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Supraventricular arrhythmias
... • A 68-year-old woman comes to the emergency department because of a racing heart for the past 2 hours. She reports a 2-year history of similar episodes, for which her physician instructed her to cough or strain. The episodes usually terminate after a few minutes of following her physician's instruc ...
... • A 68-year-old woman comes to the emergency department because of a racing heart for the past 2 hours. She reports a 2-year history of similar episodes, for which her physician instructed her to cough or strain. The episodes usually terminate after a few minutes of following her physician's instruc ...
Cor Pulmonale - CHEST Publications
... of breath with onset in the late 40's or early 50's with usually no prior history of asthma, pulmonary infection, or occupational exposure to dusts. The chief abnormal physical finding is marked emphysema. After two or three years of progressive dyspnea despite medical treatment they are either sent ...
... of breath with onset in the late 40's or early 50's with usually no prior history of asthma, pulmonary infection, or occupational exposure to dusts. The chief abnormal physical finding is marked emphysema. After two or three years of progressive dyspnea despite medical treatment they are either sent ...
Associations Between Cardiac Fibrosis and
... CTGF) in heart failure patients with and without longstanding AF. This study emphasizes that increased atrial stretch in advanced heart failure may perhaps contribute to the presence of AF. Our study demonstrated that HF patients in SR had extensive atrial fibrosis as measured by CVF. Compared to pr ...
... CTGF) in heart failure patients with and without longstanding AF. This study emphasizes that increased atrial stretch in advanced heart failure may perhaps contribute to the presence of AF. Our study demonstrated that HF patients in SR had extensive atrial fibrosis as measured by CVF. Compared to pr ...
Pulmonary 2 Circulation
... pulmonary veins averages about 2 mm Hg in the recumbent human being, varying from as low as 1 mm Hg to as high as 5 mm Hg. It usually is not feasible to measure a human being’s left atrial pressure using a direct measuring device because it is difficult to pass a catheter through the heart chambers ...
... pulmonary veins averages about 2 mm Hg in the recumbent human being, varying from as low as 1 mm Hg to as high as 5 mm Hg. It usually is not feasible to measure a human being’s left atrial pressure using a direct measuring device because it is difficult to pass a catheter through the heart chambers ...
Doppler Flow Patterns in the Evaluation of Pulmonary Hypertension
... Pulmonary arterial hypertension is defined as a group of diseases characterised by a progressive increase in pulmonary vascular load, leading to marked increase in pulmonary artery pressure, right ventricular failure and premature death. Given the nonspecific nature of its early symptoms and signs, ...
... Pulmonary arterial hypertension is defined as a group of diseases characterised by a progressive increase in pulmonary vascular load, leading to marked increase in pulmonary artery pressure, right ventricular failure and premature death. Given the nonspecific nature of its early symptoms and signs, ...
Chapter 9 Circulation: The Cardiovascular and Lymphatic Systems
... ventricle is the right AV valve, also known as the tricuspid valve because it has three cusps (flaps). The valve between the left atrium and ventricle is the left AV valve, which is a bicuspid valve with two cusps; it is often called the mitral valve (so named because it resembles a ...
... ventricle is the right AV valve, also known as the tricuspid valve because it has three cusps (flaps). The valve between the left atrium and ventricle is the left AV valve, which is a bicuspid valve with two cusps; it is often called the mitral valve (so named because it resembles a ...
Tricuspid Valve
... Ebstein's anomaly represents an anatomic, pathologic, and physiologic spectrum. There have been few hemodynamic correlates for the observed auscultatory events. Multiple components of the first sound and "ejection" sounds are frequently described. Cardiac catheterization, intracardiac sound-pressure ...
... Ebstein's anomaly represents an anatomic, pathologic, and physiologic spectrum. There have been few hemodynamic correlates for the observed auscultatory events. Multiple components of the first sound and "ejection" sounds are frequently described. Cardiac catheterization, intracardiac sound-pressure ...
Study Guide Respiratory-Circulatory Test 09 - WW
... system relate to the respiratory system? Circulatory to muscular, circulatory to etc.. 5. Why do we use models when studying the human body? Referring to those models we have used; what are the strengths and limitations of those models such as the Bell Jar, Syringe, Siphon pumps, etc. 6. What could ...
... system relate to the respiratory system? Circulatory to muscular, circulatory to etc.. 5. Why do we use models when studying the human body? Referring to those models we have used; what are the strengths and limitations of those models such as the Bell Jar, Syringe, Siphon pumps, etc. 6. What could ...
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... Consultant & Research Grant Support St. Jude Medical Amplatzer ASD & VSD trials Primary Investigator Consultant & Research Grant Support Abbott Vascular Primary Investigator for EVEREST/REALISM/COAPT (MitraClip) trials Proctor, Consultant, & Research Grant Support Edwards Lifesciences Primary Invest ...
... Consultant & Research Grant Support St. Jude Medical Amplatzer ASD & VSD trials Primary Investigator Consultant & Research Grant Support Abbott Vascular Primary Investigator for EVEREST/REALISM/COAPT (MitraClip) trials Proctor, Consultant, & Research Grant Support Edwards Lifesciences Primary Invest ...
Echocardiographic findings in pulmonary embolism: An important
... [3], spiral CT with contrast is the most widely used modality for diagnosis of pulmonary embolism. ECG findings are usually nonspecific. In fact, 33% of patients with pulmonary embolism have a normal ECG. The most common abnormal findings are sinus tachycardia and nonspecific ST-segment and T-wave c ...
... [3], spiral CT with contrast is the most widely used modality for diagnosis of pulmonary embolism. ECG findings are usually nonspecific. In fact, 33% of patients with pulmonary embolism have a normal ECG. The most common abnormal findings are sinus tachycardia and nonspecific ST-segment and T-wave c ...
Successful radiofrequency catheter ablation therapy of an
... secondary cardiomyopathy appear. Complaints related to dilated cardiomyopathy are observed in over 50% of cases. Tachycardia rates are usually between 120-300 bpm1-4. Our patient had only symptoms of palpitation and chest pain, but not cardiomyopathy. In children, abnormal focus is more frequently l ...
... secondary cardiomyopathy appear. Complaints related to dilated cardiomyopathy are observed in over 50% of cases. Tachycardia rates are usually between 120-300 bpm1-4. Our patient had only symptoms of palpitation and chest pain, but not cardiomyopathy. In children, abnormal focus is more frequently l ...
Atrial Fibrillation - Arrhythmia Alliance - Patient Information
... called electrical cardioversion, which is usually performed as a day case in hospital. Either heavy sedation or a shor t general anaesthetic (5 to 10 minutes) is given, after which the electric shock is delivered via a machine called a defibrillator, across the chest. In order to maximise the chance ...
... called electrical cardioversion, which is usually performed as a day case in hospital. Either heavy sedation or a shor t general anaesthetic (5 to 10 minutes) is given, after which the electric shock is delivered via a machine called a defibrillator, across the chest. In order to maximise the chance ...
SYSTEMIC - to- PULMONARY ARTERY SHUNTS
... infusion at 20 units/kg/hr Restart PGE1 infusion in neonate. Consider systemic antifibrinolytics Intervention: percutaneous (thrombolysis / PTCA / stent) surgical shunt revision ...
... infusion at 20 units/kg/hr Restart PGE1 infusion in neonate. Consider systemic antifibrinolytics Intervention: percutaneous (thrombolysis / PTCA / stent) surgical shunt revision ...
Chapter 1 Echocardiographic Assessment of Cardiac Output and
... The thin-walled right ventricle is sensitive to acute changes in pressure and/or volume. The RV may acutely dilate in response, increasing its overall dimensions and volume in response to these changes.4 It is therefore important to determine the RV size during initial assessment with echocardiograp ...
... The thin-walled right ventricle is sensitive to acute changes in pressure and/or volume. The RV may acutely dilate in response, increasing its overall dimensions and volume in response to these changes.4 It is therefore important to determine the RV size during initial assessment with echocardiograp ...
Backgrounder: The Risk of Stroke in Atrial Fibrillation
... Atrial fibrillation is an increasing burden on the global healthcare system because of the numbers of patients affected, the impact of stroke, and the cost of both inpatient and outpatient therapy.10 Atrial fibrillation is associated with significant economic costs from the perspective of statutory ...
... Atrial fibrillation is an increasing burden on the global healthcare system because of the numbers of patients affected, the impact of stroke, and the cost of both inpatient and outpatient therapy.10 Atrial fibrillation is associated with significant economic costs from the perspective of statutory ...
... may be a pressure gradient between the right ventricle and the pulmonary artery. This gradient is more or less positive in early systole, but becomes more or less negative at a variable stage of systolic ejection, depending on type and severity of pulmonary hypertension [16]. It may be added that th ...
General Year 11 sample assessment tasks - SCSA
... Locate the apex of the heart and measure the length of the heart from top to bottom. Record the length: __________________ Lay the heart with the apex closest to you and the groove with a blood vessel travelling diagonally from the right side of the wide part of the heart to a point just above and t ...
... Locate the apex of the heart and measure the length of the heart from top to bottom. Record the length: __________________ Lay the heart with the apex closest to you and the groove with a blood vessel travelling diagonally from the right side of the wide part of the heart to a point just above and t ...
Word Format - SCSA - School Curriculum and Standards Authority
... Locate the apex of the heart and measure the length of the heart from top to bottom. Record the length: __________________ Lay the heart with the apex closest to you and the groove with a blood vessel travelling diagonally from the right side of the wide part of the heart to a point just above and t ...
... Locate the apex of the heart and measure the length of the heart from top to bottom. Record the length: __________________ Lay the heart with the apex closest to you and the groove with a blood vessel travelling diagonally from the right side of the wide part of the heart to a point just above and t ...
Delayed Presentation of Ventricular Septal Rupture – A Case Report Case Reports
... Without reperfusion therapy VSR usually occurs in the first week. 3,5, 8,9,10 The median time from the onset of symptoms of AMI to rupture is generally 24 hours or less in patients who are receiving thrombolysis.22 ...
... Without reperfusion therapy VSR usually occurs in the first week. 3,5, 8,9,10 The median time from the onset of symptoms of AMI to rupture is generally 24 hours or less in patients who are receiving thrombolysis.22 ...
331 ANATOMIC AND HISTOLOGIC REVIEW OF THE CORONARY
... muscular CS-atrial connections and, 3) an previously undescribed muscular atrio-coronary sinus bundle. Two muscular tracts linking the CS to the right atrium (RA), (one antero-superior or septal, and another postero-inferior or atrial) were discovered as well. Microscopic findings: 1) striated myoca ...
... muscular CS-atrial connections and, 3) an previously undescribed muscular atrio-coronary sinus bundle. Two muscular tracts linking the CS to the right atrium (RA), (one antero-superior or septal, and another postero-inferior or atrial) were discovered as well. Microscopic findings: 1) striated myoca ...
Atrial Dissociation and Uniatrial Fibrillation
... A variety of terms has been used to describe dissociation between the atria; intraauricular,4' 8 interauricular,9 12, 19 interatrial,20 atrial2' dissociation, and interatrial block.20-23 There is clearly need for consistency and it would seem to us that the simplest, least ambiguous, and most accept ...
... A variety of terms has been used to describe dissociation between the atria; intraauricular,4' 8 interauricular,9 12, 19 interatrial,20 atrial2' dissociation, and interatrial block.20-23 There is clearly need for consistency and it would seem to us that the simplest, least ambiguous, and most accept ...
Importance of Atrial Compliance in Cardiac Performance
... and atrial pressure became smaller, the mean level of venous return flow increased, the atrial volume increased, the mean atrial pressure decreased, the ventricular stroke volume increased, and the enddiastolic volume increased; end-systolic volume, however, remained unchanged. Hence, cardiac output ...
... and atrial pressure became smaller, the mean level of venous return flow increased, the atrial volume increased, the mean atrial pressure decreased, the ventricular stroke volume increased, and the enddiastolic volume increased; end-systolic volume, however, remained unchanged. Hence, cardiac output ...
Understanding your child`s heart Tricuspid atresia
... are the main pumping chambers of the heart. Each ventricle pumps blood out into an artery. The right ventricle pumps blood – blue in the illustration – into the pulmonary artery (the blood vessel that takes blood to the lungs). The left ventricle pumps blood – red in the illustration – into the aort ...
... are the main pumping chambers of the heart. Each ventricle pumps blood out into an artery. The right ventricle pumps blood – blue in the illustration – into the pulmonary artery (the blood vessel that takes blood to the lungs). The left ventricle pumps blood – red in the illustration – into the aort ...
Importance of Atrial Compliance in Cardiac Performance
... twice ventricular stroke volume, while the parameters of ventricular contractility were kept unchanged. Cardiac output increased from 2,400 to 3,240 ml/min with increases in atrial compliance from 0.1 to 20 ml/mm Hg (venous return resistance 0.1 mm Hg sec/ml), whereas mean atrial pressure simultaneo ...
... twice ventricular stroke volume, while the parameters of ventricular contractility were kept unchanged. Cardiac output increased from 2,400 to 3,240 ml/min with increases in atrial compliance from 0.1 to 20 ml/mm Hg (venous return resistance 0.1 mm Hg sec/ml), whereas mean atrial pressure simultaneo ...
the Transcript - UPMC Physician Resources
... normal red blood cell, it will survive 90-120 days. But if you have homozygous SS disease that red cell will only survive 15-30 days. In fact this is one of the highest rates of hemolytic anemia of any human disease, only a few are worse, like paroxysmal nocturnal hemoglobinuria. So the average pati ...
... normal red blood cell, it will survive 90-120 days. But if you have homozygous SS disease that red cell will only survive 15-30 days. In fact this is one of the highest rates of hemolytic anemia of any human disease, only a few are worse, like paroxysmal nocturnal hemoglobinuria. So the average pati ...
Atrial septal defect
![](https://commons.wikimedia.org/wiki/Special:FilePath/Asd-web.jpg?width=300)
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.