MITRAL REGURGITATION IN LEFT VENTRICULAR
... by Bradford G. Fisher Masters of Science in Bioengineering San Diego State University, 2010 The heart pumps blood around the body. Its most important component is the left ventricle (LV) because it pumps freshly oxygenated blood out to the entire body. Heart failure is when a diseased heart cannot p ...
... by Bradford G. Fisher Masters of Science in Bioengineering San Diego State University, 2010 The heart pumps blood around the body. Its most important component is the left ventricle (LV) because it pumps freshly oxygenated blood out to the entire body. Heart failure is when a diseased heart cannot p ...
Feasibility of a Technique for Branch Pulmonary Artery Stent
... Johnson Interventional Systems, Warren, N J ) in the treatment of congenital heart disease (1-6). The current delivery technique is complicated by the inability to advance a large sheath or stent across branch pulmonary arteries that are severely stenotic. I t is also complicated by kinking of the s ...
... Johnson Interventional Systems, Warren, N J ) in the treatment of congenital heart disease (1-6). The current delivery technique is complicated by the inability to advance a large sheath or stent across branch pulmonary arteries that are severely stenotic. I t is also complicated by kinking of the s ...
Modification of ventricular repolarization in silent long QT
... the outward currents, particularly the IKs or IKr potassium currents and/or enhancement of the inward currents (INa) during phases 2 and 3 of the action potential (Ackerman and Clapham 1997). The different APD lengths between layers of cells or areas of the heart is named dispersion of repolarizatio ...
... the outward currents, particularly the IKs or IKr potassium currents and/or enhancement of the inward currents (INa) during phases 2 and 3 of the action potential (Ackerman and Clapham 1997). The different APD lengths between layers of cells or areas of the heart is named dispersion of repolarizatio ...
Cardiovascular and Autonomic Nervous System Function: Impact of
... telling of a healthy heart. Alterations in HRV can be utilized to assess autonomic imbalance in healthy and diseased states. Kleiger et al. (1987) was a landmark study demonstrating decreased parasympathetic tone, measured by HRV, independently predicts mortality in postmyocardial infarction patient ...
... telling of a healthy heart. Alterations in HRV can be utilized to assess autonomic imbalance in healthy and diseased states. Kleiger et al. (1987) was a landmark study demonstrating decreased parasympathetic tone, measured by HRV, independently predicts mortality in postmyocardial infarction patient ...
Apical Hypertrophic Cardiomyopathy
... had previously reported chronic New York Heart Association (NYHA) functional class II symptoms that had progressed to NYHA functional class III–IV during the months preceding admission. She had dyspnea accompanied by chest pain and heaviness, both at rest and upon exertion, as well as fatigue and ge ...
... had previously reported chronic New York Heart Association (NYHA) functional class II symptoms that had progressed to NYHA functional class III–IV during the months preceding admission. She had dyspnea accompanied by chest pain and heaviness, both at rest and upon exertion, as well as fatigue and ge ...
Valvular Regurgitation - Gvsu - Grand Valley State University
... Diastole: free margins of the cusps coapt tightly preventing the backflow of blood into the ventricle. “Y” shape in PSAX (sometimes referred to as inverted Mercedes-Benz sign) ...
... Diastole: free margins of the cusps coapt tightly preventing the backflow of blood into the ventricle. “Y” shape in PSAX (sometimes referred to as inverted Mercedes-Benz sign) ...
Differences in Sarcoplasmic Reticulum Ca2+ Leak Characteristics
... symptoms and prognosis are very similar (17, 19, 38, 47). DHF refers to an abnormality of diastolic distensibility, filling or relaxation of the left ventricle with a normal left ventricular (LV) ejection fraction (EF). DHF is also referred to as heart failure with normal left ventricular ejection f ...
... symptoms and prognosis are very similar (17, 19, 38, 47). DHF refers to an abnormality of diastolic distensibility, filling or relaxation of the left ventricle with a normal left ventricular (LV) ejection fraction (EF). DHF is also referred to as heart failure with normal left ventricular ejection f ...
What You Should Know About Your Pacemaker Patient Manual
... Congestive Heart Failure (CHF) – is a condition in which the heart fails to pump enough blood to the rest of the body, resulting in a congestion of blood in the lungs and other tissue. CHF often involves mechanical asynchrony. Mechanical asynchrony is when the right and left ventricle do not pump a ...
... Congestive Heart Failure (CHF) – is a condition in which the heart fails to pump enough blood to the rest of the body, resulting in a congestion of blood in the lungs and other tissue. CHF often involves mechanical asynchrony. Mechanical asynchrony is when the right and left ventricle do not pump a ...
cardiovascular magnetic resonance and computed
... levels, although not meeting criteria for diabetes, are nevertheless too high to be considered normal and have a relatively high risk for the future development of diabetes. The onset of type 2 diabetes is gradual, with most individuals progressing through a state of prediabetes, which is defined as ...
... levels, although not meeting criteria for diabetes, are nevertheless too high to be considered normal and have a relatively high risk for the future development of diabetes. The onset of type 2 diabetes is gradual, with most individuals progressing through a state of prediabetes, which is defined as ...
Cardiac Mapping Systems
... magnetic field technology to reconstruct 3D maps and activation sequences of the chamber of interest (16-18). In short, the CARTOTMXp (or 4.2) System uses one reference catheter (REFSTARTM), one mapping catheter (NAVI-STARTM), and a pad that transmits three ultralow magnetic fields (Fig. 2). The CAR ...
... magnetic field technology to reconstruct 3D maps and activation sequences of the chamber of interest (16-18). In short, the CARTOTMXp (or 4.2) System uses one reference catheter (REFSTARTM), one mapping catheter (NAVI-STARTM), and a pad that transmits three ultralow magnetic fields (Fig. 2). The CAR ...
a finite element model of the human left ventricular systole, taking
... The heart fulfils a vital role in the human body. It pumps blood, thereby delivering oxygen and nutrients to the body and removing waste products. It is constantly adjusting and adapting its activity to meet the body’s needs regardless whether we are sleeping or engaging in physical activities. It w ...
... The heart fulfils a vital role in the human body. It pumps blood, thereby delivering oxygen and nutrients to the body and removing waste products. It is constantly adjusting and adapting its activity to meet the body’s needs regardless whether we are sleeping or engaging in physical activities. It w ...
Left Septal Atrial Tachycardias: Electrocardiographic
... Left atrial endocardial mapping was performed during tachycardia or with atrial ectopy in order to record the earliest activation signal. Radiofrequency application was attempted in 2 patients on the right interatrial septum without success prior to transseptal puncture. Uncomplicated transeptal acc ...
... Left atrial endocardial mapping was performed during tachycardia or with atrial ectopy in order to record the earliest activation signal. Radiofrequency application was attempted in 2 patients on the right interatrial septum without success prior to transseptal puncture. Uncomplicated transeptal acc ...
Development and Validation of an Ambulatory Heart Rate Variability
... flows to the left atrium and at the same time deoxygenated blood from the peripheral circulation enters the right atrium through the superior and inferior vena cavae. After this atrial filling, both atria contract and pump the blood into the ventricles. During the subsequent contraction phase, systo ...
... flows to the left atrium and at the same time deoxygenated blood from the peripheral circulation enters the right atrium through the superior and inferior vena cavae. After this atrial filling, both atria contract and pump the blood into the ventricles. During the subsequent contraction phase, systo ...
Infective Endocarditis - Pennine Acute Hospitals NHS Trust
... concern due to increasing numbers of invasive procedures carried out in 21st century health care, with mortality within this group more than 50% (Fitzsimmons et al. 2010). Intravascular devices such as cardiac pacemakers, internal defibrillators as well as long term indwelling vascular catheters can ...
... concern due to increasing numbers of invasive procedures carried out in 21st century health care, with mortality within this group more than 50% (Fitzsimmons et al. 2010). Intravascular devices such as cardiac pacemakers, internal defibrillators as well as long term indwelling vascular catheters can ...
Targeted Neonatal Echocardiography in the Neonatal Intensive
... pericardium. Intrapericardial pressure is also reduced with spontaneous ventilation producing intrathoracic pressures that are lower than atmospheric. These right-heart changes help the left ventricle adapt to the increased preload resulting from increased pulmonary venous return.18 In the term infa ...
... pericardium. Intrapericardial pressure is also reduced with spontaneous ventilation producing intrathoracic pressures that are lower than atmospheric. These right-heart changes help the left ventricle adapt to the increased preload resulting from increased pulmonary venous return.18 In the term infa ...
UTILISATION OF CARDIAC MAGNETIC RESONANCE
... then progressed quickly to the contrasted study for myocardial viability and perfusion in the 1990s.1 From a 0.1 Tesla MRI in the early days, technology has now progressed such that the use of a 3.0 Tesla scanners and dedicated third party cardiac analysis software are not uncommonly encountered in ...
... then progressed quickly to the contrasted study for myocardial viability and perfusion in the 1990s.1 From a 0.1 Tesla MRI in the early days, technology has now progressed such that the use of a 3.0 Tesla scanners and dedicated third party cardiac analysis software are not uncommonly encountered in ...
Task Force Report Task Force on Sudden Cardiac Death of the
... deaths that occur unwitnessed, such as being found dead in bed. Most authors have erred in favour of classifying such events as SCDs, even though it is often impossible to define when the patient was last alive or for what duration he suffered any symptoms prior to death. This document will propose r ...
... deaths that occur unwitnessed, such as being found dead in bed. Most authors have erred in favour of classifying such events as SCDs, even though it is often impossible to define when the patient was last alive or for what duration he suffered any symptoms prior to death. This document will propose r ...
Effectiveness of Implantable Cardioverter Defibrillators for Primary
... guidelines, indications for ICD therapy for primary prevention of SCD include patients with left ventricular ejection fractions (LVEFs) of 35% or less due to previous myocardial infarction (MI) who are at least 40 days post-MI and are in NYHA (New York Heart Association) class II or III; patients wi ...
... guidelines, indications for ICD therapy for primary prevention of SCD include patients with left ventricular ejection fractions (LVEFs) of 35% or less due to previous myocardial infarction (MI) who are at least 40 days post-MI and are in NYHA (New York Heart Association) class II or III; patients wi ...
8 Proximal Anomalous Connections of Coronary Arteries in Adults
... In the normal heart, the coronary arteries arise from the upper half of sinuses, close to the sinotubular junction in most of cases (Muriago et al., 1997). A connection above the level of the sinotubular junction is possible. The coronary orifices are not always located in the centre of aortic sinus ...
... In the normal heart, the coronary arteries arise from the upper half of sinuses, close to the sinotubular junction in most of cases (Muriago et al., 1997). A connection above the level of the sinotubular junction is possible. The coronary orifices are not always located in the centre of aortic sinus ...
Timely Pulmonary Valve Replacement May Allow Preservation of
... tracking for LV strain analysis. However, the LV in TOF has been shown to suffer together with the RV in the long term. Indeed, adult patients with repaired TOF are presenting with an excess of early onset heart failure (15). This notion is supported by small animal models of chronic RV pressure loa ...
... tracking for LV strain analysis. However, the LV in TOF has been shown to suffer together with the RV in the long term. Indeed, adult patients with repaired TOF are presenting with an excess of early onset heart failure (15). This notion is supported by small animal models of chronic RV pressure loa ...
Full Text
... administered self-care skills by HF patients, coupled with a lack of self-confidence in the capacity to perform those skills. When lifestyle changes and diet control are poorly implemented, the result is often repeated hospitalization.2 An earlier study determined that two-thirds of HF patient readm ...
... administered self-care skills by HF patients, coupled with a lack of self-confidence in the capacity to perform those skills. When lifestyle changes and diet control are poorly implemented, the result is often repeated hospitalization.2 An earlier study determined that two-thirds of HF patient readm ...
Cardiac Pacing: Patient Management
... Methods or Routes Used for temporary pacing ................................................................ 4 1. Epicardial pacing ............................................................................................................... 4 2. Transthoracic (non-invasive) pacing ............... ...
... Methods or Routes Used for temporary pacing ................................................................ 4 1. Epicardial pacing ............................................................................................................... 4 2. Transthoracic (non-invasive) pacing ............... ...
Pericardial Diseases
... Constrictive pericarditis occurs rarely as a complication of cardiac surgery. Its incidence is estimated to only be 0.2–0.3% of cardiac operations. However, cardiac surgery is emerging as an important cause of constrictive pericarditis because so many cardiac surgeries are performed in the United St ...
... Constrictive pericarditis occurs rarely as a complication of cardiac surgery. Its incidence is estimated to only be 0.2–0.3% of cardiac operations. However, cardiac surgery is emerging as an important cause of constrictive pericarditis because so many cardiac surgeries are performed in the United St ...
Three-dimensional echocardiographic planimetry of
... Onset of murmur (years) Ejection fraction (%) ...
... Onset of murmur (years) Ejection fraction (%) ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.