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echocardiography
echocardiography

... which is grossly inaccurate. The echocardiograph simply introduces the measured values into the formula to calculate ventricular volumes. Historically, the cube method was also used. Left ventricular volumes may also be calculated based on measurements that are acquired from B-mode images. For that ...
Sudden Cardiac Death - Heart Rhythm Society
Sudden Cardiac Death - Heart Rhythm Society

... event. Most victims do have heart diseases or other health problems, although they may not know it. There are numerous contributors to cardiac arrest, but two of the most important ones are: Coronary artery disease. This is a condition in which the arteries that supply blood to the heart are narrowe ...
Primary cardiac sarcoma: reports of two cases and a review of
Primary cardiac sarcoma: reports of two cases and a review of

... time of presentation [4]. The mean age of presentation is around 40 years [6] with no sex predilection. Rarely it can present in infancy and childhood [7]. Patients present after variable periods of symptoms which are often non-specific, ranging from few weeks to several months and almost all are sy ...
How the Test is Performed
How the Test is Performed

... TIAs, stroke, peripheral neuropathies or hypoglycaemic episodes, for example? ...
Print this article - Paediatrics Today
Print this article - Paediatrics Today

... Histological studies of conduction tissue in patients with l-TGA have shown that atrioventricular and arterioventricular discordance entails the malarrangement of the (atrioventricular) AV node, which is positioned in the right atrium anteriorly, near the junction of the pulmonary and mitral valves ...
Heart Blocks - Karina Vercic
Heart Blocks - Karina Vercic

... • Occurs when the ventricular rate differs from the atrial rate • Single area in atrium other than SA node starts impulse • AV node “gatekeeper” only allows some impulses through to ventricles (lots of P waves, regular QRS) • Atrial flutter is the precursor to atrial fibrillation ...
Proceedings of the British Cardiac Society - Heart
Proceedings of the British Cardiac Society - Heart

... offered £200, and a final decision about the total for value and correlated well with angiography where this each would be made after I5 May when it should be was performed. Serial studies in 7 patients with endocarditis showed known what support had been obtained from other sources, and whether any ...
MCQ CVS
MCQ CVS

... c) it ejects a greater cardiac output . d) it ejects blood against a higher pressure e) it contracts at a higher rate . ...
Inherited Cardiac Arrhythmias
Inherited Cardiac Arrhythmias

... Background: The incidence of sudden cardiac death in persons under age 40 is roughly 3 per 100 000 persons per year in Germany and North America. Many of these deaths are found to be due to hereditary heart diseases, often a primary structural heart disease associated with arrhythmia or else a prima ...
Large Right Ventricular Thrombus
Large Right Ventricular Thrombus

... Multiple sclerosis is an inflammatory demyelinating disorder of the central nervous system. Its presentation is variable and its course and prognosis are unpredictable. Approximately 85% of individuals present a relapsing-remitting form of the disease, but some patients may evolve into a progressive ...
Leonardo Macias, MD Presbyterian Heart Group October.2015
Leonardo Macias, MD Presbyterian Heart Group October.2015

... Yancy CW, et.al. , 2016 ACC/AHA/HFSA Focused Update on New Pharmacological Therapy for Heart Failure: An Update of the 2013 ACCF/AHA Guideline for the Management of Heart Failure, Journal of the American College of Cardiology (2016), ...
Congenital Complete Atrioventricular Block
Congenital Complete Atrioventricular Block

... are highly suggestive of an associated intracardiac left-to-right shunt, specifically a ventricular or atrial septal defect, without being completely diagnostic of such. Right heart catheterization and long-term follow-up studies have failed to substantiate the clinical diagnosis of a septal defect ...
Communication Associated with
Communication Associated with

... maintained in an atmosphere of humidified oxygen. Tachypnea without objective evidence of congestive heart failure persisted. Cardiac catheterization was performed at 5 days of age. The catheter passed from the right ventricle through a ventricular septal defect into the aorta. The pulmonary artery ...
Heart Dynamics
Heart Dynamics

... valves closed but does not create enough pressure to open semilunar valves. ...
Modeling of Blood Flow Velocity into the Main Artery via Left
Modeling of Blood Flow Velocity into the Main Artery via Left

... changes in flow velocity may prove critical for analysis of patients with heart failure. These investigations are also keys to understanding the ventricular function. We have defined an approach for creating a three dimensional model of left ventricle blood flow over time. We have shown that in the ...
Left Ventricular Noncompaction
Left Ventricular Noncompaction

... (LV) trabeculae, a thin compacted layer, and deep intertrabecular recesses. Individual variability is extreme, and trabeculae represent a sort of individual “cardioprinting.” By itself, the diagnosis of LVNC does not coincide with that of a “cardiomyopathy” because it can be observed in healthy subj ...
Cardiac Complications of Hyperthyroidism
Cardiac Complications of Hyperthyroidism

... clinically euthyroid patients of 60 years or older was associated with a threefold higher risk of developing atrial fibrillation8. In our study, a considerable number of hyperthyroid patients showed different types of cardiac pathology, which is about 68%. However, there is no clear evidence that sc ...
Third-Degree Heart Block in Thalassemia major: A Case Report
Third-Degree Heart Block in Thalassemia major: A Case Report

... degree heart block after 10 years of age in one third of thalassemic patients. Generally, once heart failure occurs the survival time is less than three months if left untreated [5]. Currently, cardiomyopathy is the leading cause of morbidity and mortality in 63.6% to 71% of patients [1]. Similar to ...
Third-Degree Heart Block in Thalassemia major: A Case Report
Third-Degree Heart Block in Thalassemia major: A Case Report

... degree heart block after 10 years of age in one third of thalassemic patients. Generally, once heart failure occurs the survival time is less than three months if left untreated [5]. Currently, cardiomyopathy is the leading cause of morbidity and mortality in 63.6% to 71% of patients [1]. Similar to ...
Mitral Valve - COR Medical Group
Mitral Valve - COR Medical Group

... are at increased risk of endocarditis. ...
Comparison of Left Ventricular Contractility in Pressure and Volume
Comparison of Left Ventricular Contractility in Pressure and Volume

... longitudinal contractility of the left ventricle is affected adversely. To our knowledge, this is the first study comparing two different loading condition to each other in terms of subtle LV dysfunction. As a result, we found no difference between pressure and volume overload regarding longitudinal ...
PDF - Columbia University Department of Surgery
PDF - Columbia University Department of Surgery

... primary reasons: it is extremely low risk, and patients feel better after the procedure.” Hybrid therapy Hybrid therapy combines minimally invasive surgical techniques and catheter-based technology. One such option that will soon be available at NYP/Columbia is the NeoChord operation, a minimally in ...
Tako Tsubo Cardiomyopatie
Tako Tsubo Cardiomyopatie

...  Transient (reversible) akinesia or dyskinesia of the left ventricular mid segments, eventually also with involvement of the apex, independently of vascular distribution  Absence of obstructive coronary artery disease at coronary ...
Doppler-Derived Myocardial Performance Index in Healthy Children
Doppler-Derived Myocardial Performance Index in Healthy Children

... ardiac function depends on the contraction of the sarcomeres, organization and configuration of the ventricular chambers, valvular functions and loading conditions. Thus cardiac function can be evaluated at several levels of integration such as myocardial function, chambers pumping performance and i ...
Unit 4 Antidysrhythmic and Antihypertensive Agents
Unit 4 Antidysrhythmic and Antihypertensive Agents

... release, inhibits platelet aggregation, coronary vasodilation, suppresses heart rate ...
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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.
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