The Role of the Heart in Hypertension
... to earlier impressions, cardiac output was not infrequently elevated in various types of hypertension, how far could one label as cardiogenic the many types of hyperkinetic hypertension? [ 10, 181. The question is particularly pertinent since increased cardiac action is not the only, and possibly no ...
... to earlier impressions, cardiac output was not infrequently elevated in various types of hypertension, how far could one label as cardiogenic the many types of hyperkinetic hypertension? [ 10, 181. The question is particularly pertinent since increased cardiac action is not the only, and possibly no ...
Acute cardiogenic pulmonary edema – an important
... afterwards, during treadmill test. This is indirect proof that increased mitral regurgitation during physical effort can lead to ACPE. This study does not bring data on the causes of ACPE unrelated to physical effort. An old study, that included patients with ACPE with both preserved and depressed L ...
... afterwards, during treadmill test. This is indirect proof that increased mitral regurgitation during physical effort can lead to ACPE. This study does not bring data on the causes of ACPE unrelated to physical effort. An old study, that included patients with ACPE with both preserved and depressed L ...
Isolated right ventricular dysfunction in systemic sclerosis: latent pulmonary hypertension?
... ventricular free wall thickness and end-diastolic dimensions. At the tricuspid annulus, the E maximal velocity was decreased (8.9¡4 versus 11.7¡2.3 cm?s-1) and the isovolumic relaxation time corrected to RR interval was increased (6.5¡2.9 versus 4.5¡2.5%). The tissue Doppler imaging profile at the m ...
... ventricular free wall thickness and end-diastolic dimensions. At the tricuspid annulus, the E maximal velocity was decreased (8.9¡4 versus 11.7¡2.3 cm?s-1) and the isovolumic relaxation time corrected to RR interval was increased (6.5¡2.9 versus 4.5¡2.5%). The tissue Doppler imaging profile at the m ...
Special PICS Preview Issue North American
... Potential device-related adverse events that may occur following device implantation include: stent fracture resulting in recurrent obstruction, endocarditis, embolization or migration of the device, valvular dysfunction (stenosis or regurgitation), paravalvular leak, valvular thrombosis, pulmonary ...
... Potential device-related adverse events that may occur following device implantation include: stent fracture resulting in recurrent obstruction, endocarditis, embolization or migration of the device, valvular dysfunction (stenosis or regurgitation), paravalvular leak, valvular thrombosis, pulmonary ...
Diagnosis of Arrhythmogenic Right Ventricular Dysplasia: A Review1
... Prognosis and Therapy Although the prognosis of ARVD is considerably better than that of sustained ventricular tachycar dia with left ventricular heart disease, ARVD is a progressive disease and will probably lead to right ventricular failure in the long term unless sudden cardiac death occurs befo ...
... Prognosis and Therapy Although the prognosis of ARVD is considerably better than that of sustained ventricular tachycar dia with left ventricular heart disease, ARVD is a progressive disease and will probably lead to right ventricular failure in the long term unless sudden cardiac death occurs befo ...
Temporary Pacemakers
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
Temporary Pacemakers
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
Bystander CPR : The Easy Way to Save a Life
... to circulate to vital organs such as the brain and heart. CPR can keep a person alive until more advanced procedures (such as defibrillation - an electric shock to the chest) can treat the cardiac arrest. CPR started by a bystander doubles the likelihood of survival for victims of cardiac arrest. DE ...
... to circulate to vital organs such as the brain and heart. CPR can keep a person alive until more advanced procedures (such as defibrillation - an electric shock to the chest) can treat the cardiac arrest. CPR started by a bystander doubles the likelihood of survival for victims of cardiac arrest. DE ...
Implementing an AED Program - American Heart Association
... SCA is the abrupt loss of heart function in a person who may or may not have heart disease. The time and mode of death are unexpected. SCA occurs instantly or shortly after symptoms appear. Most SCAs are due to abnormal heart rhythms called arrhythmias. A common arrhythmia is ventricular fibrillatio ...
... SCA is the abrupt loss of heart function in a person who may or may not have heart disease. The time and mode of death are unexpected. SCA occurs instantly or shortly after symptoms appear. Most SCAs are due to abnormal heart rhythms called arrhythmias. A common arrhythmia is ventricular fibrillatio ...
Congenital secundum atrial septal defect and
... Abstract: Congenital secundum atrial septal defect (ASD) and membranous ventricular septal defect (VSD) were diagnosed in a 1-day-old Holstein-Friesian calf necropsied in the Department of Pathology of Mehmet Akif Ersoy University. The secundum atrial septal defect was 32.9 × 23.1 mm in width and wa ...
... Abstract: Congenital secundum atrial septal defect (ASD) and membranous ventricular septal defect (VSD) were diagnosed in a 1-day-old Holstein-Friesian calf necropsied in the Department of Pathology of Mehmet Akif Ersoy University. The secundum atrial septal defect was 32.9 × 23.1 mm in width and wa ...
PDF
... understanding (β = 0.43; p = 0.014) were significant predictors of HRV, adjusted for age, gender, baseline HRV, diabetes, beta-blockers, left ventricular ejection fraction (LVEF), attendance of cardiac rehabilitation, and depressive symptoms. Conclusions: As patients’ negative perceptions of their i ...
... understanding (β = 0.43; p = 0.014) were significant predictors of HRV, adjusted for age, gender, baseline HRV, diabetes, beta-blockers, left ventricular ejection fraction (LVEF), attendance of cardiac rehabilitation, and depressive symptoms. Conclusions: As patients’ negative perceptions of their i ...
2015 ACC/HRS/SCAI Left Atrial Appendage Occlusion Device
... (WATCHMAN, Boston Scientific, Marlborough, MA) has been evaluated in randomized controlled trials compared with the current standard of care. This device was recently approved for use in the United States by the Food and Drug Administration (FDA) as an alternative to warfarin for stroke prevention. ...
... (WATCHMAN, Boston Scientific, Marlborough, MA) has been evaluated in randomized controlled trials compared with the current standard of care. This device was recently approved for use in the United States by the Food and Drug Administration (FDA) as an alternative to warfarin for stroke prevention. ...
Structural and functional changes in maternal left ventricle during
... imaging, have been shown decreased significantly in late pregnancy while the traditional parameters did not reflect those functional changes [8]. However, the accuracy of 2D strain could be affected by the use of foreshortened views and out-of-plane motion [9]. Further technological advance of three ...
... imaging, have been shown decreased significantly in late pregnancy while the traditional parameters did not reflect those functional changes [8]. However, the accuracy of 2D strain could be affected by the use of foreshortened views and out-of-plane motion [9]. Further technological advance of three ...
Polar S810 as an Alternative Resource to the Use of the
... Background: The 4-second exercise test (T4s) evaluates the cardiac vagal tone during the initial heart rate (HR) transient at sudden dynamic exercise, through the identification of the cardiac vagal index (CVI) obtained from the electrocardiogram (ECG). Objective: To evaluate the use of the Polar S8 ...
... Background: The 4-second exercise test (T4s) evaluates the cardiac vagal tone during the initial heart rate (HR) transient at sudden dynamic exercise, through the identification of the cardiac vagal index (CVI) obtained from the electrocardiogram (ECG). Objective: To evaluate the use of the Polar S8 ...
2009 ACCF/AHA Focused Update on Perioperative Beta Blockade
... (ACCF/AHA) Task Force on Practice Guidelines has created a “focused update” process to revise the existing guideline recommendations that are affected by the evolving data or opinion. Prior to the initiation of this focused approach, periodic updates and revisions of existing guidelines required up ...
... (ACCF/AHA) Task Force on Practice Guidelines has created a “focused update” process to revise the existing guideline recommendations that are affected by the evolving data or opinion. Prior to the initiation of this focused approach, periodic updates and revisions of existing guidelines required up ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... industrialized countries, which is a serious complication of atherosclerotic coronary heart disease. In most patients (80-95%) it results from thrombotic occlusion of the related vessel resulting in infarct. Myocardial infarction may occur at any age but the frequency increases progressively with ag ...
... industrialized countries, which is a serious complication of atherosclerotic coronary heart disease. In most patients (80-95%) it results from thrombotic occlusion of the related vessel resulting in infarct. Myocardial infarction may occur at any age but the frequency increases progressively with ag ...
Swimming exercise reverses aging-related contractile abnormalities
... improves structural abnormalities of senescent female rat heart, although it does not change Ca2+ handling alterations further. Thereby, it improves contractile function of aged myocardium by mitigating detrimental effects of oxidative stress. (Cardiol J 2017; 24, 1: 85–93) Key words: aging, swimmin ...
... improves structural abnormalities of senescent female rat heart, although it does not change Ca2+ handling alterations further. Thereby, it improves contractile function of aged myocardium by mitigating detrimental effects of oxidative stress. (Cardiol J 2017; 24, 1: 85–93) Key words: aging, swimmin ...
1 General IntroductIon Pulmonary arterIal
... In Chapter 4, β-blocker therapy was evaluated. Beta-blocker therapy is a well-established treatment for left heart failure, but strongly discouraged in PH, due to its negative inotropic and chronotropic effects. We hypothesized that β-blocker therapy in PH is tolerated, if carefully introduced, and ...
... In Chapter 4, β-blocker therapy was evaluated. Beta-blocker therapy is a well-established treatment for left heart failure, but strongly discouraged in PH, due to its negative inotropic and chronotropic effects. We hypothesized that β-blocker therapy in PH is tolerated, if carefully introduced, and ...
off-pump coronary artery bypass surgery - Heart
... CABG—with respect to angina reduction and the need for repeat revascularisation, in comparison with medical treatment and percutaneous transluminal coronary angioplasty (PTCA), is subject to little discussion.w6–8 As a result, conventional bypass surgery has been quoted as “safe, effective, durable, ...
... CABG—with respect to angina reduction and the need for repeat revascularisation, in comparison with medical treatment and percutaneous transluminal coronary angioplasty (PTCA), is subject to little discussion.w6–8 As a result, conventional bypass surgery has been quoted as “safe, effective, durable, ...
Task Force Report Guidelines for the diagnosis and treatment of chronic
... typically breathlessness or fatigue, either at rest or during exertion, or ankle swelling and objective evidence of cardiac dysfunction at rest (Table 1). A clinical response to treatment directed at heart failure alone is not sufficient for diagnosis, although the patient should generally demonstrate ...
... typically breathlessness or fatigue, either at rest or during exertion, or ankle swelling and objective evidence of cardiac dysfunction at rest (Table 1). A clinical response to treatment directed at heart failure alone is not sufficient for diagnosis, although the patient should generally demonstrate ...
PDF - Circulation: Arrhythmia and Electrophysiology
... arrhythmias is indicated only in patients with a distant infarct and an ICD with recurrent ventricular tachycardia (VT) or VT storms refractory to medications. In this population, catheter ablation has been shown to be effective.4 ICD implantation combined with prophylactic catheter ablation remote ...
... arrhythmias is indicated only in patients with a distant infarct and an ICD with recurrent ventricular tachycardia (VT) or VT storms refractory to medications. In this population, catheter ablation has been shown to be effective.4 ICD implantation combined with prophylactic catheter ablation remote ...
Oxygen therapy for acute myocardial infarction
... breathe. We looked for the evidence to support this practice by searching for randomised controlled trials that compared the outcomes in patients given oxygen to the outcomes for patients given normal air to breathe. We were primarily interested in seeing whether there was a difference in the number ...
... breathe. We looked for the evidence to support this practice by searching for randomised controlled trials that compared the outcomes in patients given oxygen to the outcomes for patients given normal air to breathe. We were primarily interested in seeing whether there was a difference in the number ...
Relation of left ventricular twist and global strain with right ventricular
... tetralogy of Fallot patient. Global and segmental strain curves are automatically calculated providing global and regional peak systolic longitudinal strain. Global right ventricular strain: white dotted curve, apical right ventricular strain: green curve, mid right ventricular strain: blue curve, b ...
... tetralogy of Fallot patient. Global and segmental strain curves are automatically calculated providing global and regional peak systolic longitudinal strain. Global right ventricular strain: white dotted curve, apical right ventricular strain: green curve, mid right ventricular strain: blue curve, b ...
Endocardial wave front organization during ventricular
... wave fronts is small, perhaps only one (14 –16). This conclusion is supported by several pieces of evidence. First, on the basis of cinematographic studies, Wiggers stated (26) that soon after its onset VF cannot be described adequately as asynchronous contraction of individual myocardial fibers, bu ...
... wave fronts is small, perhaps only one (14 –16). This conclusion is supported by several pieces of evidence. First, on the basis of cinematographic studies, Wiggers stated (26) that soon after its onset VF cannot be described adequately as asynchronous contraction of individual myocardial fibers, bu ...
Cardiac contractility modulation
.jpg?width=300)
Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.