Myocardial Deformation Imaging of the Systemic Right Ventricle by
... after repair, >60% of patients show moderate-to-severe RV dysfunction after 25 years when studied by echocardiography.8 Thus, the anatomic RV appears to be unable to sustain the systemic circulation in the long term and the clinical condition of patients late after Mustard repair is declining. At pr ...
... after repair, >60% of patients show moderate-to-severe RV dysfunction after 25 years when studied by echocardiography.8 Thus, the anatomic RV appears to be unable to sustain the systemic circulation in the long term and the clinical condition of patients late after Mustard repair is declining. At pr ...
Factors Influencing the Rate of Flow Through Continuous
... tensity of muscle contraction (22). That is the likely explanation for why blood pressure was elevated by nearly 10 mm Hg when toe raises were performed at 80 compared with 30 , which may well have influenced the flow outcomes. Although these results do shed some light on the mechanism by which exe ...
... tensity of muscle contraction (22). That is the likely explanation for why blood pressure was elevated by nearly 10 mm Hg when toe raises were performed at 80 compared with 30 , which may well have influenced the flow outcomes. Although these results do shed some light on the mechanism by which exe ...
electrical conduction system of the heart
... sodium, potassium and calcium channels, is the drive that causes contraction of the cardiac cells/muscle ▪ 6. Depolarization with corresponding contraction of myocardial muscle moves as a wave through the heart ▪ 7. Repolarization is the return of the ions to their previous resting state, which corr ...
... sodium, potassium and calcium channels, is the drive that causes contraction of the cardiac cells/muscle ▪ 6. Depolarization with corresponding contraction of myocardial muscle moves as a wave through the heart ▪ 7. Repolarization is the return of the ions to their previous resting state, which corr ...
Etiologic Classification of Degenerative Mitral Valve Disease
... of atrial fibrillation, or the development of symptoms including palpitations, fatigue, dyspnea, and presyncope. Ventricular arrhythmias, syncope, angina, endocarditis, and cerebrovascular accidents are less common presentations. Patients with longstanding disease and left ventricular dysfunction ma ...
... of atrial fibrillation, or the development of symptoms including palpitations, fatigue, dyspnea, and presyncope. Ventricular arrhythmias, syncope, angina, endocarditis, and cerebrovascular accidents are less common presentations. Patients with longstanding disease and left ventricular dysfunction ma ...
News
... may have created new unresolved issues, leading to possible confusion. This confusion includes several ...
... may have created new unresolved issues, leading to possible confusion. This confusion includes several ...
NHRD - Guide for Commissioners version 2.indd
... hear tbeat and is thus sometimes called ‘physiological’ or ‘atrial-based’ pacing. In appropriately chosen patients it may improve quality of life, eliminate pacemaker syndrome and reduce the chances of developing Atrial Fibrillation. • Rate adaptive (responsive): The pacemaker incorporates a sensor ...
... hear tbeat and is thus sometimes called ‘physiological’ or ‘atrial-based’ pacing. In appropriately chosen patients it may improve quality of life, eliminate pacemaker syndrome and reduce the chances of developing Atrial Fibrillation. • Rate adaptive (responsive): The pacemaker incorporates a sensor ...
Hypertension, Systolic Blood Pressure, and Large Arteries
... aorta as a wave (Fig. 1). It is possible to calculate the velocity of this wave (ie, pulse wave velocity, PWV) from the interval between two BP curves located at two different sites in the arterial tree, particularly the aorta. Because a fundamental principle is that pulse waves travel faster in sti ...
... aorta as a wave (Fig. 1). It is possible to calculate the velocity of this wave (ie, pulse wave velocity, PWV) from the interval between two BP curves located at two different sites in the arterial tree, particularly the aorta. Because a fundamental principle is that pulse waves travel faster in sti ...
Circulation Research AUGUST
... utilization has been recognized by many investigators, and studies over the past few years have supported this view (5-9). It has also been appreciated that the increase in MVoo associated with muscular exercise or administration of catecholamines is often disproportionate to the changes in myocardi ...
... utilization has been recognized by many investigators, and studies over the past few years have supported this view (5-9). It has also been appreciated that the increase in MVoo associated with muscular exercise or administration of catecholamines is often disproportionate to the changes in myocardi ...
Morphological aspects of atrioventricular valves in the ostrich
... cusps: left, dorsal, and right (BEZUIDENHOUT, 1999). We found three cusps in the LAV of the ostrich heart, left, dorsal, and right. The right cusp is the largest and it is attached to the interventricular septum. Each cusp of the LAV receives chordae tendineae from two papillary muscles, as previous ...
... cusps: left, dorsal, and right (BEZUIDENHOUT, 1999). We found three cusps in the LAV of the ostrich heart, left, dorsal, and right. The right cusp is the largest and it is attached to the interventricular septum. Each cusp of the LAV receives chordae tendineae from two papillary muscles, as previous ...
A congenital cardiovascular malformation in which there is an
... A congenital cardiac malformation that is a variant of an atrioventricular septal defect (atrioventricular canal defect) with an interatrial communication just above the atrioventricular valve, no interventricular communication just below the atrioventricular valve, separate right and left atriovent ...
... A congenital cardiac malformation that is a variant of an atrioventricular septal defect (atrioventricular canal defect) with an interatrial communication just above the atrioventricular valve, no interventricular communication just below the atrioventricular valve, separate right and left atriovent ...
Implantable Cardioverter Defibrillator
... arrhythmias to reduce the risk of sudden death. A subcutaneous ICD (S-ICD) has been developed that does not employ transvenous leads, with the goal of reducing lead-related complications. Summary of Evidence For individuals who have a high risk of sudden cardiac death (SCD) due to ischemic or to non ...
... arrhythmias to reduce the risk of sudden death. A subcutaneous ICD (S-ICD) has been developed that does not employ transvenous leads, with the goal of reducing lead-related complications. Summary of Evidence For individuals who have a high risk of sudden cardiac death (SCD) due to ischemic or to non ...
Cardiac Rehabilitation Jan-09-07
... 2005 meta-analysis of 11 trials of 2285 patients with coronary disease (most but not all post-MI) who were randomly assigned to exercise rehabilitation alone or control therapy. Exercise was associated with a significant reduction in allcause mortality (6.2 versus 9.0 percent, summary risk ...
... 2005 meta-analysis of 11 trials of 2285 patients with coronary disease (most but not all post-MI) who were randomly assigned to exercise rehabilitation alone or control therapy. Exercise was associated with a significant reduction in allcause mortality (6.2 versus 9.0 percent, summary risk ...
Activity and Exercise Patterns
... The right atrium receives deoxygenated blood from the veins of the body: The superior vena cava returns blood from the body area above the diaphragm, the inferior vena cava returns blood from the body below the diaphragm, and the coronary sinus drains blood from the heart. The left atrium receives f ...
... The right atrium receives deoxygenated blood from the veins of the body: The superior vena cava returns blood from the body area above the diaphragm, the inferior vena cava returns blood from the body below the diaphragm, and the coronary sinus drains blood from the heart. The left atrium receives f ...
Adrenal Insufficiency - Circulation Research
... infused. Krebs-Henseleit solution was rapidly infused at a rate of 50 ml/min until the aortic flow reached a constant peak value despite further increases in left atrial pressure (i.e., until a plateau in the ventricular output was reached). The plateau was usually attained after infusion of 50 to 7 ...
... infused. Krebs-Henseleit solution was rapidly infused at a rate of 50 ml/min until the aortic flow reached a constant peak value despite further increases in left atrial pressure (i.e., until a plateau in the ventricular output was reached). The plateau was usually attained after infusion of 50 to 7 ...
Head-to-head comparison of the diagnostic utility of BNP and NT
... < 56 mm, without left ventricular hypertrophy or without wall motion abnormities, a right ventricular systolic pressure (RVSP) < 35 mm Hg and a left ventricular ejection fraction (LVEF) >60%. Isolated diastolic dysfunction as measured by echocardiography was not defined in this study because early d ...
... < 56 mm, without left ventricular hypertrophy or without wall motion abnormities, a right ventricular systolic pressure (RVSP) < 35 mm Hg and a left ventricular ejection fraction (LVEF) >60%. Isolated diastolic dysfunction as measured by echocardiography was not defined in this study because early d ...
Reverse takotsubo cardiomyopathy with use of
... presence of coronary artery disease (1, 2). In contrast, reverse takotsubo cardiomyopathy is a condition with transient systolic dysfunction of the basal segments of the left ventricle. Although transient, reverse, or inverted takotsubo cardiomyopathy was recognized as a different clinical entity >2 ...
... presence of coronary artery disease (1, 2). In contrast, reverse takotsubo cardiomyopathy is a condition with transient systolic dysfunction of the basal segments of the left ventricle. Although transient, reverse, or inverted takotsubo cardiomyopathy was recognized as a different clinical entity >2 ...
Coagulation activity is increased in the left atrium of patients
... moderate tricuspid regurgitation. Mitral valve area calculated by the Gorlin formula (26) was 0.81 + 0.07 cm2 (mean _+ SE) before valvuloplasty. Blood sampling. Samples of the peripheral venous blood were obtained for measurement of molecular markers at 9 AM before percutaneous mitral valvuloplasty ...
... moderate tricuspid regurgitation. Mitral valve area calculated by the Gorlin formula (26) was 0.81 + 0.07 cm2 (mean _+ SE) before valvuloplasty. Blood sampling. Samples of the peripheral venous blood were obtained for measurement of molecular markers at 9 AM before percutaneous mitral valvuloplasty ...
Percutaneous Mitral Valve Interventions
... probability of success. There must be enough coaptation length for the clip to be grasped. A flail gap larger than 10 mm makes success of adequate reduction in MR unlikely, as does a flail width of more than 15 mm. The need for some coaptation length effectively excludes patients with an extremely d ...
... probability of success. There must be enough coaptation length for the clip to be grasped. A flail gap larger than 10 mm makes success of adequate reduction in MR unlikely, as does a flail width of more than 15 mm. The need for some coaptation length effectively excludes patients with an extremely d ...
V3ch02a2 - SchultzMedic
... Single electrical impulse originating outside the SA node May result from use of caffeine, tobacco, or alcohol, sympathomimetic drugs, ischemic heart disease, hypoxia, or digitalis toxicity, or may be idiopathic ...
... Single electrical impulse originating outside the SA node May result from use of caffeine, tobacco, or alcohol, sympathomimetic drugs, ischemic heart disease, hypoxia, or digitalis toxicity, or may be idiopathic ...
PDF - Cardiovascular Ultrasound
... significantly in late pregnancy. This is similar to the previous studies, which had demonstrated that the global myocardial deformation in three dimensions, longitudinal, circumferential as well as radial strain, reduced markedly in the third trimester [2, 3]. Those reports considered multilayered s ...
... significantly in late pregnancy. This is similar to the previous studies, which had demonstrated that the global myocardial deformation in three dimensions, longitudinal, circumferential as well as radial strain, reduced markedly in the third trimester [2, 3]. Those reports considered multilayered s ...
Drug-induced heart failure
... received doses of only 45 mg/m2 (15). Therefore, all patients exposed to anthracyclines should be considered at risk for the development of heart failure as a result of the cardiotoxic properties of these agents. To evaluate cardiotoxicity, guidelines for monitoring cardiac function have been implem ...
... received doses of only 45 mg/m2 (15). Therefore, all patients exposed to anthracyclines should be considered at risk for the development of heart failure as a result of the cardiotoxic properties of these agents. To evaluate cardiotoxicity, guidelines for monitoring cardiac function have been implem ...
Evidence for left ventricular dysfunction in patients with
... Evidence for left ventricular dysfunction in patients with obstructive sleep apnoea syndrome. M. Alchanatis, G. Tourkohoriti, E.N. Kosmas, G. Panoutsopoulos, S. Kakouros, K. Papadima, M. Gaga, J.B. Jordanoglou. #ERS Journals Ltd 2002. ABSTRACT: There is limited information on the development of left ...
... Evidence for left ventricular dysfunction in patients with obstructive sleep apnoea syndrome. M. Alchanatis, G. Tourkohoriti, E.N. Kosmas, G. Panoutsopoulos, S. Kakouros, K. Papadima, M. Gaga, J.B. Jordanoglou. #ERS Journals Ltd 2002. ABSTRACT: There is limited information on the development of left ...
Ischemic Mitral Valve Disease: Repair, Replace or Ignore?
... survival at 12 months between pts who underwent mitralvalve repair and those who underwent mitral-valve replacement ...
... survival at 12 months between pts who underwent mitralvalve repair and those who underwent mitral-valve replacement ...
![Early Repolarization Syndrome[1]](http://s1.studyres.com/store/data/006078177_1-344159971b6536c9b1cdc8953ff43057-300x300.png)
Early Repolarization Syndrome[1]
... ERS. These findings provide justification for the long-standing use of the nomenclature and question the need for narrow or overly restrictive definitions of ERP.27-29 Whether reduced by Ito blockers, such as 4-aminopyridine or quinidine, increased heart rates or premature activation or augmented by ...
... ERS. These findings provide justification for the long-standing use of the nomenclature and question the need for narrow or overly restrictive definitions of ERP.27-29 Whether reduced by Ito blockers, such as 4-aminopyridine or quinidine, increased heart rates or premature activation or augmented by ...
impedance cardiography with acm technology
... · determine cause of high blood pressure in order to target, optimise, and validate medications · define most effective antihypertensive drug combination (Beta-blocker, ACE inhibitor, Diuretic and others) · balance systemic vascular resistance, cardiac output and fluid level (TFC) · measure aortic p ...
... · determine cause of high blood pressure in order to target, optimise, and validate medications · define most effective antihypertensive drug combination (Beta-blocker, ACE inhibitor, Diuretic and others) · balance systemic vascular resistance, cardiac output and fluid level (TFC) · measure aortic p ...
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.