Philips HeartStart OnSite Defibrillator
... •The likelihood of successful resuscitation decreases by about 10% with every minute that passes. •An additional 40,000 lives could be saved each year in the U.S. alone with widespread access to defibrillators. ...
... •The likelihood of successful resuscitation decreases by about 10% with every minute that passes. •An additional 40,000 lives could be saved each year in the U.S. alone with widespread access to defibrillators. ...
comparison of blood pool gated spect with three diffe
... Michigan Medical Center, Ann Arbor, MI, USA)3. All these programs have shown good correlation among each other and with other conventional methods for the estimation of EF4-11 but an overestimation of EF has been reported by several investigators in the setting of small hearts 12-15. Blood pool gate ...
... Michigan Medical Center, Ann Arbor, MI, USA)3. All these programs have shown good correlation among each other and with other conventional methods for the estimation of EF4-11 but an overestimation of EF has been reported by several investigators in the setting of small hearts 12-15. Blood pool gate ...
Philips HeartStart OnSite Brochure
... •The likelihood of successful resuscitation decreases by about 10% with every minute that passes. •An additional 40,000 lives could be saved each year in the U.S. alone with widespread access to defibrillators. ...
... •The likelihood of successful resuscitation decreases by about 10% with every minute that passes. •An additional 40,000 lives could be saved each year in the U.S. alone with widespread access to defibrillators. ...
Left atrial myxoma with aortic regurgitation - Heart
... helpful in excluding mitral stenosis but cardiac catheterisation was considered necessary to show conclusively that the abnormal echoes posterior to the anterior leaflet of the mitral valve and the aortic root (Fig. 1A and 1B) were the result of a left atrial tumour. These abnormal echoes were then ...
... helpful in excluding mitral stenosis but cardiac catheterisation was considered necessary to show conclusively that the abnormal echoes posterior to the anterior leaflet of the mitral valve and the aortic root (Fig. 1A and 1B) were the result of a left atrial tumour. These abnormal echoes were then ...
Calibrated integrated backscatter and
... interpreted the association of cIB with left ventricular functional abnormalities as evidence for the contribution of myocardial fibrosis to these abnormalities.6 7 There is, however, uncertainty about the relationship between cIB and fibrosis in patients with less extensive fibrosis. We have shown tha ...
... interpreted the association of cIB with left ventricular functional abnormalities as evidence for the contribution of myocardial fibrosis to these abnormalities.6 7 There is, however, uncertainty about the relationship between cIB and fibrosis in patients with less extensive fibrosis. We have shown tha ...
New Diagnostic and Therapeutic Possibilities For Diastolic Heart
... failure with a normal left ventricular ejection fraction (i.e. >50%). Suggestive of the diagnosis is the presence of left ventricular diastolic dysfunction. While the gold standard for diastolic dysfunction is thought to be derived from ventricular pressure volume loops, this is generally an impract ...
... failure with a normal left ventricular ejection fraction (i.e. >50%). Suggestive of the diagnosis is the presence of left ventricular diastolic dysfunction. While the gold standard for diastolic dysfunction is thought to be derived from ventricular pressure volume loops, this is generally an impract ...
PDF (Thesis_Part2)
... Utilizing novel imaging tools and four-dimensional visualization protocols (Liebling et al. 2005), we propose a new mechanism of valveless pumping in the embryonic heart tube via elastic wave propagation and reflection (Forouhar et al. 2006). We arrived at this conclusion by studying the structure o ...
... Utilizing novel imaging tools and four-dimensional visualization protocols (Liebling et al. 2005), we propose a new mechanism of valveless pumping in the embryonic heart tube via elastic wave propagation and reflection (Forouhar et al. 2006). We arrived at this conclusion by studying the structure o ...
Heart Sounds and Murmurs
... Pathophys: 1. Sudden deceleration of blood flow into diseased, dilated & non compliant ventricle. 2. AR/MR- volume overload with rapid inflow of increased blood volume into compliant LV. Best heard: bell at apex in LLD position. Timing: lub….du..dub S1 ...
... Pathophys: 1. Sudden deceleration of blood flow into diseased, dilated & non compliant ventricle. 2. AR/MR- volume overload with rapid inflow of increased blood volume into compliant LV. Best heard: bell at apex in LLD position. Timing: lub….du..dub S1 ...
Off-Pump Positioning of a Conventional Aortic Valve Prosthesis via
... We thought that a third surgical option will offer a more patient specific choice, and serve a larger patient population. The Universal Cardiac Introducer®, will provide a safe and versatile left ventricular (LV) port access for introducing, navigating, positioning and anchoring a stateof-the-art Ao ...
... We thought that a third surgical option will offer a more patient specific choice, and serve a larger patient population. The Universal Cardiac Introducer®, will provide a safe and versatile left ventricular (LV) port access for introducing, navigating, positioning and anchoring a stateof-the-art Ao ...
A model-based approach for the evaluation of vagal and - HAL
... Heart rate variability (HRV) is a commonly used indicator of the autonomic balance between the sympathetic and the vagal activities. Although HRV can be easily extracted from the electrocardiogram (ECG), its interpretation can be difficult because of the complex mechanisms involved in the autonomic ...
... Heart rate variability (HRV) is a commonly used indicator of the autonomic balance between the sympathetic and the vagal activities. Although HRV can be easily extracted from the electrocardiogram (ECG), its interpretation can be difficult because of the complex mechanisms involved in the autonomic ...
Is treating cardiac hypertrophy salutary or
... hypertrophy is initially compensatory, the continued presence of hypertrophy leads to dilated cardiomyopathy, heart failure, ischemic heart disease, and sudden death (22, 23). The LV diastolic and systolic dysfunction and subsequent development of congestive heart failure start from hypertrophic rem ...
... hypertrophy is initially compensatory, the continued presence of hypertrophy leads to dilated cardiomyopathy, heart failure, ischemic heart disease, and sudden death (22, 23). The LV diastolic and systolic dysfunction and subsequent development of congestive heart failure start from hypertrophic rem ...
Secondary Cardiac Pleomorphic Rhabdomyosarcoma – A
... In 1993, fast myosin, a skeletal muscle-specific marker, was added to the repertoire for PRMS [12]. MyoD1, the product of a gene which is activated early in myogenesis was discussed as a skeletal muscle-specific marker, but it was not applied to pleomorphic rhabdomyosarcoma until 1995 [16], [17]. My ...
... In 1993, fast myosin, a skeletal muscle-specific marker, was added to the repertoire for PRMS [12]. MyoD1, the product of a gene which is activated early in myogenesis was discussed as a skeletal muscle-specific marker, but it was not applied to pleomorphic rhabdomyosarcoma until 1995 [16], [17]. My ...
Exercise in Diabetes Mellitus Patients – from the view
... Symptoms of lightheadedness or dizziness may occur if cardiac output is reduced. With relaxation, individuals may experience headache while pressure remains elevated. In patients with heart disease, symptoms of myocardial ischemia may ensue as a result of elevated BP and increased myocardial w ...
... Symptoms of lightheadedness or dizziness may occur if cardiac output is reduced. With relaxation, individuals may experience headache while pressure remains elevated. In patients with heart disease, symptoms of myocardial ischemia may ensue as a result of elevated BP and increased myocardial w ...
Postoperative Atrial Fibrillation Following Open Cardiac Surgery
... sinus rhythm (P=0.000). In this study, the rate of stroke was higher in the AF group (4.7% AF vs 2.0% no AF; P=0.041). This finding also showed that about 85.4% of POAF converted to sinus rhythm through correction of electrolyte imbalances and administration of amiodarone. In-hospital mortality was ...
... sinus rhythm (P=0.000). In this study, the rate of stroke was higher in the AF group (4.7% AF vs 2.0% no AF; P=0.041). This finding also showed that about 85.4% of POAF converted to sinus rhythm through correction of electrolyte imbalances and administration of amiodarone. In-hospital mortality was ...
EFFECTS OF SUPINE AND-6 HEAD
... researchers began to develop ground-based models of spaceflight. Two widely used models include a supine or slightly head-down tilt posture, both of which result in similar adaptive ...
... researchers began to develop ground-based models of spaceflight. Two widely used models include a supine or slightly head-down tilt posture, both of which result in similar adaptive ...
Dobutamine-induced augmentation of left ventricular ejection
... referred to the Yale Heart Failure Clinic for consideration of cardiac transplantation. There were 42 males and 20 females. Mean age was 4811 years, and mean duration of chronic heart failure was 3·43·2 years. After stabilization on optimal medical therapy, mean functional class, assessed by the s ...
... referred to the Yale Heart Failure Clinic for consideration of cardiac transplantation. There were 42 males and 20 females. Mean age was 4811 years, and mean duration of chronic heart failure was 3·43·2 years. After stabilization on optimal medical therapy, mean functional class, assessed by the s ...
Aaem minimonograph #48: Autonomic nervous system
... ord the 1–2 min epochs required for most tests. Many modern electromyographs do not have continuous printers, and signals must be collected before printing. Computerized programs for signal analysis of ECG are present in some systems. Standard limb or precordial placement of the recording electrodes ...
... ord the 1–2 min epochs required for most tests. Many modern electromyographs do not have continuous printers, and signals must be collected before printing. Computerized programs for signal analysis of ECG are present in some systems. Standard limb or precordial placement of the recording electrodes ...
Assessment of Heart Rates and Blood Pressure in
... In this study, HR was measured during actual and mimed Salat. However, BP was measured immediately before and 5 minutes after performance of both actual and mimed Salat. We note that in both performance of actual and mimed Salat, the change of heart rate was associated with postural change. The resu ...
... In this study, HR was measured during actual and mimed Salat. However, BP was measured immediately before and 5 minutes after performance of both actual and mimed Salat. We note that in both performance of actual and mimed Salat, the change of heart rate was associated with postural change. The resu ...
Increasing cyanosis early after cavopulmonary - Heart
... physiologically important only after surgery when they dilate. It may not be possible to demonstrate these "potential" channels with any imaging modality, although in case 2, in which a single hepatic vein drained separately to the left side of the atrial septum, allowing an intrahepatic right to le ...
... physiologically important only after surgery when they dilate. It may not be possible to demonstrate these "potential" channels with any imaging modality, although in case 2, in which a single hepatic vein drained separately to the left side of the atrial septum, allowing an intrahepatic right to le ...
A model-based approach for the evaluation of vagal and
... The baroreflex model was implemented under an object-oriented multiformalism modeling tool (M2SL) [16]. The first step of the identification was performed over a period P of 5 seconds. The results obtained are the following (the time parameters are expressed in seconds) : T = 0.13, K = 0.848, T = 0. ...
... The baroreflex model was implemented under an object-oriented multiformalism modeling tool (M2SL) [16]. The first step of the identification was performed over a period P of 5 seconds. The results obtained are the following (the time parameters are expressed in seconds) : T = 0.13, K = 0.848, T = 0. ...
Visualization of the Fibrous Structure of the Heart
... fiber shapes to the viewer in an intuitive way. Some scientific visualizations use illuminated lines in order to make the shapes of the individual lines easier to interpret [11]. Our method uses the normal in the local normal plane of the fiber that maximizes the lighting intensity to do the lightin ...
... fiber shapes to the viewer in an intuitive way. Some scientific visualizations use illuminated lines in order to make the shapes of the individual lines easier to interpret [11]. Our method uses the normal in the local normal plane of the fiber that maximizes the lighting intensity to do the lightin ...
Prevention of sudden cardiac death in
... have shown a survival benefit in some cardiac conditions, but there are no such data in patients with HCM. The justification for ICD therapy in HCM is that patients treated with an ICD receive appropriate shocks to terminate potentially life threatening ventricular arrhythmias19 and at the same time d ...
... have shown a survival benefit in some cardiac conditions, but there are no such data in patients with HCM. The justification for ICD therapy in HCM is that patients treated with an ICD receive appropriate shocks to terminate potentially life threatening ventricular arrhythmias19 and at the same time d ...
Sudeen Cardiac Arrest Monograph
... cause life-threatening ventricular arrhythmias. • Some individuals can have inherited abnormalities that are not manifest until triggered by an external event. For example, autonomic modulation associated with certain types of activity, as well as drugs that affect cardiac repolarization, can conver ...
... cause life-threatening ventricular arrhythmias. • Some individuals can have inherited abnormalities that are not manifest until triggered by an external event. For example, autonomic modulation associated with certain types of activity, as well as drugs that affect cardiac repolarization, can conver ...
Chapter 20 Heart
... Electrocardiogram---ECG or EKG • EKG – Action potentials of all active cells can be detected and recorded ...
... Electrocardiogram---ECG or EKG • EKG – Action potentials of all active cells can be detected and recorded ...
Implantable Cardioverter Defibrillator (ICD)
... The Failure of ATP termination may lead to acceleration of VT to VF. Early recognition of this relationship resulted in a historical hesitancy to apply ATP for FVT (rates > 190-250 beats/min). ...
... The Failure of ATP termination may lead to acceleration of VT to VF. Early recognition of this relationship resulted in a historical hesitancy to apply ATP for FVT (rates > 190-250 beats/min). ...
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.