Factors influencing the spontaneous closure of ventricular septal
... years. The follow-up was terminated when spontaneous closure of the VSD occurred. Eighty-four patients were not included into the analyses because they were lost during followup or received surgical closure of VSD. We also did not include 31 cases of VSD children with complex congenital heart diseas ...
... years. The follow-up was terminated when spontaneous closure of the VSD occurred. Eighty-four patients were not included into the analyses because they were lost during followup or received surgical closure of VSD. We also did not include 31 cases of VSD children with complex congenital heart diseas ...
The Right Angle
... MRI showed biatrial enlargement, a dilated inferior vena cava and hepatic vein, a ventricular septal bounce, and mild pericardial thickening (Fig. 4 and Video 2). The hemodynamic and imaging findings are all consistent with constrictive pericarditis. Although the jugular venous pressure was not repo ...
... MRI showed biatrial enlargement, a dilated inferior vena cava and hepatic vein, a ventricular septal bounce, and mild pericardial thickening (Fig. 4 and Video 2). The hemodynamic and imaging findings are all consistent with constrictive pericarditis. Although the jugular venous pressure was not repo ...
Percutaneous Left-Atrial Appendage Closure Devices
... medications have recently received U.S. Food and Drug Administration (FDA) approval for this indication and have demonstrated noninferiority to warfarin in clinical trials. While anticoagulation is effective for stroke prevention, there is an increased risk of bleeding. Also, warfarin requires frequ ...
... medications have recently received U.S. Food and Drug Administration (FDA) approval for this indication and have demonstrated noninferiority to warfarin in clinical trials. While anticoagulation is effective for stroke prevention, there is an increased risk of bleeding. Also, warfarin requires frequ ...
fontan circulation
... The systemic venous return enters the pulmonary circulation, without an interposing ventricle, and All shunts at the venous, atrial, ventricular and arterial level are interrupted Thus places the systemic and pulmonary circulations in series driven by a SV ...
... The systemic venous return enters the pulmonary circulation, without an interposing ventricle, and All shunts at the venous, atrial, ventricular and arterial level are interrupted Thus places the systemic and pulmonary circulations in series driven by a SV ...
Atrial Fibrillation - Ministry of Health
... worrying. For most people, the management of atrial fibrillation is quite straight forward. Even though you have atrial fibrillation, you should still be able to enjoy a normal and active lifestyle. The main concern with atrial fibrillation is that it increases the risk of a stroke. Treatment can re ...
... worrying. For most people, the management of atrial fibrillation is quite straight forward. Even though you have atrial fibrillation, you should still be able to enjoy a normal and active lifestyle. The main concern with atrial fibrillation is that it increases the risk of a stroke. Treatment can re ...
How to do It : Closed Mitral Commissurotomy
... clot, or a MVA < 0.6, making finger or dilator dilatation difficult or hazardous. If the anteromedial commissure alone is opened, then further attempts to dilate the posterlateral commissure should be abandoned. Also, if MR is encounterd with intial dilatation, then further dilatation attempts shoul ...
... clot, or a MVA < 0.6, making finger or dilator dilatation difficult or hazardous. If the anteromedial commissure alone is opened, then further attempts to dilate the posterlateral commissure should be abandoned. Also, if MR is encounterd with intial dilatation, then further dilatation attempts shoul ...
Corporate Medical Policy
... Stroke prevention in atrial fibrillation (AF) is an important goal of treatment. Treatment with anticoagulant medications is the most common approach to stroke prevention. The majority of embolic strokes originate from the left atrial appendage (LAA); therefore, occlusion of the left atrial appendag ...
... Stroke prevention in atrial fibrillation (AF) is an important goal of treatment. Treatment with anticoagulant medications is the most common approach to stroke prevention. The majority of embolic strokes originate from the left atrial appendage (LAA); therefore, occlusion of the left atrial appendag ...
The Right Angle
... MRI showed biatrial enlargement, a dilated inferior vena cava and hepatic vein, a ventricular septal bounce, and mild pericardial thickening (Fig. 4 and Video 2). The hemodynamic and imaging findings are all consistent with constrictive pericarditis. Although the jugular venous pressure was not repo ...
... MRI showed biatrial enlargement, a dilated inferior vena cava and hepatic vein, a ventricular septal bounce, and mild pericardial thickening (Fig. 4 and Video 2). The hemodynamic and imaging findings are all consistent with constrictive pericarditis. Although the jugular venous pressure was not repo ...
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... therefore describes the relationship between right ventricular contractility and afterload, so-called right ventricle–pulmonary artery (RV-PA) coupling [18]. In addition to the aforementioned difficulties imaging the right ventricle, a clinically apparent decline in ejection fraction or stroke volum ...
... therefore describes the relationship between right ventricular contractility and afterload, so-called right ventricle–pulmonary artery (RV-PA) coupling [18]. In addition to the aforementioned difficulties imaging the right ventricle, a clinically apparent decline in ejection fraction or stroke volum ...
Right ventricular function
... Thus, the normal right ventricular pressure volume relationship is more trapezoidal or triangular, and the external mechanical work (the area subtended by the loop) proportionately smaller then that of a square wave pump with similar stroke volume and peak developed pressure. This capacity to eject ...
... Thus, the normal right ventricular pressure volume relationship is more trapezoidal or triangular, and the external mechanical work (the area subtended by the loop) proportionately smaller then that of a square wave pump with similar stroke volume and peak developed pressure. This capacity to eject ...
Cardiovascular System
... OR A 54-year-old man is experiencing chest pain and shortness of breath. The pain started approximately 45 minutes ago. The patient states the pain, which feels like tremendous pressure, is mostly on the left side of his chest and radiating down his left arm. He has taken two Nitroglycerin tablets w ...
... OR A 54-year-old man is experiencing chest pain and shortness of breath. The pain started approximately 45 minutes ago. The patient states the pain, which feels like tremendous pressure, is mostly on the left side of his chest and radiating down his left arm. He has taken two Nitroglycerin tablets w ...
The Heart
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
Comparison between pulmonary arterial and aortic root venting and
... with pulmonary arterial venting. We did not encounter this complication in our patients. In another study, it was reported that inadequacy in the pulmonary blood flow might result in insufficient pulmonary circulation and lung injury.[16] However, insufficiency in pulmonary circulation may be restor ...
... with pulmonary arterial venting. We did not encounter this complication in our patients. In another study, it was reported that inadequacy in the pulmonary blood flow might result in insufficient pulmonary circulation and lung injury.[16] However, insufficiency in pulmonary circulation may be restor ...
a study on the echocardiography of the mitral valve in normal
... regurgitation, and it can lead to symptoms and complications.Regurgitation doesn’t occur in all cases of MVP. In fact, the majority of people with MVP don’t have regurgitation and never have any symptoms or complications. In these people, even though the valve flaps prolapse, the valve is still able ...
... regurgitation, and it can lead to symptoms and complications.Regurgitation doesn’t occur in all cases of MVP. In fact, the majority of people with MVP don’t have regurgitation and never have any symptoms or complications. In these people, even though the valve flaps prolapse, the valve is still able ...
PDF - Circulation: Arrhythmia and Electrophysiology
... block. Unidirectional conduction block may allow atrial flutter only in 1 direction, either counterclockwise or clockwise. In this case, ablation of cavotricuspid isthmus led to change from counterclockwise flutter to clockwise flutter. A closer look at Figure 1 shows that the counterclockwise flutt ...
... block. Unidirectional conduction block may allow atrial flutter only in 1 direction, either counterclockwise or clockwise. In this case, ablation of cavotricuspid isthmus led to change from counterclockwise flutter to clockwise flutter. A closer look at Figure 1 shows that the counterclockwise flutt ...
Cryoablation Lesion with Atrial Arrhythmia after Fontan Operation
... • High morbidity & increased mortality rates because of tachycardia-induced cardiomyopathy, hemodynamic compromise, & thromboembolism, causing serious health concern &financial costs. • The aims of treatment are resortation of normal sinus rhythm, normal atrial contraction & atrioventricular conduct ...
... • High morbidity & increased mortality rates because of tachycardia-induced cardiomyopathy, hemodynamic compromise, & thromboembolism, causing serious health concern &financial costs. • The aims of treatment are resortation of normal sinus rhythm, normal atrial contraction & atrioventricular conduct ...
Ductus Arteriosus: Ecographic anatomy and closure
... in abnormal position, as seen in some cases of tetralogy of Fallot with pulmonary atresia and nonconfluent branches. Tortuosity is also seen as gestational age advances, which also becomes less straight. ...
... in abnormal position, as seen in some cases of tetralogy of Fallot with pulmonary atresia and nonconfluent branches. Tortuosity is also seen as gestational age advances, which also becomes less straight. ...
Goals of CMR status post atrial redirection surgery
... Atrial redirection surgery was performed prior to the availability of expertise to perform surgical arterial switch but may still be performed in selected cases or in patients deemed suitable for double switch for double discordance (ie atrial and arterial switch surgery). Illustrations from Brickne ...
... Atrial redirection surgery was performed prior to the availability of expertise to perform surgical arterial switch but may still be performed in selected cases or in patients deemed suitable for double switch for double discordance (ie atrial and arterial switch surgery). Illustrations from Brickne ...
Document
... and SSFP multislice gives advantage of jet recognition early on (jet flow is visible because signal is diminished where there is fluid shear due to dephasing caused by the presence of a range of velocities in a single voxel) ...
... and SSFP multislice gives advantage of jet recognition early on (jet flow is visible because signal is diminished where there is fluid shear due to dephasing caused by the presence of a range of velocities in a single voxel) ...
effects of norepinephrine on human pulmonary - Heart
... been given extensive consideration in recent articles (Burton, 1959; Blount and Grover, 1960; Swan and MacLean, 1960; Moret, Pattay, and Megevand, 1961). In the present study administration of norepinephrine produced a considerable rise of pulmonary arterial and pulmonary wedge pressure in group A, ...
... been given extensive consideration in recent articles (Burton, 1959; Blount and Grover, 1960; Swan and MacLean, 1960; Moret, Pattay, and Megevand, 1961). In the present study administration of norepinephrine produced a considerable rise of pulmonary arterial and pulmonary wedge pressure in group A, ...
Atrial Dysrhythmias
... • May occur in short bursts or may be sustained • Short bursts are well-tolerated in otherwise normally healthy people • With sustained rapid ventricular rates, ventricular filling may not be complete during diastole ...
... • May occur in short bursts or may be sustained • Short bursts are well-tolerated in otherwise normally healthy people • With sustained rapid ventricular rates, ventricular filling may not be complete during diastole ...
Cardiovascular
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
Effects of oxygen on exercise-induced increase of pulmonary arterial
... Echocardiography was carried out during an incremental exercise test, with a workload beginning at 25 watts and increasing by 20 watts every two minutes. We stopped exercise for symptoms (dyspnea or exhaustion). During the last minute of each incremental stage, measurements were performed. In additi ...
... Echocardiography was carried out during an incremental exercise test, with a workload beginning at 25 watts and increasing by 20 watts every two minutes. We stopped exercise for symptoms (dyspnea or exhaustion). During the last minute of each incremental stage, measurements were performed. In additi ...
Ventricles - science-b
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
... At the end of systole, all four valves are briefly closed at the same time Second heart sound is heard as semilunar valves close, causing “dup” sound Closure prevents blood backflow into ventricles ...
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.