Safe Right Bundle Branch Block Pattern During Permanent Right
... the lead perforates the interatrial septum, or is passed through an atrial septal defect inadvertently, and extends across the left atrium and through the mitral valve into the left ventricle (4). LV pacing may also develop as a result of inadvertent transarterial placement that allows the lead to c ...
... the lead perforates the interatrial septum, or is passed through an atrial septal defect inadvertently, and extends across the left atrium and through the mitral valve into the left ventricle (4). LV pacing may also develop as a result of inadvertent transarterial placement that allows the lead to c ...
transcatheter closure of patent ductus arteriosus using the amplatzer
... PDA angiographically was 4.2±0.8mm. Complete and immediate angiographic closure was present in 180 patients (88.24%).The remaining 24 patients had a trivial residual shunt. In one patient, who had a PDA type E according to Krichenko et al. classification, the duct joined the aorta at more acute angl ...
... PDA angiographically was 4.2±0.8mm. Complete and immediate angiographic closure was present in 180 patients (88.24%).The remaining 24 patients had a trivial residual shunt. In one patient, who had a PDA type E according to Krichenko et al. classification, the duct joined the aorta at more acute angl ...
Pulmonary Embolectomy: Should It Be Offered
... the reported series.4 Although Patient 1 and Patient 2 were referred for embolectomy because they had contraindications to thrombolytic therapy, we pursued an aggressive treatment plan because of the size of the clot. Pulmonary embolectomy has been considered a treatment of last resort, but recent s ...
... the reported series.4 Although Patient 1 and Patient 2 were referred for embolectomy because they had contraindications to thrombolytic therapy, we pursued an aggressive treatment plan because of the size of the clot. Pulmonary embolectomy has been considered a treatment of last resort, but recent s ...
Physiology of the fetal circulation (PDF Available)
... restrictive area with a mean diameter of 0.5 mm at mid-gestation and hardly exceeds 2 mm for the rest of a normal pregnancy.15,16 The umbilical venous pressure ranges from 2 to 9 mmHg6 (the portocaval pressure gradient), and causes the blood to accelerate from a mean of 10e22 cm/s in the umbilical v ...
... restrictive area with a mean diameter of 0.5 mm at mid-gestation and hardly exceeds 2 mm for the rest of a normal pregnancy.15,16 The umbilical venous pressure ranges from 2 to 9 mmHg6 (the portocaval pressure gradient), and causes the blood to accelerate from a mean of 10e22 cm/s in the umbilical v ...
Registries for paediatric pulmonary hypertension Georg Hansmann and Marius M. Hoeper
... Registries have become an important source of information in adult PAH (REVEAL (Registry to Evaluate Early And Long-term PAH Disease Management) [22], French Registry [23], COMPERA (Prospective Registry of Newly Initiated Therapies for Pulmonary Hypertension) [24], and more recently also in paediatr ...
... Registries have become an important source of information in adult PAH (REVEAL (Registry to Evaluate Early And Long-term PAH Disease Management) [22], French Registry [23], COMPERA (Prospective Registry of Newly Initiated Therapies for Pulmonary Hypertension) [24], and more recently also in paediatr ...
Nonsurgical Closure of Oversized Patent Ductus
... the PDA is usually cylindrical. Such cases also will present problems to the surgeon and are associated with increased surgical mortality. In an adult oversized PDA is usually accompanied by wall changes (sclerosis, aneurysmal conversion) and quite often additional complications may develop from pul ...
... the PDA is usually cylindrical. Such cases also will present problems to the surgeon and are associated with increased surgical mortality. In an adult oversized PDA is usually accompanied by wall changes (sclerosis, aneurysmal conversion) and quite often additional complications may develop from pul ...
Technique and Outcomes of Pulmonary Endarterectomy Surgery
... When the patient’s temperature reaches 20 oC, the aorta is cross-clamped and a single dose of cold cardioplegia solution is adm in istered. Additiona l myocardial protection is obtained by the use of a cooling jacket wrapped around the heart. The entire procedure is now performed with a single aorti ...
... When the patient’s temperature reaches 20 oC, the aorta is cross-clamped and a single dose of cold cardioplegia solution is adm in istered. Additiona l myocardial protection is obtained by the use of a cooling jacket wrapped around the heart. The entire procedure is now performed with a single aorti ...
Left Atrial Volume Combined With Atrial Pump Function
... remodeling, which is a substrate for atrial fibrillation, but impaired atrial pump function is also another aspect of the remodeling. Our objective was to differentiate patients with a history of paroxysmal atrial fibrillation using echocardiography. We studied 280 hypertensive patients (age: 66⫾7 y ...
... remodeling, which is a substrate for atrial fibrillation, but impaired atrial pump function is also another aspect of the remodeling. Our objective was to differentiate patients with a history of paroxysmal atrial fibrillation using echocardiography. We studied 280 hypertensive patients (age: 66⫾7 y ...
Cardioversion of "Common" Atrial
... man with long-standing hypertension and coro¬ nary artery disease was readmitted to the hospital 6 weeks follow¬ ing percutaneous coronary angioplasty because of increasing angina and dyspnea. The ECG on admission showed sinus rhythm and is¬ chemic repolarization abnormalities in the anterolateral l ...
... man with long-standing hypertension and coro¬ nary artery disease was readmitted to the hospital 6 weeks follow¬ ing percutaneous coronary angioplasty because of increasing angina and dyspnea. The ECG on admission showed sinus rhythm and is¬ chemic repolarization abnormalities in the anterolateral l ...
Lecture 021 Vascular - SuperPage for Joel R. Gober, PhD.
... pressure is high over here and low here, right, so fluid will always move from high to low just like the fusion. Okay? So blood is going to flow in this direction and look what happens to this valve. It opens up these little leaflets open up. But now, if it’s high pressure here and low here, which w ...
... pressure is high over here and low here, right, so fluid will always move from high to low just like the fusion. Okay? So blood is going to flow in this direction and look what happens to this valve. It opens up these little leaflets open up. But now, if it’s high pressure here and low here, which w ...
European experience of the convergent atrial fibrillation procedure
... or NavX (St Jude Medical, St Paul, Minn), were performed to identify breakthroughs between epicardial lesions along the pericardial reflections. Endocardial lesions were created to connect the epicardial lesions and complete the pulmonary vein isolation. Each site used the endocardial catheter and m ...
... or NavX (St Jude Medical, St Paul, Minn), were performed to identify breakthroughs between epicardial lesions along the pericardial reflections. Endocardial lesions were created to connect the epicardial lesions and complete the pulmonary vein isolation. Each site used the endocardial catheter and m ...
Partial atrioventricular canal defect: Long-term follow-up
... suture repair of the anterior mitral valve leaflet with appositioning of the cleft edges. Of the 19 patients with mitral valve repair alone (no annuloplasty), 14 had mild regurgitation, 4 had moderate regurgitation, and 1 had no valvular leak. Of four patients with both mitral cleft suture repair an ...
... suture repair of the anterior mitral valve leaflet with appositioning of the cleft edges. Of the 19 patients with mitral valve repair alone (no annuloplasty), 14 had mild regurgitation, 4 had moderate regurgitation, and 1 had no valvular leak. Of four patients with both mitral cleft suture repair an ...
thrombosis of the main pulmonary arteries - Heart
... The clot extended into the branches to all three lobes. Some of the vessels distal to the thrombus were still patent although numerous small branches showed dense firm fibrous strands in their lumina consistent with old organized thrombi; a few of these vessels had been recanalized. The left lung wa ...
... The clot extended into the branches to all three lobes. Some of the vessels distal to the thrombus were still patent although numerous small branches showed dense firm fibrous strands in their lumina consistent with old organized thrombi; a few of these vessels had been recanalized. The left lung wa ...
Vasoreactive Response to Maternal Hyperoxygenation in the Fetus
... each HLHS fetus during the phase I baseline, room air study was compared with the frequency-matched normal control population via unpaired Student t tests. HLHS fetuses were subdivided into groups depending on whether there was an open (n⫽34) versus restrictive/ intact atrial septum (n⫽9). Paired St ...
... each HLHS fetus during the phase I baseline, room air study was compared with the frequency-matched normal control population via unpaired Student t tests. HLHS fetuses were subdivided into groups depending on whether there was an open (n⫽34) versus restrictive/ intact atrial septum (n⫽9). Paired St ...
LETTERS TO THE EDITOR heart regardless of whether it is
... If we follow the concepts of Pernkopf, Wirtingand Asami as to the development of the heart, then the definitive right and left ventricles both have components of proampulla, metaampulla, and bulbus (conus-embryologic) in their composition. However, the left ventricle is mostly proampulla with lesser ...
... If we follow the concepts of Pernkopf, Wirtingand Asami as to the development of the heart, then the definitive right and left ventricles both have components of proampulla, metaampulla, and bulbus (conus-embryologic) in their composition. However, the left ventricle is mostly proampulla with lesser ...
Pulmonary Artery Acceleration Time Provides an Accurate Estimate
... of 500) did not have sufficient TR to measure TRVmax. One individual was excluded from analysis because of the presence of significant pulmonary valve stenosis. As such, 371 individuals were retained in the final analysis. In the final cohort (n = 317), the mean age was 63 6 17 years (range, 17–96 y ...
... of 500) did not have sufficient TR to measure TRVmax. One individual was excluded from analysis because of the presence of significant pulmonary valve stenosis. As such, 371 individuals were retained in the final analysis. In the final cohort (n = 317), the mean age was 63 6 17 years (range, 17–96 y ...
The Pulmonary Artery Catheter
... Ranges, and Dickinson Richards developed catheters that could be advanced into the pulmonary artery and used these catheters in the cardiac catheterization laboratory to study hemodynamics in patients with congenital and acquired heart diseases.10–12 Working at Bellevue Hospital in New York, Andre C ...
... Ranges, and Dickinson Richards developed catheters that could be advanced into the pulmonary artery and used these catheters in the cardiac catheterization laboratory to study hemodynamics in patients with congenital and acquired heart diseases.10–12 Working at Bellevue Hospital in New York, Andre C ...
The outcomes of operations for 539 patients with Ebstein anomaly
... modifications of TVrpr based on the numerous variants of Ebstein anomaly subsequently encountered.1 This includes TVrpr at the level of the functional tricuspid annulus by bringing the anterior papillary muscle or muscles toward the ventricular septum to facilitate coaptation of the leading edge of ...
... modifications of TVrpr based on the numerous variants of Ebstein anomaly subsequently encountered.1 This includes TVrpr at the level of the functional tricuspid annulus by bringing the anterior papillary muscle or muscles toward the ventricular septum to facilitate coaptation of the leading edge of ...
Cardiovascular Assessment of Infants and Children INTRODUCTION
... The clinical significance of the age of onset of congestive heart failure is as follows: 1. If a child becomes symptomatic due to congenital heart disease, there is a 95 percent probability that those symptoms will develop before 3 months of age and usually before 2 months. 2. Heart failure is rarel ...
... The clinical significance of the age of onset of congestive heart failure is as follows: 1. If a child becomes symptomatic due to congenital heart disease, there is a 95 percent probability that those symptoms will develop before 3 months of age and usually before 2 months. 2. Heart failure is rarel ...
Reference Values for and Determinants of Right Atrial Area in
... from the Department of Cardiology, and investigated for work eligibility. None of the control subjects had cardiovascular structural or functional abnormalities or received any medication. All subjects underwent a detailed history, physical examination, BSA, ECG, chest radiography, exercise test, an ...
... from the Department of Cardiology, and investigated for work eligibility. None of the control subjects had cardiovascular structural or functional abnormalities or received any medication. All subjects underwent a detailed history, physical examination, BSA, ECG, chest radiography, exercise test, an ...
Induced Changes in the Pattern of Pulmonary Blood Flow in the Rabbit
... unilateral hypoxia,6'7 and disease8"10 have only been measured or inferred. The present study was designed to satisfy two objectives: 1) to observe the pattern of the pulmonary blood flow in an intact, unanesthetized animal under conditions arranged to be as near to natural as possible; and 2) to de ...
... unilateral hypoxia,6'7 and disease8"10 have only been measured or inferred. The present study was designed to satisfy two objectives: 1) to observe the pattern of the pulmonary blood flow in an intact, unanesthetized animal under conditions arranged to be as near to natural as possible; and 2) to de ...
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.