Impact of Longitudinal Myocardial Deformation on the Prognosis of
... study. These negative results may be explained by the limitations of Tissue Doppler signal noise ratio which is particularly reduced by the misalignment issue of the Doppler sample volume22,, especially in HF patients with severe LV enlargement and myocardial Downloaded from http://circimaging.ahajo ...
... study. These negative results may be explained by the limitations of Tissue Doppler signal noise ratio which is particularly reduced by the misalignment issue of the Doppler sample volume22,, especially in HF patients with severe LV enlargement and myocardial Downloaded from http://circimaging.ahajo ...
Validation of echocardiographic methods for assessing left
... then approximated, the lungs were inflated, and the chest was closed. Sham animals (n ⫽ 7) were subjected to the same surgical procedure without coronary artery ligation. Echocardiography was performed 8 wk later under anesthesia (1.5–2.0% isoflurane by mask; see below). After 2 days, the rats were ...
... then approximated, the lungs were inflated, and the chest was closed. Sham animals (n ⫽ 7) were subjected to the same surgical procedure without coronary artery ligation. Echocardiography was performed 8 wk later under anesthesia (1.5–2.0% isoflurane by mask; see below). After 2 days, the rats were ...
Nuclear Cardiac Imaging and Myocardial Perfusion Study
... Single Photon Emission Computed Tomography is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information. This information is typically presented as cro ...
... Single Photon Emission Computed Tomography is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information. This information is typically presented as cro ...
Syncope - American College of Physicians
... Lightheaded spells or fainting with prolonged sitting or standing? ...
... Lightheaded spells or fainting with prolonged sitting or standing? ...
First report of pentalogy of Cantrell in a calf: a case report
... the literature in humans, and even fewer have had the complete syndrome confirmed. Only four of the 90 cases involved twins and only two of them described discordance for the anomaly (Rashid and Muraskas, 2007) like in the present report. Diagnosis of the complete syndrome requires the five criteria ...
... the literature in humans, and even fewer have had the complete syndrome confirmed. Only four of the 90 cases involved twins and only two of them described discordance for the anomaly (Rashid and Muraskas, 2007) like in the present report. Diagnosis of the complete syndrome requires the five criteria ...
THE HEART - Dr Magrann
... Tachycardia means the heart beats too fast (>100 BPM). Bradycardia means the heart beats too slowly (<50 BPM). Marathon runners may have bradycardia because their heart is in such good shape…before doing CPR, check for heart beat for a full 10 seconds! We can see the heart’s electrical signals on an ...
... Tachycardia means the heart beats too fast (>100 BPM). Bradycardia means the heart beats too slowly (<50 BPM). Marathon runners may have bradycardia because their heart is in such good shape…before doing CPR, check for heart beat for a full 10 seconds! We can see the heart’s electrical signals on an ...
radiofrequency catheter ablation for supraventricular tachycardias
... charm of this treatment modality is that most of the patients, once treated with EP/RFA, can have complete cure of their arrhythmia, and do not require any further drug therapy or follow-up. ...
... charm of this treatment modality is that most of the patients, once treated with EP/RFA, can have complete cure of their arrhythmia, and do not require any further drug therapy or follow-up. ...
2013 HF Guidelines: Focus on Rehabilitation, Exercise and Surgical
... vessel angioplasty continues to be the revascularization modality of choice for patients with acute coronary syndrome complicated by heart failure. 3.In highly selected cases, patients with advanced heart failure symptoms in association with large areas of dyskinetic and non-viable myocardium may ex ...
... vessel angioplasty continues to be the revascularization modality of choice for patients with acute coronary syndrome complicated by heart failure. 3.In highly selected cases, patients with advanced heart failure symptoms in association with large areas of dyskinetic and non-viable myocardium may ex ...
Assessment of clients with CVS conditions
... The patient's condition continues to improve en route to the hospital. You ask him if he has a history of ulcers, bleeding disorders, recent surgeries or stroke. He tells you that other than his high blood pressure and occasional chest pain, he has no other medical problems. You call your radio repo ...
... The patient's condition continues to improve en route to the hospital. You ask him if he has a history of ulcers, bleeding disorders, recent surgeries or stroke. He tells you that other than his high blood pressure and occasional chest pain, he has no other medical problems. You call your radio repo ...
Study of various cardiac arrhythmias in patients of acute myocardial
... kebach, in 1899, first detected AV block in conducting system, which were further classified by Mobitz in 1924. Oppenheimer and Rothschild reported the ECG changes associated with coronary artery disease in 1917. Salacedo Solnger, in 1935, first showed the presence of arrhythmias in AMI. In 1947, Cl ...
... kebach, in 1899, first detected AV block in conducting system, which were further classified by Mobitz in 1924. Oppenheimer and Rothschild reported the ECG changes associated with coronary artery disease in 1917. Salacedo Solnger, in 1935, first showed the presence of arrhythmias in AMI. In 1947, Cl ...
Full Text:PDF - The Turkish Journal of Pediatrics
... 300 beats/min in most cases5. In our patients, the atrial flutter varied between 286 and 400 beats/min. Atrial flutter in infants differs from other arrhythmias mostly in its clinical features5. It may occur with no apparent heart disease as early as during the first month of their life6,7. A charac ...
... 300 beats/min in most cases5. In our patients, the atrial flutter varied between 286 and 400 beats/min. Atrial flutter in infants differs from other arrhythmias mostly in its clinical features5. It may occur with no apparent heart disease as early as during the first month of their life6,7. A charac ...
Print - Circulation: Heart Failure
... (Hameln Pharmaceuticals, Germany) were given, and the animals where normoventilated. An introducer sheath catheter was placed in the left internal jugular vein, and anaesthesia was maintained throughout the experiment by a continuous infusion of 4.0 mg/kg/h pentobarbital sodium, 0.02 mg/kg/h fentany ...
... (Hameln Pharmaceuticals, Germany) were given, and the animals where normoventilated. An introducer sheath catheter was placed in the left internal jugular vein, and anaesthesia was maintained throughout the experiment by a continuous infusion of 4.0 mg/kg/h pentobarbital sodium, 0.02 mg/kg/h fentany ...
Correlation of blood pressure and the ratio of S1 to S2 as measured
... The mitral valve closes when the left ventricular pressure exceeds the left atrial pressure in the heart cycle, and, since the blood flows from high to low pressure, the mitral valve closes in order to prevent counter flow of blood from the left ventricle to the left atrium as the left ventricular ...
... The mitral valve closes when the left ventricular pressure exceeds the left atrial pressure in the heart cycle, and, since the blood flows from high to low pressure, the mitral valve closes in order to prevent counter flow of blood from the left ventricle to the left atrium as the left ventricular ...
Non-invasive measurement of chick embryo cardiac work
... 100 eggs from a parental flock of Rossa line (Rhode Island Red × Sussex) and 5 unfertilized table eggs were used in the study. In the non-invasive method of chick embryo cardiac work registration, an eggshell with electric charges on it is one capacitor plate, the other being a receiving antenna of ...
... 100 eggs from a parental flock of Rossa line (Rhode Island Red × Sussex) and 5 unfertilized table eggs were used in the study. In the non-invasive method of chick embryo cardiac work registration, an eggshell with electric charges on it is one capacitor plate, the other being a receiving antenna of ...
PowerPoint Presentation - McGraw Hill Higher Education
... originates in the atria close to the AV junction or in the AV junction itself • AV heart block is the most common cause of longer PR intervals • When the pacemaker site moves from beat to beat it causes the P’ waves to appear different and the P’R intervals to vary Fast & Easy ECGs, 2E ...
... originates in the atria close to the AV junction or in the AV junction itself • AV heart block is the most common cause of longer PR intervals • When the pacemaker site moves from beat to beat it causes the P’ waves to appear different and the P’R intervals to vary Fast & Easy ECGs, 2E ...
Interaction between the septum and the left (right) ventricular free
... Mathematical modelling of the cardiovascular system (CVS) can help in understanding the complex interactions between both the ventricles and the septum. By describing the behaviour of the left (right) ventricular free wall, atria and septum using the variable elastance models, it is possible to repr ...
... Mathematical modelling of the cardiovascular system (CVS) can help in understanding the complex interactions between both the ventricles and the septum. By describing the behaviour of the left (right) ventricular free wall, atria and septum using the variable elastance models, it is possible to repr ...
English
... study by Castleman and Towne 3 in an adult, reporting alterations in the right ventricle, such as myocardial loss resulting in thin walls with rare muscle fibers. Both cases had no antecedents of inflammatory processes, such as myocarditis or obstructive lesions in the coronary arteries, which could ...
... study by Castleman and Towne 3 in an adult, reporting alterations in the right ventricle, such as myocardial loss resulting in thin walls with rare muscle fibers. Both cases had no antecedents of inflammatory processes, such as myocarditis or obstructive lesions in the coronary arteries, which could ...
Adolescents with congenital heart diseases
... hospitalization with some of them necessitating intensive care (16%). The study also revealed that patients before 65 years of age required specialized treatment considerably more often than the remaining population of cardiac patients, which emphasizes the need for comprehensive medical care [8]. I ...
... hospitalization with some of them necessitating intensive care (16%). The study also revealed that patients before 65 years of age required specialized treatment considerably more often than the remaining population of cardiac patients, which emphasizes the need for comprehensive medical care [8]. I ...
Cardioversion of acute atrial fibrillation in the emergency department
... In all patients presenting to the emergency department with acute AF, immediate provision of supplementary oxygen, establishment of an intravenous line, continuous electrocardiographic monitoring, blood pressure and 12 lead ECG is mandatory. In the emergency department assessment of AF (Table 8): It ...
... In all patients presenting to the emergency department with acute AF, immediate provision of supplementary oxygen, establishment of an intravenous line, continuous electrocardiographic monitoring, blood pressure and 12 lead ECG is mandatory. In the emergency department assessment of AF (Table 8): It ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.