Atrial Fibrillation and Sudden Cardiac Death
... were due to SCD, and these events were best predicted by the presence of HF (HR: 2.24 [95% CI: 1.75 to 2.87], p < 0.0001) (11). This raises the question, “Is HF the middleman responsible for the observed increased risk of SCD in patients with AF?” In this issue of JACC: Heart Failure, Reinier et al. ...
... were due to SCD, and these events were best predicted by the presence of HF (HR: 2.24 [95% CI: 1.75 to 2.87], p < 0.0001) (11). This raises the question, “Is HF the middleman responsible for the observed increased risk of SCD in patients with AF?” In this issue of JACC: Heart Failure, Reinier et al. ...
Cardiovascular System - Myotonic Dystrophy Foundation
... and presyncope may precede a sudden cardiac death. Milder complaints, such as non-vertiginous dizziness and lightheadedness, should also be considered as potential cardiogenic events. Cardiac conduction defects While patients with severe cardiac conduction block may present with the above-mentioned ...
... and presyncope may precede a sudden cardiac death. Milder complaints, such as non-vertiginous dizziness and lightheadedness, should also be considered as potential cardiogenic events. Cardiac conduction defects While patients with severe cardiac conduction block may present with the above-mentioned ...
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
... based on the structural, histologic, and electrocardiographic findings, observed arrhythmia, and genetic factors as proposed by ARVC task force in 1994 (5). Modified task force criteria were proposed in 2010 (6). The criteria have been modified to incorporate new knowledge and technology to improve ...
... based on the structural, histologic, and electrocardiographic findings, observed arrhythmia, and genetic factors as proposed by ARVC task force in 1994 (5). Modified task force criteria were proposed in 2010 (6). The criteria have been modified to incorporate new knowledge and technology to improve ...
Cardiovascular system The heart
... retention increased the workload on the all ready failing heart .thus a vicious cycle of cardiac decomposition in initiated that will lead to death from cardiac failure . ...
... retention increased the workload on the all ready failing heart .thus a vicious cycle of cardiac decomposition in initiated that will lead to death from cardiac failure . ...
Background
... 20 mg i.v. and aldactone 200mg i.v. He did not cooperated during hospitalization. After heparin treatment reduction of additional echo in the tunnel was observed. Disscusion Comprehensive assessment is mandatory for patients with manifestations of the ‘failing Fontan’ complex, with particular care t ...
... 20 mg i.v. and aldactone 200mg i.v. He did not cooperated during hospitalization. After heparin treatment reduction of additional echo in the tunnel was observed. Disscusion Comprehensive assessment is mandatory for patients with manifestations of the ‘failing Fontan’ complex, with particular care t ...
Normal structure of Heart Heart Failure
... cardiac muscle comprising thick myosin and thin actin filaments • Length: 1.6- 2.2 µm; shorter lengths have overlap of actin & myosin filaments with reduction in contractile force, longer sarcomere lengths enhance contractility (Frank Starling mechanism)→ moderate dilation of heart during diastole → ...
... cardiac muscle comprising thick myosin and thin actin filaments • Length: 1.6- 2.2 µm; shorter lengths have overlap of actin & myosin filaments with reduction in contractile force, longer sarcomere lengths enhance contractility (Frank Starling mechanism)→ moderate dilation of heart during diastole → ...
Cardiac Failure
... After few minutes of an acute heart attack, a prolonged semi-chronic state begins, characterized mainly by two events: (1) retention of fluid by the kidneys. (2) varying degrees of recovery of the heart itself. ...
... After few minutes of an acute heart attack, a prolonged semi-chronic state begins, characterized mainly by two events: (1) retention of fluid by the kidneys. (2) varying degrees of recovery of the heart itself. ...
Clinical significance of aortopulmonary collaterals after arterial
... After arterial switch operation, nearly half of our patients (43%) needed a cardiac catheterisation and half of them (20%) showed hemodynamic relevant MAPCA’s. ...
... After arterial switch operation, nearly half of our patients (43%) needed a cardiac catheterisation and half of them (20%) showed hemodynamic relevant MAPCA’s. ...
Cardiac magnetic resonance imaging in peripartum
... pregnancy or in their early puerperium [1]. The incidence of PPCM shows large geographic variations, ranging from 1 in 300 life births in Haiti and 1 in 1000 life births in South Africa to around 1 in 3000 life births in Europe and the United States [1]. The following diagnostic criteria have been i ...
... pregnancy or in their early puerperium [1]. The incidence of PPCM shows large geographic variations, ranging from 1 in 300 life births in Haiti and 1 in 1000 life births in South Africa to around 1 in 3000 life births in Europe and the United States [1]. The following diagnostic criteria have been i ...
A case of isolated left ventricle diverticulum
... is more frequently localized in the apical or subvalvular area (1). It is important to differ a congenital diverticulum from other causes of acquired ventricular aneurysm, such as those that occur after myocardial infarction, myocarditis or trauma. Ischemic aneurysms consist in fibrotic tissue that ...
... is more frequently localized in the apical or subvalvular area (1). It is important to differ a congenital diverticulum from other causes of acquired ventricular aneurysm, such as those that occur after myocardial infarction, myocarditis or trauma. Ischemic aneurysms consist in fibrotic tissue that ...
A HEART ATTACK OR CARDIAC ARREST?
... when your heart stops pumping blood around the body. It is triggered by a failure of the normal electrical pathway in the heart causing it to go into an abnormal rhythm. The most common cause of a cardiac arrest is an abnormal rhythm called ‘ventricular fibrillation’. ...
... when your heart stops pumping blood around the body. It is triggered by a failure of the normal electrical pathway in the heart causing it to go into an abnormal rhythm. The most common cause of a cardiac arrest is an abnormal rhythm called ‘ventricular fibrillation’. ...
Medtronic Unveils Data Showing Feasibility of New
... sites in the U.S. and Canada, and preliminary data demonstrated that pacing is possible from this extravascular space, with the majority of patients achieving consistent and appropriate ventricular pacing results. These clinical data were further supported by other pre-clinical abstracts presented d ...
... sites in the U.S. and Canada, and preliminary data demonstrated that pacing is possible from this extravascular space, with the majority of patients achieving consistent and appropriate ventricular pacing results. These clinical data were further supported by other pre-clinical abstracts presented d ...
Cardiology Board Review
... Paroxysmal: Atrial fibrillation that lasts from a few seconds to days, then stops on its own Persistent: Does not stop by itself but will stop if cardioverted ...
... Paroxysmal: Atrial fibrillation that lasts from a few seconds to days, then stops on its own Persistent: Does not stop by itself but will stop if cardioverted ...
Slide ()
... A. Left ventricular pressure–volume (P–V) loop, the segments of which correspond to events of the cardiac cycle: diastolic ventricular filling along the passive P–V curve (phase I), isovolumetric contraction (phase II), ventricular ejection (phase III), and isovolumetric relaxation (phase IV). B. Th ...
... A. Left ventricular pressure–volume (P–V) loop, the segments of which correspond to events of the cardiac cycle: diastolic ventricular filling along the passive P–V curve (phase I), isovolumetric contraction (phase II), ventricular ejection (phase III), and isovolumetric relaxation (phase IV). B. Th ...
V. Delgado - European Society of Cardiology
... Assessment of Left Ventricular Dyssynchrony by Speckle Tracking Strain Imaging. Comparison Between Longitudinal, Circumferential, and Radial Strain in Cardiac Resynchronization Therapy. Delgado, V., et al. J Am Coll Cardiol 2008;51:1944-1952 Transcatheter aortic valve implantation: Role of multi-det ...
... Assessment of Left Ventricular Dyssynchrony by Speckle Tracking Strain Imaging. Comparison Between Longitudinal, Circumferential, and Radial Strain in Cardiac Resynchronization Therapy. Delgado, V., et al. J Am Coll Cardiol 2008;51:1944-1952 Transcatheter aortic valve implantation: Role of multi-det ...
Heart Pump Therapy – For Patients
... MCSDs are designed to assist a failing heart. These heart pumps, also known as VADs, can be used to support the left side of the heart (LVAD) and/or the right side of the heart (RVAD). Heart diseases resulting in heart failure (also known as cardiomyopathy) may include coronary artery disease, viral ...
... MCSDs are designed to assist a failing heart. These heart pumps, also known as VADs, can be used to support the left side of the heart (LVAD) and/or the right side of the heart (RVAD). Heart diseases resulting in heart failure (also known as cardiomyopathy) may include coronary artery disease, viral ...
IMPROVING THE ODDS FOR CARDIAC ARREST
... Kevin believes the AED saved his life, along with the bystanders who were trained and ready to keep cardiac arrest from taking another life. ...
... Kevin believes the AED saved his life, along with the bystanders who were trained and ready to keep cardiac arrest from taking another life. ...
Cardiac Muscle Skeletal Muscle Action Potential
... Z line: the actin filaments are attached I: band of actin filaments, titin and Z line A: band of actin-myosin overlap H: clear central zone containing only myosin ...
... Z line: the actin filaments are attached I: band of actin filaments, titin and Z line A: band of actin-myosin overlap H: clear central zone containing only myosin ...
World Congress of Cardiology Scientific Sessions 2010 Featuring
... myocardial deformation during contraction and relaxation, might be good parameters to monitor the recovery of global left ventricular (LV) function after treatment, according to new data presented today at the World Congress of Cardiology (WCC) Scientific Sessions in Beijing, China. Results of a new ...
... myocardial deformation during contraction and relaxation, might be good parameters to monitor the recovery of global left ventricular (LV) function after treatment, according to new data presented today at the World Congress of Cardiology (WCC) Scientific Sessions in Beijing, China. Results of a new ...
Cardiac Muscle
... This is called automaticity or autorhythmicity. • The absolute refractory period is about 250 ms. This prevents tetanic contractions which would interfer with the heart’s ability to pump. ...
... This is called automaticity or autorhythmicity. • The absolute refractory period is about 250 ms. This prevents tetanic contractions which would interfer with the heart’s ability to pump. ...
Chapter 19 THE CIRCULATORY SYSTEM: THE HEART
... • identify the surface features of the heart and correlate them with its internal four-chambered anatomy; • identify the four valves of the heart; • trace the flow of blood through the four chambers and valves of the heart and adjacent blood vessels; and • describe the arteries that nourish the myoc ...
... • identify the surface features of the heart and correlate them with its internal four-chambered anatomy; • identify the four valves of the heart; • trace the flow of blood through the four chambers and valves of the heart and adjacent blood vessels; and • describe the arteries that nourish the myoc ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.