Outcomes of Minimally Invasive Mitral Valve
... increasing the surface of coaptation. The drawback with the undersized annuloplasty technique is the high rate of failure. In a study of 585 patients who underwent undersized annuloplasty surgery during a 17-year period, the authors noted that moderate to severe mitral regurgitation developed in 28% ...
... increasing the surface of coaptation. The drawback with the undersized annuloplasty technique is the high rate of failure. In a study of 585 patients who underwent undersized annuloplasty surgery during a 17-year period, the authors noted that moderate to severe mitral regurgitation developed in 28% ...
- Free Documents
... Hoh et al. and termed V, V, and V. MHC generates about three times higher actinactivated ATPase activities, maximal filament ...
... Hoh et al. and termed V, V, and V. MHC generates about three times higher actinactivated ATPase activities, maximal filament ...
PDF
... Cardiac resynchronization therapy (CRT) can help improve left ventricular systolic function and symptoms of heart failure by restoring the normal AV and intraventricular conduction patterns and synchronous contractility2. According to current guidelines, CRT has class I indication in HF patients wit ...
... Cardiac resynchronization therapy (CRT) can help improve left ventricular systolic function and symptoms of heart failure by restoring the normal AV and intraventricular conduction patterns and synchronous contractility2. According to current guidelines, CRT has class I indication in HF patients wit ...
Ventricular Assist Devices
... *NYHA Class III = marked limitation of physical activity; less than ordinary activity leads to symptoms *NYHA Class IV = inability to carry on any activity without symptoms; symptoms may be present at rest 4. For use to provide temporary left sided mechanical circulatory support as a bridge to cardi ...
... *NYHA Class III = marked limitation of physical activity; less than ordinary activity leads to symptoms *NYHA Class IV = inability to carry on any activity without symptoms; symptoms may be present at rest 4. For use to provide temporary left sided mechanical circulatory support as a bridge to cardi ...
Intermittent Left Anterior Hemiblock during Treadmill Exercise Test*
... mm Hg, and the findings from the rest of his physical examination were normal. His chest x-ray film was normal, and his ECG showed T-wave inversion in leads V , and Ve. Serial determinations of serum enzymes and serial ECGs revealed no evidence of myocardial infarction. The patient underwent a tread ...
... mm Hg, and the findings from the rest of his physical examination were normal. His chest x-ray film was normal, and his ECG showed T-wave inversion in leads V , and Ve. Serial determinations of serum enzymes and serial ECGs revealed no evidence of myocardial infarction. The patient underwent a tread ...
Slideset - European Society of Cardiology
... • CMR with late gadolinium enhancement (LGE) can detect myocardial ...
... • CMR with late gadolinium enhancement (LGE) can detect myocardial ...
Stroke prevention strategies in patients with atrial fibrillation and
... mild-to-moderate heart valve abnormality than in those with moderate-to-severe valvular disease (Figure 3B). In AF patients with a native heart valve disease and no conventional stroke risk factors, 17 centres (33.3%) would not use any OAC, while other centres would consider the use of OAC in patien ...
... mild-to-moderate heart valve abnormality than in those with moderate-to-severe valvular disease (Figure 3B). In AF patients with a native heart valve disease and no conventional stroke risk factors, 17 centres (33.3%) would not use any OAC, while other centres would consider the use of OAC in patien ...
Echocardiography in the Evaluation of a Hypertensive Patient: An
... Echocardiography provides a reliable means of assessing left ventricular systolic function. Left ventricular ejection fraction, as well as endocardial and mid-wall fractional shortening, are the most practical systolic indices that have also been proposed as possible additional predictors of cardiov ...
... Echocardiography provides a reliable means of assessing left ventricular systolic function. Left ventricular ejection fraction, as well as endocardial and mid-wall fractional shortening, are the most practical systolic indices that have also been proposed as possible additional predictors of cardiov ...
Ruptured Left Sinus of Valsalva into Left Venticle
... rare finding [2]. Aneurysms of sinus of Valsalva are usually thought to result from absence of normal elastic and muscular tissue in the aortic sinus leading to thinning of its wall [3]. Presentation of sinus of Valsalva aneurysm is usually varied. Patient may present with chest pain and dyspnea. Ch ...
... rare finding [2]. Aneurysms of sinus of Valsalva are usually thought to result from absence of normal elastic and muscular tissue in the aortic sinus leading to thinning of its wall [3]. Presentation of sinus of Valsalva aneurysm is usually varied. Patient may present with chest pain and dyspnea. Ch ...
lead I
... graphic recording of electric potentials generated by the heart. The signals are detected by means of metal electrodes attached to the extremities and chest wall and are then amplified and recorded by the electrocardiograph. • ECG leads actually display the instantaneous differences in potential bet ...
... graphic recording of electric potentials generated by the heart. The signals are detected by means of metal electrodes attached to the extremities and chest wall and are then amplified and recorded by the electrocardiograph. • ECG leads actually display the instantaneous differences in potential bet ...
From Incidental, Mechanically-Induced Arrhythmias to Reflex
... induced stress. Most likely the arrhythmia is elicited by the whip or abutting the cardiac wall by the lead. This statement comes from personal experience and perception that this type of mechanical triggering of the areas mentioned may be associated with arrhythmia manifestation on purely reflexoge ...
... induced stress. Most likely the arrhythmia is elicited by the whip or abutting the cardiac wall by the lead. This statement comes from personal experience and perception that this type of mechanical triggering of the areas mentioned may be associated with arrhythmia manifestation on purely reflexoge ...
Saving Lives in Schools and Sports
... combined. While most SCA deaths occur in adults, SCA is also the leading cause of death in young athletes and can also strike children participating in normal school or sports activity. Even the most healthy-appearing competitive athletes and students may harbor unsuspected cardiovascular disease wi ...
... combined. While most SCA deaths occur in adults, SCA is also the leading cause of death in young athletes and can also strike children participating in normal school or sports activity. Even the most healthy-appearing competitive athletes and students may harbor unsuspected cardiovascular disease wi ...
Influence of left ventricular lead position relative to scar location on
... Figure 1 Overview of the CircAdapt model and the simulation protocol. (A) shows the closed-loop circulation designed as a network of modules representing atrial and ventricular cardiac walls subdivided into patches, blood vessels (arteries and veins), cardiac valves (AV, aortic valve; MV, mitral val ...
... Figure 1 Overview of the CircAdapt model and the simulation protocol. (A) shows the closed-loop circulation designed as a network of modules representing atrial and ventricular cardiac walls subdivided into patches, blood vessels (arteries and veins), cardiac valves (AV, aortic valve; MV, mitral val ...
Innocent Systolic Murmur Chapter 13
... • Unaffected by respiration; Grade II or Grade III • Heard at any age mid-childhood & in 30% to 40% of young adults • Common in high-output conditions; anemia & anxiety; prominent in trained athletes with slow heart rates & high stroke volume • Turbulence in the brachiocephalic or carotid arteries a ...
... • Unaffected by respiration; Grade II or Grade III • Heard at any age mid-childhood & in 30% to 40% of young adults • Common in high-output conditions; anemia & anxiety; prominent in trained athletes with slow heart rates & high stroke volume • Turbulence in the brachiocephalic or carotid arteries a ...
This educational slide module includes notes and diagrams of slides
... The major components of oxygen delivery (DO2) are depicted on this slide. DO2 reflects the amount of oxygen leaving the heart to be delivered to the tissues. It is determined by multiplying cardiac output (CO) by arterial oxygen content (CaO2). One of the most important goals in managing the critic ...
... The major components of oxygen delivery (DO2) are depicted on this slide. DO2 reflects the amount of oxygen leaving the heart to be delivered to the tissues. It is determined by multiplying cardiac output (CO) by arterial oxygen content (CaO2). One of the most important goals in managing the critic ...
Reduced cardiac volumes in chronic fatigue
... would establish the primacy of blood volume reduction and determine whether there are no primary myocardial deficits, other than those caused by low blood volume. Our findings could provide further evidence to support the role of cardiovascular physiology as an underpinning problem in those with CFS. ...
... would establish the primacy of blood volume reduction and determine whether there are no primary myocardial deficits, other than those caused by low blood volume. Our findings could provide further evidence to support the role of cardiovascular physiology as an underpinning problem in those with CFS. ...
Larger Cell Size in Rabbits With Heart Failure Increases Myocardial
... Background—Patients with heart failure (HF) have an increased QRS duration, usually attributed to decreased conduction velocity (CV) due to ionic remodeling but which may alternatively result from increased heart size or cellular uncoupling. We investigated the relationship between QRS width, heart ...
... Background—Patients with heart failure (HF) have an increased QRS duration, usually attributed to decreased conduction velocity (CV) due to ionic remodeling but which may alternatively result from increased heart size or cellular uncoupling. We investigated the relationship between QRS width, heart ...
diastolic-murmurs
... Mid diastolic and/or presystolic Low pitched best heard with bell Heavy jet of aortic regurgitation impinging on the anterior leaflet of mitral valve preventing adequate opening of the valve and creating turbulence to flow from left atrium to ventricle in diastole with premature closure of mitral va ...
... Mid diastolic and/or presystolic Low pitched best heard with bell Heavy jet of aortic regurgitation impinging on the anterior leaflet of mitral valve preventing adequate opening of the valve and creating turbulence to flow from left atrium to ventricle in diastole with premature closure of mitral va ...
Full Text - Archives of Cardiovascular Imaging
... Coronary angiography should be performed in accordance with the current guidelines (31, 32). Revascularization either by surgery or by percutaneous coronary intervention increases the patient’s chance of surviving cardiogenic shock. We will discuss below that many studies have supported surgical rev ...
... Coronary angiography should be performed in accordance with the current guidelines (31, 32). Revascularization either by surgery or by percutaneous coronary intervention increases the patient’s chance of surviving cardiogenic shock. We will discuss below that many studies have supported surgical rev ...
Expert Consensus for Multi-Modality Imaging Evaluation of
... high-dose radiation exposure on the thorax is mainly used in the context of adjuvant radiotherapy after conservative or radical breast surgery, adjuvant or exclusive radiotherapy of lung and oesophageal cancer, and as a complement to systemic treatment in lymphoma. Irradiation of the heart increases ...
... high-dose radiation exposure on the thorax is mainly used in the context of adjuvant radiotherapy after conservative or radical breast surgery, adjuvant or exclusive radiotherapy of lung and oesophageal cancer, and as a complement to systemic treatment in lymphoma. Irradiation of the heart increases ...
Identification of ECG Arrhythmias using Phase Space Reconstruction
... The attractors were learned using neural networks with 100 inputs, one output, and two hidden layers. The first and second hidden layers consisted of 10 and 3 neurons with tan-sigmoid transfer functions, respectively. The output layer was a log-sigmoid neuron. The neural net was learned using the Le ...
... The attractors were learned using neural networks with 100 inputs, one output, and two hidden layers. The first and second hidden layers consisted of 10 and 3 neurons with tan-sigmoid transfer functions, respectively. The output layer was a log-sigmoid neuron. The neural net was learned using the Le ...
The Effects of External Electric Currents on the Heart
... terminated by external application of electric countershock across the unopened chest.11-'5 In this report we also show that countershock electric current of the same type that has long been used in open-chest defibrillation will, when applied across the unopened chest, instantaneously terminate atr ...
... terminated by external application of electric countershock across the unopened chest.11-'5 In this report we also show that countershock electric current of the same type that has long been used in open-chest defibrillation will, when applied across the unopened chest, instantaneously terminate atr ...
Intensive Care Unit Management of Transcatheter Aortic Valve
... untreated. Despite advances in surgical, anesthetic, and critical care management, there is a 16.4% in-hospital mortality rate in high-risk patients undergoing surgical aortic valve replacement (SAVR) as well as a high associated rate of prolonged length of stay in the intensive care unit (ICU) and ...
... untreated. Despite advances in surgical, anesthetic, and critical care management, there is a 16.4% in-hospital mortality rate in high-risk patients undergoing surgical aortic valve replacement (SAVR) as well as a high associated rate of prolonged length of stay in the intensive care unit (ICU) and ...
Left Ventricular Systolic and Diastolic Function
... coronary artery disease and arterial hypertension were studied. Diagnosis of DAN was established by autonomic nervous function (ANF) tests, and LV systolic and diastolic functions were assessed by radionuclide ventriculography at rest. RESULTS — There were 24 patients who had definite DAN, establish ...
... coronary artery disease and arterial hypertension were studied. Diagnosis of DAN was established by autonomic nervous function (ANF) tests, and LV systolic and diastolic functions were assessed by radionuclide ventriculography at rest. RESULTS — There were 24 patients who had definite DAN, establish ...
Coronary artery bypass surgery in patients with impaired left
... artery bypass surgery were prospectively studied. Echocardiography and thallium-201 myocardial scintigraphy were preoperatively performed to measure the left ventricular function and to assess myocardial viability. Postoperative echocardiography was done before discharge and six months later to eval ...
... artery bypass surgery were prospectively studied. Echocardiography and thallium-201 myocardial scintigraphy were preoperatively performed to measure the left ventricular function and to assess myocardial viability. Postoperative echocardiography was done before discharge and six months later to eval ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.