EXPERIMENTS ON THE CAUSATION AND AMELIORATION
... acutely, but all were killed after at least 20 minutes had elapsed, by clamping the heart or by medullary puncture. Moreover, the pulmonary edema observed in the excised lungs was only slight in four, and fair to moderate in the other three experiments. In these experiments the right auricle and rig ...
... acutely, but all were killed after at least 20 minutes had elapsed, by clamping the heart or by medullary puncture. Moreover, the pulmonary edema observed in the excised lungs was only slight in four, and fair to moderate in the other three experiments. In these experiments the right auricle and rig ...
Curriculum Vitae - The Royal Children`s Hospital
... As Chef de Clinique (Assistant Professor) in Paris, I had teaching responsibilities in the Department to medical students and interns. In the University Paris VI, I was part of the team responsible for the teaching of Cardiology and Surgery to third, forth and fifth year medical students. In Melbour ...
... As Chef de Clinique (Assistant Professor) in Paris, I had teaching responsibilities in the Department to medical students and interns. In the University Paris VI, I was part of the team responsible for the teaching of Cardiology and Surgery to third, forth and fifth year medical students. In Melbour ...
anomalous left coronary artery arising from pulmonary - Heart
... at birth, rather than to consequently developed collateral circulation in the latter" [adult type]. Of particular interest, therefore, is the child here presented, who was closely followed during a long period of severe cardiac disability beginning at about the age of 5 months with manifestations of ...
... at birth, rather than to consequently developed collateral circulation in the latter" [adult type]. Of particular interest, therefore, is the child here presented, who was closely followed during a long period of severe cardiac disability beginning at about the age of 5 months with manifestations of ...
anomalous left coronary artery arising from pulmonary - Heart
... at birth, rather than to consequently developed collateral circulation in the latter" [adult type]. Of particular interest, therefore, is the child here presented, who was closely followed during a long period of severe cardiac disability beginning at about the age of 5 months with manifestations of ...
... at birth, rather than to consequently developed collateral circulation in the latter" [adult type]. Of particular interest, therefore, is the child here presented, who was closely followed during a long period of severe cardiac disability beginning at about the age of 5 months with manifestations of ...
Experimental Demonstration of Concealed AV
... AV dissociation'3 has developed. All antegrade (sinus) impulses are blocked but artificial ventricular impulses capture the atria completely (-P) or partially (PF) when they occur within a certain time interval after a sinus P wave. On the basis of these facts, the following conclusions can be drawn ...
... AV dissociation'3 has developed. All antegrade (sinus) impulses are blocked but artificial ventricular impulses capture the atria completely (-P) or partially (PF) when they occur within a certain time interval after a sinus P wave. On the basis of these facts, the following conclusions can be drawn ...
Series ‘‘CHRONIC THROMBOEMBOLIC PULMONARY HYPERTENSION’’
... In contrast to the pulmonary circulation, the bronchial circulation has a remarkable ability to proliferate [36]. Numerous reports have documented hypertrophy and angiogenesis of the bronchial circulation in response to a variety of stimuli, including chronic lung infections, pulmonary artery occlus ...
... In contrast to the pulmonary circulation, the bronchial circulation has a remarkable ability to proliferate [36]. Numerous reports have documented hypertrophy and angiogenesis of the bronchial circulation in response to a variety of stimuli, including chronic lung infections, pulmonary artery occlus ...
Myocardial infarction with Q waves
... atria and two lower - the ventricles. These two types of heart chambers perform different functions: the atria collect blood coming into the heart and push it into the ventricles and the ventricles eject blood from the heart into the arteries through which it enters into all parts of the body. The t ...
... atria and two lower - the ventricles. These two types of heart chambers perform different functions: the atria collect blood coming into the heart and push it into the ventricles and the ventricles eject blood from the heart into the arteries through which it enters into all parts of the body. The t ...
approach to cyanotic congenital
... Assess whether the pt. has a life-threatening condition eg. a deeply blue child, Severe respiratory distress / shock. Infants with HF : Cyanotic CHD with PBF is more likely Neonates with Shock : Often Ductus dependent CHD. Older infants / children with cyanosis :TOF or its variants. ...
... Assess whether the pt. has a life-threatening condition eg. a deeply blue child, Severe respiratory distress / shock. Infants with HF : Cyanotic CHD with PBF is more likely Neonates with Shock : Often Ductus dependent CHD. Older infants / children with cyanosis :TOF or its variants. ...
Atrial Fibrillation : Present Treatment Protocols by Drugs and Interventions Abstract
... and beta blockers when used for initial ventricular rate control is their cardio-depressive effects, particularly in patients with heart failure. However, as a common practice – though not appropriately supported by data, one should feel comfortable in using these agents with an echocardiographic or ...
... and beta blockers when used for initial ventricular rate control is their cardio-depressive effects, particularly in patients with heart failure. However, as a common practice – though not appropriately supported by data, one should feel comfortable in using these agents with an echocardiographic or ...
Relative Contributions of the Atrial Systole
... When the As-Vs interval during sequential atrioventricular pacing was adjusted to more closely approximate the prevailing As-Vs interval during atrial pacing, the difference in left ventricular end-diastolic pressure and circumference and mean left atrial pressure between these two types of pacing w ...
... When the As-Vs interval during sequential atrioventricular pacing was adjusted to more closely approximate the prevailing As-Vs interval during atrial pacing, the difference in left ventricular end-diastolic pressure and circumference and mean left atrial pressure between these two types of pacing w ...
National Medical Policy
... dimensional WMS and 2D gray-scale echocardiography showed the strongest correlations to LE-MRI. The tested 3D strain method suffers from low temporal and spatial resolution in 3D acquisitions and added diagnostic value could not be proven. Kidawa et al (2013) reported that knowledge of right ventri ...
... dimensional WMS and 2D gray-scale echocardiography showed the strongest correlations to LE-MRI. The tested 3D strain method suffers from low temporal and spatial resolution in 3D acquisitions and added diagnostic value could not be proven. Kidawa et al (2013) reported that knowledge of right ventri ...
Diastolic Dysfunction and Diastolic Heart Failure By Mohammad M
... With MRI it is not only possible to collect anatomic data, but also functional data of the heart. These functional data can be obtained using different MR techniques, including cine MR imaging and myocardial tagging with radiofrequency pulses. With phase velocity mapping it is possible to evaluate p ...
... With MRI it is not only possible to collect anatomic data, but also functional data of the heart. These functional data can be obtained using different MR techniques, including cine MR imaging and myocardial tagging with radiofrequency pulses. With phase velocity mapping it is possible to evaluate p ...
Catheter Ablation of Supraventricular and Ventricular Arrhythmias
... pathway. The catheter inserted in the coronary sinus anatomically marks the AV groove and helps in mapping leftsided accessory pathways. In patients with right-sided accessory pathways, the procedure is performed using either the femoral or subclavian approach. The ablation catheter is carefully adv ...
... pathway. The catheter inserted in the coronary sinus anatomically marks the AV groove and helps in mapping leftsided accessory pathways. In patients with right-sided accessory pathways, the procedure is performed using either the femoral or subclavian approach. The ablation catheter is carefully adv ...
Pericarditis Guide
... for several years, even when they are feeling well. Previous treatment included the use of steroids, such as prednisone; however, this has been found in many cases to cause dependency on the medication to prevent a return of symptoms. In addition, steroids can reactivate the original viral infection ...
... for several years, even when they are feeling well. Previous treatment included the use of steroids, such as prednisone; however, this has been found in many cases to cause dependency on the medication to prevent a return of symptoms. In addition, steroids can reactivate the original viral infection ...
Regulation of atrial natriuretic peptide
... the atria and ventricles (Ruskoaho, 1992). Cardiac ischemia Ischemia is one of the most potent stimuli for ANP secretion, which can be viewed as an important homeostatic mechanism since ANP can produce cardiac vasodilatation to increase blood flow and oxygen delivery to the heart as well as peripher ...
... the atria and ventricles (Ruskoaho, 1992). Cardiac ischemia Ischemia is one of the most potent stimuli for ANP secretion, which can be viewed as an important homeostatic mechanism since ANP can produce cardiac vasodilatation to increase blood flow and oxygen delivery to the heart as well as peripher ...
A Comprehensive look At heart structure, function, and health
... Amber Vogel, Director of Widening Horizons in Science Education (WHISE) at the University of North Carolina at Chapel Hill. The contents of this module are the responsibility of the authors, and do not necessarily represent the official views of NCRR or NIH. Additional support for ...
... Amber Vogel, Director of Widening Horizons in Science Education (WHISE) at the University of North Carolina at Chapel Hill. The contents of this module are the responsibility of the authors, and do not necessarily represent the official views of NCRR or NIH. Additional support for ...
The Fontan circulation: who controls cardiac output?
... Every congenital heart surgeon can confirm that, when creating an aorto-pulmonary shunt, heart rate increases significantly upon opening the shunt when removing the vascular clamp. Moreover, the ‘chronotropic incompetence’ may not be bad at all, or even lifesaving: tachycardia not proportional to ou ...
... Every congenital heart surgeon can confirm that, when creating an aorto-pulmonary shunt, heart rate increases significantly upon opening the shunt when removing the vascular clamp. Moreover, the ‘chronotropic incompetence’ may not be bad at all, or even lifesaving: tachycardia not proportional to ou ...
Diastolic Heart Failure and Critical Illness
... Vasan and Levy tried to rationalize the diagnosis with pragmatic criteria which are not yet widely used in the cardiologic literature [8]. They separated three sequential steps for the diagnosis: (1) diagnosis of CHF, (2) preserved systolic LV function (LVEF > 50%), (3) documentation of LV diastolic ...
... Vasan and Levy tried to rationalize the diagnosis with pragmatic criteria which are not yet widely used in the cardiologic literature [8]. They separated three sequential steps for the diagnosis: (1) diagnosis of CHF, (2) preserved systolic LV function (LVEF > 50%), (3) documentation of LV diastolic ...
The effect of connexin40 deficiency on ventricular conduction
... endocardium. (C) This pattern is similar at ED11.5, where a rich network of the pectinate muscles could be seen in both atrial appendages. White dots indicate the position of the PIR, devoid of Cx40, corresponding externally to forming interventricular groove. (A, B, C) Tissue autofluorescence in th ...
... endocardium. (C) This pattern is similar at ED11.5, where a rich network of the pectinate muscles could be seen in both atrial appendages. White dots indicate the position of the PIR, devoid of Cx40, corresponding externally to forming interventricular groove. (A, B, C) Tissue autofluorescence in th ...
An introduction to electrocardiogram monitoring
... particularly important as some patients can find it quite daunting. • If it is necessary to do so, carefully shave the patient’s chest to remove excess chest hair (Drew et al., 2005). This will help to ensure a better skin-electrode contact and will also make it less uncomfortable for the patient wh ...
... particularly important as some patients can find it quite daunting. • If it is necessary to do so, carefully shave the patient’s chest to remove excess chest hair (Drew et al., 2005). This will help to ensure a better skin-electrode contact and will also make it less uncomfortable for the patient wh ...
Distention of the Immature Left ... Fibroelastosis: An Animal Model of ...
... myocarditis [3], lysosomal storage diseases [4], idiopathic or genetic dilated cardiomyopathies ...
... myocarditis [3], lysosomal storage diseases [4], idiopathic or genetic dilated cardiomyopathies ...
Brugada Syndrome - Circulation: Arrhythmia and Electrophysiology
... cardiac abnormalities.1,2 Patients are at risk for sudden cardiac death (SCD) due to ventricular fibrillation (VF). Since 1953, the ECG pattern similar to coved-type ST-segment elevation was reported as a normal variant in the healthy population or related to VF with structural abnormality,3–5 but a ...
... cardiac abnormalities.1,2 Patients are at risk for sudden cardiac death (SCD) due to ventricular fibrillation (VF). Since 1953, the ECG pattern similar to coved-type ST-segment elevation was reported as a normal variant in the healthy population or related to VF with structural abnormality,3–5 but a ...
Mayo Clinic Cardiology Board - Review Questions and Answers
... warranty, express or implied, with respect to the contents of the publication. This book should not be relied on apart from the advice of a qualified health care provider. The authors, editors, and publisher have exerted efforts to ensure that drug selection and dosage set forth in this text are in ...
... warranty, express or implied, with respect to the contents of the publication. This book should not be relied on apart from the advice of a qualified health care provider. The authors, editors, and publisher have exerted efforts to ensure that drug selection and dosage set forth in this text are in ...
Echocardiographic Measurement of Right Ventricular Wall Thickness
... in infants and young patients who have a thin chest wall,3 4 because of interference by the gaseous tissue of the lung and because of problems due to the physical properties of ultrasound. Only the right ventricular dimension described by Popp et al.6 was found to be a clue to the estimation of the ...
... in infants and young patients who have a thin chest wall,3 4 because of interference by the gaseous tissue of the lung and because of problems due to the physical properties of ultrasound. Only the right ventricular dimension described by Popp et al.6 was found to be a clue to the estimation of the ...
PDF Full-text
... In fishes, and probably many amphibians and reptiles, the contraction of the sinus venosus contributes significantly to atrial filling [21,24,37], which, in turn, augments ventricular filling, which is important for the maintenance of cardiac output [67]. In ectothermic vertebrates, passive filling ...
... In fishes, and probably many amphibians and reptiles, the contraction of the sinus venosus contributes significantly to atrial filling [21,24,37], which, in turn, augments ventricular filling, which is important for the maintenance of cardiac output [67]. In ectothermic vertebrates, passive filling ...
Lutembacher's syndrome
Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑