PhD THESIS
... geometric pattern (37). Pathophysiologic differences might account for the different phenotypes found in aortic coartation, hypertension and CRI, including age of exposure of myocardium to increase in loading conditions and non-hemodynamic factors (38). In aortic coartation, loading conditions are a ...
... geometric pattern (37). Pathophysiologic differences might account for the different phenotypes found in aortic coartation, hypertension and CRI, including age of exposure of myocardium to increase in loading conditions and non-hemodynamic factors (38). In aortic coartation, loading conditions are a ...
A Tale of Two "Pulseless Electrical Activity" Cardiac Arrest Rhythms
... tension pneumothorax, large pulmonary embolism) can also impair adequate circulation. The heart increases its rate in an attempt to maintain cardiac output as its ability to pump efficiently declines. This increased rate usually manifests as sinus tachycardia; in patients with atrial fibrillation (A ...
... tension pneumothorax, large pulmonary embolism) can also impair adequate circulation. The heart increases its rate in an attempt to maintain cardiac output as its ability to pump efficiently declines. This increased rate usually manifests as sinus tachycardia; in patients with atrial fibrillation (A ...
Understanding cardiac “echo” reports
... septum and posterior LV wall are used to determine the presence of concentric LV hypertrophy or asymmetric septal hypertrophy. This practice can be misleading. Elderly patients often have a sigmoid-shaped septum that looks abnormally thick in most views.4 When asymmetric septal hypertrophy is identi ...
... septum and posterior LV wall are used to determine the presence of concentric LV hypertrophy or asymmetric septal hypertrophy. This practice can be misleading. Elderly patients often have a sigmoid-shaped septum that looks abnormally thick in most views.4 When asymmetric septal hypertrophy is identi ...
Original Contributions
... systolic wall thickening, and LAD coronary artery blood flow were continuously recorded on an eightchannel recorder (Gould, Cleveland, Ohio). The above indexes were measured three times at 10minute intervals while the pig was in a quiescent state. Once it was determined that significant differences ...
... systolic wall thickening, and LAD coronary artery blood flow were continuously recorded on an eightchannel recorder (Gould, Cleveland, Ohio). The above indexes were measured three times at 10minute intervals while the pig was in a quiescent state. Once it was determined that significant differences ...
CARDIAC RESYNCHRONISATION THERAPY IN HEART FAILURE
... to CRT respectively were sudden deaths that could have been avoided by associating a defibrillator back-up. Finally, results of the CARE-HF and COMPANION trials and those from another important meta-analysis (9) were consistent in showing a similar risk reduction for the combined end-point – hospita ...
... to CRT respectively were sudden deaths that could have been avoided by associating a defibrillator back-up. Finally, results of the CARE-HF and COMPANION trials and those from another important meta-analysis (9) were consistent in showing a similar risk reduction for the combined end-point – hospita ...
Left ventricular dyssynergy and dispersion as determinant factors of
... (LV) ejection fraction (EF) are at high risk of fatal ventricular arrhythmias, and their condition is associated with worsening of long-term outcome. Such patients can die suddenly and unpredictably from malignant arrhythmias despite the use of optimal medical therapies. ...
... (LV) ejection fraction (EF) are at high risk of fatal ventricular arrhythmias, and their condition is associated with worsening of long-term outcome. Such patients can die suddenly and unpredictably from malignant arrhythmias despite the use of optimal medical therapies. ...
“” Investigation of cardiovascular disease “”(Printed by Mostafa Hatim)
... of patients with suspected arrhythmia, such as those with intermittent palpitation, dizziness or syncope. For these patients, a 12-lead ECG provides only a snapshot of the cardiac rhythm and is unlikely to detect an intermittent arrhythmia, so a longer period of recording is useful. These devices ca ...
... of patients with suspected arrhythmia, such as those with intermittent palpitation, dizziness or syncope. For these patients, a 12-lead ECG provides only a snapshot of the cardiac rhythm and is unlikely to detect an intermittent arrhythmia, so a longer period of recording is useful. These devices ca ...
Cardiopulmonary resuscitation dr. Horáček
... • ventilation = important in asphyxial cardiac arr. • 5 initial breaths, f 12-20/min, Vt according to chest ...
... • ventilation = important in asphyxial cardiac arr. • 5 initial breaths, f 12-20/min, Vt according to chest ...
Intra-aortic balloon pumps and continuous flow left ventricular assist
... stabilize the patient and reduce the risk of perioperative right heart failure. After successful CF-LVAD implantation, however, the preoperative benefits of IABP support are markedly diminished if not absent. Finally, it has been shown that counterpulsation with an IABP produces retrograde flow.6 Si ...
... stabilize the patient and reduce the risk of perioperative right heart failure. After successful CF-LVAD implantation, however, the preoperative benefits of IABP support are markedly diminished if not absent. Finally, it has been shown that counterpulsation with an IABP produces retrograde flow.6 Si ...
99311 Brugada/JB3
... not aggravate ST-segment elevation when the patient’s ECG had shown coved ST elevation in the right precordial leads at baseline [6]. These autonomic nervous system responses might be explained by postulating the presence of an area of early repolarization or a local depolarized area in the ventricl ...
... not aggravate ST-segment elevation when the patient’s ECG had shown coved ST elevation in the right precordial leads at baseline [6]. These autonomic nervous system responses might be explained by postulating the presence of an area of early repolarization or a local depolarized area in the ventricl ...
State of the Art Mock Circulation Loop and a Proposed Novel Design
... Heart disease is agreed as the highest cause of death in the world by most of the health organizations. Heart disease and stroke statistics of American Heart Association [1] states that, on basis of 2009 death rate data, cardiovascular disease was the reason for one of every three deaths in the Unit ...
... Heart disease is agreed as the highest cause of death in the world by most of the health organizations. Heart disease and stroke statistics of American Heart Association [1] states that, on basis of 2009 death rate data, cardiovascular disease was the reason for one of every three deaths in the Unit ...
Left ventricular hypertrophy in aortic valve stenosis: friend or foe?
... increasing the risk of heart failure.6 Due to afterload dependence, systolic chamber function may be difficult to quantify in the presence of AS. As left ventricular volumes become smaller due to concentric remodelling, stroke volume is reduced, sometimes leading to the ‘paradoxical low-flow AS’ pheno ...
... increasing the risk of heart failure.6 Due to afterload dependence, systolic chamber function may be difficult to quantify in the presence of AS. As left ventricular volumes become smaller due to concentric remodelling, stroke volume is reduced, sometimes leading to the ‘paradoxical low-flow AS’ pheno ...
Ischemic Mitral Regurgitation and Risk of Heart Failure After
... Interaction between the degree of ischemic mitral regurgitation and left ventricular ejection fraction. A, Event rates for the combined end point of heart failure (HF) and death according to left ventricular ejection fraction (LVEF) and the degree of ischemic mitral regurgitation (MR). B, Adjusted h ...
... Interaction between the degree of ischemic mitral regurgitation and left ventricular ejection fraction. A, Event rates for the combined end point of heart failure (HF) and death according to left ventricular ejection fraction (LVEF) and the degree of ischemic mitral regurgitation (MR). B, Adjusted h ...
Diagnosis and effective management of atrial
... guide management, particularly if rhythm control is being considered, as left ventricular function determines choice of treatment.9 Any suspicion of underlying structural disease or heart failure means echocardiography is needed. ...
... guide management, particularly if rhythm control is being considered, as left ventricular function determines choice of treatment.9 Any suspicion of underlying structural disease or heart failure means echocardiography is needed. ...
An Experimental Study of 3-dimensional Cardiac Electrical Imaging
... that the AS estimated by 3DCEI is consistent in general pattern with that reconstructed by the Ensite system. In panel (b), the precise and the estimated location of the initiation site of activation are shown and compared. In this typical example, the localization ...
... that the AS estimated by 3DCEI is consistent in general pattern with that reconstructed by the Ensite system. In panel (b), the precise and the estimated location of the initiation site of activation are shown and compared. In this typical example, the localization ...
ECG Basics
... Left axis deviation -Left Anterior hemiblock -Ectopic ventricular beats and rhythms Extreme Right ...
... Left axis deviation -Left Anterior hemiblock -Ectopic ventricular beats and rhythms Extreme Right ...
Homogeneity out of heterogeneity.
... which operates at the organ level, regulates the output of the heart on a beat-to-beat basis by adjusting cardiac work capacity to changes in preload and afterload. Changing myocardial contractility regulates cardiac performance over a slower time course, largely by altering the Ca2` fluxes involved ...
... which operates at the organ level, regulates the output of the heart on a beat-to-beat basis by adjusting cardiac work capacity to changes in preload and afterload. Changing myocardial contractility regulates cardiac performance over a slower time course, largely by altering the Ca2` fluxes involved ...
Arrhythmogenic right ventricular dysplasia: from
... causes dysregulation of adipogenic pathway regulated by PPAR gamma and may explain fibrofatty infiltration of the myocardium in this form of ARVD. In patients affected with ARVD, comprehensive screening for gene mutations will yield a positive result in approximately 40 to 50% of cases (20). Sequenc ...
... causes dysregulation of adipogenic pathway regulated by PPAR gamma and may explain fibrofatty infiltration of the myocardium in this form of ARVD. In patients affected with ARVD, comprehensive screening for gene mutations will yield a positive result in approximately 40 to 50% of cases (20). Sequenc ...
to the Session 1 notes
... Thoracic ultrasonography can be an extremely useful tool in general practice. It is usually carried out in standing position although lateral recumbency is also valid. Small footprint micro-convex and sector probes are desired although linear probes are sometimes used for structures very near the ch ...
... Thoracic ultrasonography can be an extremely useful tool in general practice. It is usually carried out in standing position although lateral recumbency is also valid. Small footprint micro-convex and sector probes are desired although linear probes are sometimes used for structures very near the ch ...
Form versus disease: optimizing geometry during ventricular
... is steeper than for aortic stenosis because LVESVI is higher pre-operatively. Furthermore, late follow-up studies after aortic valve surgery show that chronic CHF and sudden death cause mortality [17] reproducing the same fatal consequences of dilated hearts after non-ischemic and ischemic disease. ...
... is steeper than for aortic stenosis because LVESVI is higher pre-operatively. Furthermore, late follow-up studies after aortic valve surgery show that chronic CHF and sudden death cause mortality [17] reproducing the same fatal consequences of dilated hearts after non-ischemic and ischemic disease. ...
Detection of Atrial Fibrillation in ECGs
... representing a series of heart beats, each with characteristic peaks that correspond to events during a single heart beat. Patients with or at risk of cardiovascular diseases often present ECGs that are irregular in rate and in morphology of the signal. There is a recognized industry in creating aut ...
... representing a series of heart beats, each with characteristic peaks that correspond to events during a single heart beat. Patients with or at risk of cardiovascular diseases often present ECGs that are irregular in rate and in morphology of the signal. There is a recognized industry in creating aut ...
Left ventricular hypertrophy: why does it happen?
... Fig. 2. Probability of cardiovascular survival in ESRD patients whose LV mass decreased (responders) and in those in whom it did not change or increased (non-responders). ...
... Fig. 2. Probability of cardiovascular survival in ESRD patients whose LV mass decreased (responders) and in those in whom it did not change or increased (non-responders). ...
Ventricular response during lungeing exercise in horses with lone
... cm left from the withers. All electrodes were connected to the recording device in the girth. ...
... cm left from the withers. All electrodes were connected to the recording device in the girth. ...
No Slide Title
... 2. Excitation of cardiac muscle fibers should be coordinated so that each chamber contracts as a unit. 3. Pair of atria and pair of ventricles should be coordinated so that both members of the pair ...
... 2. Excitation of cardiac muscle fibers should be coordinated so that each chamber contracts as a unit. 3. Pair of atria and pair of ventricles should be coordinated so that both members of the pair ...
Atrial Fibrillation, the Arrhythmia of the Elderly
... Abstract: Atrial fibrillation (AF) is a common clinical problem, particularly in the elderly, and in patients with organic heart disease. A small percentage of patients, have a potentially reversible cause. Atrial fibrillation is in most patients (approximately 70%) associated with chronic organic h ...
... Abstract: Atrial fibrillation (AF) is a common clinical problem, particularly in the elderly, and in patients with organic heart disease. A small percentage of patients, have a potentially reversible cause. Atrial fibrillation is in most patients (approximately 70%) associated with chronic organic h ...
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.