Transcoronary Ethanol Ablation for Recurrent Ventricular
... Background—Despite substantial progress, radiofrequency catheter ablation (RFCA) fails in some patients. After encouraging results with transcoronary ethanol ablation (TCEA), we began offering TCEA routinely when endocardial and epicardial RFCA failed or a deep intramural substrate was likely. Metho ...
... Background—Despite substantial progress, radiofrequency catheter ablation (RFCA) fails in some patients. After encouraging results with transcoronary ethanol ablation (TCEA), we began offering TCEA routinely when endocardial and epicardial RFCA failed or a deep intramural substrate was likely. Metho ...
The Effect of Liver Cirrhosis Severity on Left Ventricular Systolic and
... found to be an important determinant for the development of the hepatorenal syndrome and diastolic dysfunction is an important underlying factor in the development of certain arrhythmias, especially in the genesis of atrial fibrillation [7] . Since cardiac function is nearly normal at rest, the diag ...
... found to be an important determinant for the development of the hepatorenal syndrome and diastolic dysfunction is an important underlying factor in the development of certain arrhythmias, especially in the genesis of atrial fibrillation [7] . Since cardiac function is nearly normal at rest, the diag ...
Cardiac anatomy and physiology
... RELATIONSHIP BETWEEN P & QRS (HOW DO WE KNOW THIS…. WIDE QRS) PR – NO PATTERN QRS – WIDE ...
... RELATIONSHIP BETWEEN P & QRS (HOW DO WE KNOW THIS…. WIDE QRS) PR – NO PATTERN QRS – WIDE ...
ventricular tachycardia: recognition and Management for the internist
... requiring immediate care. In the primary care settings it is often more important to first judge the hemodynamic effects of the arrhythmia rather than its actual nature. Thus the first step is the assessment of the vital signs, to differentiate between tachycardia with or without hemodynamic instabi ...
... requiring immediate care. In the primary care settings it is often more important to first judge the hemodynamic effects of the arrhythmia rather than its actual nature. Thus the first step is the assessment of the vital signs, to differentiate between tachycardia with or without hemodynamic instabi ...
An Overview of Current Cardiac Resynchronization Therapy
... in clinical trials of resynchronization therapy.13 Although there were some patients with more severe acute decompensation benefits from resynchronization therapy in the case report, CRT is not used as a “rescue therapy” for such patients. However, patients with ambulatory NYHA Fc IV symptoms who de ...
... in clinical trials of resynchronization therapy.13 Although there were some patients with more severe acute decompensation benefits from resynchronization therapy in the case report, CRT is not used as a “rescue therapy” for such patients. However, patients with ambulatory NYHA Fc IV symptoms who de ...
Left ventricle
... – Complete pathway through interventricular septum into apex and ventricular walls – More elaborate on left side of heart – AV bundle and subendocardial conducting network depolarize 30X/minute in absence of AV node input ...
... – Complete pathway through interventricular septum into apex and ventricular walls – More elaborate on left side of heart – AV bundle and subendocardial conducting network depolarize 30X/minute in absence of AV node input ...
Consensus Statement on Acute Heart Failure with Preserved
... The annual mortality rate in outpatients is 5% to 8% in HFPSF versus 10% to 15% in SHF. The clinical differences between both types of HF in hospitalized patients have already been mentioned; in-hospital outcomes are slightly more favorable for HFPSF. (28) Some series have reported that adjusted mor ...
... The annual mortality rate in outpatients is 5% to 8% in HFPSF versus 10% to 15% in SHF. The clinical differences between both types of HF in hospitalized patients have already been mentioned; in-hospital outcomes are slightly more favorable for HFPSF. (28) Some series have reported that adjusted mor ...
Pulmonary valve replacement after surgical repair
... iii. LV end-diastolic volume index ≥65 mL/m2 iv. RV ejection fraction ≤45% v. RV outflow tract aneurysm vi. Clinical criteria: exercise intolerance, symptoms and signs of heart failure, cardiac medications, syncope, sustained ventricular tachycardia 2. Presence of other haemodynamically significan ...
... iii. LV end-diastolic volume index ≥65 mL/m2 iv. RV ejection fraction ≤45% v. RV outflow tract aneurysm vi. Clinical criteria: exercise intolerance, symptoms and signs of heart failure, cardiac medications, syncope, sustained ventricular tachycardia 2. Presence of other haemodynamically significan ...
Relation between isovolumic relaxation period of left - Heart
... related great arteries. More recently, Gutgesell5 has used the ratio PEP/ET of the left ventricle to estimate pulmonary pressure in d-transposition of the great arteries. Although the isovolumic relaxation time (IRT) of the right ventricle has long been shown to be a good index of pulmonary pressure ...
... related great arteries. More recently, Gutgesell5 has used the ratio PEP/ET of the left ventricle to estimate pulmonary pressure in d-transposition of the great arteries. Although the isovolumic relaxation time (IRT) of the right ventricle has long been shown to be a good index of pulmonary pressure ...
Right ventricular dysfunction in patients with idiopathic dilated
... to 65% [13,14]. Several studies have demonstrated the additional prognostic value of RV dysfunction in HF and, most particularly, in idiopathic DCM [15—18]. Propensity analyses are rarely used in clinical studies; they are mostly used in pharmacological and epidemiological studies, to counter the ef ...
... to 65% [13,14]. Several studies have demonstrated the additional prognostic value of RV dysfunction in HF and, most particularly, in idiopathic DCM [15—18]. Propensity analyses are rarely used in clinical studies; they are mostly used in pharmacological and epidemiological studies, to counter the ef ...
article in press - Bahman Arrhythmia Clinic
... mild forms of the disease may not be encompassed by these criteria. The clinical presentation varies from silent forms with an exercise-related episode of syncope or sudden death as first manifestation to biventricular cardiac failure that requires cardiac transplantation. Right ventricular failure ...
... mild forms of the disease may not be encompassed by these criteria. The clinical presentation varies from silent forms with an exercise-related episode of syncope or sudden death as first manifestation to biventricular cardiac failure that requires cardiac transplantation. Right ventricular failure ...
The Cardiovascular System: The Heart
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
Introduction - Australian Doctor
... branch block (LBBB) in young healthy males has been shown to be about 0.05%. Over 90% of these have no evidence of structural heart disease on further investigation.11 No increase in mortality was observed in the subpopulation without structural heart disease. Data from the Framingham Heart Study ha ...
... branch block (LBBB) in young healthy males has been shown to be about 0.05%. Over 90% of these have no evidence of structural heart disease on further investigation.11 No increase in mortality was observed in the subpopulation without structural heart disease. Data from the Framingham Heart Study ha ...
Effects of endotoxic shock on right ventricular systolic
... patients [1]. Among the numerous complications of septic shock, right heart failure can be lethal [2], but little is known about dynamic right ventricular (RV) function during septic shock [3]. Indeed, while low peripheral vascular resistance in sepsis decreases left ventricular afterload, increased ...
... patients [1]. Among the numerous complications of septic shock, right heart failure can be lethal [2], but little is known about dynamic right ventricular (RV) function during septic shock [3]. Indeed, while low peripheral vascular resistance in sepsis decreases left ventricular afterload, increased ...
vsd closure following pulmonary artery banding in congenital vsd
... larger than originally intended.2 One hundred and one patients were banded between 1958 and 1970; fewer bands were placed in later years because early total correction was feasible for certain conditions. When analyzed by preoperative diagnoses, the data revealed that children with a single ventricl ...
... larger than originally intended.2 One hundred and one patients were banded between 1958 and 1970; fewer bands were placed in later years because early total correction was feasible for certain conditions. When analyzed by preoperative diagnoses, the data revealed that children with a single ventricl ...
Figure 12-9(b) - Cloudfront.net
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
Is Myocardial Recovery Possible and How Do You Measure It?
... heart was not simply unloaded, but rather that there were fundamental changes in the biological properties of the heart that allowed the ventricle to return toward normal size, shape, and function [2]. Moreover, there were anecdotal reports that some patients could be weaned from their VADs [4, 5]. ...
... heart was not simply unloaded, but rather that there were fundamental changes in the biological properties of the heart that allowed the ventricle to return toward normal size, shape, and function [2]. Moreover, there were anecdotal reports that some patients could be weaned from their VADs [4, 5]. ...
6 Heart Sounds
... M1 Intensity Because the M1 component corresponds to the mitral valve closure and is produced by sudden deceleration and dissipation of energy of the moving column of blood in the left ventricle, its intensity will depend on the energy imparted to that column of blood by the contracting ventricle. T ...
... M1 Intensity Because the M1 component corresponds to the mitral valve closure and is produced by sudden deceleration and dissipation of energy of the moving column of blood in the left ventricle, its intensity will depend on the energy imparted to that column of blood by the contracting ventricle. T ...
Recommendations for participation in competitive and leisure sports
... ‘Recommendations for competitive sports participation in athletes with cardiovascular disease’, Eur Heart J 2005; 26:1422–1445. ...
... ‘Recommendations for competitive sports participation in athletes with cardiovascular disease’, Eur Heart J 2005; 26:1422–1445. ...
Heart failure with preserved ejection fraction (HFPEF).
... True cardiac hypertrophy has little in common with limited myocardial infarction, and in both conditions, the underlying mechanisms that drive LV remodeling are likely to be different and, actually, they react differently to drug treatment. Recently, stringent criteria have been proposed for the dia ...
... True cardiac hypertrophy has little in common with limited myocardial infarction, and in both conditions, the underlying mechanisms that drive LV remodeling are likely to be different and, actually, they react differently to drug treatment. Recently, stringent criteria have been proposed for the dia ...
PDF - Circulation: Arrhythmia and Electrophysiology
... Methods and Results—We conducted a multicenter cohort study in patients with transposition of the great arteries to determine actuarial rates of implantable cardioverter defibrillator shocks, identify risk factors, assess underlying arrhythmias, and characterize complications. Overall, 37 patients ( ...
... Methods and Results—We conducted a multicenter cohort study in patients with transposition of the great arteries to determine actuarial rates of implantable cardioverter defibrillator shocks, identify risk factors, assess underlying arrhythmias, and characterize complications. Overall, 37 patients ( ...
Advances in Arrhythmia and Electrophysiology
... Leads I, aVF, and frontal plane vectorcardiogram shown at baseline, during ventricular pacing, 1 hour after interruption of ventricular pacing for 7, 21, and 3 days after cessation of ventricular pacing. Leads I and aVF are shown (top). At baseline (left column), the T waves during sinus rhythm are ...
... Leads I, aVF, and frontal plane vectorcardiogram shown at baseline, during ventricular pacing, 1 hour after interruption of ventricular pacing for 7, 21, and 3 days after cessation of ventricular pacing. Leads I and aVF are shown (top). At baseline (left column), the T waves during sinus rhythm are ...
analysis of blood flow in 3d heart valve model under steady state
... Mitral Valve and Aortic Valve will cause death if it not immediately detected. The aims of this study are to investigate the blood flow pattern for MV and AV in 3D view which developed by ADINA-FSI application. All the parameter of blood obtained from the previous studies. Both of valve models have ...
... Mitral Valve and Aortic Valve will cause death if it not immediately detected. The aims of this study are to investigate the blood flow pattern for MV and AV in 3D view which developed by ADINA-FSI application. All the parameter of blood obtained from the previous studies. Both of valve models have ...
Flow Imaging: Cardiac Applications of 3D Cine Phase
... cardiac chambers. This cannot be assessed by the diagnostic tools currently in use, as these are often limited to the measurement of peak velocity across a valve stenosis or the measurement of cardiac output. Given the lack of appropriate tools for the assessment of time-varying three-dimensional fl ...
... cardiac chambers. This cannot be assessed by the diagnostic tools currently in use, as these are often limited to the measurement of peak velocity across a valve stenosis or the measurement of cardiac output. Given the lack of appropriate tools for the assessment of time-varying three-dimensional fl ...
Heart WaLL, cHambers, and VaLVes
... When the volume of blood returned to the ventricles is increased (as when exercise stimulates skeletal muscles to contract and force more blood back to the heart), the muscle bundles are stretched beyond their normal resting state to accommodate. The force of this switch is the preload. According to ...
... When the volume of blood returned to the ventricles is increased (as when exercise stimulates skeletal muscles to contract and force more blood back to the heart), the muscle bundles are stretched beyond their normal resting state to accommodate. The force of this switch is the preload. According to ...
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.