Understanding Atrial Fibrillation
... People with untreated AF may be at greater risk for stroke than people with normal heart rhythms. Because blood does not flow through the atria smoothly, blood clots may form in the heart. If a blood clot is dislodged from the heart, it can travel through the bloodstream to the brain and result in a ...
... People with untreated AF may be at greater risk for stroke than people with normal heart rhythms. Because blood does not flow through the atria smoothly, blood clots may form in the heart. If a blood clot is dislodged from the heart, it can travel through the bloodstream to the brain and result in a ...
Understanding Atrial Fibrillation
... People with untreated AF may be at greater risk for stroke than people with normal heart rhythms. Because blood does not flow through the atria smoothly, blood clots may form in the heart. If a blood clot is dislodged from the heart, it can travel through the bloodstream to the brain and result in a ...
... People with untreated AF may be at greater risk for stroke than people with normal heart rhythms. Because blood does not flow through the atria smoothly, blood clots may form in the heart. If a blood clot is dislodged from the heart, it can travel through the bloodstream to the brain and result in a ...
Superior Vena Cava Syndrome Due toMetastasis of Endometrial
... in the right atrium, while conventional X-ray coronary angiography would not have led to the main diagnosis. The patient’s concomitant stenosis of the right coronary artery would likely have been interpreted as the cause of the elevated troponin and stenting would have concluded the patient’s in-hos ...
... in the right atrium, while conventional X-ray coronary angiography would not have led to the main diagnosis. The patient’s concomitant stenosis of the right coronary artery would likely have been interpreted as the cause of the elevated troponin and stenting would have concluded the patient’s in-hos ...
Pulmonary Vascular Resistance as Assessed by Bicycle Stress
... testing. PVR was calculated as the slope of a pulmonary artery systolic pressure (PAP)-flow plot or as the ratio of PAP to cardiac output (total PVR). The slope of PAP-flow was higher in patients with open (5.1⫾2.2 versus 3.0⫾0.8 mm Hg/L per min; P⫽0.002) and closed ASD (4.0⫾1.7 versus 3.0⫾0.8 mm Hg ...
... testing. PVR was calculated as the slope of a pulmonary artery systolic pressure (PAP)-flow plot or as the ratio of PAP to cardiac output (total PVR). The slope of PAP-flow was higher in patients with open (5.1⫾2.2 versus 3.0⫾0.8 mm Hg/L per min; P⫽0.002) and closed ASD (4.0⫾1.7 versus 3.0⫾0.8 mm Hg ...
dual chamber pace maker implantation through a persistent left
... venography to demonstrate the presence or absence of a venous connection to the right side and a right SVC [3]. In approximately 75% of these cases there is hypoplasia or agenesis of the left innominate vein, and therefore there is no connection to the right side [4]. Advance the electrode through t ...
... venography to demonstrate the presence or absence of a venous connection to the right side and a right SVC [3]. In approximately 75% of these cases there is hypoplasia or agenesis of the left innominate vein, and therefore there is no connection to the right side [4]. Advance the electrode through t ...
... clustering of HLHS, linkage analysis has been unproductive.17–20 However, embryologically, there are clues. The severe hypoplasia of left heart structures is probably a consequence of limited flow during development secondary to a primary abnormality of either left ventricular inflow or left ventric ...
Complex Supracardiac Total Anomalous Pulmonary Venous
... pulmonary artery, and 70/44 mmHg in the right pulmonary artery. A selective right pulmonary arteriogram ...
... pulmonary artery, and 70/44 mmHg in the right pulmonary artery. A selective right pulmonary arteriogram ...
Crocodilian Cardiac Dynamics: A Half-Hearted
... separated from the rest of the RV. This chamberhas a contractilewall with a lining of dense fibrous nodules projecting into and largely occluding the pulmonary outflow tract (Webb, 1979;van Mierop & Kutsche, 1985).These nodules intermesh when the myocardium beneath them contracts,forming a"cog-wheel ...
... separated from the rest of the RV. This chamberhas a contractilewall with a lining of dense fibrous nodules projecting into and largely occluding the pulmonary outflow tract (Webb, 1979;van Mierop & Kutsche, 1985).These nodules intermesh when the myocardium beneath them contracts,forming a"cog-wheel ...
ventricular septal defect in infants and children with increased
... Objective : To evaluate the surgical and medical efficacy of the patients operated for Ventricular Septal Defect (VSD) with Pulmonary Hypertension and Pulmonary Vascular Resistance (PVR). Infants and children with elevated PVR and Pulmonary Hypertension are associated with significant mortality and ...
... Objective : To evaluate the surgical and medical efficacy of the patients operated for Ventricular Septal Defect (VSD) with Pulmonary Hypertension and Pulmonary Vascular Resistance (PVR). Infants and children with elevated PVR and Pulmonary Hypertension are associated with significant mortality and ...
Structural heart disease interventions: rapid
... mitral valve orifice, thereby increasing the odds of achieving procedural success. Currently, there are two methods of using 3D image data to guide percutaneous interventions. The first uses a 3D CTA- or MRA-derived image set obtained pre-procedurally [14]. The image is segmented to illustrate impor ...
... mitral valve orifice, thereby increasing the odds of achieving procedural success. Currently, there are two methods of using 3D image data to guide percutaneous interventions. The first uses a 3D CTA- or MRA-derived image set obtained pre-procedurally [14]. The image is segmented to illustrate impor ...
Anatomy of the Heart
... Relationship to Congenital Heart Disease Knowledge of normal and abnormal embryologic development of the heart and blood vessels provides an essential basis for and understanding of the morphogenesis of congenital heart disease.8,9 The position of the atria is determined by general body habitus. The ...
... Relationship to Congenital Heart Disease Knowledge of normal and abnormal embryologic development of the heart and blood vessels provides an essential basis for and understanding of the morphogenesis of congenital heart disease.8,9 The position of the atria is determined by general body habitus. The ...
Idiopathic Pulmonary Arterial Hypertension and Coexisting
... pulmonary parenchyma, or in the great vessels. The patient was treated with enoxaparin 60 mg, subcutaneously, q12h for 2 days, and then changed to warfarin with the dosage adjusted and maintained an international normalized ratio 2-3. Both drugs were discontinued after a lung ventilation-perfusion s ...
... pulmonary parenchyma, or in the great vessels. The patient was treated with enoxaparin 60 mg, subcutaneously, q12h for 2 days, and then changed to warfarin with the dosage adjusted and maintained an international normalized ratio 2-3. Both drugs were discontinued after a lung ventilation-perfusion s ...
Tetralogy of Fallot Associated with Total Anomalous Pulmonary
... The symptomatology in isolated tetralogy of Fallot is related to decreased pulmonary blood flow and reduced systemic arterial saturation. Heart failure in classic tetralogy is very rare.l In contrast, infants with isolated total anomalous pulmonary venous drainage frequently present with congestive ...
... The symptomatology in isolated tetralogy of Fallot is related to decreased pulmonary blood flow and reduced systemic arterial saturation. Heart failure in classic tetralogy is very rare.l In contrast, infants with isolated total anomalous pulmonary venous drainage frequently present with congestive ...
Pulmonary Arterial Hypertension Patient Information
... higher than normal. Pulmonary hypertension (PH) is a general term that means that the blood pressure on the right side of your heart is too high, but does not explain why it is high. The high pressure could be caused by a medical condition such as; chronic lung disease, blood clots in the blood vess ...
... higher than normal. Pulmonary hypertension (PH) is a general term that means that the blood pressure on the right side of your heart is too high, but does not explain why it is high. The high pressure could be caused by a medical condition such as; chronic lung disease, blood clots in the blood vess ...
Continuous heart murmur: a sign of inestimable value
... can cause a complete heart block which can cause death or syncope29. This disorder is often linked to other congenital defects, primarily with interventricular communication, most often in type I or supracrestal30 it may also be associated with aortic regurgitation (41.9%), pulmonary stenosis (9.7%) ...
... can cause a complete heart block which can cause death or syncope29. This disorder is often linked to other congenital defects, primarily with interventricular communication, most often in type I or supracrestal30 it may also be associated with aortic regurgitation (41.9%), pulmonary stenosis (9.7%) ...
Free Sample
... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
Tetralogy of Fallot: TOF occurs in 5% to 10% of all congenital heart
... 1-Right axis deviation .In the acyanotic form, the QRS axis is normal. 2. RVH is usually present; BVH may be seen in the acyanotic form. RAH is occasionally present X-ray Studies 1-The heart size is normal or smaller than normal, and pulmonary vascular markings are decreased. “Black” lung fields are ...
... 1-Right axis deviation .In the acyanotic form, the QRS axis is normal. 2. RVH is usually present; BVH may be seen in the acyanotic form. RAH is occasionally present X-ray Studies 1-The heart size is normal or smaller than normal, and pulmonary vascular markings are decreased. “Black” lung fields are ...
Quantification of left-to-right shunting in adult congenital heart
... The current study is among the first to compare PCMRI and oximetry by cardiac catheterisation in freebreathing adults who have congenital heart disease. It confirms previous studies that have already shown the feasibility of this technique and a good correlation with invasive oximetry in children. I ...
... The current study is among the first to compare PCMRI and oximetry by cardiac catheterisation in freebreathing adults who have congenital heart disease. It confirms previous studies that have already shown the feasibility of this technique and a good correlation with invasive oximetry in children. I ...
I.T.I. “A. MALIGNANI” UDINE THE HEART First lesson
... The left side of your heart is another pump. Each side is kept completely separate. This way the deoxygenated blood on the right side does not mix with the oxygenated blood on the left side. On each side of the heart there are two chambers. The upper chambers are called atria (singular atrium). Bloo ...
... The left side of your heart is another pump. Each side is kept completely separate. This way the deoxygenated blood on the right side does not mix with the oxygenated blood on the left side. On each side of the heart there are two chambers. The upper chambers are called atria (singular atrium). Bloo ...
Route of Blood Flow Through the Heart
... a. The sinoatrial (SA) node of the heart acts as the pacemaker. b. The SA node is located on the upper wall of the left atrium. c. The AV node conducts action potentials rapidly through it. d. Action potentials are carried slowly through the atrioventricular bundle. e. Both the sinoatrial (SA) node ...
... a. The sinoatrial (SA) node of the heart acts as the pacemaker. b. The SA node is located on the upper wall of the left atrium. c. The AV node conducts action potentials rapidly through it. d. Action potentials are carried slowly through the atrioventricular bundle. e. Both the sinoatrial (SA) node ...
FREE Sample Here
... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
Gross anatomy of the heart in Ostrich (Struthio camelus)
... atrium consists of muscular ridges, the socalled pectinate muscles which are arranged in net-like fashion and terminate on a stout transverse arch, crista terminalis. Also a distinct sinus venosus is a part of the typical adult ostrich heart. The sinus venosus is a small triangular shaped chamber an ...
... atrium consists of muscular ridges, the socalled pectinate muscles which are arranged in net-like fashion and terminate on a stout transverse arch, crista terminalis. Also a distinct sinus venosus is a part of the typical adult ostrich heart. The sinus venosus is a small triangular shaped chamber an ...
Practical stepwise approach to rhythm disturbances in congenital
... most likely occur at an advanced age. The prevalence of late-onset atrial flutter or atrial fibrillation in atrial septal defect (ASD) increases progressively with aging, more so in patients who underwent surgery after 11 years of age and patients over the age of 402-4). Rhythm disturbances in ASD h ...
... most likely occur at an advanced age. The prevalence of late-onset atrial flutter or atrial fibrillation in atrial septal defect (ASD) increases progressively with aging, more so in patients who underwent surgery after 11 years of age and patients over the age of 402-4). Rhythm disturbances in ASD h ...
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.