Effects of exercise training on left ventricular volumes
... The aforementioned studies have used echocardiography and MRI to assess the remodeling process after an infarction. Echocardiography provides an assessment of cardiac motion in terms of radial displacement and systolic shortening, and standard MRI permits the measurement of more precise and specific ...
... The aforementioned studies have used echocardiography and MRI to assess the remodeling process after an infarction. Echocardiography provides an assessment of cardiac motion in terms of radial displacement and systolic shortening, and standard MRI permits the measurement of more precise and specific ...
Species-specific differences of myosin content in the developing
... primitive vertebrates, i.e., cartilaginous fishes, both the embryonic and the adult heart show a segmental subdivision similar to that of the embryonic mammalian heart. Early morphogenetic events during cardiac development in the dogfish are long-lasting, providing a suitable model to study changes ...
... primitive vertebrates, i.e., cartilaginous fishes, both the embryonic and the adult heart show a segmental subdivision similar to that of the embryonic mammalian heart. Early morphogenetic events during cardiac development in the dogfish are long-lasting, providing a suitable model to study changes ...
Echocardiographic Evaluation of Ventricular Assist Devices
... abnormal ventricular morphology or a ventricular apical thrombus. LV apical thrombi may be difficult to detect, especially if they are small or laminar. Due to imaging orientation and scan planes, transoesophageal echocardiography may not detect LV apical thrombi and transthoracic echocardiography c ...
... abnormal ventricular morphology or a ventricular apical thrombus. LV apical thrombi may be difficult to detect, especially if they are small or laminar. Due to imaging orientation and scan planes, transoesophageal echocardiography may not detect LV apical thrombi and transthoracic echocardiography c ...
Developmental anatomy of the heart
... circulation kicks in. In the mouse, however, it takes only 2 wk from the time of conception for cardiac septation to complete. After that, the mouse fetus has less than 1 wk of prenatal life before birth. Without going into any detail, it suffices to say that some of the developmental events that in ...
... circulation kicks in. In the mouse, however, it takes only 2 wk from the time of conception for cardiac septation to complete. After that, the mouse fetus has less than 1 wk of prenatal life before birth. Without going into any detail, it suffices to say that some of the developmental events that in ...
Caring For Patients With Cardiomyopathy
... congestion dizziness / syncope : result of ischemic induced arrhythmias: CO chest pain: due to supply with demand; narrowed transluminal coronary arteries sudden death from arrhythmias may be first sign ...
... congestion dizziness / syncope : result of ischemic induced arrhythmias: CO chest pain: due to supply with demand; narrowed transluminal coronary arteries sudden death from arrhythmias may be first sign ...
relationship of echocardiographic geometry of left ventricular
... Heart Institute - St. Luke's Medical Center, Quezon City, Philippines This study aimed to search for the ECG characteristics of echocardiographic concentric and eccentric left ventricular hypertrophy (LVH) . The echocardiographic geometry of LVH in patients with cardiovascular disease has prognostic ...
... Heart Institute - St. Luke's Medical Center, Quezon City, Philippines This study aimed to search for the ECG characteristics of echocardiographic concentric and eccentric left ventricular hypertrophy (LVH) . The echocardiographic geometry of LVH in patients with cardiovascular disease has prognostic ...
The effect of connexin40 deficiency on ventricular conduction
... endocardium. (C) This pattern is similar at ED11.5, where a rich network of the pectinate muscles could be seen in both atrial appendages. White dots indicate the position of the PIR, devoid of Cx40, corresponding externally to forming interventricular groove. (A, B, C) Tissue autofluorescence in th ...
... endocardium. (C) This pattern is similar at ED11.5, where a rich network of the pectinate muscles could be seen in both atrial appendages. White dots indicate the position of the PIR, devoid of Cx40, corresponding externally to forming interventricular groove. (A, B, C) Tissue autofluorescence in th ...
Management of patients with ventricular tachycardia in Europe
... for sudden cardiac death. To some extent, the aims of EP studies also changed.4 This survey has demonstrated that left ventricular systolic function, haemodynamics, underlying heart disease, and duration of VT are the major determinants of VT treatment in Europe. For patients with LVEF ≤ 35%, ICD im ...
... for sudden cardiac death. To some extent, the aims of EP studies also changed.4 This survey has demonstrated that left ventricular systolic function, haemodynamics, underlying heart disease, and duration of VT are the major determinants of VT treatment in Europe. For patients with LVEF ≤ 35%, ICD im ...
Assessment of Longitudinal Myocardial Stiffness Is Not - J
... intensive studies. However, the numerous studies published at the time only referred to myocardial contraction and not to the diastolic component. This overlooking of the diastolic component was possibly because ventricular filling was considered a completely passive process that occurred only as a ...
... intensive studies. However, the numerous studies published at the time only referred to myocardial contraction and not to the diastolic component. This overlooking of the diastolic component was possibly because ventricular filling was considered a completely passive process that occurred only as a ...
Outpatient Cardiovascular Telemetry
... had undergone 24 hours of monitoring with a Holter monitor, which failed to provide diagnostic information. These patients were randomized to 30 days of monitoring with MCOT (MCOT Group) or with an external loop monitor (Loop Group). Most of the patients in the Loop Group were required to activate t ...
... had undergone 24 hours of monitoring with a Holter monitor, which failed to provide diagnostic information. These patients were randomized to 30 days of monitoring with MCOT (MCOT Group) or with an external loop monitor (Loop Group). Most of the patients in the Loop Group were required to activate t ...
Rajiv Gandhi University Of Health Sciences, Karnataka Bangalore
... detect left ventricular hypertrophy by effective, low-cost screening, applicable to the population in general. ECG is relatively insensitive and cannot accurately quantitate the severity of LVH. Also LVH is difficult to diagnose by ECG if left bundle branch block is present. Because of these limitat ...
... detect left ventricular hypertrophy by effective, low-cost screening, applicable to the population in general. ECG is relatively insensitive and cannot accurately quantitate the severity of LVH. Also LVH is difficult to diagnose by ECG if left bundle branch block is present. Because of these limitat ...
Colour M-mode velocity propagation
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
... in white bars. Ventricular interdependence is considered as a potential form of dyssynergy, coronary engorgement as an epi-pericardial feature, and therefore none of both are depicted. ...
3. ECG ANALYSIS 3.1. Heartbeat
... The nodal rhythm is characterized by a change in shape and position of P wave. Three types of nodal rhythm are distinguished according to the pacemaker location: 1. Upper nodal rhythm originates in the atrial part of AV node. P wave precedes QRS complex but the duration of PQ interval is shorter (tr ...
... The nodal rhythm is characterized by a change in shape and position of P wave. Three types of nodal rhythm are distinguished according to the pacemaker location: 1. Upper nodal rhythm originates in the atrial part of AV node. P wave precedes QRS complex but the duration of PQ interval is shorter (tr ...
Magnetic Resonance Spectroscopy in Myocardial Disease
... angle calibration, B1 field mapping, and determination of myocardial mass within the interrogated voxel (7). A typical 31P spectrum from a healthy subject shows 6 resonances: 3 31P atoms (alpha, beta, and gamma) of ATP, phosphocreatine (PCr), 2.3diphosphoglycerate (from erythrocytes), and phosphodie ...
... angle calibration, B1 field mapping, and determination of myocardial mass within the interrogated voxel (7). A typical 31P spectrum from a healthy subject shows 6 resonances: 3 31P atoms (alpha, beta, and gamma) of ATP, phosphocreatine (PCr), 2.3diphosphoglycerate (from erythrocytes), and phosphodie ...
Evaluation of heart function with impedance cardiography in acute
... myocardial infarction (AMI) patients. Methods: 99 inpatients with initial AMI were recruited. Venous blood was obtained for detection of N-terminal brain-type natriuretic peptide (NT-proBNP), B-Type natriuretic peptide (BNP) and c troponin-T (cTnT) followed by ICG. Thorax fluid capacity (TFC), pre-e ...
... myocardial infarction (AMI) patients. Methods: 99 inpatients with initial AMI were recruited. Venous blood was obtained for detection of N-terminal brain-type natriuretic peptide (NT-proBNP), B-Type natriuretic peptide (BNP) and c troponin-T (cTnT) followed by ICG. Thorax fluid capacity (TFC), pre-e ...
the normal ecg in childhood and adolescence
... physiological differences in, for example, height and weight and perhaps age at puberty between present day children and those studied 25 years ago. Some technical matters may also be relevant. The frequency content of the ECG decreases with age. This fact may be of particular importance in recordin ...
... physiological differences in, for example, height and weight and perhaps age at puberty between present day children and those studied 25 years ago. Some technical matters may also be relevant. The frequency content of the ECG decreases with age. This fact may be of particular importance in recordin ...
Developmental anatomy of the heart: a tale of
... circulation kicks in. In the mouse, however, it takes only 2 wk from the time of conception for cardiac septation to complete. After that, the mouse fetus has less than 1 wk of prenatal life before birth. Without going into any detail, it suffices to say that some of the developmental events that in ...
... circulation kicks in. In the mouse, however, it takes only 2 wk from the time of conception for cardiac septation to complete. After that, the mouse fetus has less than 1 wk of prenatal life before birth. Without going into any detail, it suffices to say that some of the developmental events that in ...
Pathogenesis of ventricular hypertrophy
... most important factor mediating cardiac hypertrophy has been thought to be the systolic force or tension generated by the myocardial fibers (28). The relations among left ventricular wall tension, intracavitary pressure and heart size can be expressed by the law of Laplace. Assuming that the ventric ...
... most important factor mediating cardiac hypertrophy has been thought to be the systolic force or tension generated by the myocardial fibers (28). The relations among left ventricular wall tension, intracavitary pressure and heart size can be expressed by the law of Laplace. Assuming that the ventric ...
Hemodynamic Determinants of Prognosis of Aortic
... cm2/m2) who had no evidence of other hemodynamically significant valvular disease at catheterization were identified. Of this group, 28 patients (33%) had an angiographically determined left ventricular ejection fraction less than 0.45 and a clinical presentation of severe congestive heart failure ( ...
... cm2/m2) who had no evidence of other hemodynamically significant valvular disease at catheterization were identified. Of this group, 28 patients (33%) had an angiographically determined left ventricular ejection fraction less than 0.45 and a clinical presentation of severe congestive heart failure ( ...
Effects of right ventricular pacing on left ventricular ejection fraction
... they are monitored for angina pectoris, NYHA classification, syncope and other events such as myocardial infarctions, operations, etc. Myocardial infarction was defined as typical rise and gradual fall (troponin) or more rapid rise and fall (CK-MB) of biochemical markers of myocardial necrosis with ...
... they are monitored for angina pectoris, NYHA classification, syncope and other events such as myocardial infarctions, operations, etc. Myocardial infarction was defined as typical rise and gradual fall (troponin) or more rapid rise and fall (CK-MB) of biochemical markers of myocardial necrosis with ...
Running head: ATRIAL FIBRILLATION
... of the normal pathological changes in the body when one ages. For example the stiffening and possible scar tissue in the heart potentially alters the electrical pathway leading to or sustaining an abnormal heart rhythm (Gottlieb, 2006). The atrium can also become fibrotic leading to structural chang ...
... of the normal pathological changes in the body when one ages. For example the stiffening and possible scar tissue in the heart potentially alters the electrical pathway leading to or sustaining an abnormal heart rhythm (Gottlieb, 2006). The atrium can also become fibrotic leading to structural chang ...
Table 1
... stratification in the individual patient is still an unresolved issue. Amiodarone [5] and b-blocking agents [6e8] may have a role in reducing sudden death incidence in patients with DCM, but data are not conclusive. In non-ischaemic cardiomyopathy, the role and the benefit of an implantable cardiove ...
... stratification in the individual patient is still an unresolved issue. Amiodarone [5] and b-blocking agents [6e8] may have a role in reducing sudden death incidence in patients with DCM, but data are not conclusive. In non-ischaemic cardiomyopathy, the role and the benefit of an implantable cardiove ...
Remodeling in myocardium adjacent to an infarction in - AJP
... after surgery. The catheter in the left ventricle was flushed and filled with heparin every other day. Conscious animal studies. Before surgery, all animals were habituated to a canvas sling and the laboratory over the course of 1–2 wk. Three weeks after coronary ligation animals, they were placed i ...
... after surgery. The catheter in the left ventricle was flushed and filled with heparin every other day. Conscious animal studies. Before surgery, all animals were habituated to a canvas sling and the laboratory over the course of 1–2 wk. Three weeks after coronary ligation animals, they were placed i ...
Reverse Takotsubo Cardiomyopathy
... LV outflow tract obstruction. This obstruction would be caused by compensatory hyperkinesis of the base of the heart, with associated anterior motion of the mitral valve during systole. In the absence of outflow obstruction, hypotension can be managed with pressors such as dopamine, dobutamine, and ...
... LV outflow tract obstruction. This obstruction would be caused by compensatory hyperkinesis of the base of the heart, with associated anterior motion of the mitral valve during systole. In the absence of outflow obstruction, hypotension can be managed with pressors such as dopamine, dobutamine, and ...
Full Text - Ibrahim Medical College
... and therefore, the inability to correlate the echocardiographic findings with underlying coronary artery disease. Because diabetes is notoriously associated with silent myocardial ischemia in up to 10-20% cases,39-41 asymptomatic patient with normal ECG would not exclude true cardiac ischemia. Howev ...
... and therefore, the inability to correlate the echocardiographic findings with underlying coronary artery disease. Because diabetes is notoriously associated with silent myocardial ischemia in up to 10-20% cases,39-41 asymptomatic patient with normal ECG would not exclude true cardiac ischemia. Howev ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.