Reference left atrial dimensions and volumes by steady state free
... precession (SSFP) cine sequences. We used SSFP cines to define normal ranges for LA volumes and dimensions relative to gender, age and body surface area (BSA), and examine the relative value of 2D atrial imaging techniques in patients. For definition of normal ranges of LA volume we studied 120 heal ...
... precession (SSFP) cine sequences. We used SSFP cines to define normal ranges for LA volumes and dimensions relative to gender, age and body surface area (BSA), and examine the relative value of 2D atrial imaging techniques in patients. For definition of normal ranges of LA volume we studied 120 heal ...
Print - Circulation
... which each pulmonary artery arises from the lateral aspect of the truncus. Type II has been considered among the conditions manifesting confluence. In type III, on the other hand, the distance between the pulmonary arterial origins serves to favor considering this form of persistent truncus arterios ...
... which each pulmonary artery arises from the lateral aspect of the truncus. Type II has been considered among the conditions manifesting confluence. In type III, on the other hand, the distance between the pulmonary arterial origins serves to favor considering this form of persistent truncus arterios ...
Acute Effects of Cardiac Glycosides on Aldosterone Secretion in
... artery reconstruction. During- each acute experiment, the arterial pressure was measured with a Stathnm strain gauge atta.ehed to an indwelling abdominal aortic catheter and was recorded continuously on a Sanborn apparatus. Right atrial pressure was determined by an indwelling polyethylene catheter ...
... artery reconstruction. During- each acute experiment, the arterial pressure was measured with a Stathnm strain gauge atta.ehed to an indwelling abdominal aortic catheter and was recorded continuously on a Sanborn apparatus. Right atrial pressure was determined by an indwelling polyethylene catheter ...
diastolic-murmurs
... left atrial pressure increases with a gradient between left atrium and left ventricle in diastole. The opening snap result from abrupt opening of the doming mitrale valve. As the atrial contraction contributes to increased gradient in pre systole, there is pre systolic accentuation of murmur ...
... left atrial pressure increases with a gradient between left atrium and left ventricle in diastole. The opening snap result from abrupt opening of the doming mitrale valve. As the atrial contraction contributes to increased gradient in pre systole, there is pre systolic accentuation of murmur ...
Ventricular myocarditis coincides with atrial myocarditis - UvA-DARE
... The use of patient material as described in this article is approved by the medical ethics committee of the VU Medical Center (VUmc), Amsterdam, the Netherlands, in concordance with the guidelines established by the World Medical Association (Declaration of Helsinki). Human hear ...
... The use of patient material as described in this article is approved by the medical ethics committee of the VU Medical Center (VUmc), Amsterdam, the Netherlands, in concordance with the guidelines established by the World Medical Association (Declaration of Helsinki). Human hear ...
Inspection of Neck Veins - Turner White Communications
... and right ventricle. However, elevated left-sided heart pressures are transmitted through the pulmonary circulation and right ventricle.9 Thus, an analysis of jugular venous pressure and CVP can aid a clinician in identifying disorders of the left side of the heart as well. In general, elevated jugu ...
... and right ventricle. However, elevated left-sided heart pressures are transmitted through the pulmonary circulation and right ventricle.9 Thus, an analysis of jugular venous pressure and CVP can aid a clinician in identifying disorders of the left side of the heart as well. In general, elevated jugu ...
CLINICAL REVIEW Management of atrial fibrillation
... important to know? Atrial fibrillation is characterised by a chaotic electrical activity in the atria that induces an irregular and usually rapid contraction of the ventricles (figure 1). Patients may be asymptomatic; may have mild symptoms, such as palpitations, weariness, and reduced effort capacit ...
... important to know? Atrial fibrillation is characterised by a chaotic electrical activity in the atria that induces an irregular and usually rapid contraction of the ventricles (figure 1). Patients may be asymptomatic; may have mild symptoms, such as palpitations, weariness, and reduced effort capacit ...
Importance of Atrial Flutter Isthmus in Postoperative Intra
... IART, multiple radiofrequency lesions were made in an effort to create a complete line of block in this isthmus. The targeted temperature was 60°C for 30 to 60 seconds for each lesion. Each lesion was placed individually, after which the catheter was moved by 2 to 3 mm and another lesion was placed. ...
... IART, multiple radiofrequency lesions were made in an effort to create a complete line of block in this isthmus. The targeted temperature was 60°C for 30 to 60 seconds for each lesion. Each lesion was placed individually, after which the catheter was moved by 2 to 3 mm and another lesion was placed. ...
Modeling left ventricular diastolic dysfunction: classification and key
... In these equations ex(t) is the dimensionless weight or “activation function,” denoting myocardial activation as between 0 and 1, where x = LVF, RVF, or SPT. Ventricular mechanics is described by separate mechanical and temporal behavior - mechanical behavior by static free wall pressure-volume char ...
... In these equations ex(t) is the dimensionless weight or “activation function,” denoting myocardial activation as between 0 and 1, where x = LVF, RVF, or SPT. Ventricular mechanics is described by separate mechanical and temporal behavior - mechanical behavior by static free wall pressure-volume char ...
Left Atrial Appendage Closure Devices for
... groups. Patients receiving the WATCHMAN™ device underwent more intensive surveillance for thrombosis after device implantation, and continued anticoagulation if concerns about thrombosis arose. Although this was part of the treatment protocol, it makes determinations of efficacy less certain, becaus ...
... groups. Patients receiving the WATCHMAN™ device underwent more intensive surveillance for thrombosis after device implantation, and continued anticoagulation if concerns about thrombosis arose. Although this was part of the treatment protocol, it makes determinations of efficacy less certain, becaus ...
Intracardiac Flow Patterns in Early Embryonic Life
... In another group of 22 embryos, all at H-H stages 1718, the studies were performed in the left lateral position. After exposure through the same shell window, the embryo was gently turned left side up with forceps, after removing the chorion and amnion. The dye solution then was injected into the sa ...
... In another group of 22 embryos, all at H-H stages 1718, the studies were performed in the left lateral position. After exposure through the same shell window, the embryo was gently turned left side up with forceps, after removing the chorion and amnion. The dye solution then was injected into the sa ...
Surgery for Atrial Fibrillation
... patients with atrial fibrillation associated with structural heart disease who undergo cardiac surgical procedures, high-risk patients for systemic thromboembolic complications related to left atrial thrombi, patients with failure or recurrence following one or more sessions of catheter ablation, an ...
... patients with atrial fibrillation associated with structural heart disease who undergo cardiac surgical procedures, high-risk patients for systemic thromboembolic complications related to left atrial thrombi, patients with failure or recurrence following one or more sessions of catheter ablation, an ...
Arteries
... The superior and inferior vena cavae bring blood from the body to the right atrium. ...
... The superior and inferior vena cavae bring blood from the body to the right atrium. ...
THE REGULATION OF THE PULMONARY CIRCULATION In 1903
... studied by two methods: Wiggers (67), (71) devised and used an apparatus by which the flow of blood from a peripheral end of a pulmonary vein or the flow from a cut in the lung itself can be continuously recorded. The chief objection to the method is, of course, the progressive loss of blood-but, if ...
... studied by two methods: Wiggers (67), (71) devised and used an apparatus by which the flow of blood from a peripheral end of a pulmonary vein or the flow from a cut in the lung itself can be continuously recorded. The chief objection to the method is, of course, the progressive loss of blood-but, if ...
full articles - pdf - People`s Journal Of Scientific Research
... of chorion & / or yolk sac causing failure of midline fusion, amniotic band syndrome (Dobell et al, 1982; VanAllen & Myhre, 1985). The majority of ectopia cordis patients have associated intracardiac defects. Ventricular septal defect, atrial septal defect, tetralogy of Fallot, and diverticulum of t ...
... of chorion & / or yolk sac causing failure of midline fusion, amniotic band syndrome (Dobell et al, 1982; VanAllen & Myhre, 1985). The majority of ectopia cordis patients have associated intracardiac defects. Ventricular septal defect, atrial septal defect, tetralogy of Fallot, and diverticulum of t ...
Hemodynamic Monitoring in the CCU
... • In patients with normal pulmonary artery vascular resistance and no mitral valve obstruction the pulmonary artery diastolic pressure is very close (2-4 mm Hg) to both the mean wedge pressure and to the left ventricular end diastolic pressure. • When the pulmonary artery diastolic pressure exceeds ...
... • In patients with normal pulmonary artery vascular resistance and no mitral valve obstruction the pulmonary artery diastolic pressure is very close (2-4 mm Hg) to both the mean wedge pressure and to the left ventricular end diastolic pressure. • When the pulmonary artery diastolic pressure exceeds ...
Hemodynamic Monitoring in the CCU
... • This arrhythmia is due to enhanced atrial automaticity. The atrial rate is usually less than 200 beats per minute and generates rapid regular A waves in the atrial pressure waveform. • It is common to observe 2:1 nodal block. • In this circumstance, the blocked P wave usually occurs within the QRS ...
... • This arrhythmia is due to enhanced atrial automaticity. The atrial rate is usually less than 200 beats per minute and generates rapid regular A waves in the atrial pressure waveform. • It is common to observe 2:1 nodal block. • In this circumstance, the blocked P wave usually occurs within the QRS ...
Atrial Fibrillation In Heart Failure
... fibrillation vs non-AF related strokes is estimated at €11,799 per stroke admission vs €8,817.18 This is presumed to be due to the fact that strokes that occur in AF are more severe than those which occur in sinus rhythm.19 Because of the large costs involved in treating the vascular complications o ...
... fibrillation vs non-AF related strokes is estimated at €11,799 per stroke admission vs €8,817.18 This is presumed to be due to the fact that strokes that occur in AF are more severe than those which occur in sinus rhythm.19 Because of the large costs involved in treating the vascular complications o ...
Spotlight on atrial fibrillation—the `complete arrhythmia`
... become a safe and definitive approach for the treatment of AV node reentrant and circus movement tachycardias, as well as for most cases of atrial flutter. Malignant ventricular tachyarrhythmias were effectively dealt with by implantable cardioverter-defibrillators. However, safe and highly-effectiv ...
... become a safe and definitive approach for the treatment of AV node reentrant and circus movement tachycardias, as well as for most cases of atrial flutter. Malignant ventricular tachyarrhythmias were effectively dealt with by implantable cardioverter-defibrillators. However, safe and highly-effectiv ...
Pharmacologic and Non-Pharmacologic Treatment of Chronic Atrial
... moderate exercise) versus lenient (resting heart rate 110 bpm) rate control were addressed in the RACE II trial of patients with permanent AF29. The RACE II study shows that lenientrate control <110 bpm is not inferior to strict-rate control <80 bpm. As lenient-rate control is generally more conveni ...
... moderate exercise) versus lenient (resting heart rate 110 bpm) rate control were addressed in the RACE II trial of patients with permanent AF29. The RACE II study shows that lenientrate control <110 bpm is not inferior to strict-rate control <80 bpm. As lenient-rate control is generally more conveni ...
PDF - Circulation: Arrhythmia and Electrophysiology
... (RBB) has a longer septal course toward apex before it exits at the base of anterior papillary muscle, where it divides into 2 divisions, entering moderator band and right ventricular (RV) endocardium (large asterisks). The course of activation during tachycardia in right and left bundle-branches is ...
... (RBB) has a longer septal course toward apex before it exits at the base of anterior papillary muscle, where it divides into 2 divisions, entering moderator band and right ventricular (RV) endocardium (large asterisks). The course of activation during tachycardia in right and left bundle-branches is ...
The Anatomy of the Atrioventricular Conduction System
... by Grant and associates2' to occur in preexcitation syndrome. In regard to Grant's hypothesis, however, our findings indicated that the impulse may not reach the left bundle branch earlier because of an anomalous route of excitation as has been suggested to occur in pre-excitation, but rather becaus ...
... by Grant and associates2' to occur in preexcitation syndrome. In regard to Grant's hypothesis, however, our findings indicated that the impulse may not reach the left bundle branch earlier because of an anomalous route of excitation as has been suggested to occur in pre-excitation, but rather becaus ...
Measurement of right ventricular volume in healthy term and preterm
... has a larger cardiac output, receives more of the venous return, and has a larger volume than the left ventricle.1–4 After birth, the left ventricle enlarges,5 and left ventricular output exceeds right ventricular output6 7 until closure of the ductus arteriosus.7 Corresponding changes in right vent ...
... has a larger cardiac output, receives more of the venous return, and has a larger volume than the left ventricle.1–4 After birth, the left ventricle enlarges,5 and left ventricular output exceeds right ventricular output6 7 until closure of the ductus arteriosus.7 Corresponding changes in right vent ...
No Slide Title
... All patients with significant coarctation (native or re-coarctation post-repair) should be considered candidates for treatment (Level of Evidence: C) For significant native aortic coarctation, a surgical or a percutaneous approach (if the anatomy is suitable) is reasonable. The preferred approac ...
... All patients with significant coarctation (native or re-coarctation post-repair) should be considered candidates for treatment (Level of Evidence: C) For significant native aortic coarctation, a surgical or a percutaneous approach (if the anatomy is suitable) is reasonable. The preferred approac ...
Biventricular and atrial diastolic function assessment using
... cardiac function. All participants were in sinus rhythm and demonstrated no abnormalities on a 12 lead surface ECG. A full clinical and echocardiographic examination was performed on each subject. No subjects had more than mild valvular disease. Twenty-two of the MFS patients were on b-blockade medi ...
... cardiac function. All participants were in sinus rhythm and demonstrated no abnormalities on a 12 lead surface ECG. A full clinical and echocardiographic examination was performed on each subject. No subjects had more than mild valvular disease. Twenty-two of the MFS patients were on b-blockade medi ...
Atrial septal defect
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small.A ""shunt"" is the presence of a net flow of blood through the defect, either from left to right or right to left. The amount of shunting present, if any, determines the hemodynamic significance of the ASD. A ""right-to-left-shunt"" typically poses the more dangerous scenario.During development of the fetus, the interatrial septum develops to separate the left and right atria. However, a hole in the septum called the foramen ovale, allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A layer of tissue called the septum primum acts as a valve over the foramen ovale during fetal development. After birth, the pressure in the right side of the heart drops as the lungs open and begin working, causing the foramen ovale to close entirely. In approximately 25% of adults, the foramen ovale does not entirely seal. In these cases, any elevation of the pressure in the pulmonary circulatory system (due to pulmonary hypertension, temporarily while coughing, etc.) can cause the foramen ovale to remain open. This is known as a patent foramen ovale (PFO), which is a type of atrial septal defect.