Cardiac Pumping and the Function of Ventricular
... right ventricle being thinner than those of the left. He also had quite a clear conception of the lifting of the tricuspid‐ and mitral cusps as the mechanism for their closure. The 1970's saw a renewed interest in basic problems of heart physiology ‐ an interest which subsided again in about 198 ...
... right ventricle being thinner than those of the left. He also had quite a clear conception of the lifting of the tricuspid‐ and mitral cusps as the mechanism for their closure. The 1970's saw a renewed interest in basic problems of heart physiology ‐ an interest which subsided again in about 198 ...
Impact of Atrioventricular Compliance on Pulmonary Artery Pressure
... net AV compliance (Cn). We have observed a group of symptomatic patients, usually in sinus rhythm, characterized by pulmonary hypertension (particularly during exercise) despite a relatively large mitral valve area by pressure half-time. We speculated that this discrepancy was due to low atrial comp ...
... net AV compliance (Cn). We have observed a group of symptomatic patients, usually in sinus rhythm, characterized by pulmonary hypertension (particularly during exercise) despite a relatively large mitral valve area by pressure half-time. We speculated that this discrepancy was due to low atrial comp ...
AORTIC VALVE STENOSIS: FROM FORMULA TO GUIDELINE
... identified a jet velocity > 4.0 m/s at entry as a strong significant predictor for poor event-free survival without valve replacement at 2 years (21±18%) in comparison to a jet velocity below 4 m/s (3). This cut-off was confirmed by Pellikka et al. (4) in 2005 after multivariate analysis and was an ...
... identified a jet velocity > 4.0 m/s at entry as a strong significant predictor for poor event-free survival without valve replacement at 2 years (21±18%) in comparison to a jet velocity below 4 m/s (3). This cut-off was confirmed by Pellikka et al. (4) in 2005 after multivariate analysis and was an ...
infective endocarditis at bicuspid aortic valve complicated with
... to control progressive heart failure. On the other hand, if valve replacement is selected first, cardiopulmonary bypass with systemic heparinization could cause lethal neurologic deficits.18 Some patients with infective endocarditis require both cardiac valve replacement and intracranial infective a ...
... to control progressive heart failure. On the other hand, if valve replacement is selected first, cardiopulmonary bypass with systemic heparinization could cause lethal neurologic deficits.18 Some patients with infective endocarditis require both cardiac valve replacement and intracranial infective a ...
* Valvular and Structural Heart Disease
... This chapter about antithrombotic therapy for valvular heart disease is part of the American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Grade 1 recommendations are strong and indicate that the benefits do, or do not, outweigh risks, burden, and costs. Grad ...
... This chapter about antithrombotic therapy for valvular heart disease is part of the American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Grade 1 recommendations are strong and indicate that the benefits do, or do not, outweigh risks, burden, and costs. Grad ...
Guidelines on the management of valvular heart disease (version 2012)
... & The European Society of Cardiology 2012. All rights reserved. For permissions please email: [email protected] ...
... & The European Society of Cardiology 2012. All rights reserved. For permissions please email: [email protected] ...
Valvular And Structural Heart Disease
... This chapter about antithrombotic therapy for valvular heart disease is part of the American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Grade 1 recommendations are strong and indicate that the benefits do, or do not, outweigh risks, burden, and costs. Grad ...
... This chapter about antithrombotic therapy for valvular heart disease is part of the American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition). Grade 1 recommendations are strong and indicate that the benefits do, or do not, outweigh risks, burden, and costs. Grad ...
Aortic Valve and Ascending Aorta Guidelines for Management and
... area, and energy loss); (3) durability, measured as freedom from structural valve deterioration; (4) event-free survival; and (5) ease of procedure. For aortic valve procedures to be accepted into general practice, however, by interventional cardiologists and surgeons, the sequence of steps would en ...
... area, and energy loss); (3) durability, measured as freedom from structural valve deterioration; (4) event-free survival; and (5) ease of procedure. For aortic valve procedures to be accepted into general practice, however, by interventional cardiologists and surgeons, the sequence of steps would en ...
Three-dimensional evaluation of the mitral valve area
... 2D measurements were considered and because RT3DE ‘only’ offers the opportunity to perform a well-oriented planimetry, its superiority for experienced operators can be questioned. In contrast, RT3DE may be particularly helpful for less experienced operators but this has not been clearly evaluated. W ...
... 2D measurements were considered and because RT3DE ‘only’ offers the opportunity to perform a well-oriented planimetry, its superiority for experienced operators can be questioned. In contrast, RT3DE may be particularly helpful for less experienced operators but this has not been clearly evaluated. W ...
3D anatomical modelling of the human cardiac conduction system
... 3) KCa1.1 appears to be more highly expressed in the sinus node than atrial muscle at both the mRNA and protein level. Discussion. This study demonstrates that it is possible to create a 3D anatomical reconstruction of the human heart based on serial sections of the entire human heart. This 3D compu ...
... 3) KCa1.1 appears to be more highly expressed in the sinus node than atrial muscle at both the mRNA and protein level. Discussion. This study demonstrates that it is possible to create a 3D anatomical reconstruction of the human heart based on serial sections of the entire human heart. This 3D compu ...
Balloon aortic valvuloplasty: review of the evidence and current
... (the afterload) rather than eject normal blood volumes. Yet, if the stenosis is corrected (i.e., by aortic valve replacement [AVR]) then the LV would be expected to return to normal. Echocardiographic criteria for aortic stenosis severity with normal LV systolic function are shown in Table 1. ...
... (the afterload) rather than eject normal blood volumes. Yet, if the stenosis is corrected (i.e., by aortic valve replacement [AVR]) then the LV would be expected to return to normal. Echocardiographic criteria for aortic stenosis severity with normal LV systolic function are shown in Table 1. ...
Chapter 9 The Cardiovascular System
... RCA ends in its posterior descending (RPD) branch, which courses between right and left ventricles. Provides blood flow to most of right ventricle and right atrium, including sinus node ...
... RCA ends in its posterior descending (RPD) branch, which courses between right and left ventricles. Provides blood flow to most of right ventricle and right atrium, including sinus node ...
Treatment and management of mitral regurgitation
... in patients with severe degenerative MR, who are sympto matic, and in asymptomatic patients with severe degenerative MR with initial signs of LV dysfunction, defined as an end systolic diameter ≥40 mm (ACC/AHA 2006 guidelines)7 or ≥45 mm (ESC 2007 guidelines),8 a LV ejection fraction <60% (class IB ...
... in patients with severe degenerative MR, who are sympto matic, and in asymptomatic patients with severe degenerative MR with initial signs of LV dysfunction, defined as an end systolic diameter ≥40 mm (ACC/AHA 2006 guidelines)7 or ≥45 mm (ESC 2007 guidelines),8 a LV ejection fraction <60% (class IB ...
EGANSChapter_09
... RCA ends in its posterior descending (RPD) branch, which courses between right and left ventricles. Provides blood flow to most of right ventricle and right atrium, including sinus node ...
... RCA ends in its posterior descending (RPD) branch, which courses between right and left ventricles. Provides blood flow to most of right ventricle and right atrium, including sinus node ...
12 Heart Chapter Outline and Objectives
... eople often refer to the heart as if it were the seat of certain strong emotions. A very determined person may be described as having “a lot of heart,” and a person who has been disappointed romantically can be described as having a “broken heart.” A popular holiday in February not only dramatically ...
... eople often refer to the heart as if it were the seat of certain strong emotions. A very determined person may be described as having “a lot of heart,” and a person who has been disappointed romantically can be described as having a “broken heart.” A popular holiday in February not only dramatically ...
Chapter 9
... 33. Blood exits the right ventricle through the pulmonic valve. A) True B) False Ans: A 34. The first heart sound is due to the opening of the tricuspid and bicuspid valves. A) True B) False Ans: B 35. The heart contracts during systole. A) True B) False Ans: A 36. Arteries carry blood away from the ...
... 33. Blood exits the right ventricle through the pulmonic valve. A) True B) False Ans: A 34. The first heart sound is due to the opening of the tricuspid and bicuspid valves. A) True B) False Ans: B 35. The heart contracts during systole. A) True B) False Ans: A 36. Arteries carry blood away from the ...
Immediate Outcomes and Long-Term Follow-Up
... nil (0.79%). It is possible that with larger diameter balloons a greater success could have been obtained. However, as indicated by Inoue, balloons were selected according to the patient’s size, and by controlling MR outcome and degree the selected diameter or a larger one was reached. This could ju ...
... nil (0.79%). It is possible that with larger diameter balloons a greater success could have been obtained. However, as indicated by Inoue, balloons were selected according to the patient’s size, and by controlling MR outcome and degree the selected diameter or a larger one was reached. This could ju ...
Fig. 11 - JACC: Cardiovascular Imaging
... valve leaflets, which are attached throughout the length of the aortic root. The aortic valve annulus typically represents the tightest part of the aortic root and is defined as a virtual ring with 3 anatomical anchor points at the base of each of the attachments of the aortic leaflets (Fig. 1). The ...
... valve leaflets, which are attached throughout the length of the aortic root. The aortic valve annulus typically represents the tightest part of the aortic root and is defined as a virtual ring with 3 anatomical anchor points at the base of each of the attachments of the aortic leaflets (Fig. 1). The ...
LWW PPT Slide Template Master
... A band of fibers that transmits impulses from the atrioventricular (AV) node to the top of the interventricular septum. It divides into the right and left bundle branches, which descend along the two sides of the septum; the bundle of His. ...
... A band of fibers that transmits impulses from the atrioventricular (AV) node to the top of the interventricular septum. It divides into the right and left bundle branches, which descend along the two sides of the septum; the bundle of His. ...
The Heart
... and cannot meet their metabolic need for ATP by using anaerobic pathways, which have low yields of ATP/glucose. Because of the brain’s sensitivity to hypoxia {hypo-, low + oxia, oxygen}, homeostatic controls do everything possible to maintain cerebral blood flow, even if it means depriving other cel ...
... and cannot meet their metabolic need for ATP by using anaerobic pathways, which have low yields of ATP/glucose. Because of the brain’s sensitivity to hypoxia {hypo-, low + oxia, oxygen}, homeostatic controls do everything possible to maintain cerebral blood flow, even if it means depriving other cel ...
Multimodality Imaging Strategies for the Assessment of Aortic Stenosis
... LF-LG AS has the worst prognosis and those with NF-LG AS has the best prognosis.4,7,14 Furthermore, AVR improves outcomes in both patients with HG AS and those with paradoxical LF-LG AS. In patients with NF-LG AS, previous studies have yielded conflicting results on the effect of AVR on outcomes. Th ...
... LF-LG AS has the worst prognosis and those with NF-LG AS has the best prognosis.4,7,14 Furthermore, AVR improves outcomes in both patients with HG AS and those with paradoxical LF-LG AS. In patients with NF-LG AS, previous studies have yielded conflicting results on the effect of AVR on outcomes. Th ...
Redalyc.Treatment of Chronic Atrial Fibrillation During Surgery for
... association with mitral valve management[12]. Developed over 10 years, the Maze operation is still considered the reference method for the surgical treatment of atrial fibrillation. However, the routine use of this surgery is limited to a few centers, given its complexity. Several studies have shown ...
... association with mitral valve management[12]. Developed over 10 years, the Maze operation is still considered the reference method for the surgical treatment of atrial fibrillation. However, the routine use of this surgery is limited to a few centers, given its complexity. Several studies have shown ...
Artificial heart valve
An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.