Depolarization and Repolarization
... of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) and a false negative rate of 20-30%. • ST depression may be associated with hypokalemia or digitalis toxicity. ...
... of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) and a false negative rate of 20-30%. • ST depression may be associated with hypokalemia or digitalis toxicity. ...
MOTETE_2013 - Durban University of Technology
... found a prevalence of 1.3% amongst patients with pericardial disease of any type and 6.95% amongst patients with clinical tamponade. The authors did state that they ...
... found a prevalence of 1.3% amongst patients with pericardial disease of any type and 6.95% amongst patients with clinical tamponade. The authors did state that they ...
PDF
... mechanisms underlying the origin of the first global post-shock activations following the isoelectric window have also been the topic of much discussion and debate. Understanding the mechanisms responsible for the formation of an isoelectric window on the ventricular surface and the origins of the p ...
... mechanisms underlying the origin of the first global post-shock activations following the isoelectric window have also been the topic of much discussion and debate. Understanding the mechanisms responsible for the formation of an isoelectric window on the ventricular surface and the origins of the p ...
Curriculum Vitae: Rachel Lampert
... Common genes contribute to depressive symptoms and heart rate variability: The Twins Heart Study. Twin Research & Human Genetics. 13(1):1-9, 2010 Feb. ...
... Common genes contribute to depressive symptoms and heart rate variability: The Twins Heart Study. Twin Research & Human Genetics. 13(1):1-9, 2010 Feb. ...
systolic murmurs in children - Archives of Disease in Childhood
... had a systolic murmur. This would put the familial possible heart disease 74% were parasternal, of the occurrence of systolic murmurs even higher than the murmurs of probable heart disease 71 %, and of the 40% reported. It appears, therefore, that a familial murmurs in patients with definite heart d ...
... had a systolic murmur. This would put the familial possible heart disease 74% were parasternal, of the occurrence of systolic murmurs even higher than the murmurs of probable heart disease 71 %, and of the 40% reported. It appears, therefore, that a familial murmurs in patients with definite heart d ...
Left ventricular mechanical limitations to stroke volume in healthy
... ejection and filling (6, 13, 27, 28, 31). Two recent studies have further demonstrated that systolic and diastolic LV twist mechanics are significantly enhanced in healthy individuals performing low- to moderate-intensity exercise (9, 23), whereas twist and untwisting are unaltered in patients with ...
... ejection and filling (6, 13, 27, 28, 31). Two recent studies have further demonstrated that systolic and diastolic LV twist mechanics are significantly enhanced in healthy individuals performing low- to moderate-intensity exercise (9, 23), whereas twist and untwisting are unaltered in patients with ...
Acute Effects of Right Ventricular Apical Pacing on Left Ventricular
... and twist, using 2D speckle-tracking strain imaging. Methods and Results—A group of 25 patients with structural normal hearts referred for electrophysiological study were studied. Two-dimensional echocardiography was performed at baseline and during RV apical pacing at the time of the electrophysiol ...
... and twist, using 2D speckle-tracking strain imaging. Methods and Results—A group of 25 patients with structural normal hearts referred for electrophysiological study were studied. Two-dimensional echocardiography was performed at baseline and during RV apical pacing at the time of the electrophysiol ...
PACES/HRS Expert Consensus Statement on the Recognition and
... innovations for CHD of the 1960s and 1970s, coupled with advances in clinical care, have culminated in an increasing and aging cohort with CHD.10 Survival beyond the first year of life has risen from an estimated 25% 50 years ago to 490% expected survival into adulthood.11,12 In a population-based co ...
... innovations for CHD of the 1960s and 1970s, coupled with advances in clinical care, have culminated in an increasing and aging cohort with CHD.10 Survival beyond the first year of life has risen from an estimated 25% 50 years ago to 490% expected survival into adulthood.11,12 In a population-based co ...
PACES/HRS Expert Consensus Statement on the Recognition and
... innovations for CHD of the 1960s and 1970s, coupled with advances in clinical care, have culminated in an increasing and aging cohort with CHD.10 Survival beyond the first year of life has risen from an estimated 25% 50 years ago to 490% expected survival into adulthood.11,12 In a population-based co ...
... innovations for CHD of the 1960s and 1970s, coupled with advances in clinical care, have culminated in an increasing and aging cohort with CHD.10 Survival beyond the first year of life has risen from an estimated 25% 50 years ago to 490% expected survival into adulthood.11,12 In a population-based co ...
The Hemodynamic Effect of Intrinsic Conduction During Left
... applied in a fixed order. It was chosen not to randomize in order to avoid programming errors. To provide for stable conditions, heart rate and surrounding conditions were kept constant during the measurements. This was confirmed by measuring baseline LVdP/dtmax at the start and end of the protocol, ...
... applied in a fixed order. It was chosen not to randomize in order to avoid programming errors. To provide for stable conditions, heart rate and surrounding conditions were kept constant during the measurements. This was confirmed by measuring baseline LVdP/dtmax at the start and end of the protocol, ...
Left Ventricular Eccentric Remodeling and Matrix Loss Are Mediated
... because end-systolic stress is normal in a compensated volume overload (1,2). During the compensated phase of volume overload, forward cardiac output is maintained by a greater-than-normal fractional shortening and stroke volume (2). In fact, normal or slightly reduced fractional shortSee page 822 ...
... because end-systolic stress is normal in a compensated volume overload (1,2). During the compensated phase of volume overload, forward cardiac output is maintained by a greater-than-normal fractional shortening and stroke volume (2). In fact, normal or slightly reduced fractional shortSee page 822 ...
Task Force Report Guidelines for the diagnosis and treatment of chronic
... typically breathlessness or fatigue, either at rest or during exertion, or ankle swelling and objective evidence of cardiac dysfunction at rest (Table 1). A clinical response to treatment directed at heart failure alone is not sufficient for diagnosis, although the patient should generally demonstrate ...
... typically breathlessness or fatigue, either at rest or during exertion, or ankle swelling and objective evidence of cardiac dysfunction at rest (Table 1). A clinical response to treatment directed at heart failure alone is not sufficient for diagnosis, although the patient should generally demonstrate ...
ACC/AHA Guideline
... #Former Task Force member during this writing effort. **Immediate Past Chair. This document was approved by the American College of Cardiology Foundation Board of Trustees in July 2008 and by the American Heart Association Science Advisory and Coordinating Committee in August 2008. The American Hear ...
... #Former Task Force member during this writing effort. **Immediate Past Chair. This document was approved by the American College of Cardiology Foundation Board of Trustees in July 2008 and by the American Heart Association Science Advisory and Coordinating Committee in August 2008. The American Hear ...
Bassett, Kiah - Cardiff Metropolitan University
... a redistribution of blood that would cause decreased preload due to a reduction in venous return. Previous studies have also shown a reduction in end- diastolic volume, which could mean that the change in LV function previously observed is due to a change in blood movement/flow rather than a reducti ...
... a redistribution of blood that would cause decreased preload due to a reduction in venous return. Previous studies have also shown a reduction in end- diastolic volume, which could mean that the change in LV function previously observed is due to a change in blood movement/flow rather than a reducti ...
Predisposing factors of valve regurgitation in complete
... As described previously, the first 6 months of life should be the golden time for definitive repair (6,7,10,13,14,18) because not only preoperative regurgitation, but also pulmonary vascular obstructive disease hardly develops at this period (19,20). We have been performing corrective surgery routin ...
... As described previously, the first 6 months of life should be the golden time for definitive repair (6,7,10,13,14,18) because not only preoperative regurgitation, but also pulmonary vascular obstructive disease hardly develops at this period (19,20). We have been performing corrective surgery routin ...
The Prognostic Value of Left Atrial Peak Reservoir Strain in Acute
... impact of LA volume and GLS on PALS, we performed multiple linear regression analysis with PALS as the dependent variable. Furthermore, the proportion of variance in PALS explained by GLS and LAmax, respectively, was calculated by partial correlation analysis. The ability of measures of LA volumes, ...
... impact of LA volume and GLS on PALS, we performed multiple linear regression analysis with PALS as the dependent variable. Furthermore, the proportion of variance in PALS explained by GLS and LAmax, respectively, was calculated by partial correlation analysis. The ability of measures of LA volumes, ...
Abridged version of the expert consensus document on arterial
... is also possible to check offline the variability of measurement over a range of pulses, according to each algorithm. Since the measurements are made a short time apart, the change in the isovolumic period of the left ventricle or heart rate variability has little or no effect on measured pulse tran ...
... is also possible to check offline the variability of measurement over a range of pulses, according to each algorithm. Since the measurements are made a short time apart, the change in the isovolumic period of the left ventricle or heart rate variability has little or no effect on measured pulse tran ...
topography of cardiac ganglia in the adult human heart - East
... Every fifteenth section from each serial set was stained with Harris' hematoxylin (Lerner Laboratories, Pittsburgh, Pa.) and eosin Y (Sigma). Slides were heated for 30 minutes at 60° C to enhance adhesion of the tissue to the slide, dewaxed in xylene, hydrated through a descending series of ethyl al ...
... Every fifteenth section from each serial set was stained with Harris' hematoxylin (Lerner Laboratories, Pittsburgh, Pa.) and eosin Y (Sigma). Slides were heated for 30 minutes at 60° C to enhance adhesion of the tissue to the slide, dewaxed in xylene, hydrated through a descending series of ethyl al ...
Morphological variations of papillary muscles in
... bellies occur, the authors have recorded various configurations such as two-tiered, interlinked, parallel, arched and V, Y or H configurations.(3) Papillary muscle realignment and repositioning is the treatment of choice for symptomatic left ventricular outflow tract obstruction and dysfunction.(6,8 ...
... bellies occur, the authors have recorded various configurations such as two-tiered, interlinked, parallel, arched and V, Y or H configurations.(3) Papillary muscle realignment and repositioning is the treatment of choice for symptomatic left ventricular outflow tract obstruction and dysfunction.(6,8 ...
2012 EHRA/HRS expert consensus statement on cardiac
... ensure care coordination with other physicians managing the patient’s clinical care. This includes assessment of patient symptoms, as well as diagnostic device data and programming. Historically, significant attention has been placed on the technical aspects of the implant procedure, particularly pl ...
... ensure care coordination with other physicians managing the patient’s clinical care. This includes assessment of patient symptoms, as well as diagnostic device data and programming. Historically, significant attention has been placed on the technical aspects of the implant procedure, particularly pl ...
ESC Guidelines for the Diagnosis and Treatment of Chronic Heart
... physicians and other health care professionals concerned with the management of heart failure patients and to provide advice on how to manage these patients, including recommendations for referral. Documented and published evidence on diagnosis, efficacy, and safety is the main basis for these guide ...
... physicians and other health care professionals concerned with the management of heart failure patients and to provide advice on how to manage these patients, including recommendations for referral. Documented and published evidence on diagnosis, efficacy, and safety is the main basis for these guide ...
Increased Phosphorylation of Ca2+ Handling Proteins as a - J
... yocarditis, and subsequent dilated cardiomyopathy (DCM), is a major cause of heart failure and arrhythmia in young patients.1,2 This condition is characterized by infiltration of inflammatory cells into the myocardium with cellular injury, consequent loss of myocytes and development of fibrosis and ...
... yocarditis, and subsequent dilated cardiomyopathy (DCM), is a major cause of heart failure and arrhythmia in young patients.1,2 This condition is characterized by infiltration of inflammatory cells into the myocardium with cellular injury, consequent loss of myocytes and development of fibrosis and ...
cardiomyopathy - Repatriation Medical Authority
... The terms defined in the Schedule 1 - Dictionary have the meaning given when used in this instrument. ...
... The terms defined in the Schedule 1 - Dictionary have the meaning given when used in this instrument. ...
Myofiber prestretch magnitude determines regional systolic function
... J Physiol Heart Circ Physiol 305: H192–H202, 2013. First published May 10, 2013; doi:10.1152/ajpheart.00186.2012.—Electrical dyssynchrony leads to prestretch in late-activated regions and alters the sequence of mechanical contraction, although prestretch and its mechanisms are not well defined in th ...
... J Physiol Heart Circ Physiol 305: H192–H202, 2013. First published May 10, 2013; doi:10.1152/ajpheart.00186.2012.—Electrical dyssynchrony leads to prestretch in late-activated regions and alters the sequence of mechanical contraction, although prestretch and its mechanisms are not well defined in th ...
Retrograde Conduction to the Atria
... Case 6. Simultaneous lead II and bipolar esophageal lead above. Simultaneous lead II and V esophageal lead below. Retrograde P waves marked by arrows. Top. Ventricular tachycardia with V-A conduction, Wenckebach phenomenon. The second, third, fifth, sixth, and seventh ectopic beats are followed by r ...
... Case 6. Simultaneous lead II and bipolar esophageal lead above. Simultaneous lead II and V esophageal lead below. Retrograde P waves marked by arrows. Top. Ventricular tachycardia with V-A conduction, Wenckebach phenomenon. The second, third, fifth, sixth, and seventh ectopic beats are followed by r ...
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.