Autonomic Nervous System Regulation
... very large veins (the superior and inferior vena cavae). The right atrium squeezes, the tricuspid valve opens, and blood flows to the right ventricle. Next, the right ventricle squeezes, the tricuspid valve closes, the pulmonary valve opens, and blood is injected into the pulmonary artery. Blood the ...
... very large veins (the superior and inferior vena cavae). The right atrium squeezes, the tricuspid valve opens, and blood flows to the right ventricle. Next, the right ventricle squeezes, the tricuspid valve closes, the pulmonary valve opens, and blood is injected into the pulmonary artery. Blood the ...
Basic science behind the cardiovascular benefits of exercise
... cardiovascular (CV) disease and all-cause mortality, with increases in cardiorespiratory fitness associated with corresponding decreases in CV disease risk. The effects of exercise upon the myocardium and vascular system are dependent upon the frequency, intensity and duration of the exercise itself. ...
... cardiovascular (CV) disease and all-cause mortality, with increases in cardiorespiratory fitness associated with corresponding decreases in CV disease risk. The effects of exercise upon the myocardium and vascular system are dependent upon the frequency, intensity and duration of the exercise itself. ...
Katherine Karczewski, 2012. COPD leads to cor pulmonale.
... enlargement. There will be dominant R waves in V1 and V2 and prominent S waves in V5 and V6 because of right ventricular hypertrophy. Increased P wave amplitude in Lead II due to right atrial enlargement. (Up to Date, 2012) ...
... enlargement. There will be dominant R waves in V1 and V2 and prominent S waves in V5 and V6 because of right ventricular hypertrophy. Increased P wave amplitude in Lead II due to right atrial enlargement. (Up to Date, 2012) ...
Association of Fitness in Young Adulthood With Survival and
... with a decreased risk for cardiovascular disease (CVD).1-4 Despite a shift in the locus of CVD prevention to youth,5,6 little evidence currently exists on the role of CRF and its changes in young adulthood on long-term clinical cardiovascular outcomes and structure. Most large studies of CRF focus o ...
... with a decreased risk for cardiovascular disease (CVD).1-4 Despite a shift in the locus of CVD prevention to youth,5,6 little evidence currently exists on the role of CRF and its changes in young adulthood on long-term clinical cardiovascular outcomes and structure. Most large studies of CRF focus o ...
Anemia LECTURE IN INTERNAL MEDICINE FOR IV COURSE
... attention to coronary artery disease or myocardial infarctions, risk factors for coronary artery disease (CAD), and family history of sudden cardiac death are extremely important. • Auscultation may detect an irregular rhythm or premature beats. • Careful scrutiny of the electrocardiogram (ECG) is i ...
... attention to coronary artery disease or myocardial infarctions, risk factors for coronary artery disease (CAD), and family history of sudden cardiac death are extremely important. • Auscultation may detect an irregular rhythm or premature beats. • Careful scrutiny of the electrocardiogram (ECG) is i ...
CLINICAL INVESTIGATIONS Comparison of bispectral index, 95
... end of surgery, on return of the gag reflex and when the patient could follow a verbal command. When indices at the start of induction were compared with those at tube insertion, all four decreased significantly. BIS decreased from a mean of 95.38 (SEM 1.02) to 44.22 (1.05), mean SEF from 20.91 (1.1 ...
... end of surgery, on return of the gag reflex and when the patient could follow a verbal command. When indices at the start of induction were compared with those at tube insertion, all four decreased significantly. BIS decreased from a mean of 95.38 (SEM 1.02) to 44.22 (1.05), mean SEF from 20.91 (1.1 ...
Myocardial contraction fraction: Ideas for analysis
... MCF in Cardiac Amyloid • Amyloid causes thickening of the ventricular wall and increased myocardial mass that results in a reduction in EDV • Thus, despite declines in SV that accompany disease progression, the ejection fraction (EF) remains ‘‘normal’’ or ‘‘preserved’’ even in advanced stages ...
... MCF in Cardiac Amyloid • Amyloid causes thickening of the ventricular wall and increased myocardial mass that results in a reduction in EDV • Thus, despite declines in SV that accompany disease progression, the ejection fraction (EF) remains ‘‘normal’’ or ‘‘preserved’’ even in advanced stages ...
Left Ventricular Systolic Dysfunction in Asymptomatic Black
... mild LV systolic dysfunction (LVEF 45–54%), 43 (2.3%) had moderate LV systolic dysfunction (LVEF 30–44%), and 16 (0.9%) had severe LV systolic dysfunction (LVEF < 30%). Male subjects had worse LV systolic function compared to women (mean LVEF 73.2% vs. 75.6%, P value < 0.0001) and diabetic subjects ...
... mild LV systolic dysfunction (LVEF 45–54%), 43 (2.3%) had moderate LV systolic dysfunction (LVEF 30–44%), and 16 (0.9%) had severe LV systolic dysfunction (LVEF < 30%). Male subjects had worse LV systolic function compared to women (mean LVEF 73.2% vs. 75.6%, P value < 0.0001) and diabetic subjects ...
Role of Nitric Oxide in the Systemic and Pulmonary Circulation of
... in vivo is limited by other factors such as the abundance of the co-substrate NADPH or cofactors such as FAD, FMN, heme, calmodulin, and tetrahydrobiopterin as cofactors (Umans and Levi, ’95). A limited supply of any of these substances could limit the reaction irrespective of the amount of L-Arg ad ...
... in vivo is limited by other factors such as the abundance of the co-substrate NADPH or cofactors such as FAD, FMN, heme, calmodulin, and tetrahydrobiopterin as cofactors (Umans and Levi, ’95). A limited supply of any of these substances could limit the reaction irrespective of the amount of L-Arg ad ...
SVT
... • Reentry, Automaticity and Triggered (rare) Activity have been found as causes • Rates 120 to 150 • Usually 1:1 AVN conduction and persistence despite AV block • Usually from right atria (Ring of Fire) • Can be seen as an incisional tachycardia from previous surgery..i.e. ASD repair • May see remis ...
... • Reentry, Automaticity and Triggered (rare) Activity have been found as causes • Rates 120 to 150 • Usually 1:1 AVN conduction and persistence despite AV block • Usually from right atria (Ring of Fire) • Can be seen as an incisional tachycardia from previous surgery..i.e. ASD repair • May see remis ...
Cardiac Catheterization
... Cardiac Catheterization and Hybrid Laboratory Children’s Hospital & Medical Center Fellowship Objectives, Responsibilities and Rotation Curriculum Supervisory Policy: Faculty: ...
... Cardiac Catheterization and Hybrid Laboratory Children’s Hospital & Medical Center Fellowship Objectives, Responsibilities and Rotation Curriculum Supervisory Policy: Faculty: ...
Atrial fibrillation in pure rheumatic mitral valvular disease is
... Abstract. – Background: Some of theories try to explain the insurgence of atrial fibrillation (AF) in patients with acute articular rheumatism (AAR). These theories remind the close relation between AF and left atrium, or with valvular vitium degree, or monophasic action potential and histological c ...
... Abstract. – Background: Some of theories try to explain the insurgence of atrial fibrillation (AF) in patients with acute articular rheumatism (AAR). These theories remind the close relation between AF and left atrium, or with valvular vitium degree, or monophasic action potential and histological c ...
Editor`s Perspective - Circulation: Arrhythmia and Electrophysiology
... pathways without injuring the AV node. Furthermore, because this is a true septum, it becomes possible for pathways to have their atrial insertion in 1 atrium and the ventricular insertion in the contralateral ventricle. An additional cause for difficulty with just recognizing the existence of these ...
... pathways without injuring the AV node. Furthermore, because this is a true septum, it becomes possible for pathways to have their atrial insertion in 1 atrium and the ventricular insertion in the contralateral ventricle. An additional cause for difficulty with just recognizing the existence of these ...
Development of left/right handedness in the chick heart
... The cultures were incubated for a further 24-36 hours at 37°C and 5% CO2. Cultures were fixed in 1/2 strength Karnovsky’s (1965) solution for 4-12 hours, washed in distilled water, stained with Anthracene blue for whole mounts, photographed and assessed. The embryos were then dehydrated and embedded ...
... The cultures were incubated for a further 24-36 hours at 37°C and 5% CO2. Cultures were fixed in 1/2 strength Karnovsky’s (1965) solution for 4-12 hours, washed in distilled water, stained with Anthracene blue for whole mounts, photographed and assessed. The embryos were then dehydrated and embedded ...
Document
... normal values were obtained from healthy volunteers Baroreflex function, HR variability and blood pressure variability in patients early after coronary surgery ...
... normal values were obtained from healthy volunteers Baroreflex function, HR variability and blood pressure variability in patients early after coronary surgery ...
ECG-gated multidetector-row computed tomography in the
... assessment of left ventricular function An accurate quantitative and qualitative assessment of cardiac function is critical for clinical diagnosis, risk stratification, management and prognosis in patients with suspected or documented heart disease. Magnetic resonance, owing to its excellent tempora ...
... assessment of left ventricular function An accurate quantitative and qualitative assessment of cardiac function is critical for clinical diagnosis, risk stratification, management and prognosis in patients with suspected or documented heart disease. Magnetic resonance, owing to its excellent tempora ...
Philips` kt BLAST enables one-breathhold global
... In the last several months, physicians at Texas Heart Institute at St. Luke’s Episcopal Hospital have been seeking to determine if k-t BLAST can result in more efficient cardiac function studies that are also easier for patients to comply with. The key is acquisition speed. k-t BLAST (k-t space Broa ...
... In the last several months, physicians at Texas Heart Institute at St. Luke’s Episcopal Hospital have been seeking to determine if k-t BLAST can result in more efficient cardiac function studies that are also easier for patients to comply with. The key is acquisition speed. k-t BLAST (k-t space Broa ...
- Carolina Digital Repository
... increases, exceeds aortic pressure and the aortic valve opens, ejection occurs, LV volume drops and the aortic valve closes (Otto, 2004). LV systolic function is best described by contraction and is affected by heart rate, preload and afterload (Otto, 2004). Optimal performance of the LV is depende ...
... increases, exceeds aortic pressure and the aortic valve opens, ejection occurs, LV volume drops and the aortic valve closes (Otto, 2004). LV systolic function is best described by contraction and is affected by heart rate, preload and afterload (Otto, 2004). Optimal performance of the LV is depende ...
Harms and benefits of screening young people to prevent sudden
... positive response on a questionnaire with heart health questions. After review by a physician, 421/1339 (31.4%) had at least one relevant response that required additional cardiac evaluation.22 Electrocardiography will pick up only some of the possible causes of signs and symptoms. For example, the ...
... positive response on a questionnaire with heart health questions. After review by a physician, 421/1339 (31.4%) had at least one relevant response that required additional cardiac evaluation.22 Electrocardiography will pick up only some of the possible causes of signs and symptoms. For example, the ...
Chronic stable angina: Addressing the needs of patients through risk
... atherosclerosis should take daily aspirin (antithrombic agents) to reduce the risk of thrombus formation.1 Beta-blockers, that decrease myocardial oxygen demand, are the drug of choice for managing ischemic cardiac disease.1,9 Calcium channel blockers reduce peripheral vascular resistance and thus l ...
... atherosclerosis should take daily aspirin (antithrombic agents) to reduce the risk of thrombus formation.1 Beta-blockers, that decrease myocardial oxygen demand, are the drug of choice for managing ischemic cardiac disease.1,9 Calcium channel blockers reduce peripheral vascular resistance and thus l ...
morphometric study of the right coronary artery
... in only 25% of cases does the PDA reach the apex and in another 25%, it reaches only the midpoint between the apex and the base. The present study revealed that the conus artery originates at a distance of 1.5±0.6 cm from the beginning of RCA. In one specimen (3.3%) the right conus artery was found ...
... in only 25% of cases does the PDA reach the apex and in another 25%, it reaches only the midpoint between the apex and the base. The present study revealed that the conus artery originates at a distance of 1.5±0.6 cm from the beginning of RCA. In one specimen (3.3%) the right conus artery was found ...
Balloon Pulmonary Valvuloplasty in Adults with Congenital Valvular
... the pulmonary valve site. Single-balloon technique was performed in 4 patients (including 1 case with Inoue balloon) via unilateral femoral vein, with the balloon sized about 1.3 times the annulus diameter. Double-balloon technique was performed in 8 patients via bilateral femoral vein with each bal ...
... the pulmonary valve site. Single-balloon technique was performed in 4 patients (including 1 case with Inoue balloon) via unilateral femoral vein, with the balloon sized about 1.3 times the annulus diameter. Double-balloon technique was performed in 8 patients via bilateral femoral vein with each bal ...
Document
... The arterial smooth muscle cell is important in (1) the control of artery wall tone, (2) maintenance and repair, (3) the metabolism of various blood-borne substances, including lipids, and (4) the secretion of ! various cytokines. The mononuclear phagocyte has many functions, including the uptake of ...
... The arterial smooth muscle cell is important in (1) the control of artery wall tone, (2) maintenance and repair, (3) the metabolism of various blood-borne substances, including lipids, and (4) the secretion of ! various cytokines. The mononuclear phagocyte has many functions, including the uptake of ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.