How to differentiate athlete`s heart from pathological
... such as chronic pressure overload (e.g. systemic hypertension, aortic stenosis), volume overload (e.g. aortic regurgitation), or myocardial disease (e.g. hypertrophic cardiomyopathy). Distinction between physiological and pathological hypertrophy might have major implications, since undiagnosed hype ...
... such as chronic pressure overload (e.g. systemic hypertension, aortic stenosis), volume overload (e.g. aortic regurgitation), or myocardial disease (e.g. hypertrophic cardiomyopathy). Distinction between physiological and pathological hypertrophy might have major implications, since undiagnosed hype ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... There is global burden of cardiovascular disease with changing lifestyle & stress. Among the myriad of options available like anti-ischaemic therapy and risk factor reduction, revascularization plays a vital role in Isheaemic heart disease. Although revascularization procedures by percutaneous inter ...
... There is global burden of cardiovascular disease with changing lifestyle & stress. Among the myriad of options available like anti-ischaemic therapy and risk factor reduction, revascularization plays a vital role in Isheaemic heart disease. Although revascularization procedures by percutaneous inter ...
Structural Heart Intervention and Imaging 2015: A
... Describe the basic catheter approach to a range of structural heart disease interventions, including but not limited to PFO closure, ASD closure, TAVR, trans-septal puncture, transcatheter mitral valve repair, and left atrial appendage occlusion and ligation, and their associated imaging guidance. A ...
... Describe the basic catheter approach to a range of structural heart disease interventions, including but not limited to PFO closure, ASD closure, TAVR, trans-septal puncture, transcatheter mitral valve repair, and left atrial appendage occlusion and ligation, and their associated imaging guidance. A ...
Rheumatic Fever and Heart Disease
... Nonbacterial Thrombotic Endocarditis • Gross:groups of small nodules on the lines of valve closure (similar to those of acute rheumatic fever), valve leaflets are normal. • Aortic valve most common site. • Micro: fibrin and platelets aggregates, no inflammation or fibrosis. • Clinically asymptomati ...
... Nonbacterial Thrombotic Endocarditis • Gross:groups of small nodules on the lines of valve closure (similar to those of acute rheumatic fever), valve leaflets are normal. • Aortic valve most common site. • Micro: fibrin and platelets aggregates, no inflammation or fibrosis. • Clinically asymptomati ...
a fixed-rate rechargeable cardiac pacemaker
... success to date has been achieved with hermetically sealed, nickel-cadmium cells. The perf9rmance of rechargeable batteries in orbiting satellites designed by APL provided an indication that it was possible to achieve the high reliability required for a pacemaker. Since June 1963, 18 satellites desi ...
... success to date has been achieved with hermetically sealed, nickel-cadmium cells. The perf9rmance of rechargeable batteries in orbiting satellites designed by APL provided an indication that it was possible to achieve the high reliability required for a pacemaker. Since June 1963, 18 satellites desi ...
The Valvular Involvement of Lupus: Congestive Heart Failure Can
... was seen during surgery. The microscopic examination of the excised mitral valve showed degenerated mitral valve with chronic inflammatory cell infiltration and fibrin deposition on the surface of the valve which was consistent with disrupted vegetation. However, several studies have suggested that ...
... was seen during surgery. The microscopic examination of the excised mitral valve showed degenerated mitral valve with chronic inflammatory cell infiltration and fibrin deposition on the surface of the valve which was consistent with disrupted vegetation. However, several studies have suggested that ...
hypertrophic cardiomyopathy - American Heart Association
... Once suspected, the diagnosis of hypertrophic cardiomyopathy is established with an echocardiogram (or ultrasound of the heart) looking for abnormally thick walls predominantly in the left pumping chamber (left ventricle). In addition, the extent of obstruction or muscular narrowing through the outl ...
... Once suspected, the diagnosis of hypertrophic cardiomyopathy is established with an echocardiogram (or ultrasound of the heart) looking for abnormally thick walls predominantly in the left pumping chamber (left ventricle). In addition, the extent of obstruction or muscular narrowing through the outl ...
AHA Scientific Statement
... rates of CHD patients. Meta-analyses based on studies performed in the 1970s and 1980s and reviewed in the 1994 AHA scientific statement on cardiac rehabilitation programs1 and the Agency for Health Care Policy and Research guidelines5 revealed a statistically significant reduction in both cardiac a ...
... rates of CHD patients. Meta-analyses based on studies performed in the 1970s and 1980s and reviewed in the 1994 AHA scientific statement on cardiac rehabilitation programs1 and the Agency for Health Care Policy and Research guidelines5 revealed a statistically significant reduction in both cardiac a ...
Reservoir and Conduit Function of the Right Atrium - AJP
... closed), inotropic stimulation (calcium chloride bolus), partial PA occlusion, and following pericardiotomy. With inotropic stimulation, maximum RVP increased by 38% (P<0.04), RV dP/dt increased by 26% (P>0.05), and there was a tendency for RA dP/dt to rise (P=0.06). With partial PA occlusion, maxim ...
... closed), inotropic stimulation (calcium chloride bolus), partial PA occlusion, and following pericardiotomy. With inotropic stimulation, maximum RVP increased by 38% (P<0.04), RV dP/dt increased by 26% (P>0.05), and there was a tendency for RA dP/dt to rise (P=0.06). With partial PA occlusion, maxim ...
2009 Pediatric Cardiac and PVD Imaging Guidelines
... • Certain payers consider coronary calcium scoring and/or cardiac CT and Computed Tomography Coronary Angiography (CTCA) investigational, and their coverage policies will take precedence over MedSolutions' guidelines. Prior authorization does not guarantee payment of the study. • Most payers require ...
... • Certain payers consider coronary calcium scoring and/or cardiac CT and Computed Tomography Coronary Angiography (CTCA) investigational, and their coverage policies will take precedence over MedSolutions' guidelines. Prior authorization does not guarantee payment of the study. • Most payers require ...
Experimental Auricular Flutter
... conducted and the results were qualitatively consistent. A sufficient quantity of the glycoside always reduced the maximum rate of stimulation the auricle would follow. Figure 2 is representative of these experiments. It can be seen that 0.06 and 0.12 mg. of lanatoside C per Kg., given intravenously ...
... conducted and the results were qualitatively consistent. A sufficient quantity of the glycoside always reduced the maximum rate of stimulation the auricle would follow. Figure 2 is representative of these experiments. It can be seen that 0.06 and 0.12 mg. of lanatoside C per Kg., given intravenously ...
Presentation of Congenital Heart Disease in the Neonate and
... Prenatal ultrasonography may detect CHD before birth, but it is essential for primary care practitioners to assess any newborn who is suspected of having heart disease at the time of birth. This review considers CHDs that present during the newborn period or early infancy. The profound hemodynamic t ...
... Prenatal ultrasonography may detect CHD before birth, but it is essential for primary care practitioners to assess any newborn who is suspected of having heart disease at the time of birth. This review considers CHDs that present during the newborn period or early infancy. The profound hemodynamic t ...
Future Perspectives in the Pharmacological Treatment of Atrial
... management of AF [29]. The use of antiarrhythmic agents for the management of AF in patients with HF is even more limited, since the mortality increasing pro-arrhythmic side effects of these drugs in HF are of particular concern. Similar to other patient populations with AF, the issue as to whether ...
... management of AF [29]. The use of antiarrhythmic agents for the management of AF in patients with HF is even more limited, since the mortality increasing pro-arrhythmic side effects of these drugs in HF are of particular concern. Similar to other patient populations with AF, the issue as to whether ...
Gross anatomy of the heart in Ostrich (Struthio camelus)
... (Figs. 8, 9 and 10). At the left side of the base of the right ventricle there was the funnel shaped region as conus arteriosus leading to the pulmonary trunk (Fig. 6). The pulmonary orifice was circular and was guarded by the pulmonary valve composed of three semicircular cusps. The wall of the tru ...
... (Figs. 8, 9 and 10). At the left side of the base of the right ventricle there was the funnel shaped region as conus arteriosus leading to the pulmonary trunk (Fig. 6). The pulmonary orifice was circular and was guarded by the pulmonary valve composed of three semicircular cusps. The wall of the tru ...
cardiac arrhythmias and left ventricular hypertrophy in systemic
... hypertrophy has been suggested as the underlying risk factors for supraventricular and ventricular arrhythmias in hypertensives. ECG parameters are analysis of P wave, QT interval dispersion, heart rate variability, ventricular late potentials and T wave morphology.3 Concentric LVH, the incidence of ...
... hypertrophy has been suggested as the underlying risk factors for supraventricular and ventricular arrhythmias in hypertensives. ECG parameters are analysis of P wave, QT interval dispersion, heart rate variability, ventricular late potentials and T wave morphology.3 Concentric LVH, the incidence of ...
Non-Invasive Cardiac Stress Testing
... 1. Myers J, Prakash M, Froelicher V, Do D, Partington S, Atwood JE. Exercise capacity and mortality among men referred for exercise testing. N. Engl. J. Med. Mar 14 2002;346(11):793-801. 2. Weiner, D. A., Ryan, T. J., McCabe, C. H., Chaitman, B. R., Sheffield, L. T., Fisher, L. D., et al. (1986). Th ...
... 1. Myers J, Prakash M, Froelicher V, Do D, Partington S, Atwood JE. Exercise capacity and mortality among men referred for exercise testing. N. Engl. J. Med. Mar 14 2002;346(11):793-801. 2. Weiner, D. A., Ryan, T. J., McCabe, C. H., Chaitman, B. R., Sheffield, L. T., Fisher, L. D., et al. (1986). Th ...
The impact of pressure overload on coronary vascular - AJP
... phases (5, 7, 31, 34). MI in human patients is much more complicated than those in small animals because most MI patients have a long history of hypertension and atherosclerosis (1, 16, 29), although it is unclear how hypertension affects ischemic remodeling. The objective of the present study is to ...
... phases (5, 7, 31, 34). MI in human patients is much more complicated than those in small animals because most MI patients have a long history of hypertension and atherosclerosis (1, 16, 29), although it is unclear how hypertension affects ischemic remodeling. The objective of the present study is to ...
Electrocardiographic imaging of cardiac resynchronization therapy
... electrical properties and thus may be limited by electrical dysfunction. Hence, failure to achieve resynchronization could be due, in part, to abnormal local electrical properties, such as slow conduction or conduction block, which are likely to be present in patients with LV disease. Therefore, an ...
... electrical properties and thus may be limited by electrical dysfunction. Hence, failure to achieve resynchronization could be due, in part, to abnormal local electrical properties, such as slow conduction or conduction block, which are likely to be present in patients with LV disease. Therefore, an ...
Assessment of systemic right ventricular function using tissue
... This non-physiological hemodynamic scenario relieves the single functioning ventricle but also contributes to the development of irreversible changes in the cardiovascular system, leading to multiple complications. The rates of Fontan circulation-related complications increase with time and include ...
... This non-physiological hemodynamic scenario relieves the single functioning ventricle but also contributes to the development of irreversible changes in the cardiovascular system, leading to multiple complications. The rates of Fontan circulation-related complications increase with time and include ...
Syncope in patients with structural heart disease
... used drugs amongst patients with heart disease include beta blockers, diuretics and vasodilators. All these drugs could alone or in combination predispose patients to episodes of haemodynamic compromise due to bradycardia and/or hypotension in different clinical situations. Furthermore, the use of a ...
... used drugs amongst patients with heart disease include beta blockers, diuretics and vasodilators. All these drugs could alone or in combination predispose patients to episodes of haemodynamic compromise due to bradycardia and/or hypotension in different clinical situations. Furthermore, the use of a ...
Anatomy Review: The Heart
... • The heart consists of two side by side pumps. The blood vessels are the "pipes" that carry blood throughout the body. The right atrium and right ventricle pump oxygen-poor, CO2-rich blood to the lungs. In the lungs the blood receives oxygen, eliminates carbon dioxide, and travels back to the left ...
... • The heart consists of two side by side pumps. The blood vessels are the "pipes" that carry blood throughout the body. The right atrium and right ventricle pump oxygen-poor, CO2-rich blood to the lungs. In the lungs the blood receives oxygen, eliminates carbon dioxide, and travels back to the left ...
Hypertrophic Cardiomyopathy
... 17 yo male professional basketball player with no known PMH collapses on the playing floor during practice and subsequently arrests. He had been having some exertional dyspnea for a few months prior to this incident but it did not affect his activity level. He was told growing up that he had a “hear ...
... 17 yo male professional basketball player with no known PMH collapses on the playing floor during practice and subsequently arrests. He had been having some exertional dyspnea for a few months prior to this incident but it did not affect his activity level. He was told growing up that he had a “hear ...
Holter Monitoring (Ambulatory Electrocardiography) Defined
... used. This is a retrospective cross-sectional review including all patients presented with palpitation and had Holter monitoring performed in a regional primary care clinic of Hong Kong during the year 2010 to 2014. Clinical information and Holter outcomes were retrieved and analyzed to examine Holt ...
... used. This is a retrospective cross-sectional review including all patients presented with palpitation and had Holter monitoring performed in a regional primary care clinic of Hong Kong during the year 2010 to 2014. Clinical information and Holter outcomes were retrieved and analyzed to examine Holt ...
Duke Children’s Heart Program: A guide to our services
... treatment services to infants, children, adolescents, and young adults with all types of cardiac electrical disorders—both with and without congenital heart disease. These include: Diagnostic arrhythmia evaluation—Several procedures are available to determine the etiology of symptoms such as sync ...
... treatment services to infants, children, adolescents, and young adults with all types of cardiac electrical disorders—both with and without congenital heart disease. These include: Diagnostic arrhythmia evaluation—Several procedures are available to determine the etiology of symptoms such as sync ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.