Cardiac Mapping Systems
... the use of the RPM system in a group of patients with various arrhythmias and demonstrated the system's feasibility, safety, and efficacy; the system was then operated without the option of geometry reconstruction. Schreieck et al. (30) evaluated the efficacy of a newly released version of the syste ...
... the use of the RPM system in a group of patients with various arrhythmias and demonstrated the system's feasibility, safety, and efficacy; the system was then operated without the option of geometry reconstruction. Schreieck et al. (30) evaluated the efficacy of a newly released version of the syste ...
S0735109707014052_mmc2
... a. It is likely that suboptimal images will preclude obtaining a diagnostic TTE study based on patient characteristics alone (patient is intubated, recent post op, intra-procedural study, severe chest wall abnormalities and or COPD etc); or when b. Visualization of certain structures seen best by TE ...
... a. It is likely that suboptimal images will preclude obtaining a diagnostic TTE study based on patient characteristics alone (patient is intubated, recent post op, intra-procedural study, severe chest wall abnormalities and or COPD etc); or when b. Visualization of certain structures seen best by TE ...
Tachycardia - UW Blogs Network
... impulse encounters separate and electrophysiologically distinct pathways that are anatomically connected at both ends as shown below. In this example (Figure 1), a wave of depolarization (impulse for short), shown as the heavy black arrow in the left panel depolarizes from top to bottom via separate ...
... impulse encounters separate and electrophysiologically distinct pathways that are anatomically connected at both ends as shown below. In this example (Figure 1), a wave of depolarization (impulse for short), shown as the heavy black arrow in the left panel depolarizes from top to bottom via separate ...
Appropriate Use Criteria for ICD/CRT Online Appendix Guideline
... If coronary revascularization cannot be carried out and there is evidence of prior MI and significant LV dysfunction, the primary therapy of patients resuscitated from VF should be the ICD in patients who are receiving chronic optimal medical therapy and those who have reasonable expectation of surv ...
... If coronary revascularization cannot be carried out and there is evidence of prior MI and significant LV dysfunction, the primary therapy of patients resuscitated from VF should be the ICD in patients who are receiving chronic optimal medical therapy and those who have reasonable expectation of surv ...
Failure of Glycogen Depletion to Improve Left Ventricular Function of
... ischemia, depleted tissue glycogen stores, reduced accumulation of tissue lactate, and thereby improved functional recovery. They concluded that glycogen depletion protects the ischemic myocardium. We thought that glycogen depletion might improve cardiac function after elective ischemic arrest. Beca ...
... ischemia, depleted tissue glycogen stores, reduced accumulation of tissue lactate, and thereby improved functional recovery. They concluded that glycogen depletion protects the ischemic myocardium. We thought that glycogen depletion might improve cardiac function after elective ischemic arrest. Beca ...
Sinus of Valsalva Aneurysm with Rupturing into the Right Atrium ¾ A
... also can lead to distortion of aortic valve and aortic regurgitation. Un-ruptured sinus of Valsalva aneurysms usually do not cause any symptom and are often found during echocardiogram examination and cardiac catheterization. However, un-ruptured sinus of Valsalva aneurysm may cause right ventricula ...
... also can lead to distortion of aortic valve and aortic regurgitation. Un-ruptured sinus of Valsalva aneurysms usually do not cause any symptom and are often found during echocardiogram examination and cardiac catheterization. However, un-ruptured sinus of Valsalva aneurysm may cause right ventricula ...
ESC Guidelines for cardiac pacing and cardiac resynchronization
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
A review of heart chamber segmentation for structural and functional
... 17.3 million people died due to CVDs worldwide, accounting for 30 % of total deaths [1]. Of these cases, about 7.3 million were due to coronary heart disease, and 6.2 million were due to stroke [2]. However, partially due to the aging population, this number keeps increasing. It is predicted that by ...
... 17.3 million people died due to CVDs worldwide, accounting for 30 % of total deaths [1]. Of these cases, about 7.3 million were due to coronary heart disease, and 6.2 million were due to stroke [2]. However, partially due to the aging population, this number keeps increasing. It is predicted that by ...
HRS/ACC/AHA Expert Consensus Statement on
... are not given a Class recommendation; instead, phrases ...
... are not given a Class recommendation; instead, phrases ...
New congenital coronary artery anomaly – double supply of single
... the AIVS, and then reentering the distal AIVS. It is the source of the major diagonal vessels. Type II: The short LAD is the same as in Type I. The long LAD differs only in that it descends on the right ventricular side, rather than the left, before reentering the AIVS. Type III: The long LAD travel ...
... the AIVS, and then reentering the distal AIVS. It is the source of the major diagonal vessels. Type II: The short LAD is the same as in Type I. The long LAD differs only in that it descends on the right ventricular side, rather than the left, before reentering the AIVS. Type III: The long LAD travel ...
Increasing survival rate from commotio cordis
... cordis, that is, from 10%–15% before year 2000 to 450% in the most recent 5-year period. Furthermore, our analysis defines certain factors that have likely potentiated survival and explain the decreasing mortality rate in the registry from these events. In survivors, estimated response time from col ...
... cordis, that is, from 10%–15% before year 2000 to 450% in the most recent 5-year period. Furthermore, our analysis defines certain factors that have likely potentiated survival and explain the decreasing mortality rate in the registry from these events. In survivors, estimated response time from col ...
The Brugada ECG Pattern - Circulation: Arrhythmia and
... bundle-branch block morphology and probably originate from the right ventricle. In SCN5A mutation carriers, PVC morphologies are more diverse and often have right bundle-branch block morphology in line with a left ventricular origin.20 Like in the LQTS,21 the Brugada ECG pattern and ventricular arrh ...
... bundle-branch block morphology and probably originate from the right ventricle. In SCN5A mutation carriers, PVC morphologies are more diverse and often have right bundle-branch block morphology in line with a left ventricular origin.20 Like in the LQTS,21 the Brugada ECG pattern and ventricular arrh ...
СARRENT ISSUES OF THE AORTIC FUNCTIONAL MORPHOLOGY
... the nodule with blood and those of the aorta do not participate in its blood supply. Later E. B. Heisman (1966) presented opposed data on vascularization of the aortic reflexogenic area. Speaking about hemoreception Heimans and Neil (1958) point out aortic paraganglia. According to William J. Crause ...
... the nodule with blood and those of the aorta do not participate in its blood supply. Later E. B. Heisman (1966) presented opposed data on vascularization of the aortic reflexogenic area. Speaking about hemoreception Heimans and Neil (1958) point out aortic paraganglia. According to William J. Crause ...
Origination and Development of Isoproterenol Induced Myocardial
... infusion75. When isoproterenol was infused at a rate, which failed to maintain the increase in contractile force, it was found that subendocardial flow fell by 35%, while subepicardial flow increased by 19%. Thus, although spasm of coronary arteries and/or veins may well occur, it is possible that i ...
... infusion75. When isoproterenol was infused at a rate, which failed to maintain the increase in contractile force, it was found that subendocardial flow fell by 35%, while subepicardial flow increased by 19%. Thus, although spasm of coronary arteries and/or veins may well occur, it is possible that i ...
Variations of origin of coronary artery and their importance
... In the present study, 2 of the specimens presented 3 ostia in the anterior aortic sinus which gave rise to the RCA, left anterior descending and circumflex arteries. On the other hand, 4 ostia were observed in 2 other specimens wherein the conus artery arose additionally from the fourth ostium. Mota ...
... In the present study, 2 of the specimens presented 3 ostia in the anterior aortic sinus which gave rise to the RCA, left anterior descending and circumflex arteries. On the other hand, 4 ostia were observed in 2 other specimens wherein the conus artery arose additionally from the fourth ostium. Mota ...
Articles in PresS. Am J Physiol Heart Circ Physiol (November 20
... cardiac remodeling using murine MI models, which are the most common animal models used to ...
... cardiac remodeling using murine MI models, which are the most common animal models used to ...
Correlation of Atrial Natriuretic Peptide and Cyclic
... We observed a good correlation between atrial natriuretic peptide and ventricular function, whereas the correlation between left ventricular ejection fraction and cGMP was significant but inferior to that of atrial natriuretic peptide and left ventricular ejection fraction (fig. 2b). This difference ...
... We observed a good correlation between atrial natriuretic peptide and ventricular function, whereas the correlation between left ventricular ejection fraction and cGMP was significant but inferior to that of atrial natriuretic peptide and left ventricular ejection fraction (fig. 2b). This difference ...
EFFECTIVENESS OF A HANDHELD REMOTE ECG MONITOR
... indices to differentiate ECG recordings from normal and subjects with congestive heart failure (CHF) was evaluated. The indices identified to be sensitive in differentiating normal from subjects with CHF were used to determine if they predict the onset of chest pain (arrhythmia) in recording of an o ...
... indices to differentiate ECG recordings from normal and subjects with congestive heart failure (CHF) was evaluated. The indices identified to be sensitive in differentiating normal from subjects with CHF were used to determine if they predict the onset of chest pain (arrhythmia) in recording of an o ...
ACC/AHA/HRS 2008 Guidelines for Device
... groups when appropriate. Writing committees are specifically charged to perform a formal literature review, weigh the strength of evidence for or against a particular treatment or procedure, and include estimates of expected health outcomes where data exist. Patient-specific modifiers and comorbidit ...
... groups when appropriate. Writing committees are specifically charged to perform a formal literature review, weigh the strength of evidence for or against a particular treatment or procedure, and include estimates of expected health outcomes where data exist. Patient-specific modifiers and comorbidit ...
Clinical Significance of the Acoustic Detection of Coronary Artery
... (400−1,500 Hz)and subjected to frequency analysis using the maximum entropy method. The ratio of heart sound amplitudes within the 400−700 Hz band to those within the 400−1,500 Hz band was designated as the power ratio. Results. The relationship between the degree of stenosis and the stenosis sounds ...
... (400−1,500 Hz)and subjected to frequency analysis using the maximum entropy method. The ratio of heart sound amplitudes within the 400−700 Hz band to those within the 400−1,500 Hz band was designated as the power ratio. Results. The relationship between the degree of stenosis and the stenosis sounds ...
Hyaluronan and the Receptor CD 44 in the Heart and
... Except for HYA all GAGs are covalently bound to a “core” protein in forms of proteoglycans (PG:s). The PGs are not only secreted components in the ECM but can also be integrated into the plasma membrane. Due to the GAG ability to differ in protein content and molecular size, PGs have an almost limit ...
... Except for HYA all GAGs are covalently bound to a “core” protein in forms of proteoglycans (PG:s). The PGs are not only secreted components in the ECM but can also be integrated into the plasma membrane. Due to the GAG ability to differ in protein content and molecular size, PGs have an almost limit ...
file
... estimated with tissue-Doppler echocardiography and was unrelated to sevoflurane administration or size of irreversible ischemic injury. Thus, unable to prove the existence of a ‘trigger’ mechanism for sevoflurane preconditioning, we proceeded to evaluate infarct size mitigation by continuous pre-, p ...
... estimated with tissue-Doppler echocardiography and was unrelated to sevoflurane administration or size of irreversible ischemic injury. Thus, unable to prove the existence of a ‘trigger’ mechanism for sevoflurane preconditioning, we proceeded to evaluate infarct size mitigation by continuous pre-, p ...
"MRS Studies of Creatine Kinase Metabolism in Human Heart" in
... (T1 ) measurement, or for reference scans for quantification29 or studies involving rest and exercise33 or pharmaceutical intervention20 – then this SNR must often be realized in under 10 min. The spatial localization method and study protocol must be tailored accordingly lest the study fail to achi ...
... (T1 ) measurement, or for reference scans for quantification29 or studies involving rest and exercise33 or pharmaceutical intervention20 – then this SNR must often be realized in under 10 min. The spatial localization method and study protocol must be tailored accordingly lest the study fail to achi ...
Aberrant Intracellular Calcium Cycling in the Heart
... During the past two decades, it has also risen above infectious diseases as the leading cause of years of life lost. Heart failure, characterized by weak pump function of the heart, and disturbances in heart rhythm (arrhythmias) are common and interrelated mechanisms underlying cardiac mortality. In ...
... During the past two decades, it has also risen above infectious diseases as the leading cause of years of life lost. Heart failure, characterized by weak pump function of the heart, and disturbances in heart rhythm (arrhythmias) are common and interrelated mechanisms underlying cardiac mortality. In ...
ACC / AHA / HRS 2008 guidelines for device-based
... It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data documenting ...
... It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and expert analysis of the available data documenting ...
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.