Figure 4 - JACC: Cardiovascular Interventions
... plane. (D) The long-axis reconstruction image of the left ventricle, which presents the angulations between the long axis of aortic root and left ventricular outflow tract. (E, F) The distances between the ostia of both coronary arteries and the annulus were measured. Circ ¼ circumference; MSCT ¼ mul ...
... plane. (D) The long-axis reconstruction image of the left ventricle, which presents the angulations between the long axis of aortic root and left ventricular outflow tract. (E, F) The distances between the ostia of both coronary arteries and the annulus were measured. Circ ¼ circumference; MSCT ¼ mul ...
of End-Diastolic Volume
... was highly preload sensitive, altering 1.7±0.1-fold a given percent change in end-diastolic volume (EDV). This preload dependence was reduced by dividing PWRDI.a by EDV but was virtually eliminated when PWRmaX was divided by EDV2. This latter index also displayed little change in response to as much ...
... was highly preload sensitive, altering 1.7±0.1-fold a given percent change in end-diastolic volume (EDV). This preload dependence was reduced by dividing PWRDI.a by EDV but was virtually eliminated when PWRmaX was divided by EDV2. This latter index also displayed little change in response to as much ...
An adaptive singular spectrum analysis approach to murmur
... pulmonary arterial vasculature. Although most commonly diagnosed and treated in the pediatric population, individuals with complex congenital heart disease and more severe forms of isolated PS are surviving into adulthood and require ongoing assessment and cardiovascular care. Functional or physiolo ...
... pulmonary arterial vasculature. Although most commonly diagnosed and treated in the pediatric population, individuals with complex congenital heart disease and more severe forms of isolated PS are surviving into adulthood and require ongoing assessment and cardiovascular care. Functional or physiolo ...
Inability of Potassium Canrenoate to Convert Experimentally
... to alter the ouabain-induced ventricular automaticity. The arrhythmia was allowed to continue uninterrupted for at least 20 minutes to ensure against a spontaneous return to normal sinus rhythm. Then, each ouabain-intoxicated dog was given a dose of potassium canrenoate (30 mg/kg, iv). One of the ei ...
... to alter the ouabain-induced ventricular automaticity. The arrhythmia was allowed to continue uninterrupted for at least 20 minutes to ensure against a spontaneous return to normal sinus rhythm. Then, each ouabain-intoxicated dog was given a dose of potassium canrenoate (30 mg/kg, iv). One of the ei ...
Cardiac - JRC-DMS
... Copyright © 2016 Joint Review Committee on Education in Diagnostic Medical Sonography (JRC-DMS). All rights reserved. Return to Table of Contents» ...
... Copyright © 2016 Joint Review Committee on Education in Diagnostic Medical Sonography (JRC-DMS). All rights reserved. Return to Table of Contents» ...
Aortic Aneurysm Guide
... have any symptoms at all. The aneurysm is usually discovered by X-ray during a routine health exam for some other, unrelated condition. Many aortic aneurysms will grow slowly for years before they are large enough to cause symptoms. Even large aneurysms may not cause any symptoms. When symptoms do o ...
... have any symptoms at all. The aneurysm is usually discovered by X-ray during a routine health exam for some other, unrelated condition. Many aortic aneurysms will grow slowly for years before they are large enough to cause symptoms. Even large aneurysms may not cause any symptoms. When symptoms do o ...
DOI: 10.1161/CIRCULATIONAHA.106.661983 published online Jul
... eart failure is a common cardiovascular syndrome that may occur in conjunction with either normal or abnormal left ventricular (LV) ejection fraction (EF). Patients with reduced EF have predominantly systolic dysfunction, whereas those with heart failure symptoms despite normal EF (HFNEF) are though ...
... eart failure is a common cardiovascular syndrome that may occur in conjunction with either normal or abnormal left ventricular (LV) ejection fraction (EF). Patients with reduced EF have predominantly systolic dysfunction, whereas those with heart failure symptoms despite normal EF (HFNEF) are though ...
4 Arrhythmias in Children and Young Adults Harinder R. Singh
... 1980). On 24-hour ECG monitoring, 64% of young women (Sobotka et al. 1981) and 56% of male adolescents had PACs (Brodsky et al. 1977). Frequent causes of PACs include intake of caffeine, nicotine, alcohol, and other stimulants. PACs can be associated with atrial enlargement, electrolyte abnormalitie ...
... 1980). On 24-hour ECG monitoring, 64% of young women (Sobotka et al. 1981) and 56% of male adolescents had PACs (Brodsky et al. 1977). Frequent causes of PACs include intake of caffeine, nicotine, alcohol, and other stimulants. PACs can be associated with atrial enlargement, electrolyte abnormalitie ...
TRANSCATHETER AORTIC VALVE IMPLANTATION: REVIEW AND
... Non-surgical, percutaneous treatment of patients with severe symptomatic aortic valve stenosis was initiated in 1985, with the introduction of balloon aortic valvuloplasty.6-8 In 1986, Alain Cribier reported on balloon aortic valvuloplasty carried out in three elderly patients with acquired severe a ...
... Non-surgical, percutaneous treatment of patients with severe symptomatic aortic valve stenosis was initiated in 1985, with the introduction of balloon aortic valvuloplasty.6-8 In 1986, Alain Cribier reported on balloon aortic valvuloplasty carried out in three elderly patients with acquired severe a ...
The epsilon waves clinical characterization and electrophysiological
... why the characteristic ECG abnormalities are most prominent in those lends. The following ECG shows epsilon waves with 1 (single deflection), 2, 3 or multiple waves. B. New concept: in many cases the definition of epsilon waves/ epsilon potentials remains difficult because some authors consider that ...
... why the characteristic ECG abnormalities are most prominent in those lends. The following ECG shows epsilon waves with 1 (single deflection), 2, 3 or multiple waves. B. New concept: in many cases the definition of epsilon waves/ epsilon potentials remains difficult because some authors consider that ...
Molecular Mechanisms of Myocardial Remodeling
... Early ventricular remodeling following coronary occlusion is dominated by infarct expansion, which is an acute dilation of the infarction area that cannot be explained by additional myocardial necrosis. Infarct expansion is caused by death and slippage of the myocytes; it usually predominates in the ...
... Early ventricular remodeling following coronary occlusion is dominated by infarct expansion, which is an acute dilation of the infarction area that cannot be explained by additional myocardial necrosis. Infarct expansion is caused by death and slippage of the myocytes; it usually predominates in the ...
Redalyc.Treatment of Chronic Atrial Fibrillation During Surgery for
... During hospitalization and 12 weeks after surgery, 19 patients received amiodarone 200 mg daily and Warfarin sodium as INR. DISCUSSION Atrial fibrillation is a supraventricular arrhythmia of higher clinical interest, not only for its high incidence, but also by the possibility of developing severe c ...
... During hospitalization and 12 weeks after surgery, 19 patients received amiodarone 200 mg daily and Warfarin sodium as INR. DISCUSSION Atrial fibrillation is a supraventricular arrhythmia of higher clinical interest, not only for its high incidence, but also by the possibility of developing severe c ...
Assessment of clients with CVS conditions
... Chest pain caused by CAD is often precipitated by physical or emotional exertion , a meal or being out in the cold. Usually located in the substernal region often radiates to the neck, left arm, the back, or jaw. The quality of cardiac chest pain is often described as heaviness, tightness, squeezing ...
... Chest pain caused by CAD is often precipitated by physical or emotional exertion , a meal or being out in the cold. Usually located in the substernal region often radiates to the neck, left arm, the back, or jaw. The quality of cardiac chest pain is often described as heaviness, tightness, squeezing ...
The Fontan Circulation: The Known, the Unknown and
... extracardiac conduit to avoid prosthesis-patient mismatch [7], but the superiority of the outcome in the long term still needs to be determined. ...
... extracardiac conduit to avoid prosthesis-patient mismatch [7], but the superiority of the outcome in the long term still needs to be determined. ...
Future Perspectives in the Pharmacological Treatment of Atrial
... associated with Class IA, IC and Class III antiarrhythmic drug administration in patient populations with impaired ventricular function [57-58, 76]. Among Class III agents, most likely due to its multi-channel blocking properties, amiodarone has been the most effective and relatively safe drug with ...
... associated with Class IA, IC and Class III antiarrhythmic drug administration in patient populations with impaired ventricular function [57-58, 76]. Among Class III agents, most likely due to its multi-channel blocking properties, amiodarone has been the most effective and relatively safe drug with ...
NT-proBNP and the diagnosis of exercise-induced myocardial ischaemia 264
... subjects with reversible ischaemia, however there was a large overlap in values. The secretion of BNP is a dynamic process, which is dependent on mechanical (ventricular stretch) as well as endocrine factors.34 Ventricular function is also important; the dysfunctional ventricle can secrete BNP more ...
... subjects with reversible ischaemia, however there was a large overlap in values. The secretion of BNP is a dynamic process, which is dependent on mechanical (ventricular stretch) as well as endocrine factors.34 Ventricular function is also important; the dysfunctional ventricle can secrete BNP more ...
Is Impedance Cardiography-Derived Systolic Time
... A total of 52 patients were evaluated. Baseline characteristics are shown in Table 1. MUGA EF was obtained on 23/52 (44.2%) and echo EF on 29/52 (55.8%). Mean EF was 37.6 ± 20.2%, range 10 to 80%. A total of 39/52 (75%) had EF < 50%. The mean time between EF and STR measurements was 3.54 ± 4.67 days ...
... A total of 52 patients were evaluated. Baseline characteristics are shown in Table 1. MUGA EF was obtained on 23/52 (44.2%) and echo EF on 29/52 (55.8%). Mean EF was 37.6 ± 20.2%, range 10 to 80%. A total of 39/52 (75%) had EF < 50%. The mean time between EF and STR measurements was 3.54 ± 4.67 days ...
Cardiovascular magnetic resonance assessment of the aortic valve
... Data expressed as mean ± standard deviation. Linear regression analysis was performed to describe correlations between the different techniques. The mean AVA of the different techniques was compared by student's t-Test for paired samples. Intra- and interobserver variability (n = 8) were expressed a ...
... Data expressed as mean ± standard deviation. Linear regression analysis was performed to describe correlations between the different techniques. The mean AVA of the different techniques was compared by student's t-Test for paired samples. Intra- and interobserver variability (n = 8) were expressed a ...
M P I.
... 13%, although statistical testing for these differences was not reported. Combined analysis of complications concluded the following rates of adverse events: death (1%), stroke (1%), cardiac perforation (1%), and complete heart block (1.6%). The 2 published RCTs evaluate catheter ablation plus impla ...
... 13%, although statistical testing for these differences was not reported. Combined analysis of complications concluded the following rates of adverse events: death (1%), stroke (1%), cardiac perforation (1%), and complete heart block (1.6%). The 2 published RCTs evaluate catheter ablation plus impla ...
Aerobic Exercise Training Promotes Physiological Cardiac
... hypertrophy due to volume overload is characterized by addition of sarcomeres in series and ...
... hypertrophy due to volume overload is characterized by addition of sarcomeres in series and ...
The SynCardia CardioWeste Total Artificial Heart
... Additional rationale for the TAH exists from an economic perspective. In the bridge scenario, allowing patients to recover prior to transplantation has the possibility of reducing the cost of hospitalization through reduced ICU stay and lower acute care levels for patients. Further, in the future, i ...
... Additional rationale for the TAH exists from an economic perspective. In the bridge scenario, allowing patients to recover prior to transplantation has the possibility of reducing the cost of hospitalization through reduced ICU stay and lower acute care levels for patients. Further, in the future, i ...
Corrigan`s Disease
... by the standard works on the treatment of heart disease". T o prove his point he quotes from the works of Corvisart, Laennec, and Bertin in which bleeding, blistering, starvation, and purging are advocated. He paints out that the cardiac hypertrophy ofaorticregurgitation is "a provision of nature to ...
... by the standard works on the treatment of heart disease". T o prove his point he quotes from the works of Corvisart, Laennec, and Bertin in which bleeding, blistering, starvation, and purging are advocated. He paints out that the cardiac hypertrophy ofaorticregurgitation is "a provision of nature to ...
Echocardiographic Evaluation of Pericardial Disease
... respiratory cycle demonstrating pressures of approximately –6 mm Hg at end inspiration and –3 mm Hg at end expiration (NB – as measured by a fluid filled, non-balloon tipped catheter). It is the lowering of intrathoracic and pericardial pressure during inspiration that permits increased filling of t ...
... respiratory cycle demonstrating pressures of approximately –6 mm Hg at end inspiration and –3 mm Hg at end expiration (NB – as measured by a fluid filled, non-balloon tipped catheter). It is the lowering of intrathoracic and pericardial pressure during inspiration that permits increased filling of t ...
the relationship between electrical and mechanical - Heart
... in the brachial artery (B.A.) and the right atrium (R.A.), and electrocardiogram lead IT. P-Ats = 0 080 sec. Q-BAs = 0 160 sec. In this and all other records the distance between vertical lines is equal to 0 040 sec. was from 0-031 to 0-035 sec. Garten (quoted by Wiggers, 1923), using an electrical ...
... in the brachial artery (B.A.) and the right atrium (R.A.), and electrocardiogram lead IT. P-Ats = 0 080 sec. Q-BAs = 0 160 sec. In this and all other records the distance between vertical lines is equal to 0 040 sec. was from 0-031 to 0-035 sec. Garten (quoted by Wiggers, 1923), using an electrical ...
Doppler Echocardiography and Hemodynamic Parameters in
... in view of the great variability of the correlation coefficients between echocardiographic and hemodynamic data, when different authors are compared. Thus, echocardiography is still limited in its ability to provide timely hemodynamic data usually obtained through catheterization. High values of cor ...
... in view of the great variability of the correlation coefficients between echocardiographic and hemodynamic data, when different authors are compared. Thus, echocardiography is still limited in its ability to provide timely hemodynamic data usually obtained through catheterization. High values of cor ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.