beta blockers are recommended. For those with severe disease, aldosterone antagonists, or hydralazine plus a nitrate may be used. Diuretics are useful for preventing fluid retention. Sometimes, depending on the cause, an implanted device such as a pacemaker or an implantable cardiac defibrillator may be recommended. In some moderate or severe cases cardiac resynchronization therapy (CRT) may be suggested or cardiac contractility modulation may be of benefit. A ventricular assist device or occasionally a heart transplant may be recommended in those with severe disease despite all other measures.Heart failure is a common, costly, and potentially fatal condition. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 6–10%. In the year after diagnosis the risk of death is about 35% after which it decreases to below 10% each year. This is similar to the risks with a number of types of cancer. In the United Kingdom the disease is the reason for 5% of emergency hospital admissions. Heart failure has been known since ancient times with the Ebers papyrus commenting on it around 1550 BCE.