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... and thus its depolarisation dominates the ECG wave. The QRS complex ends at the J point and from here starts the ST segment. The ST segment which lies between the J point and the onset of the T wave, represents the period between the end of ventricular depolarisation and repolarisation. The T wave i ...
... and thus its depolarisation dominates the ECG wave. The QRS complex ends at the J point and from here starts the ST segment. The ST segment which lies between the J point and the onset of the T wave, represents the period between the end of ventricular depolarisation and repolarisation. The T wave i ...
Global Bi-ventricular endocardial distribution of activation rate
... different arrhythmogenic mechanisms changes. It has been proposed that defibrillation mechanisms and efficacy may differ in different pathological animal models during different stages of VF [9]. Panfilov et al. reported that the excitation frequency is an important index in VF that can reflect the ...
... different arrhythmogenic mechanisms changes. It has been proposed that defibrillation mechanisms and efficacy may differ in different pathological animal models during different stages of VF [9]. Panfilov et al. reported that the excitation frequency is an important index in VF that can reflect the ...
Novel Techniques for Characterizing Myocardial Structure and
... For decades, B-mode imaging and spectral Doppler analysis were the only methods available for the quantification of ventricular function. Recently new technologies have become available that allow for more accurate quantification of global and regional ventricular function: contrast echocardiography ...
... For decades, B-mode imaging and spectral Doppler analysis were the only methods available for the quantification of ventricular function. Recently new technologies have become available that allow for more accurate quantification of global and regional ventricular function: contrast echocardiography ...
The Two Extremes of Cardiac Sarcoidosis and the Effect of
... granulomas were seen (diagnosed clinically by an earlier biopsy). This report describes findings in these 2 patients to point out the huge spectrum of myocardial changes in patients with cardiac sarcoidosis, and the potential effect of long term prednisone therapy in this condition. Patients Studied ...
... granulomas were seen (diagnosed clinically by an earlier biopsy). This report describes findings in these 2 patients to point out the huge spectrum of myocardial changes in patients with cardiac sarcoidosis, and the potential effect of long term prednisone therapy in this condition. Patients Studied ...
Atrial Fibrillation
... January CT, Wann LS, Alpert JS et al. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol 2014; 64: e1-76. ...
... January CT, Wann LS, Alpert JS et al. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol 2014; 64: e1-76. ...
Extent of the Problem - Miami
... Know your local EMS number Give the location of call Telephone number The nature of the emergency Advise that AED is on the scene Don’t hang up until dispatcher advises ...
... Know your local EMS number Give the location of call Telephone number The nature of the emergency Advise that AED is on the scene Don’t hang up until dispatcher advises ...
Drugs for Heart Failure
... There is no place for β blockers in decompensated patients. β blockers should be stopped during an episode of acute heart failure. ...
... There is no place for β blockers in decompensated patients. β blockers should be stopped during an episode of acute heart failure. ...
Housecalls Puzzler September 2014
... fibrillation competing with the normal SA node in the atrium The AV node is stimulated repeatedly from different focus. It irregularly allows an impulse through causing an irregularly, irregular heart rate ...
... fibrillation competing with the normal SA node in the atrium The AV node is stimulated repeatedly from different focus. It irregularly allows an impulse through causing an irregularly, irregular heart rate ...
Premature Ventricular Contraction-Induced Systolic Heart Failure: A
... presentation can be late and in some cases only after manifest systolic HF develops. In other cases, it can be extremely difficult to determine whether the frequent VPDs are the origin or the consequence of a NICM. Frequently VPDs are considered secondary to the NICM and not treated aggressively. It ...
... presentation can be late and in some cases only after manifest systolic HF develops. In other cases, it can be extremely difficult to determine whether the frequent VPDs are the origin or the consequence of a NICM. Frequently VPDs are considered secondary to the NICM and not treated aggressively. It ...
View Revision Note
... relaxes and does not need to receive nerve impulses to make it contract. Cardiac muscle can contract indefinitely without suffering fatigue. It is also involuntary, in that it does not have to (and indeed cannot be) controlled voluntarily. Heart muscle will contract even in the absence of nervous si ...
... relaxes and does not need to receive nerve impulses to make it contract. Cardiac muscle can contract indefinitely without suffering fatigue. It is also involuntary, in that it does not have to (and indeed cannot be) controlled voluntarily. Heart muscle will contract even in the absence of nervous si ...
Goldberger`s Triad in Dilated Cardiomyopathy—Can it Predict the
... left ventricular internal diameters (both end-systolic and end-diastolic) and the left ventricular ejection fraction between group 1 versus group 2 patients. Discussion Dilated cardiomyopathy is a disease of varied aetiologies. It is noteworthy that a substantial proportion of our patients had occul ...
... left ventricular internal diameters (both end-systolic and end-diastolic) and the left ventricular ejection fraction between group 1 versus group 2 patients. Discussion Dilated cardiomyopathy is a disease of varied aetiologies. It is noteworthy that a substantial proportion of our patients had occul ...
Gibraltar Public Access D Programme part 2 Sudden Cardia
... cardiomyopathy (ARVC) and dilated cardiomyopathy (DCM). Myocarditis – an inflammation of the heat muscle like sarcoidosis, amyloidosis and infections can also cause rhythm disturbance Congenital heart disease such as Wolff-Parkinson-White syndrome and EhlerDanlos Syndrome or Marfans Syndrome are als ...
... cardiomyopathy (ARVC) and dilated cardiomyopathy (DCM). Myocarditis – an inflammation of the heat muscle like sarcoidosis, amyloidosis and infections can also cause rhythm disturbance Congenital heart disease such as Wolff-Parkinson-White syndrome and EhlerDanlos Syndrome or Marfans Syndrome are als ...
Comment - Cardiac Arrhythmias
... and complications associated with antiarrhythmic drug treatment and left atrial ablation/pulmonary vein isolation. In every study, ablation has proved more effective.28,31 Adverse procedure-related complications dominate in early follow-up, but the complications of antiarrhythmic drugs accumulate du ...
... and complications associated with antiarrhythmic drug treatment and left atrial ablation/pulmonary vein isolation. In every study, ablation has proved more effective.28,31 Adverse procedure-related complications dominate in early follow-up, but the complications of antiarrhythmic drugs accumulate du ...
Tako Tsubo Cardiomyopatie
... 1- 2% of cases diagnosed as acute coronary syndrome mostly affects women in their ...
... 1- 2% of cases diagnosed as acute coronary syndrome mostly affects women in their ...
Sinus Rhythms
... the junction fires regularly ahead of the SA node, a junctional rhythm (shown below) can occur. • Atria stimulated in reverse direction – inverted P wave. • Normal QRS (ventricles stimulated via normal pathway). • P wave may be simultaneous with QRS or may even follow. ...
... the junction fires regularly ahead of the SA node, a junctional rhythm (shown below) can occur. • Atria stimulated in reverse direction – inverted P wave. • Normal QRS (ventricles stimulated via normal pathway). • P wave may be simultaneous with QRS or may even follow. ...
Hammock Bridge on Fire: Complete AV Block in a Patient
... block at the time of diagnosis [4], and roughly 30% on long-term follow-up [5], at a rate of 2% per year [3]. Although complete heart block is thus a well-recognized long-term complication in patients with CCTGA, to the best of our knowledge this is the first case description of a concomitant access ...
... block at the time of diagnosis [4], and roughly 30% on long-term follow-up [5], at a rate of 2% per year [3]. Although complete heart block is thus a well-recognized long-term complication in patients with CCTGA, to the best of our knowledge this is the first case description of a concomitant access ...
Section 1
... the normalized data for different size individuals, the normal range is about 3.0 – 3.5 L/min/m2 ...
... the normalized data for different size individuals, the normal range is about 3.0 – 3.5 L/min/m2 ...
a - rguhs
... Methods of collection of data : The study is carried out on all patients attending with systemic hypertension, diagnosed by JNC VII criteria and managed at BLDEA’s Medical College and Hospital. Detailed history is taken, thorough GPE will be done through cardiovalcular examination will be carried ou ...
... Methods of collection of data : The study is carried out on all patients attending with systemic hypertension, diagnosed by JNC VII criteria and managed at BLDEA’s Medical College and Hospital. Detailed history is taken, thorough GPE will be done through cardiovalcular examination will be carried ou ...
Name: Dr
... The Chinese University of Hong Kong, Hong Kong Heart failure is a disease with high morbidity and mortality. It is also the commonest cause of medical ward admission in developed countries. The incidence of heart failure has been increasing world-wide in the past two decades. Studies observed that a ...
... The Chinese University of Hong Kong, Hong Kong Heart failure is a disease with high morbidity and mortality. It is also the commonest cause of medical ward admission in developed countries. The incidence of heart failure has been increasing world-wide in the past two decades. Studies observed that a ...
PowerPoint 演示文稿 - Shandong University
... Determinants of Cardiac Output - Contractility Contractility (neural and humoral regulation) Sympathetic nerve (norepinephrine) or the epinephrine and norepinephrine (adrenal gland) enhance the strength and the velocity of the cardiac contraction. The change of myocardial property is independent of ...
... Determinants of Cardiac Output - Contractility Contractility (neural and humoral regulation) Sympathetic nerve (norepinephrine) or the epinephrine and norepinephrine (adrenal gland) enhance the strength and the velocity of the cardiac contraction. The change of myocardial property is independent of ...
parasympathomimetic stimulation provokes vagally
... 7-15 minutes clinical PVC’s appeared (figure 1) and enabled activation mapping and successful ablation in all 3 patients. Earliest activation during mapping was found postero-lateral, septal and anterior in the RVOT. Early signals were found up to 40ms before QRS. Post ablation provocation with Neos ...
... 7-15 minutes clinical PVC’s appeared (figure 1) and enabled activation mapping and successful ablation in all 3 patients. Earliest activation during mapping was found postero-lateral, septal and anterior in the RVOT. Early signals were found up to 40ms before QRS. Post ablation provocation with Neos ...
The Prognostic Value of the Left Ventricular End Diastolic Volume
... Introduction: arrhythmia is a common clinical problem after any acute ischemic episode[1,2] death is frequently implicated from the malignant arrhythmia[3,4, 5, 6] the heart function is usually governed by heart rate, the myocardial contractile status (i.e. the prior length of myocardial fiber accor ...
... Introduction: arrhythmia is a common clinical problem after any acute ischemic episode[1,2] death is frequently implicated from the malignant arrhythmia[3,4, 5, 6] the heart function is usually governed by heart rate, the myocardial contractile status (i.e. the prior length of myocardial fiber accor ...
Ventricular Assist Devices and Total Artificial Hearts
... AND TOTAL ARTIFICIAL HEARTS Description: ...
... AND TOTAL ARTIFICIAL HEARTS Description: ...
depolarization waves.
... • Only every second, third, fourth, or fifth of these waves may be followed by the ventricular complex (QRST complex). ...
... • Only every second, third, fourth, or fifth of these waves may be followed by the ventricular complex (QRST complex). ...
Slide 1
... pharmacological therapy is insufficient or not tolerated 3. Intravenous amiodarone can be useful to control heart rate in patients with AF when other measures are unsuccessful or contraindicated JACC. 2014;64(21):2246-2280 ...
... pharmacological therapy is insufficient or not tolerated 3. Intravenous amiodarone can be useful to control heart rate in patients with AF when other measures are unsuccessful or contraindicated JACC. 2014;64(21):2246-2280 ...
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.