Giant left atrial appendage aneurysm compressing the left anterior
... (LA) and or the appendage.3 LAAA is usually associated with atrial arrhythmias and thromboembolism. The most common symptoms are palpitation and/or dyspnea.4 Here, we are presenting a 16-year-old boy with a 3 months history of dyspnea and palpitation. On presentation, he had an atrial tachycardia ...
... (LA) and or the appendage.3 LAAA is usually associated with atrial arrhythmias and thromboembolism. The most common symptoms are palpitation and/or dyspnea.4 Here, we are presenting a 16-year-old boy with a 3 months history of dyspnea and palpitation. On presentation, he had an atrial tachycardia ...
Common Congenital Heart Disorders in Adults
... “atrioventricular septal defect”), often associated with a cleft mitral valve and mitral regurgitation. Sinus venosus defect (5 to 10%) is located directly between the left atrium and superior vena cava at the entrance of superior vena cava into the high right atrium. It is often associated with PAP ...
... “atrioventricular septal defect”), often associated with a cleft mitral valve and mitral regurgitation. Sinus venosus defect (5 to 10%) is located directly between the left atrium and superior vena cava at the entrance of superior vena cava into the high right atrium. It is often associated with PAP ...
Is our heart a well-designed pump? The heart along animal evolution
... has two chambers in fishes, three chambers (two atria and one ventricle) in amphibians and reptiles, and four chambers in birds and mammals. The ventricle of reptiles is partially divided in two cavities by an interventricular septum, leaving only a communication of variable size leading to a variab ...
... has two chambers in fishes, three chambers (two atria and one ventricle) in amphibians and reptiles, and four chambers in birds and mammals. The ventricle of reptiles is partially divided in two cavities by an interventricular septum, leaving only a communication of variable size leading to a variab ...
Cardiac Cycle
... SA node is also known as the pacemaker, which sets the beat of the heart. The SA node is located in the right atrium and triggers an electrical impulse. Developed by Geran Call in partial fulfillment for Master’s plan B ...
... SA node is also known as the pacemaker, which sets the beat of the heart. The SA node is located in the right atrium and triggers an electrical impulse. Developed by Geran Call in partial fulfillment for Master’s plan B ...
Pulmonary Artery Catheter
... increase the risk of hemodynamic instability? – (b) Surgery: Is the procedure associated with significant hemodynamic fluctuations which may cause end organ damage? – (c) Practice setting: Could the complications associated with hemodynamic disturbance be worsened if the technical or cognitive skill ...
... increase the risk of hemodynamic instability? – (b) Surgery: Is the procedure associated with significant hemodynamic fluctuations which may cause end organ damage? – (c) Practice setting: Could the complications associated with hemodynamic disturbance be worsened if the technical or cognitive skill ...
the evolution of surgical therapy for hypoplastic left heart
... • Risk Factors for Hospital Mortality and Morbidity – Shunt type did not affect hospital Mortality or Morbidity. Patient factors, pre-op condition and lower center volume ...
... • Risk Factors for Hospital Mortality and Morbidity – Shunt type did not affect hospital Mortality or Morbidity. Patient factors, pre-op condition and lower center volume ...
... normal even in the oedematous patient. By contrast the cardiac output is low in most other kinds of "heart failure". This paradox highlights our -present ignorance of the fundamental physiology of "heart failure". The term "congestive failure" is here used to describe -a clinical syndrome 'without i ...
Atrial Fibrillation
... AV synchrony, and loss of RR-regularity ► Embolic event/Stroke ► “conversion pauses” Patient with atrial fibrillation often have sick sinus syndrome and experiences a prolonged pause when they convert back to sinus rhythm which can lead to syncope. ...
... AV synchrony, and loss of RR-regularity ► Embolic event/Stroke ► “conversion pauses” Patient with atrial fibrillation often have sick sinus syndrome and experiences a prolonged pause when they convert back to sinus rhythm which can lead to syncope. ...
Atrial septostomy benefits severe pulmonary - AJP
... valves and the systemic and pulmonary circulations, including an atrial septal defect (ASD). Oxygen saturation was computed for each model compartment. The acute effect of AS on systemic flow and oxygen delivery in PH was assessed by a series of simulations with combinations of different ASD diamete ...
... valves and the systemic and pulmonary circulations, including an atrial septal defect (ASD). Oxygen saturation was computed for each model compartment. The acute effect of AS on systemic flow and oxygen delivery in PH was assessed by a series of simulations with combinations of different ASD diamete ...
Atrial Fibrillation Management: 2005
... Atrial Fibrillation: Magnitude of the Problem • 15-30% of all strokes from atrial fibrillation • Heart failure risk increased with atrial fibrillation • 2.5x mortality increase with atrial fibrillation (Framingham data) • 1 in 4 people age 40 will develop Afib • No effective or safe medications for ...
... Atrial Fibrillation: Magnitude of the Problem • 15-30% of all strokes from atrial fibrillation • Heart failure risk increased with atrial fibrillation • 2.5x mortality increase with atrial fibrillation (Framingham data) • 1 in 4 people age 40 will develop Afib • No effective or safe medications for ...
MUScUlAR VENtRicUlAR SEPtAl DEFEct
... should talk with your doctor to learn about the best treatment option for you or your child; however, there are a few standard approaches of which you should be aware. One option is medication which may be appropriate to help in treating symptoms associated with the muscular VSD. Other treatment opt ...
... should talk with your doctor to learn about the best treatment option for you or your child; however, there are a few standard approaches of which you should be aware. One option is medication which may be appropriate to help in treating symptoms associated with the muscular VSD. Other treatment opt ...
Pulmonary Blood Flow and Venous Return During
... field of pulmonary circulation concerns the effect of spontaneous respiration on blood flow in the pulmonary artery. According to pulmonary vascular bed perfusion experiments pulmonary flow diminishes due to an increase in resistance when the lungs are expanded by negative pressure in the closed che ...
... field of pulmonary circulation concerns the effect of spontaneous respiration on blood flow in the pulmonary artery. According to pulmonary vascular bed perfusion experiments pulmonary flow diminishes due to an increase in resistance when the lungs are expanded by negative pressure in the closed che ...
Left ventricle unloading during veno-arterial
... VA-ECMO currently represents the most efficient minimally invasive circulatory support system. It provides sufficient support to enable adequate tissue perfusion even in cardiac arrest, and the hemodynamic efficacy is superior to other available percutaneous circulatory support systems such as Impel ...
... VA-ECMO currently represents the most efficient minimally invasive circulatory support system. It provides sufficient support to enable adequate tissue perfusion even in cardiac arrest, and the hemodynamic efficacy is superior to other available percutaneous circulatory support systems such as Impel ...
cyanotic congenital heart disease - MEDICINE hack
... Abnormal coronary artery – 5%. Ant. decending branch from right coronary artery. ...
... Abnormal coronary artery – 5%. Ant. decending branch from right coronary artery. ...
Persistent left superior vena cava and right superior
... vena cava (2,19). Left caval drainage under these circumstances is usually into the right atrium by way of the coronary sinus, which is frequently accompanied by obliteration of the right superior vena cava. The right cava in our case was noted to adjoin the right superior pulmonary vein, thus estab ...
... vena cava (2,19). Left caval drainage under these circumstances is usually into the right atrium by way of the coronary sinus, which is frequently accompanied by obliteration of the right superior vena cava. The right cava in our case was noted to adjoin the right superior pulmonary vein, thus estab ...
About the heart - Cardiomyopathy UK
... This happens on the left side of the heart and takes oxygenated blood from the lungs to the heart and then from the heart to the body. • Blood leaves the lungs and returns to the heart, entering the left atrium through two veins called the pulmonary veins. • The atrium is relaxed (diastole) as blood ...
... This happens on the left side of the heart and takes oxygenated blood from the lungs to the heart and then from the heart to the body. • Blood leaves the lungs and returns to the heart, entering the left atrium through two veins called the pulmonary veins. • The atrium is relaxed (diastole) as blood ...
Editor – Dean F. Connors, MD, PhD
... patient with a dual-chamber pacemaker that has episodes of paroxysmal atrial fibrillation. DDI prevents high ventricular rates. Some DDD pacemakers are programmed to enter the DDI mode when high atrial rates occur. The fourth position, rate modulation, increases the patient’s heart rate in response ...
... patient with a dual-chamber pacemaker that has episodes of paroxysmal atrial fibrillation. DDI prevents high ventricular rates. Some DDD pacemakers are programmed to enter the DDI mode when high atrial rates occur. The fourth position, rate modulation, increases the patient’s heart rate in response ...
Hypoplastic left heart syndrome
... There are a number of possible causes of neurological impairment in HLHS. Post-mortem data has indicated that congenital brain anomalies may coexist with HLHS29. Some patients have been found to have cerebral ischemic changes or infarcts preoperatively28,30. Improved preoperative condition is one ma ...
... There are a number of possible causes of neurological impairment in HLHS. Post-mortem data has indicated that congenital brain anomalies may coexist with HLHS29. Some patients have been found to have cerebral ischemic changes or infarcts preoperatively28,30. Improved preoperative condition is one ma ...
Overview of Cardiac Anatomy
... Develop a better understanding of the anatomic relationships seen in 2D transesophageal echocardiography. ...
... Develop a better understanding of the anatomic relationships seen in 2D transesophageal echocardiography. ...
Right ventricular diastolic function in chronic obstructive lung disease
... Accepted after revision October 22, ...
... Accepted after revision October 22, ...
Porcine Heart Dissection with 2D/3D TEE and Surgical Correlation
... Develop a better understanding of the anatomic relationships seen in 2D transesophageal echocardiography. ...
... Develop a better understanding of the anatomic relationships seen in 2D transesophageal echocardiography. ...
Heart and Circulation of the African Lungfish
... via the opercula; after an hour or two of anesthesia, small amounts (20 to 100 ml) of a 1% solution of MS 222 were occasionally added to the water perfusing the gill chambers to maintain a stable level of anesthesia. The fish were easily maintained under these circumstances for several hours with le ...
... via the opercula; after an hour or two of anesthesia, small amounts (20 to 100 ml) of a 1% solution of MS 222 were occasionally added to the water perfusing the gill chambers to maintain a stable level of anesthesia. The fish were easily maintained under these circumstances for several hours with le ...
Ventricular Septal Defect With Secondary Left Ventricular–to–Right
... In this study, the diagnosis of perimembranous VSD was based on previous echocardiographic reports.15,16 In addition, the diagnostic hallmark for endocardial cushion defect, a left atrioventricular valve with 3 leaflets, could distinguish the endocardial cushion defect from perimembranous VSD. Aneur ...
... In this study, the diagnosis of perimembranous VSD was based on previous echocardiographic reports.15,16 In addition, the diagnostic hallmark for endocardial cushion defect, a left atrioventricular valve with 3 leaflets, could distinguish the endocardial cushion defect from perimembranous VSD. Aneur ...
Factfile: Pulmonary Hypertension
... or causes, has an incidence of 1-2/million per year. It is more common in women (F:M sex ratio 2.3:1) and occurs most commonly in the 3rd and 4th decades1. Often symptoms develop during pregnancy or soon after birth of a child. PPH is a progressive, usually fatal disorder with a mean survival withou ...
... or causes, has an incidence of 1-2/million per year. It is more common in women (F:M sex ratio 2.3:1) and occurs most commonly in the 3rd and 4th decades1. Often symptoms develop during pregnancy or soon after birth of a child. PPH is a progressive, usually fatal disorder with a mean survival withou ...
AP - Cardiovascular
... a. The first wave, the P wave, corresponds to the depolarization of the atria. b. The QRS complex corresponds to the depolarization of ventricles and hides the repolarization of atria. c. The T waves ends the ECG pattern and corresponds to ventricular repolarization. ...
... a. The first wave, the P wave, corresponds to the depolarization of the atria. b. The QRS complex corresponds to the depolarization of ventricles and hides the repolarization of atria. c. The T waves ends the ECG pattern and corresponds to ventricular repolarization. ...
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.