Inappropriate ICD Shocks_Incidence, Predictors and
... Defibrillators were programmed as follows: ventricular arrhythmia faster than 150 beats/min was monitored by the device without consequent defibrillator therapy (zone 1). Ventricular arrhythmias faster than 188 beats/min were initially attempted to be terminated with 2 bursts of anti-tachycardia pac ...
... Defibrillators were programmed as follows: ventricular arrhythmia faster than 150 beats/min was monitored by the device without consequent defibrillator therapy (zone 1). Ventricular arrhythmias faster than 188 beats/min were initially attempted to be terminated with 2 bursts of anti-tachycardia pac ...
The role of altered fatty acid metabolism in cardiomyopathy and
... The heart pumps blood to supply oxygen and nutrients to the tissues in our body. The importance of the heart was first recognized in the 4 th century BC, by the Greek philosopher Aristotle from his observation in chick embryos that the heart was formed first before the rest of the internal organs. H ...
... The heart pumps blood to supply oxygen and nutrients to the tissues in our body. The importance of the heart was first recognized in the 4 th century BC, by the Greek philosopher Aristotle from his observation in chick embryos that the heart was formed first before the rest of the internal organs. H ...
Percutaneous Left Atrial Appendage Closure Devices for Stroke
... Stroke is the most serious complication of atrial fibrillation (AF). The estimated incidence of stroke in nontreated patients with AF is 5% per year. Stroke associated with AF is primarily embolic in nature, tends to be more severe than the typical ischemic stroke, and causes higher rates of mortali ...
... Stroke is the most serious complication of atrial fibrillation (AF). The estimated incidence of stroke in nontreated patients with AF is 5% per year. Stroke associated with AF is primarily embolic in nature, tends to be more severe than the typical ischemic stroke, and causes higher rates of mortali ...
Management of acute myocardial infarction in patients presenting
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
... be focused on the detection of other cardiac or non-cardiac causes of the presenting symptoms. A working diagnosis of myocardial infarction must first be made. This is usually based on the history of severe chest pain lasting for 20 min or more, not responding to nitroglycerine. Important clues are ...
AHA/ACC/HR Guideline for the Management of Patients with Atrial
... disease since 1980. The ACC/AHA Task Force on Practice Guidelines (Task Force), whose charge is to develop, update, or revise practice guidelines for cardiovascular diseases and procedures, directs this effort. Writing committees are charged with the task of performing an assessment of the evidence ...
... disease since 1980. The ACC/AHA Task Force on Practice Guidelines (Task Force), whose charge is to develop, update, or revise practice guidelines for cardiovascular diseases and procedures, directs this effort. Writing committees are charged with the task of performing an assessment of the evidence ...
Computer Assisted Coronary CT Angiography Analysis Disease-Centered Software Development
... CAD occurs when the coronary arteries supplying blood to myocardium become hardened and narrowed, which is usually caused by the buildup of atherosclerotic plaques on their inner walls. Plaques are made up of fat, cholesterol, calcium, and other substances found in the blood. As the buildup grows, m ...
... CAD occurs when the coronary arteries supplying blood to myocardium become hardened and narrowed, which is usually caused by the buildup of atherosclerotic plaques on their inner walls. Plaques are made up of fat, cholesterol, calcium, and other substances found in the blood. As the buildup grows, m ...
Moderate Systemic Hypotension During
... The LAD artery was then occluded for 1 h when the snare was released, and reperfusion was established for 2 h. The animals were excluded from the study if the baseline mean ABP was ⬍ 75 mm Hg. Two groups were studied. In group 1 (n ⫽ 13), IV nitroglycerin was infused during the reperfusion period at ...
... The LAD artery was then occluded for 1 h when the snare was released, and reperfusion was established for 2 h. The animals were excluded from the study if the baseline mean ABP was ⬍ 75 mm Hg. Two groups were studied. In group 1 (n ⫽ 13), IV nitroglycerin was infused during the reperfusion period at ...
Development of Heart Failure and Congenital Septal
... with a PE10 catheter, which was connected to a ventilator (SAR-830, CWE Inc). Mice were artificially ventilated with room air. Tidal volume was set at 25 L with 90 breaths/min and 40/60 inspiration/ expiration ratio. Body temperature was maintained at 37°C. The heart was exposed through a midline s ...
... with a PE10 catheter, which was connected to a ventilator (SAR-830, CWE Inc). Mice were artificially ventilated with room air. Tidal volume was set at 25 L with 90 breaths/min and 40/60 inspiration/ expiration ratio. Body temperature was maintained at 37°C. The heart was exposed through a midline s ...
MATERNAL CARDIOVASCULAR ADAPTATIONS IN RODENT MODELS OF PREGNANCY COMPLICATIONS
... source of support throughout this whole experience. Your dynamic passion and enthusiasm for both scientific inquiry and the success of your students is overwhelming but so admirable, infectious and motivating, all at the same time. Your words of encouragement and continued advice were so valuable an ...
... source of support throughout this whole experience. Your dynamic passion and enthusiasm for both scientific inquiry and the success of your students is overwhelming but so admirable, infectious and motivating, all at the same time. Your words of encouragement and continued advice were so valuable an ...
UTILISATION OF CARDIAC MAGNETIC RESONANCE
... ever-growing scientific medical knowledge. Cardiac magnetic resonance (CMR) being the latest addition to the clinical armamentarium of cardiovascular imaging is certainly no different. The importance of CMR is such that today it has already become the gold standard clinical test in some cardiac dise ...
... ever-growing scientific medical knowledge. Cardiac magnetic resonance (CMR) being the latest addition to the clinical armamentarium of cardiovascular imaging is certainly no different. The importance of CMR is such that today it has already become the gold standard clinical test in some cardiac dise ...
Scintigraphic imaging of neuroadrenergic
... sympathetic nerve endings in the human heart and lungs [3, 4]. While there have been several publications dealing with the clinical applications of this tracer, less is known about the mechanisms underlying its uptake by noradrenergic nerve endings; moreover the findings that have emerged from the f ...
... sympathetic nerve endings in the human heart and lungs [3, 4]. While there have been several publications dealing with the clinical applications of this tracer, less is known about the mechanisms underlying its uptake by noradrenergic nerve endings; moreover the findings that have emerged from the f ...
Posterior Descending Artery Arising as A Continuation of
... LAD which then crossed anterior to root of pulmonary trunk and right ventricle to reach the acute margin and extend onto inferior surface to supply posteroinferior septum [12]. Clark et al., noted unusual origin of PDA from LAD in three patients undergoing coronary angiography [13]. Musselman and Ta ...
... LAD which then crossed anterior to root of pulmonary trunk and right ventricle to reach the acute margin and extend onto inferior surface to supply posteroinferior septum [12]. Clark et al., noted unusual origin of PDA from LAD in three patients undergoing coronary angiography [13]. Musselman and Ta ...
ESC Guidelines for the management of acute myocardial infarction
... substitutes but are complements for textbooks and cover the ESC Core Curriculum topics. Guidelines and recommendations should help physicians to make decisions in their daily practice. However, the final decisions concerning an individual patient must be made by the responsible physician(s). A great ...
... substitutes but are complements for textbooks and cover the ESC Core Curriculum topics. Guidelines and recommendations should help physicians to make decisions in their daily practice. However, the final decisions concerning an individual patient must be made by the responsible physician(s). A great ...
ESC Guidelines on ST segment elevation acute myocardial
... substitutes but are complements for textbooks and cover the ESC Core Curriculum topics. Guidelines and recommendations should help physicians to make decisions in their daily practice. However, the final decisions concerning an individual patient must be made by the responsible physician(s). A great ...
... substitutes but are complements for textbooks and cover the ESC Core Curriculum topics. Guidelines and recommendations should help physicians to make decisions in their daily practice. However, the final decisions concerning an individual patient must be made by the responsible physician(s). A great ...
Acute myocardial infarction in patients with ST segment elevation
... Associations: European Association of Echocardiography (EAE), European Association for Cardiovascular Prevention (EACPR), European Heart Rhythm Association (EHRA), European Association of Percutaneaous Cardiovascular Interventions (EAPCI), Heart Failure Association (HFA) Working Groups: Acute Cardia ...
... Associations: European Association of Echocardiography (EAE), European Association for Cardiovascular Prevention (EACPR), European Heart Rhythm Association (EHRA), European Association of Percutaneaous Cardiovascular Interventions (EAPCI), Heart Failure Association (HFA) Working Groups: Acute Cardia ...
The apical long-axis rather than the two
... from the apical window'5"81. Although an estimation of volume can be obtained from single apical views, biplane calculations have a better reproducibility'91. Most of the biplane methods assume orthogonality between paired apical views. The apical four-chamber is a standard view in all algorithms as ...
... from the apical window'5"81. Although an estimation of volume can be obtained from single apical views, biplane calculations have a better reproducibility'91. Most of the biplane methods assume orthogonality between paired apical views. The apical four-chamber is a standard view in all algorithms as ...
Brief Review Determinants of Left Ventricular Filling and of the
... develop congestive heart failure. The analysis thus far has presumed that stress in the wall is determined principally by ventricular geometry and myocardial elasticity. Although this is true late in diastole when the heart is fully relaxed, it is not true during early diastole, while the muscle is ...
... develop congestive heart failure. The analysis thus far has presumed that stress in the wall is determined principally by ventricular geometry and myocardial elasticity. Although this is true late in diastole when the heart is fully relaxed, it is not true during early diastole, while the muscle is ...
Reverse Atrial Electrical Remodeling Induced by Continuous Positive Airway Pressure
... current (ICaL) as a result of Ca2+ accumulation within atrial myocytes due to rapid atrial activation (Van Wagoner et al. 1999). The abbreviation in refractory periods shortens the wavelengths of atrial impulse, favouring the occurrence of multiple wavelet reentry and subsequently increasing the su ...
... current (ICaL) as a result of Ca2+ accumulation within atrial myocytes due to rapid atrial activation (Van Wagoner et al. 1999). The abbreviation in refractory periods shortens the wavelengths of atrial impulse, favouring the occurrence of multiple wavelet reentry and subsequently increasing the su ...
Catheter Ablation as Treatment for Atrial Fibrillation
... myocardial substrate that permits propagation and maintenance of the aberrant electrical circuit. The most common focal trigger of AF appears to be located within the cardiac muscle that extends into the pulmonary veins. AF accounts for approximately one-third of hospitalizations for cardiac rhythm ...
... myocardial substrate that permits propagation and maintenance of the aberrant electrical circuit. The most common focal trigger of AF appears to be located within the cardiac muscle that extends into the pulmonary veins. AF accounts for approximately one-third of hospitalizations for cardiac rhythm ...
Subcellular Calcium Content in Cardiomyopathic Hamster Hearts In
... sensitive Ca2+ channels,8 although the latter observation is controversial.9 In view of the early onset of many of these changes in Ca2+ metabolism, it has been proposed that a general elevation of intracellular Ca2+ may be an important initiating or aggravating factor in the etiology of the disease ...
... sensitive Ca2+ channels,8 although the latter observation is controversial.9 In view of the early onset of many of these changes in Ca2+ metabolism, it has been proposed that a general elevation of intracellular Ca2+ may be an important initiating or aggravating factor in the etiology of the disease ...
Flecainide BNM
... Flecainide slows cardiac conduction sufficiently in most patients to produce measurable increases in the duration of the PR, QRS and QT intervals on the electrocardiogram. This is an extension of the pharmacological action of the medicine and most patients experience no detrimental clinical effects ...
... Flecainide slows cardiac conduction sufficiently in most patients to produce measurable increases in the duration of the PR, QRS and QT intervals on the electrocardiogram. This is an extension of the pharmacological action of the medicine and most patients experience no detrimental clinical effects ...
An Emerging Antiarrhythmic Target: Late Sodium Current
... Cardiac arrhythmias are one of the primary causes of death and a major public health problem. However, anti-arrhythmic drug therapies using ion channel blockers led to conflicting results. Many seemingly promising drugs turned out to be proarrhythmic. Clinical experiences by many physicians sum up t ...
... Cardiac arrhythmias are one of the primary causes of death and a major public health problem. However, anti-arrhythmic drug therapies using ion channel blockers led to conflicting results. Many seemingly promising drugs turned out to be proarrhythmic. Clinical experiences by many physicians sum up t ...
Chronic Coronary Artery Constriction Leads to Moderate
... OH). After monitoring arterial blood pressure, the catheter was advanced into the left ventricle for the evaluation of left ventricular pressures and dP/dt. Subsequently, a second catheter (Millar PR 249) with a 1200 curved tip was inserted in the right jugular vein and advanced through the superior ...
... OH). After monitoring arterial blood pressure, the catheter was advanced into the left ventricle for the evaluation of left ventricular pressures and dP/dt. Subsequently, a second catheter (Millar PR 249) with a 1200 curved tip was inserted in the right jugular vein and advanced through the superior ...
Coder`s Data Dictionary NCDR® ICD Registry™ v2.2
... Element: 2073 Race - American Indian/Alaskan Native Coding Instruction: Indicate if the patient is American Indian or Alaskan Native as determined by the patient/family. Note(s): If the patient has multiple race origins, specify them using the other race selections in addition to this one. Target Va ...
... Element: 2073 Race - American Indian/Alaskan Native Coding Instruction: Indicate if the patient is American Indian or Alaskan Native as determined by the patient/family. Note(s): If the patient has multiple race origins, specify them using the other race selections in addition to this one. Target Va ...
Pericardial heart disease
... type of morphologic derangement. The person with a thick during life. Pericardial heart disease has been found clinically in constricting pericardium (obvious evidence of chronic disease) <1% of patients admitted to one large general hospital (2) and may present clinically with an acute picture (Fig ...
... type of morphologic derangement. The person with a thick during life. Pericardial heart disease has been found clinically in constricting pericardium (obvious evidence of chronic disease) <1% of patients admitted to one large general hospital (2) and may present clinically with an acute picture (Fig ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.