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Left main bronchus compression due to main pulmonary artery
... While uncommon, tracheobronchial compression due to pulmonary arterial dilatation is a well-known complication in infants with complex congenital heart disease and vascular rings.6 In absent pulmonary valve syndrome, significant symptoms in early infancy are commonly due to bronchial compression from ...
... While uncommon, tracheobronchial compression due to pulmonary arterial dilatation is a well-known complication in infants with complex congenital heart disease and vascular rings.6 In absent pulmonary valve syndrome, significant symptoms in early infancy are commonly due to bronchial compression from ...
Transcript
... To go over the first, I think one of the most traditionally recognized targets, is block of the renin angiotensin system with ACE inhibitors and ARBs. And, this is just a slide reviewing a number of trials, heart failure, hypertension, arrhythmia trials in which the risk of developing atrial fibril ...
... To go over the first, I think one of the most traditionally recognized targets, is block of the renin angiotensin system with ACE inhibitors and ARBs. And, this is just a slide reviewing a number of trials, heart failure, hypertension, arrhythmia trials in which the risk of developing atrial fibril ...
Untitled - Journal of Postgraduate Medical Institute
... standard echocardiographic parameters including E/A velocity ratio, e’, DT and mitral E/e’ ratio. Diastolic function was graded as normal, abnormal relaxation (Grade I), pseudonormal (Grade II), and restrictive (Grade III). Pseudonormal (Grade II) was differentiated from normal by having (i) PV atri ...
... standard echocardiographic parameters including E/A velocity ratio, e’, DT and mitral E/e’ ratio. Diastolic function was graded as normal, abnormal relaxation (Grade I), pseudonormal (Grade II), and restrictive (Grade III). Pseudonormal (Grade II) was differentiated from normal by having (i) PV atri ...
A noninvasive algorithm to exclude pre-capillary pulmonary hypertension
... whether TTE, clinical and ECG variables allowed discrimination between pre-capillary PH and no pre-capillary PH. Stepwise selection (forward search) within the three groups (TTE, clinical and ECG variables) yielded partially independent variable sets. The clinical and the ECG variable sets were used ...
... whether TTE, clinical and ECG variables allowed discrimination between pre-capillary PH and no pre-capillary PH. Stepwise selection (forward search) within the three groups (TTE, clinical and ECG variables) yielded partially independent variable sets. The clinical and the ECG variable sets were used ...
Tetralogy of Fallot | SpringerLink
... phenylketonuria, and intake of retinoic acid. Associated chromosomal anomalies can include trisomies 21, 18, and 13, but recent experience points to the much more frequent association of microdeletions of chromosome 22. The risk of recurrence in families is 3%. Useful diagnostic tests are the chest ...
... phenylketonuria, and intake of retinoic acid. Associated chromosomal anomalies can include trisomies 21, 18, and 13, but recent experience points to the much more frequent association of microdeletions of chromosome 22. The risk of recurrence in families is 3%. Useful diagnostic tests are the chest ...
Pulmonary Petechiae: Ventilatory-Circulatory Interactions
... (left atrial) pressure (4). If rises in left atrial pressures were sufficiently large, damage to pulmonary blood vessels could occur with resulting petechial formation. The applicable mechanisms can be inferred from a recent summary by Bromberger-Barnea (3): (1) when the airway is obstructed, inspir ...
... (left atrial) pressure (4). If rises in left atrial pressures were sufficiently large, damage to pulmonary blood vessels could occur with resulting petechial formation. The applicable mechanisms can be inferred from a recent summary by Bromberger-Barnea (3): (1) when the airway is obstructed, inspir ...
Origin of the Right Pulmonary Artery from the Ascending Aorta
... teriosus, and the descending aorta. The right pulmonary artery, however, did not fill (fig. 5). Following the injection into the left atrium a normal left atrium and ventricle with intact septa were noted. There was simultaneous opacification of the ascending aorta and the right pulmonary artery and ...
... teriosus, and the descending aorta. The right pulmonary artery, however, did not fill (fig. 5). Following the injection into the left atrium a normal left atrium and ventricle with intact septa were noted. There was simultaneous opacification of the ascending aorta and the right pulmonary artery and ...
Left Atrial Appendage: Useless or Priceless?
... the concentration of coagulation factors tends to increase when blood flow is reduced and the blood is not regularly “cleaned up” by passing through the liver. The Virginia researchers also observed a very strong inverse correlation between heart rate during atrial fibrillation and LAA ejection frac ...
... the concentration of coagulation factors tends to increase when blood flow is reduced and the blood is not regularly “cleaned up” by passing through the liver. The Virginia researchers also observed a very strong inverse correlation between heart rate during atrial fibrillation and LAA ejection frac ...
Intracardiac flow separation in Python
... opened by a ventral incision. The left atrium was accessed through the common pulmonary vein that drains both lungs, whereas the right atrium was accessed through the hepatic vein; all other systemic veins were ligated. Both the right aortic arch (RAo) and the left aortic arch (LAo) were cannulated, ...
... opened by a ventral incision. The left atrium was accessed through the common pulmonary vein that drains both lungs, whereas the right atrium was accessed through the hepatic vein; all other systemic veins were ligated. Both the right aortic arch (RAo) and the left aortic arch (LAo) were cannulated, ...
ATRIAL FIBRILLATION DECISION AID
... Atrial fibrillation is an abnormal heart rhythm during which the upper or filling chambers of the heart beat irregularly. Normally the pacemaker of the heart generates an electrical impulse, which is conducted or carried to the lower or pumping chambers of the heart via the electrical conducting tis ...
... Atrial fibrillation is an abnormal heart rhythm during which the upper or filling chambers of the heart beat irregularly. Normally the pacemaker of the heart generates an electrical impulse, which is conducted or carried to the lower or pumping chambers of the heart via the electrical conducting tis ...
Assessment of shunt volumes in children with ventricular septal
... shunt volume with a pulmonary to systemic flow ratio of above 1.5 to 2.0 [9]. The major drawback of invasive shunt quantification can be attributed to several risks involving the invasiveness of the catheter procedure [25] and the radiation exposure [17]. In addition, some patients may experience a ...
... shunt volume with a pulmonary to systemic flow ratio of above 1.5 to 2.0 [9]. The major drawback of invasive shunt quantification can be attributed to several risks involving the invasiveness of the catheter procedure [25] and the radiation exposure [17]. In addition, some patients may experience a ...
Hemodynamics after Surgical Repair with Right Ventricle to
... flow was abnormally low in two. A murmur of pulmonary insufficiency was not detected in any of the patients. All four patients had congestive heart failure and two patients had arrhythmias. Table 3 summarizes the hemodynamic results of postoperative cardiac catheterization in the 12 patients with da ...
... flow was abnormally low in two. A murmur of pulmonary insufficiency was not detected in any of the patients. All four patients had congestive heart failure and two patients had arrhythmias. Table 3 summarizes the hemodynamic results of postoperative cardiac catheterization in the 12 patients with da ...
Catheter closure of paravalvular leak
... Aims: The purpose of this study was to evaluate the feasibility and short-term efficacy of transcatheter paravalvular leak closure using different occlusion devices. Methods and results: Twenty-one patients underwent transcatheter closure of either aortic or mitral paravalvular leak from June 2002 t ...
... Aims: The purpose of this study was to evaluate the feasibility and short-term efficacy of transcatheter paravalvular leak closure using different occlusion devices. Methods and results: Twenty-one patients underwent transcatheter closure of either aortic or mitral paravalvular leak from June 2002 t ...
Leiomyosarcoma of the Inferior Vena Cava - Heart
... other hand, metastatic tumours of the heart are In our case the diagnosis was made too late, but more common. These are usually mural and not if it had been made at an earlier stage, an operation intracavitary. (Cope and Hunt, 1954) could have been attempted. Leiomyosarcoma is a slow growing tumour ...
... other hand, metastatic tumours of the heart are In our case the diagnosis was made too late, but more common. These are usually mural and not if it had been made at an earlier stage, an operation intracavitary. (Cope and Hunt, 1954) could have been attempted. Leiomyosarcoma is a slow growing tumour ...
The Pathophysiology Of Pulmonary Hypertension
... increase in pulmonary venous pressure, stresses, such as exercise, excitement, fever, and pregnancy, impose an added burden, which may result in pulmonary edema. The common factor in these stress situations is tachycardia, which reduces the ventricular filling time and causes a further elevation in ...
... increase in pulmonary venous pressure, stresses, such as exercise, excitement, fever, and pregnancy, impose an added burden, which may result in pulmonary edema. The common factor in these stress situations is tachycardia, which reduces the ventricular filling time and causes a further elevation in ...
Anatomy of the Human Heart
... aorta has its base at the aortic valve opening and shares the pericardial sheath with the pulmonary trunk as it extends upward. C C ...
... aorta has its base at the aortic valve opening and shares the pericardial sheath with the pulmonary trunk as it extends upward. C C ...
Congenital complete absence of left pericardium
... vessels were in free communication with the left pleural cavity. The left phrenic nerve passed down the anterior mediastinum medial to the internal mammary vessels till finally it entered the diaphragm in relation to its sternal origin. The left vagus nerve, having crossed the arch of the aorta, pas ...
... vessels were in free communication with the left pleural cavity. The left phrenic nerve passed down the anterior mediastinum medial to the internal mammary vessels till finally it entered the diaphragm in relation to its sternal origin. The left vagus nerve, having crossed the arch of the aorta, pas ...
Transseptal catheterization via right subclavian vein
... patients the tension of the needle on the iliac veins and inferior vena cava may cause great pain and prevent its advancement or manipulation. With massive right atrial enlargement usually due to severe tricuspid valve disease, there is distortion of the inferior vena cava, which alters the alignmen ...
... patients the tension of the needle on the iliac veins and inferior vena cava may cause great pain and prevent its advancement or manipulation. With massive right atrial enlargement usually due to severe tricuspid valve disease, there is distortion of the inferior vena cava, which alters the alignmen ...
The right ventricle: interaction with the pulmonary circulation
... (LV) filling, cardiac output responsiveness to increased metabolic demand is optimized. Since cardiac output is a function of metabolic demand of the body, during stress and exercise states the flow to the RV can vary widely. Also, instantaneous venous return varies widely for a constant cardiac out ...
... (LV) filling, cardiac output responsiveness to increased metabolic demand is optimized. Since cardiac output is a function of metabolic demand of the body, during stress and exercise states the flow to the RV can vary widely. Also, instantaneous venous return varies widely for a constant cardiac out ...
Transposition of the great arteries with atrial switch versus arterial
... ● Holter monitoring, event recorder: required for selected patients (high-risk, investigated for suspected or clinical arrhythmia) ...
... ● Holter monitoring, event recorder: required for selected patients (high-risk, investigated for suspected or clinical arrhythmia) ...
Mannequin - CHFpatients.com
... and New York Heart Association (NYHA) classification. Functional measurements were reported using degree of mitral valve regurgitation and ejection fraction pre-and post-operatively. ...
... and New York Heart Association (NYHA) classification. Functional measurements were reported using degree of mitral valve regurgitation and ejection fraction pre-and post-operatively. ...
1 A case report on Ebstein anomaly
... heart sound with loud tricuspid component and soft/absent mitral component in the presence of prolonged PR interval; usually normal second heart sound but may be widely split when pulmonary component delayed due to right bundle-branch block; third and fourth heart sounds commonly present, even in th ...
... heart sound with loud tricuspid component and soft/absent mitral component in the presence of prolonged PR interval; usually normal second heart sound but may be widely split when pulmonary component delayed due to right bundle-branch block; third and fourth heart sounds commonly present, even in th ...
SERIES ‘‘PHYSIOLOGY IN RESPIRATORY MEDICINE’’ A.T. Dinh-Xuan
... ventricle free wall pulmonary venous pressure changed little, and the dogs survived. Based on this finding they concluded that the right ventricle functions only as a passive conduit, since there were ‘‘no increments of venous pressure’’. This study suggested to many researchers that the right ventr ...
... ventricle free wall pulmonary venous pressure changed little, and the dogs survived. Based on this finding they concluded that the right ventricle functions only as a passive conduit, since there were ‘‘no increments of venous pressure’’. This study suggested to many researchers that the right ventr ...
Cardiovascular Magnetic Resonance Pocket Guide
... • Small (<1/2 aortic valve diameter) • High left to right velocity • Normal RV and pulmonary pressures • Non-restrictive • Large VSDs • RVH and pressure-loaded RV • Eisenmenger syndrome if uncorrected ...
... • Small (<1/2 aortic valve diameter) • High left to right velocity • Normal RV and pulmonary pressures • Non-restrictive • Large VSDs • RVH and pressure-loaded RV • Eisenmenger syndrome if uncorrected ...
article in press
... the administration of a drug capable of reducing the adrenergic response23 and possibly pulmonary vasculature blood pressure22 allowed the inclusion of this agent in the anesthesia. The bolus dose of dexmedetomidine (1 g kg−1 ) is purposely excluded. It is assumed that due to the effect on ␣2b rece ...
... the administration of a drug capable of reducing the adrenergic response23 and possibly pulmonary vasculature blood pressure22 allowed the inclusion of this agent in the anesthesia. The bolus dose of dexmedetomidine (1 g kg−1 ) is purposely excluded. It is assumed that due to the effect on ␣2b rece ...
Atrial septal defect
![](https://commons.wikimedia.org/wiki/Special:FilePath/Asd-web.jpg?width=300)
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.