Articles in PresS. Am J Physiol Heart Circ Physiol (February 3, 2012
... contractility and diastolic stiffness. Increasingly anisotropic conduction velocity due to fibrosis ...
... contractility and diastolic stiffness. Increasingly anisotropic conduction velocity due to fibrosis ...
Paced right bundle branch block: where is the catheter
... diaphragmatic stimulation. The differential diagnosis of RBBB morphology of the ...
... diaphragmatic stimulation. The differential diagnosis of RBBB morphology of the ...
Importance of Atrial Compliance in Cardiac Performance
... The ventricle was represented by a time-varying elasticity (E[t] ) (the instantaneous pressure-volume ratio) in accordance with previous experimental findings on the ventricular pressure-volume relationship (3-5); a ventricular model of this type has conventionally been used by others (6-9). The tim ...
... The ventricle was represented by a time-varying elasticity (E[t] ) (the instantaneous pressure-volume ratio) in accordance with previous experimental findings on the ventricular pressure-volume relationship (3-5); a ventricular model of this type has conventionally been used by others (6-9). The tim ...
Heart Failure
... population in Georgia, CAD, hypertension, diabetes, and valvular heart disease most frequently preceded the diagnosis of HF (16). The clinical–hemodynamic profile of patients with HF appears to be changing (10). In a registry of >110,000 patients hospitalized with HF, the proportion with heart failur ...
... population in Georgia, CAD, hypertension, diabetes, and valvular heart disease most frequently preceded the diagnosis of HF (16). The clinical–hemodynamic profile of patients with HF appears to be changing (10). In a registry of >110,000 patients hospitalized with HF, the proportion with heart failur ...
Is redo percutaneous mitral balloon valvuloplasty (PMV) indicated in
... PMV has a palliative role if the patients are not surgical candidates. (J Am Coll Cardiol 1999; 34:49 –54) © 1999 by the American College of Cardiology ...
... PMV has a palliative role if the patients are not surgical candidates. (J Am Coll Cardiol 1999; 34:49 –54) © 1999 by the American College of Cardiology ...
Similarities and differences between ECG signs of left bundle
... Because it is crucial for this study that the effect of tissue conductivity on action potential propagation and on volume conduction is accurately represented, we used a reaction-diffusion model of the human ventricles coupled to a detailed human torso model. This combination of models has been used ...
... Because it is crucial for this study that the effect of tissue conductivity on action potential propagation and on volume conduction is accurately represented, we used a reaction-diffusion model of the human ventricles coupled to a detailed human torso model. This combination of models has been used ...
Tetralogy of Fallot: from fetus to adult
... anatomical abnormalities: ventricular septal defect, overriding of the aorta, right ventricular outflow obstruction and right ventricular hypertrophy. Its prevalence ranges from 2,8 to 3,9 per 10.000 live births and accounts for 3,5% to 10% of all congenital heart diseases. In circa 40% of the patie ...
... anatomical abnormalities: ventricular septal defect, overriding of the aorta, right ventricular outflow obstruction and right ventricular hypertrophy. Its prevalence ranges from 2,8 to 3,9 per 10.000 live births and accounts for 3,5% to 10% of all congenital heart diseases. In circa 40% of the patie ...
Investigation of syncope
... 3. Laboratory testing: there is some disagreement on the value of further blood tests in patients with a nonsuggestive history and a normal examination. A full blood count looking for anaemia or evidence of blood loss is the most commonly suggested test. Some authors suggest that measurement of seru ...
... 3. Laboratory testing: there is some disagreement on the value of further blood tests in patients with a nonsuggestive history and a normal examination. A full blood count looking for anaemia or evidence of blood loss is the most commonly suggested test. Some authors suggest that measurement of seru ...
Aorta to Left Atrial Fistula Following Transcatheter Closure of Atrial
... aortic or mitral valve injury (n = 2) and endocarditis (n = 1) 23. Of these complications, the most worrisome were cardiac erosion or perforation, both of which may culminate in circulatory collapse. Fistula formation has different causes which one of the usual causes is deficient retroaortic rim. A ...
... aortic or mitral valve injury (n = 2) and endocarditis (n = 1) 23. Of these complications, the most worrisome were cardiac erosion or perforation, both of which may culminate in circulatory collapse. Fistula formation has different causes which one of the usual causes is deficient retroaortic rim. A ...
Balloon aortic valvuloplasty: review of the evidence and current
... Surgical aortic valve replacement In severe symptomatic AS, surgical AVR provides symptom relief, regression of LV hypertrophy, improved LV function and ultimately a survival benefit [15] . AVR is recommended in all symptomatic AS patients, yet many do not undergo surgery for various reasons [16,17] ...
... Surgical aortic valve replacement In severe symptomatic AS, surgical AVR provides symptom relief, regression of LV hypertrophy, improved LV function and ultimately a survival benefit [15] . AVR is recommended in all symptomatic AS patients, yet many do not undergo surgery for various reasons [16,17] ...
Clinical and echocardiogram profile of Cardiomyopathy at tertiary
... Background: Cardiomyopathies represent a heterogeneous group of diseases that often lead to progressive heart failure with significant morbidity and mortality. The improved recognition or of other factor, the incidence and prevalence of heart failure due to cardiomyopathy appears to be increasing. A ...
... Background: Cardiomyopathies represent a heterogeneous group of diseases that often lead to progressive heart failure with significant morbidity and mortality. The improved recognition or of other factor, the incidence and prevalence of heart failure due to cardiomyopathy appears to be increasing. A ...
Closing the Pore on Reperfusion InjuryMyocardial
... gov, of which only the minority are related to the prevention of myocardial injury, suggesting that this drug affects multiple different pathways. The effect of cyclosporine on the mPTP is not selective, as it also inhibits phosphatase calcineurin activity, which in turn may limit the degree of prot ...
... gov, of which only the minority are related to the prevention of myocardial injury, suggesting that this drug affects multiple different pathways. The effect of cyclosporine on the mPTP is not selective, as it also inhibits phosphatase calcineurin activity, which in turn may limit the degree of prot ...
Anomalous Pulmonary Vein Serving as Collateral Channel in Aortic
... the primary connections for drainage extend into two major venous systems, the umbilico-vitelline system (from which the portal venous system is developed) and the cardinal system of veins (from which the systemic veins are developed). Only after secondary development between a protrusion from the h ...
... the primary connections for drainage extend into two major venous systems, the umbilico-vitelline system (from which the portal venous system is developed) and the cardinal system of veins (from which the systemic veins are developed). Only after secondary development between a protrusion from the h ...
AHA/ACCF/ESC Scientific Statement
... Deckers et al20 prospectively recorded complications from 546 consecutive right heart biopsy procedures in patients with new-onset unexplained cardiomyopathy. These are the most reliable data in the literature20; the complication rates of sheath insertion and biopsy procedure were reported as 2.7% a ...
... Deckers et al20 prospectively recorded complications from 546 consecutive right heart biopsy procedures in patients with new-onset unexplained cardiomyopathy. These are the most reliable data in the literature20; the complication rates of sheath insertion and biopsy procedure were reported as 2.7% a ...
Reversible Cardiac Failure During Angina Pectoris
... generally absent by 2 min, but in the occasional patient pain subsided slowly over a 5 to 6-min period. For purposes of analysis, three groups will be considered: (a) angina group-21 patients with coronary artery disease who developed pain with pacing, (b) non-angina group-nine patients with coronar ...
... generally absent by 2 min, but in the occasional patient pain subsided slowly over a 5 to 6-min period. For purposes of analysis, three groups will be considered: (a) angina group-21 patients with coronary artery disease who developed pain with pacing, (b) non-angina group-nine patients with coronar ...
cardiology - Turner White
... pressure when the pericardial content and cardiac volumes are at normal, physiologic levels (ie, pericardial reserve volume). According to the concept of the pericardial continuum,4 steady increases in pericardial content cause pericardial pressure to increase once the relatively small pericardial v ...
... pressure when the pericardial content and cardiac volumes are at normal, physiologic levels (ie, pericardial reserve volume). According to the concept of the pericardial continuum,4 steady increases in pericardial content cause pericardial pressure to increase once the relatively small pericardial v ...
Fiber-Optic Stethoscope: A Cardiac Monitoring and Gating System
... electrical measurement, will always suffer from electromagnetic interference. The subject’s body alone acts as a conductive medium though which magnetic flux lines pass and induce an EMF. Alternative measures of cardiac activity could be used, including peripheral blood pressure and blood perfusion ...
... electrical measurement, will always suffer from electromagnetic interference. The subject’s body alone acts as a conductive medium though which magnetic flux lines pass and induce an EMF. Alternative measures of cardiac activity could be used, including peripheral blood pressure and blood perfusion ...
Fetal cardiac abnormalities identified prior to 14 weeks` gestation
... crown–rump length 40.0–85.0 mm (median, 60.3 mm) with increased nuchal translucency, suspected abnormalities on routine scan or a family history of heart defect. The findings were related to results of autopsy, karyotyping, later scans and postnatal follow-up. Results Satisfactory images were obtain ...
... crown–rump length 40.0–85.0 mm (median, 60.3 mm) with increased nuchal translucency, suspected abnormalities on routine scan or a family history of heart defect. The findings were related to results of autopsy, karyotyping, later scans and postnatal follow-up. Results Satisfactory images were obtain ...
Ventricular tachycardia mapping and ablation in arrhythmogenic
... challenging to perform catheter manipulation in the periannular tricuspid valve region. It is imperative to ensure adequate catheter contact during mapping to confirm low-voltage areas are from abnormal substrate and not inadequate catheter-tissue contact. This process can be facilitated by (1) usi ...
... challenging to perform catheter manipulation in the periannular tricuspid valve region. It is imperative to ensure adequate catheter contact during mapping to confirm low-voltage areas are from abnormal substrate and not inadequate catheter-tissue contact. This process can be facilitated by (1) usi ...
Therapeutic Hypothermia Research Paper
... decreasing afterload, insertion of assistive devices to decrease workload, inotropes for contractility, and surgical repair as soon as possible (Reed, 2013). All of these complications, if not treated especially, can lead to cardiac arrest. These complications can happen immediately or days after a ...
... decreasing afterload, insertion of assistive devices to decrease workload, inotropes for contractility, and surgical repair as soon as possible (Reed, 2013). All of these complications, if not treated especially, can lead to cardiac arrest. These complications can happen immediately or days after a ...
morphometric and biochemical characteristics of ventricular
... hexokinase (by 50 %) in both layers, and (3) no change in increased proportion of epicardium relative to lactate dehydrogenase or pyruvate kinase activities, which endocardium. Ventricular enlargement was associated were also similar between layers. These results suggest that with increased length ( ...
... hexokinase (by 50 %) in both layers, and (3) no change in increased proportion of epicardium relative to lactate dehydrogenase or pyruvate kinase activities, which endocardium. Ventricular enlargement was associated were also similar between layers. These results suggest that with increased length ( ...
Syncope and The Older Patient
... QTc over 500 Lack of QT shortening with increased heart rate (role of standing or exertional EKG) Genetic or secondary to medications… Torsades ...
... QTc over 500 Lack of QT shortening with increased heart rate (role of standing or exertional EKG) Genetic or secondary to medications… Torsades ...
Systolic and Diastolic Heart Failure
... Low stroke volume Reduced cardiac output despite a normal ejection fraction Limited exercise tolerance as a result of elevated left ventricular diastolic and pulmonary venous pressure reduction in lung compliance increase in the work of breathing ...
... Low stroke volume Reduced cardiac output despite a normal ejection fraction Limited exercise tolerance as a result of elevated left ventricular diastolic and pulmonary venous pressure reduction in lung compliance increase in the work of breathing ...
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.