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... Materials and methods: In total, 497 patients with suspected coronary artery disease (CAD) underwent gated, singlephoton emission computed tomography (SPECT) imaging with dipyridamole, exercise, or dobutamine stress, and were included in this study. Baseline and maximum heart rate (HR), systolic blo ...
... Materials and methods: In total, 497 patients with suspected coronary artery disease (CAD) underwent gated, singlephoton emission computed tomography (SPECT) imaging with dipyridamole, exercise, or dobutamine stress, and were included in this study. Baseline and maximum heart rate (HR), systolic blo ...
Blood Pressure Maxima in Humans
... lation the length of blood vessel involved increases e.g. in the *Density (water) = 1.00 g/ml; +Density (whole blood) = 1.06 g/ml; #Density (plasma) = 1.025 g/ml case of a blood vessel of radius 0.8 cm the length involved is The volume of blood injected into the aorta can vary be17.8 cm. This differ ...
... lation the length of blood vessel involved increases e.g. in the *Density (water) = 1.00 g/ml; +Density (whole blood) = 1.06 g/ml; #Density (plasma) = 1.025 g/ml case of a blood vessel of radius 0.8 cm the length involved is The volume of blood injected into the aorta can vary be17.8 cm. This differ ...
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... Parameters were summarized using mean, median, standard deviation and inter-quartile ranges where appropriate for continuous data, and counts or percentages for categorical data. For comparability between groups, a Chi-square test was used for categorical variables and analysis of variance (ANOVA) w ...
... Parameters were summarized using mean, median, standard deviation and inter-quartile ranges where appropriate for continuous data, and counts or percentages for categorical data. For comparability between groups, a Chi-square test was used for categorical variables and analysis of variance (ANOVA) w ...
The Controversy Over Cocaine Use and Beta
... treatment for cocaine-induced hypertension until 1985 when Ramoska and Sacchetti suggested that propranolol should be used with caution due to its potential for causing paradoxical hypertension via “unopposed alpha stimulation.”23 By blocking the β-adrenergic receptors, available neurotransmitters p ...
... treatment for cocaine-induced hypertension until 1985 when Ramoska and Sacchetti suggested that propranolol should be used with caution due to its potential for causing paradoxical hypertension via “unopposed alpha stimulation.”23 By blocking the β-adrenergic receptors, available neurotransmitters p ...
ONTOLOGY BASED CONGENITAL HEART DISEASE DIAGNOSIS USING NEURAL NETWORKS
... Defect, the heart must work harder to pump blood through them. The most common of this type defect is Pulmonary Stenosis, Aortic Stenosis. The narrowed valve forces the heart muscle to work harder, eventually leading to thickening and enlarging of the muscle. If the Stenosis is severe, especially in ...
... Defect, the heart must work harder to pump blood through them. The most common of this type defect is Pulmonary Stenosis, Aortic Stenosis. The narrowed valve forces the heart muscle to work harder, eventually leading to thickening and enlarging of the muscle. If the Stenosis is severe, especially in ...
Angina pectoris
... 3- Unstable angina Due to spasm and partial obstruction of coronaries ( occur at rest ). 4- Silent angina ...
... 3- Unstable angina Due to spasm and partial obstruction of coronaries ( occur at rest ). 4- Silent angina ...
Cardiac markers in the emergency department
... Myoglobin – an early marker of cardiac injury Myoglobin is a low-molecular-weight heme protein found in both cardiac and skeletal muscle. It is not cardiac-specific, but is released rapidly (as early as two hours) after the onset of myocardial necrosis (Figure 2). Because it is not specific, myoglob ...
... Myoglobin – an early marker of cardiac injury Myoglobin is a low-molecular-weight heme protein found in both cardiac and skeletal muscle. It is not cardiac-specific, but is released rapidly (as early as two hours) after the onset of myocardial necrosis (Figure 2). Because it is not specific, myoglob ...
Pleural effusions in an overlap ... hypereosinophilic syndrome and erythema
... in addition, prominent pleural effusions and characteristic skin lesions. About 20% of patients with HES have pleural effusions [7]. These are generally secondary to congestive heart failure due to cardiac dysfunction, the main cause of morbidity and mortality in HES [8, 9]. Eosinophilic cardiomyopa ...
... in addition, prominent pleural effusions and characteristic skin lesions. About 20% of patients with HES have pleural effusions [7]. These are generally secondary to congestive heart failure due to cardiac dysfunction, the main cause of morbidity and mortality in HES [8, 9]. Eosinophilic cardiomyopa ...
Longitudinal Hemodynamic Measurements in Swine System
... IACUC protocol regarding the use of animals in research. ...
... IACUC protocol regarding the use of animals in research. ...
Guidelines: Congenital Aortic Valve Stenosis
... In the Ross operation the aortic valve is replaced by the patient’s own pulmonary valve (autograft) and a biological valve is implanted in pulmonary position. Anticoagulation is not necessary. The operation can be performed at any age and offers the advantage that a vital valve with growth potential ...
... In the Ross operation the aortic valve is replaced by the patient’s own pulmonary valve (autograft) and a biological valve is implanted in pulmonary position. Anticoagulation is not necessary. The operation can be performed at any age and offers the advantage that a vital valve with growth potential ...
Coupled systolic-ventricular and vascular stiffening with age
... Nonetheless, the data supported the hypothesis that patients with greater vascular stiffening were more likely to have increased ventricular stiffness. As demonstrated by univariate regression and supported by prior data (32), aging raised Ea principally by its effects on pulsatile loading, with an ...
... Nonetheless, the data supported the hypothesis that patients with greater vascular stiffening were more likely to have increased ventricular stiffness. As demonstrated by univariate regression and supported by prior data (32), aging raised Ea principally by its effects on pulsatile loading, with an ...
20-1 HISTOLOGY Cardiac Muscle FIGURE 20.12 1. Comparison to
... A. The AV node is specialized cardiac muscle located in the interatrial septum just superior to the ventricles. B. Action potentials generated by the SA node reach the AV node. C. The AV node functions to transmit the action potentials from the atria to the ventricles. However, the action potentials ...
... A. The AV node is specialized cardiac muscle located in the interatrial septum just superior to the ventricles. B. Action potentials generated by the SA node reach the AV node. C. The AV node functions to transmit the action potentials from the atria to the ventricles. However, the action potentials ...
Extract ESC Guidelines
... drug-coated balloons for this indication.505,511 However, balloon angioplasty might be a valuable PCI option in all patients in whom implantation of stents is technically not achievable, or in a vessel that is too small to be stented (,2.0 mm), and in patients with critical stenoses who require urge ...
... drug-coated balloons for this indication.505,511 However, balloon angioplasty might be a valuable PCI option in all patients in whom implantation of stents is technically not achievable, or in a vessel that is too small to be stented (,2.0 mm), and in patients with critical stenoses who require urge ...
Longterm Cardiovascular Outcomes in Patients With Chronic Kidney
... between renal function and sex, diabetes, or left ventricular ejection fraction. We considered all variables listed in Table 1 for inclusion in the final statistical model and reached a final parsimonious model, including the following variables: age (continuous), sex (male vs female), left ventricula ...
... between renal function and sex, diabetes, or left ventricular ejection fraction. We considered all variables listed in Table 1 for inclusion in the final statistical model and reached a final parsimonious model, including the following variables: age (continuous), sex (male vs female), left ventricula ...
DISORDER OF CARDIAC RHYTHM
... organized so that the cardiac impulse does not travel from the atria into the ventricles too rapidly; this delay allows time for the atria to empty their blood into the ventricles before ventricular contraction begins. It is primarily the A-V node and its adjacent conductive fibers that delay this ...
... organized so that the cardiac impulse does not travel from the atria into the ventricles too rapidly; this delay allows time for the atria to empty their blood into the ventricles before ventricular contraction begins. It is primarily the A-V node and its adjacent conductive fibers that delay this ...
Summer 2015, Vol. 01, No. 1 - Cardiothoracic Surgery
... The use of surgical robotics was first conceived and developed by the U.S. military for remote battlefield surgery. Its use has increased tremendously over the past decade, with a wider range of procedures performed every year. The technology is essentially an extension of standard minimally invasiv ...
... The use of surgical robotics was first conceived and developed by the U.S. military for remote battlefield surgery. Its use has increased tremendously over the past decade, with a wider range of procedures performed every year. The technology is essentially an extension of standard minimally invasiv ...
PDF 105 KB - Indian Pacing and Electrophysiology Journal
... organised haemopericardium. After the surgery the patient was well and had a normal ECG. Nakazato et al describes a similar situation in this issue of the journal 8. Compression of the right ventricular outflow tract by an abnormal infective mass, with/without focal pericardial inflammation was thou ...
... organised haemopericardium. After the surgery the patient was well and had a normal ECG. Nakazato et al describes a similar situation in this issue of the journal 8. Compression of the right ventricular outflow tract by an abnormal infective mass, with/without focal pericardial inflammation was thou ...
Antibiotic Prophylaxis for Dental Treatment of Patients with Cardio
... Conditions associated with risk of Infective Endocarditis (American Heart Association (AHA) Guidelines, 1997) Negligible-risk category – Isolated secundum atrial septal defect – Surgical repair of atrial or ventricular septal defect or patent ductus arteriosus of more than 6 months duration – Previ ...
... Conditions associated with risk of Infective Endocarditis (American Heart Association (AHA) Guidelines, 1997) Negligible-risk category – Isolated secundum atrial septal defect – Surgical repair of atrial or ventricular septal defect or patent ductus arteriosus of more than 6 months duration – Previ ...
Cerebral Protection During MitraClip Implantation
... The procedural details of percutaneous mitral ...
... The procedural details of percutaneous mitral ...
The Electric Heart Center for the QRS Complex in Cardiac Patients
... torso model and subject's body build. Nevertheless, despite these errors, this method was capable of resolution of dipole location to within ± 1 cm. in the transveise plane. Fluoroscopic estimate of the center of ventricular mass suffers from numerous well known errors, chief of which is the difficu ...
... torso model and subject's body build. Nevertheless, despite these errors, this method was capable of resolution of dipole location to within ± 1 cm. in the transveise plane. Fluoroscopic estimate of the center of ventricular mass suffers from numerous well known errors, chief of which is the difficu ...
Advantages of PET Myocardial Imaging
... does not rule out recurrent prostate cancer and a positive image does not confirm its presence. Clinical correlation, which may include histopathological evaluation, is recommended. ...
... does not rule out recurrent prostate cancer and a positive image does not confirm its presence. Clinical correlation, which may include histopathological evaluation, is recommended. ...
Amiodarone role in ventricular arrhythmias in aortic Stenosis
... Chronic systolic pressure overload, of arterial hypertension and AS, results in increased ventricular wall stress. As consequence of the hemodynamic abnormality, myocardial hypertrophy is thought to be a compensatory process that leads to normalization in wall stress. Structural remodeling of the ma ...
... Chronic systolic pressure overload, of arterial hypertension and AS, results in increased ventricular wall stress. As consequence of the hemodynamic abnormality, myocardial hypertrophy is thought to be a compensatory process that leads to normalization in wall stress. Structural remodeling of the ma ...
1999 - Pediatrics
... Chick embryonic hearts were subjected to conotruncal banding (increased afterload model), or left atrial ligation or clipping, creating a combined model of increased preload in right ventricle and decreased preload in left ventricle. Modifications of myocardial architecture were studied by scanning ...
... Chick embryonic hearts were subjected to conotruncal banding (increased afterload model), or left atrial ligation or clipping, creating a combined model of increased preload in right ventricle and decreased preload in left ventricle. Modifications of myocardial architecture were studied by scanning ...
Valvular Heart Disease - Nursing PowerPoint Presentations
... • Long latent period of 20 to 40 years from the occurrence of rheumatic fever to onset of symptoms. • Once symptoms develop, there is a further 10 years before symptoms become disabling. • Once significant limiting symptoms occur, the 10year survival rate is 5-15%. • When there is severe pulmonary h ...
... • Long latent period of 20 to 40 years from the occurrence of rheumatic fever to onset of symptoms. • Once symptoms develop, there is a further 10 years before symptoms become disabling. • Once significant limiting symptoms occur, the 10year survival rate is 5-15%. • When there is severe pulmonary h ...
Validation of echocardiographic methods for assessing left
... accordance with the Guide for the Care and Use of Laboratory Animals (NIH Publication No. 85-23) and the Institutional Animal Care and Use Committee at Case Western Reserve University. All echocardiographic studies, LV pressure studies, and data interpretation were conducted in a blinded fashion. Tw ...
... accordance with the Guide for the Care and Use of Laboratory Animals (NIH Publication No. 85-23) and the Institutional Animal Care and Use Committee at Case Western Reserve University. All echocardiographic studies, LV pressure studies, and data interpretation were conducted in a blinded fashion. Tw ...