Left ventricular apical wall motion abnormality is associated with
... Given the complexity and expense of LV lead implantation, factors predicting lack of response should be identified. One such predictor is the presence of posterolateral scar tissue, recently demonstrated by Bleeker et al12 to be associated with CRT nonresponse. These data are consistent with another ...
... Given the complexity and expense of LV lead implantation, factors predicting lack of response should be identified. One such predictor is the presence of posterolateral scar tissue, recently demonstrated by Bleeker et al12 to be associated with CRT nonresponse. These data are consistent with another ...
real heart valve operation in cardiovascular model with
... as well as, it helps to represent some of the most common heart’s abnormalities such as mitral valve regurgitation and aortic stenosis. Cardiovascular system models using electrical systems do not model chambers and the valves are ideal. This study proposes a model for heart valves based on the seve ...
... as well as, it helps to represent some of the most common heart’s abnormalities such as mitral valve regurgitation and aortic stenosis. Cardiovascular system models using electrical systems do not model chambers and the valves are ideal. This study proposes a model for heart valves based on the seve ...
Sudden Cardiac Death (SCD): Facts, Guidelines and Beyond
... NICM: CONCLUSION • Patients benefit from an ICD if they have NICM, LVEF <35% beyond 3 months of optimally treated heart failure, NYHA II-III symptoms • Unexplained syncope in the setting of NICM portends poor prognosis and merits an ICD • EP study has no role in risk stratification unless there is ...
... NICM: CONCLUSION • Patients benefit from an ICD if they have NICM, LVEF <35% beyond 3 months of optimally treated heart failure, NYHA II-III symptoms • Unexplained syncope in the setting of NICM portends poor prognosis and merits an ICD • EP study has no role in risk stratification unless there is ...
importance of right ventricular end-systolic regional wall stress in
... sized ventricles and wall thicknesses [2]. Wood was the first to suggest that there is an important relationship between cardiac size and the extent of myocardial hypertrophy [3]. Several investigators [1, 3-9] have suggested that the myocardial hypertrophy that develops in patients with chronic hea ...
... sized ventricles and wall thicknesses [2]. Wood was the first to suggest that there is an important relationship between cardiac size and the extent of myocardial hypertrophy [3]. Several investigators [1, 3-9] have suggested that the myocardial hypertrophy that develops in patients with chronic hea ...
Detection of Hypokinesis by Quantitative
... Correcting for rotation tended to increase the percent of systolic motion in the antero-lateral wall, while diminishing motion in the inferior wall. The most striking differences were noted in the most apical portions of both walls, where correcting for rotation tended to equalize the amplitudes of ...
... Correcting for rotation tended to increase the percent of systolic motion in the antero-lateral wall, while diminishing motion in the inferior wall. The most striking differences were noted in the most apical portions of both walls, where correcting for rotation tended to equalize the amplitudes of ...
Extra-corporeal membrane oxygenation support in cardiac
... tation for primary graft failure with severe hemodynamic instability. PGF is the leading cause of early mortality after heart transplantation. Pre-transplant recipient and donor organ characteristics are associated with the onset of PGF: increased pulmonary vascular resistances, preservation and rep ...
... tation for primary graft failure with severe hemodynamic instability. PGF is the leading cause of early mortality after heart transplantation. Pre-transplant recipient and donor organ characteristics are associated with the onset of PGF: increased pulmonary vascular resistances, preservation and rep ...
Cardiac Contractility
... An 86-year old woman presents with increased confusion and vomiting. Per family, she’s had increasing weakness, nausea & anorexia over the last 3 days. PMHx: • hypertension • congestive heart failure (CHF) • diabetes mellitus ...
... An 86-year old woman presents with increased confusion and vomiting. Per family, she’s had increasing weakness, nausea & anorexia over the last 3 days. PMHx: • hypertension • congestive heart failure (CHF) • diabetes mellitus ...
d. 150 W
... RNO at studying the skeletal system and somatoskopy c. the usage of functional tests in the functional diagnostics d. indicating the biochemical signs of fatigue ...
... RNO at studying the skeletal system and somatoskopy c. the usage of functional tests in the functional diagnostics d. indicating the biochemical signs of fatigue ...
Care and Management of the Cardiac Patient on Venous
... o Assess for signs and symptoms of infection including, but not limited to: glucose instability, peripheral vasodilation or vasoconstriction, signs of incisional and/or central access site infection o Routine monitoring of CBC with differential o Antibiotics and fungal prophylaxis per institutional ...
... o Assess for signs and symptoms of infection including, but not limited to: glucose instability, peripheral vasodilation or vasoconstriction, signs of incisional and/or central access site infection o Routine monitoring of CBC with differential o Antibiotics and fungal prophylaxis per institutional ...
In vivo dispersion in repolarization and arrhythmias in - AJP
... underlying pathophysiology differs. Furthermore, whole dispersion in RT is sensitive to the dimensions of the area of assessment, and if the entire endocardium or epicardium has not been mapped, we may assume that the total RT is an underestimation of the real total RT in this study (and in other st ...
... underlying pathophysiology differs. Furthermore, whole dispersion in RT is sensitive to the dimensions of the area of assessment, and if the entire endocardium or epicardium has not been mapped, we may assume that the total RT is an underestimation of the real total RT in this study (and in other st ...
Epicardial Approach: Technique to Prevent Complications
... perform a coronary angiogram to confirm that a large RV branch is not located close to the epicardial entry site. Also, as the edge of the sheath is stiff and sharp, a sheath should never be left without any catheter or wire inside. A novel puncture needle with a radiofrequency energy (RF) delivery ...
... perform a coronary angiogram to confirm that a large RV branch is not located close to the epicardial entry site. Also, as the edge of the sheath is stiff and sharp, a sheath should never be left without any catheter or wire inside. A novel puncture needle with a radiofrequency energy (RF) delivery ...
the 12 leads ECG - HumanPhysiology.Academy
... The Einthoven leads are essentially bipolar leads; that is, they record from two electrodes simultaneously, one positive and one negative and the signal is a composite of the current picked up at both sites. These leads are therefore called bipolar leads. ...
... The Einthoven leads are essentially bipolar leads; that is, they record from two electrodes simultaneously, one positive and one negative and the signal is a composite of the current picked up at both sites. These leads are therefore called bipolar leads. ...
Standardized cardiovascular magnetic resonance imaging (CMR
... body weight/minute until target heart rate [85% × (220age)] reached. ...
... body weight/minute until target heart rate [85% × (220age)] reached. ...
Cardiac side effects of molecular targeted therapies - e-ESO
... practice[29]. A high degree of disagreement is found among studies evaluating the diagnostic accuracy of clinical and physical examinations[30]. The sensitivity and specificity of clinical signs do not exceed 75% [31]. No clinical or physical examination is able to discriminate between heart failure ...
... practice[29]. A high degree of disagreement is found among studies evaluating the diagnostic accuracy of clinical and physical examinations[30]. The sensitivity and specificity of clinical signs do not exceed 75% [31]. No clinical or physical examination is able to discriminate between heart failure ...
Effect of Training Mode on Post-Exercise Heart Rate Recovery of
... trained track and road cyclists by measuring their recovery heart rates at one and two minutes after maximal exercise testing. The aerobically trained road cyclists showed faster HRRec than the anaerobically trained track cyclists at both one and two minutes of recovery, with a statistically signifi ...
... trained track and road cyclists by measuring their recovery heart rates at one and two minutes after maximal exercise testing. The aerobically trained road cyclists showed faster HRRec than the anaerobically trained track cyclists at both one and two minutes of recovery, with a statistically signifi ...
Trust Guideline on Routine Oxygen Saturation Measurement on the
... Cardiovascular malformations are the leading group of congenital malformations affecting 7-8/1000 newborn infants. They account for 6-10% of all infant mortality. Cardiovascular malformations also account for 20-40% of deaths attributable to all congenital malformations and most of these deaths occu ...
... Cardiovascular malformations are the leading group of congenital malformations affecting 7-8/1000 newborn infants. They account for 6-10% of all infant mortality. Cardiovascular malformations also account for 20-40% of deaths attributable to all congenital malformations and most of these deaths occu ...
A simple test of one minute heart rate variability during deep
... The cardiovascular system is influenced by the autonomic nervous system (ANS). The two neural mechanisms for controlling heart rate are the sympathetic nervous system, which has positive chronotropic, ionotropic, dromotropic and bathmotropic effect where as the parasympathetic nervous system have ne ...
... The cardiovascular system is influenced by the autonomic nervous system (ANS). The two neural mechanisms for controlling heart rate are the sympathetic nervous system, which has positive chronotropic, ionotropic, dromotropic and bathmotropic effect where as the parasympathetic nervous system have ne ...
Mitral annular plane systolic excursion (MAPSE)
... mortality has produced conflicting results [2, 5, 29]. In patients with septic shock studies measuring the LV longitudinal function by tissue Doppler imaging (TDI) have moved into focus during the recent years identifying mainly diastolic TDI indices as prognostic markers whereas systolic TDI parame ...
... mortality has produced conflicting results [2, 5, 29]. In patients with septic shock studies measuring the LV longitudinal function by tissue Doppler imaging (TDI) have moved into focus during the recent years identifying mainly diastolic TDI indices as prognostic markers whereas systolic TDI parame ...
Cardiac Arrhythmias (Part 2)
... heart, the irregularity of the cycle length, associated drug therapy, the peripheral vascular vasomotor system, disease in organ systems other than the heart, and the degree of anxiety caused by the disease processes. Sinus bradyeardia, even with rates as low as 40 beats/min, may not be associated w ...
... heart, the irregularity of the cycle length, associated drug therapy, the peripheral vascular vasomotor system, disease in organ systems other than the heart, and the degree of anxiety caused by the disease processes. Sinus bradyeardia, even with rates as low as 40 beats/min, may not be associated w ...
biodiversity of the coronary arteries in cattle
... groove goes down through this groove as a subsinusal branch. With a long trajectory, circumflex branch emits collaterals both from the atrial and ventricular edge, the latter being more numerous and more voluminous. The main collaterals emitted from the ventricular edge of heart, have a descendant ...
... groove goes down through this groove as a subsinusal branch. With a long trajectory, circumflex branch emits collaterals both from the atrial and ventricular edge, the latter being more numerous and more voluminous. The main collaterals emitted from the ventricular edge of heart, have a descendant ...
Programmed Ventricular Stimulation - Indications and Limitations: A
... PVS in patients with idiopathic VF yields inconsistent inducibility (50-60%).37,38 A “loss-of-function” or mutation in SCN5A genes is common in patients with idiopathic VF (and in some patients with early repolarisation syndrome) and this phenomenon predisposes to idiopathic VF.38 The value of PVS i ...
... PVS in patients with idiopathic VF yields inconsistent inducibility (50-60%).37,38 A “loss-of-function” or mutation in SCN5A genes is common in patients with idiopathic VF (and in some patients with early repolarisation syndrome) and this phenomenon predisposes to idiopathic VF.38 The value of PVS i ...
The electrocardiogram in the patient with syncope
... are far ranging, including the various ST-segment and T-wave abnormalities of acute coronary syndrome (ACS), ventricular preexcitation as seen in the WPW syndrome, Brugada syndrome with the associated tendency for sudden death, prolonged QT interval common in the diverse long QT interval presentatio ...
... are far ranging, including the various ST-segment and T-wave abnormalities of acute coronary syndrome (ACS), ventricular preexcitation as seen in the WPW syndrome, Brugada syndrome with the associated tendency for sudden death, prolonged QT interval common in the diverse long QT interval presentatio ...
Computational cardiac atlases: from patient to population and back Review Article
... (including regional strain, rotation and displacement). One powerful technique is principal component analysis (PCA), which describes the major sources of variation within a multidimensional data set by decomposing the variability into a set of orthogonal components or ‘modes’ (Cootes et al. 1994). ...
... (including regional strain, rotation and displacement). One powerful technique is principal component analysis (PCA), which describes the major sources of variation within a multidimensional data set by decomposing the variability into a set of orthogonal components or ‘modes’ (Cootes et al. 1994). ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.